Abstract Abstract
The Dja Faunal Reserve located in southeastern Cameroon represents the largest and best protected rainforest patch in Cameroon. Here we make available a dataset on the inventory of tree species collected across the Dja. For this study nine 5 km long and 5 m wide transects were installed. All species with a diameter at breast height greater than 10 cm were recorded, identified and measured. A total of 11546 individuals were recorded, corresponding to a total of 312 species identified with 60 genera containing unidentified taxa. Of the 54 identified families Fabaceae, Rubiaceae and Malvaceae were the most species rich, whereas Fabaceae, Phyllantaceae and Olacaceae were the most abundant. Finally, Tabernaemontana crassa was the most abundant species across the Reserve. This dataset provides a unique insight into the tree diversity of the Dja Faunal Reserve and is now publically available and usable.
Keywords: Africa, diversity, transect, Dja Faunal Reserve, conservation, species inventory
Introduction
Tropical rainforests are among the most diverse plant communities worldwide and contain more than 50% of the Earth’s species diversity (Parmentier et al. 2007). Rain forests are remarkable by the diversity of tree species they contain, in places reaching up to 300 different species within a single hectare of inventoried forest (Valencia et al. 1994). Yet inventory of species in tropical countries remains challenging (Campbell and Hammond 1989). The Republic of Cameroon, situated on the Atlantic Coast in the Gulf of Guinea, covers 475440 km² and has such a great diversity of habitats that it is often compared to "a small Africa".
Although Cameroon has been better explored by botanists than most of other Central African countries (Letouzey 1968), its flora remains incompletely known, and several new species are described or newly recorded every year (e.g. Cheek 2009, Droissart et al. 2009, Lachenaud and Séné 2012, Sonké et al. 2009, Lachenaud et al. 2013). This is partly due to the high botanical diversity of the country (e.g. Kenfack et al. 2007) which includes many endemics (Onana 2011). In addition, botanical efforts have tended to focus on some specific sites (e.g. Mt Cameroon, Bakossi mountains, Campo Ma'an National Park; Cheek et al. 2004, Cable and Cheek 1998, Tchouto et al. 2006), leaving other areas almost unexplored, especially in the west and southeast (Onana 2011, Droissart et al. 2012). The present contribution publishes the results of an inventory made some years ago in the Dja Faunal Reserve, a UNESCO World Heritage Site, located in southeastern Cameroon. Its altitude is between 500 and 700 m and covers an area of 526,000 ha mainly classified as moist evergreen tropical forests (Letouzey 1985) and belongs to the Guineo-congolian phytochoria of (White 1979). It is bounded on three-quarters of its periphery by a natural barrier that is the Dja river. The reserve also belongs to the TRIDOM forest block that encompasses several other major reserves such as Odzala National Parc in the République du Congo and the Minkébé Natinal Parc in Gabon. This region is characterized by a low collection density of botanical specimens and are thus fragmentarily known (Valkenburg et al. 1998, Onana 2011, Droissart et al. 2012).
The present dataset was available only under printed form (Sonké 2004, Sonké 1998). Here we make it available open access under electronic form. This dataset has been used to assess the role of dispersal and niche differentiation in explaining species distribution across the reserve (Hardy and Sonké 2004).
Project description
Title
Tree Inventory of the Dja Faunal Reserve, South Cameroon.
Personnel
Bonaventure Sonké
Study area description
The dataset contains tree inventory of nine 5 km long 5 meters wide transects across the Dja Faunal Reserve. The Dja Forest Reserve is situated at 2°50 – 3°30 N and 12°20 – 13°40 E in southeastern Cameroon, bounded on three sides by the Dja River (Fig. 1), a major tributary of the Congo river, within the area known as the southern plateau. Most of the Dja Faunal Reserve is situated at 600–700 m above the sea level and covers 526,000 ha making it one of the largest and best protected areas of lowland rainforest across tropical Africa. The monthly average temperature lies between 23.5 °C and 24.5 °C and the annual rainfall between 1180 mm and 2350 mm. There are four major vegetation types in the Dja: primary terra firme primary forest (74% of total individuals collected occurring in this vegetation type); (ii) secondary forest (8% of total individuals); (iii) gaps (4% of total individuals). Finally, two hydromorphic types were defined as (iv) swamps (11%) and (v) flooded forest (3%). The different vegetation types across each transect are provided in Suppl. material 2. Transects were placed at the following coordinates:
T1: start: 12.8573; 3.3243; end: 12.8622; 3.2824
T2: start: 12.8637; 3.2303; end: 12.8622; 3.2726
T3: start: 12.8695; 3.1752; end: 12.8636; 3.2183
T4: start: 12.8846; 3.0895; end: 12.8787; 3.1325
T5: start: 12.5367; 3.1816; end: 12.5866; 3.1787
T6: start: 12.5958; 3.1936; end: 12.6447; 3.1925
T7: start: 13.3293; 2.9203; end: 13.3301; 2.8792
T8: start: 13.3105; 2.9787; end: 13.3133; 2.9403
T9: start: 13.5287; 3.0510; end: 13.5817; 3.0498
There are local Baka people living in the forest practicing subsistence hunting and gathering, thus there is some minimal human pressure on the forest. The forest has its full compliment of large animals, including Western Lowland Gorillas (Gorilla gorilla gorilla) and African forest elephants (Loxodonto Africana cyclotis) (Dupain et al. 2004).
Funding
Collection of the data in the field was funded by the European Union project ECOFAC.
Sampling methods
Study extent
The dataset was collected between August 1993 and August 1995.
Sampling description
A line transect approach was chosen to sample forest diversity because it covers the heterogeneity of the forest better than a square plot. We used standardized methods to install the transects, identify, map, measure and re-measure the trees (Baker et al. 2004). Each transect line was 5 meters wide and 5 km long. A total of 9 such transects were done at different places across the reserve Fig. 1. All trees ≥ 10 cm dbh (diameter at breast height, 1.3 m or above all deformities, notable buttresses, if present), were identified, mapped, individually numbered with an aluminium tag and nail, and measured with a diameter tape, or estimated if this the correct point of measurement was not possible to reach. Trees were identified up to species level, and in some cases just up to genus level. Voucher specimens were collected and deposited in different herbaria (mainly YA) and in case of any doubt, supplementary material was collected for further identifications.
Quality control
The present dataset was updated to match the APG III classification of angiosperm families (APGIII 2003) and all species names were checked for validity (spelling and authorship) against online databses (http://tnrs.iplantcollaborative.org/index.html, http://ipni.org; http://plants.jstor.org/; http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php).
Step description
The dataset presented here was collected over a period of three years.
Geographic coverage
Description
Data was collected in 9 different sites across the reserve as illustrated in Fig. 1.
Coordinates
13.666667 and 2.833333 Latitude; 12.333333 and 3.5 Longitude.
Taxonomic coverage
Description
The dataset contains a total of 11546 tagged individuals representing 312 total taxa identified to species level (Table 1) belonging to 54 families and 213 genera (a few photos of selected species are provided in Figs 2, 3). For 60 genera some individuals remained unidentified (marked as sp.). This is mainly related to the poorly known taxonomy of those genera or lack of appropriate material (e.g. flowers) to provide a definite determination. The raw data is available in Suppl. material 1.
Table 1.
Species_name | Author_name | APGIII_family_name |
---|---|---|
Afzelia bella | Harms | Fabaceae |
Afzelia bipindensis | Harms | Fabaceae |
Aidia micrantha | (K. Schum.) Bullock ex F. White | Rubiaceae |
Albizia adianthifolia | (Schumach.) W. Wight | Fabaceae |
Albizia ferruginea | (Guill. & Perr.) Benth. | Fabaceae |
Albizia glaberrima | Benth. | Fabaceae |
Albizia gummifera | (J.F. Gmel.) C.A. Sm. | Fabaceae |
Albizia zygia | J.F. Macbr. | Fabaceae |
Allanblackia floribunda | Oliv. | Clusiaceae |
Allanblackia gabonensis | Bamps | Clusiaceae |
Allophylus africanus | P. Beauv. | Sapindaceae |
Alstonia boonei | De Wild. | Apocynaceae |
Amphimas ferrugineus | Pierre ex Harms | Fabaceae |
Amphimas pterocarpoides | Harms | Fabaceae |
Angylocalyx pynaertii | De Wild. | Fabaceae |
Annickia affinis | (Exell) Versteegh & Sosef | Annonaceae |
Anonidium mannii | Engl. & Diels | Annonaceae |
Anopyxis klaineana | (Pierre) Engl. | Rhizophoraceae |
Anthonotha cladantha | (Harms) J. Léonard | Fabaceae |
Anthonotha fragrans | (Baker f.) Exell & Hillc. | Fabaceae |
Anthonotha macrophylla | P. Beauv. | Fabaceae |
Antidesma laciniatum | Aubrév. | Phyllanthaceae |
Antidesma membranaceum | Müll. Arg. | Phyllanthaceae |
Antidesma venosum | E. Mey. ex Tul. | Phyllanthaceae |
Antrocaryon klaineanum | Pierre | Anacardiaceae |
Antrocaryon micraster | A. Chev. & Guillaumin | Anacardiaceae |
Aoranthe cladantha | (K. Schum.) Somers | Rubiaceae |
Aulacocalyx jasminiflora | Hook. f. | Rubiaceae |
Autranella congolensis | (De Wild.) A. Chev. | Sapotaceae |
Baillonella toxisperma | Pierre | Sapotaceae |
Balanites wilsoniana | Dawe & Sprague | Zygophyllaceae |
Barteria nigritana subsp. fistulosa | (Mast.) Sleumer | Passifloraceae |
Belonophora coriacea | Hoyle | Rubiaceae |
Bertiera racemosa | (G. Don) K. Schum. | Rubiaceae |
Blighia sapida | K.D. Koenig | Sapindaceae |
Blighia welwitschii | (Hiern) Radlk. | Sapindaceae |
Bombax brevicuspe | Sprague | Malvaceae |
Bombax buonopozense | P. Beauv. | Malvaceae |
Brenania brieyi | (De Wild.) Petit | Rubiaceae |
Bridelia grandis | Pierre ex Hutch. | Phyllanthaceae |
Bridelia micrantha | (Hochst.) Baill. | Phyllanthaceae |
Buchnerodendron speciosum | Gürke | Achariaceae |
Calpocalyx dinklagei | Harms | Fabaceae |
Canarium schweinfurthii | Engl. | Burseraceae |
Carapa procera | DC. | Meliaceae |
Casearia barteri | Mast. | Salicaceae |
Cavacoa quintasii | (Pax & K. Hoffm.) Leonard | Euphorbiaceae |
Ceiba pentandra | (L.) Gaertn. | Malvaceae |
Celtis adolfi-friderici | Engl. | Cannabaceae |
Celtis gomphophylla | Baker | Cannabaceae |
Celtis tessmannii | Rendle | Cannabaceae |
Celtis zenkeri | Engl. | Cannabaceae |
Centroplacus glaucinus | Pierre | Centroplacaceae |
Chlamydocola chlamydantha | (K. Schum.) M. Bodard | Malvaceae |
Chrysophyllum africanum | A. DC. | Sapotaceae |
Chrysophyllum boukokoense | (Aubrév. & Pellegr.) L. Gaut. | Sapotaceae |
Chrysophyllum lacourtianum | De Wild. | Sapotaceae |
Chrysophyllum pruniforme | Pierre ex Engl. | Sapotaceae |
Chytranthus atroviolaceus | Baker f. ex Hutch. & Dalziel | Sapindaceae |
Chytranthus macrobotrys | (Gilg) Exell & Mendonça | Sapindaceae |
Clausena anisata | (Willd.) Hook. f. ex Benth. | Rutaceae |
Cleistopholis glauca | Pierre ex Engl. & Diels | Annonaceae |
Cleistopholis patens | (Benth.) Engl. & Diels | Annonaceae |
Coelocaryon botryoides | Vermoesen | Myristicaceae |
Coelocaryon preussii | Warb. | Myristicaceae |
Cola acuminata | (P. Beauv.) Schott & Endl. | Malvaceae |
Cola altissima | Engl. | Malvaceae |
Cola ballayi | Cornu ex Heckel | Malvaceae |
Cola flavo-velutina | K. Schum. | Malvaceae |
Cola lateritia | K. Schum. | Malvaceae |
Cola verticillata | (Thonn.) Stapf ex A. Chev. | Malvaceae |
Cordia aurantiaca | Baker | Boraginaceae |
Cordia platythyrsa | Baker | Boraginaceae |
Corynanthe pachyceras | K. Schum. | Rubiaceae |
Croton oligandrus | Pierre ex Hutch. | Euphorbiaceae |
Crotonogyne preussii | Pax | Euphorbiaceae |
Cuviera cuvieroides | (Wernham) Onana | Rubiaceae |
Cylicodiscus gabunensis | Harms | Fabaceae |
Dacryodes buettneri | (Engl.) H.J. Lam | Burseraceae |
Dacryodes edulis | (G. Don) H.J. Lam | Burseraceae |
Dacryodes klaineana | (Pierre) H.J. Lam | Burseraceae |
Desbordesia glaucescens | (Engl.) Tiegh. | Irvingiaceae |
Desplatsia chrysochlamys | (Mildbr. & Burret) Mildbr. & Burret | Malvaceae |
Desplatsia dewevrei | (De Wild. & T. Durand) Burret | Malvaceae |
Detarium macrocarpum | Harms | Fabaceae |
Dialium bipindense | Harms | Fabaceae |
Dialium dinklagei | Harms | Fabaceae |
Dialium guineense | Willd. | Fabaceae |
Dialium zenkeri | Harms | Fabaceae |
Dichostemma glaucescens | Pierre | Euphorbiaceae |
Diospyros bipindensis | Gürke | Ebenaceae |
Diospyros cinnabarina | (Gürke) F. White | Ebenaceae |
Diospyros conocarpa | Gürke & K. Schum. | Ebenaceae |
Diospyros crassiflora | Hiern | Ebenaceae |
Diospyros hoyleana | F. White | Ebenaceae |
Diospyros suaveolens | Gürke | Ebenaceae |
Discoglypremna caloneura | (Pax) Prain | Euphorbiaceae |
Distemonanthus benthamianus | Baill. | Fabaceae |
Dracaena arborea | (Willd.) Link | Asparagaceae |
Drypetes aframensis | Hutch. | Putranjivaceae |
Drypetes africana | Vahl | Putranjivaceae |
Drypetes afzelii | (Pax) Hutch. | Putranjivaceae |
Drypetes capillipes | (Pax) Pax & K. Hoffm. | Putranjivaceae |
Drypetes chevalieri | Beille | Putranjivaceae |
Drypetes gossweileri | S. Moore | Putranjivaceae |
Drypetes klainei | Pierre ex Pax | Putranjivaceae |
Drypetes laciniata | (Pax) Hutch. | Putranjivaceae |
Drypetes molunduana | Pax & K. Hoffm. | Putranjivaceae |
Drypetes paxii | Hutch. | Putranjivaceae |
Drypetes staudtii | (Pax) Hutch. | Putranjivaceae |
Duboscia macrocarpa | A. Chev. | Malvaceae |
Duguetia staudtii | (Engl. & Diels) Chatrou | Annonaceae |
Elaeophorbia grandifolia | (Haw.) Croizat | Euphorbiaceae |
Entada gigas | (L.) Fawc. & Rendle | Fabaceae |
Entandrophragma angolense | (Welw. ex C. DC.) C. DC. | Meliaceae |
Entandrophragma candollei | Harms | Meliaceae |
Entandrophragma cylindricum | (Sprague) Sprague | Meliaceae |
Eribroma oblongum | (Mast.) Pierre ex A. Chev. | Malvaceae |
Eriocoelum macrocarpum | Gilg ex Radlk. | Sapindaceae |
Erismadelphus exsul | Mildbr. | Vochysiaceae |
Erythrophleum suaveolens | (Guill. & Perr.) Brenan | Fabaceae |
Fernandoa adolphi-friderici | (Gilg & Mildbr.) Heine | Bignoniaceae |
Ficus exasperata | Vahl | Moraceae |
Ficus mucuso | Welw. ex Ficalho | Moraceae |
Ficus sur | Forssk. | Moraceae |
Funtumia africana | (Benth.) Stapf | Apocynaceae |
Funtumia elastica | (Preuss) Stapf | Apocynaceae |
Garcinia kola | Heckel | Clusiaceae |
Garcinia gnetoides | Hutch. & Dalziel | Clusiaceae |
Garcinia mannii | Oliv. | Clusiaceae |
Garcinia punctata | Oliv. | Clusiaceae |
Garcinia smeathmannii | (Planch. & Triana) Oliv. | Clusiaceae |
Gilbertiodendron dewevrei | (De Wild.) J. Léonard | Fabaceae |
Glyphaea brevis | (Spreng.) Monach. | Malvaceae |
Gossweilerodendron joveri | Normand ex Aubrév. | Fabaceae |
Greenwayodendron suaveolens | (Engl. & Diels) Verdc. | Annonaceae |
Grewia brunnea | K. Schum. | Malvaceae |
Grewia coriacea | Mast. | Malvaceae |
Grewia oligoneura | Sprague | Malvaceae |
Guarea cedrata | (A. Chev.) Pellegr. | Meliaceae |
Guarea thompsonii | Sprague & Hutch. | Meliaceae |
Harungana madagascariensis | Lam. ex Poir. | Hypericaceae |
Heinsia crinita | (Afzel.) G. Taylor | Rubiaceae |
Heisteria trillesiana | Pierre | Olacaceae |
Heisteria zimmereri | Engl. | Olacaceae |
Hexalobus crispiflorus | A. Rich. | Annonaceae |
Homalium discophylum | Jacq. | Salicaceae |
Homalium le-testui | Pellegr. | Salicaceae |
Hylodendron gabunense | Taub. | Fabaceae |
Hymenocardia lyrata | Tul. | Phyllanthaceae |
Hymenostegia afzelii | (Oliv.) Harms | Fabaceae |
Irvingia excelsa | Mildbr. | Irvingiaceae |
Irvingia gabonensis | (Aubry-Lecomte ex O'Rorke) Baill. | Irvingiaceae |
Irvingia grandifolia | (Engl.) Engl. | Irvingiaceae |
Irvingia robur | Mildbr. | Irvingiaceae |
Keayodendron bridelioides | (Gilg & Mildbr. ex Hutch. & Dalziel) Leandri | Phyllanthaceae |
Khaya ivorensis | A. Chev. | Meliaceae |
Klaineanthus gaboniae | Pierre ex Prain | Euphorbiaceae |
Klainedoxa gabonensis | Pierre ex Engl. | Irvingiaceae |
Klainedoxa microphylla | A.H. Gentry | Irvingiaceae |
Lannea welwitschii | (Hiern) Engl. | Anacardiaceae |
Lasiodiscus mannii | Hook. f. | Rhamnaceae |
Lecaniodiscus cupanioides | Planch. ex Benth. | Sapindaceae |
Lepidobotrys staudtii | Engl. | Lepidobotryaceae |
Leptactina involucrata | Hook. f. | Rubiaceae |
Lindackeria echinata | C. Presl | Achariaceae |
Lovoa trichilioides | Harms | Meliaceae |
Macaranga barteri | Müll. Arg. | Euphorbiaceae |
Macaranga occidentalis | (Müll. Arg.) Müll. Arg. | Euphorbiaceae |
Macaranga spinosa | Müll. Arg. | Euphorbiaceae |
Maesobotrya klaineana | (Pierre) J. Léonard | Phyllanthaceae |
Maesopsis eminii | Engl. | Rhamnaceae |
Mammea africana | G. Don | Calophyllaceae |
Manilkara letouzei | Aubrév. | Sapotaceae |
Manilkara obovata | (Sabine & G. Don) J.H. Hemsl. | Sapotaceae |
Maprounea membranacea | Pax & K. Hoffm. | Euphorbiaceae |
Maranthes chrysophylla | (Oliv.) Prance | Chrysobalanaceae |
Maranthes glabra | (Oliv.) Prance | Chrysobalanaceae |
Mareyopsis longifolia | (Pax) Pax & K. Hoffm. | Euphorbiaceae |
Margaritaria discoidea | (Baill.) G.L. Webster | Phyllanthaceae |
Markhamia lutea | (Benth.) K. Schum. | Bignoniaceae |
Massularia acuminata | (G. Don) Bullock ex Hoyle | Rubiaceae |
Memecylon afzelii | G. Don | Melastomataceae |
Microdesmis puberula | Hook. f. ex Planch. | Pandaceae |
Microdesmis zenkeri | Pax | Pandaceae |
Milicia excelsa | (Welw.) C.C. Berg | Moraceae |
Millettia laurentii | De Wild. | Fabaceae |
Millettia sanagana | Harms | Fabaceae |
Mitragyna stipulosa | (DC.) Kuntze | Rubiaceae |
Monodora myristica | (Gaertn.) Dunal | Annonaceae |
Monodora tenuifolia | Benth. | Annonaceae |
Musanga cecropioides | R. Br. ex Tedlie | Urticaceae |
Myrianthus arboreus | P. Beauv. | Urticaceae |
Nauclea diderrichii | (De Wild.) Merr. | Rubiaceae |
Nauclea pobeguinii | (Hua ex Pobég.) Merr. | Rubiaceae |
Nesogordonia papaverifera | (A. Chev.) Capuron ex N. Hallé | Malvaceae |
Ochna calodendron | Gilg & Mildbr. | Ochnaceae |
Odyendyea gabonensis | (Pierre) Engl. | Simaroubaceae |
Omphalocarpum elatum | Miers | Sapotaceae |
Omphalocarpum lecomteanum | Pierre ex Engl. | Sapotaceae |
Oncoba echinata | Oliv. | Salicaceae |
Oncoba gilgiana | Sprague | Salicaceae |
Oncoba glauca | (P. Beauv.) Planch. | Salicaceae |
Oncoba welwitschii | Oliv. | Salicaceae |
Ongokea gore | (Hua) Pierre | Olacaceae |
Ophiobotrys zenkeri | Gilg | Salicaceae |
Oxyanthus speciosus | DC. | Rubiaceae |
Pancovia pedicellaris | Radlk. & Gilg | Sapindaceae |
Panda oleosa | Pierre | Pandaceae |
Parinari excelsa | Sabine | Chrysobalanaceae |
Parkia bicolor | A. Chev. | Fabaceae |
Pauridiantha callicarpoides | (Hiern) Bremek. | Rubiaceae |
Pauridiantha efferata | N. Hallé | Rubiaceae |
Pauridiantha floribunda | (K. Schum. & K. Krause) Bremek. | Rubiaceae |
Pausinystalia macroceras | (K. Schum.) Pierre | Rubiaceae |
Pentaclethra macrophylla | Benth. | Fabaceae |
Pentadesma butyracea | Sabine | Clusiaceae |
Persea americana | Mill. | Lauraceae |
Petersianthus macrocarpus | (P. Beauv.) Liben | Lecythidaceae |
Phyllocosmus africanus | (Hook. f.) Klotzsch | Ixonanthaceae |
Phyllocosmus sessiliflorus | Oliv. | Ixonanthaceae |
Picralima nitida | (Stapf) T. Durand & H. Durand | Apocynaceae |
Piptadeniastrum africanum | (Hook. f.) Brenan | Fabaceae |
Plagiostyles africana | (Müll. Arg.) Prain | Euphorbiaceae |
Pouteria altissima | (A. Chev.) Baehni | Sapotaceae |
Pouteria pierrei | (A. Chev.) E.O. Beal | Sapotaceae |
Pseudospondias microcarpa | (A. Rich.) Engl. | Anacardiaceae |
Psidium guajava | L. | Myrtaceae |
Pteleopsis hylodendron | Mildbr. | Combretaceae |
Pterocarpus mildbraedii | Harms | Fabaceae |
Pterocarpus soyauxii | Taub. | Fabaceae |
Pterygota bequaertii | De Wild. | Malvaceae |
Pycnanthus angolensis | (Welw.) Warb. | Myristicaceae |
Quassia undulata | (Guill. & Perr.) D. Dietr. | Simaroubaceae |
Raphia monbuttorum | Drude | Arecaceae |
Raphia regalis | Becc. | Arecaceae |
Rauvolfia caffra | Sond. | Apocynaceae |
Rauvolfia vomitoria | Wennberg | Apocynaceae |
Rhabdophyllum bracteolatum | (Gilg) Farron | Ochnaceae |
Ricinodendron heudelotii | (Baill.) Pierre ex Pax | Euphorbiaceae |
Rinorea longifolia | De Wild. | Violaceae |
Rinorea oblongifolia | (C.H. Wright) Marquand ex Chipp | Violaceae |
Rinorea spongiocarpa | Achound. | Violaceae |
Rinorea subsessilis | M. Brandt | Violaceae |
Rinorea welwitschii | Kuntze | Violaceae |
Rothmannia lateriflora | (K. Schum.) Keay | Rubiaceae |
Rothmannia lujae | (De Wild.) Keay | Rubiaceae |
Santiria trimera | (Oliv.) Aubrév. | Burseraceae |
Sapium ellipticum | (Hochst.) Pax | Euphorbiaceae |
Schrebera arborea | A. Chev. | Oleaceae |
Scottellia klaineana | Pierre | Achariaceae |
Sorindeia grandifolia | Engl. | Anacardiaceae |
Spathodea campanulata | P. Beauv. | Bignoniaceae |
Staudtia kamerunensis | Warb. | Myristicaceae |
Sterculia tragacantha | Lindl. | Malvaceae |
Streblus usambarensis | (Engl.) C.C. Berg | Moraceae |
Strephonema pseudo-cola | A. Chev. | Combretaceae |
Strombosia grandifolia | Hook. f. | Olacaceae |
Strombosia pustulata | Oliv. | Olacaceae |
Strombosia scheffleri | Engl. | Olacaceae |
Strombosia zenkeri | Engl. | Olacaceae |
Strombosiopsis tetrandra | Engl. | Olacaceae |
Symphonia globulifera | L. f. | Clusiaceae |
Synsepalum brevipes | (Baker) T.D. Penn. | Sapotaceae |
Synsepalum dulcificum | (Schumach. & Thonn.) Daniell | Sapotaceae |
Synsepalum longecuneatum | De Wild. | Sapotaceae |
Syzygium guineense | (Willd.) DC. | Myrtaceae |
Syzygium rowlandii | Sprague | Myrtaceae |
Tabernaemontana citrifolia | L. | Apocynaceae |
Tabernaemontana crassa | Benth. | Apocynaceae |
Tapura africana | Oliv. | Dichapetalaceae |
Teclea afzelii | Engl. | Rutaceae |
Terminalia superba | Engl. & Diels | Combretaceae |
Tessmannia africana | Harms | Fabaceae |
Tetracera alnifolia | Willd. | Dilleniaceae |
Tetracera stuhlmanniana | Gilg | Dilleniaceae |
Tetrapleura tetraptera | (Schumach. & Thonn.) Taub. | Fabaceae |
Tetrorchidium didymostemon | (Baill.) Pax & K. Hoffm. | Euphorbiaceae |
Treculia africana | Decne. ex Trécul | Moraceae |
Trema orientalis | (L.) Blume | Cannabaceae |
Tricalysia anomala | E.A. Bruce | Rubiaceae |
Tricalysia crepiniana | De Wild. & T. Durand | Rubiaceae |
Tricalysia discolor | Brenan | Rubiaceae |
Trichilia monadelpha | (Thonn.) J.J. de Wilde | Meliaceae |
Trichilia prieuriana | A. Juss. | Meliaceae |
Trichilia rubescens | Oliv. | Meliaceae |
Trichilia tessmannii | Harms | Meliaceae |
Trichilia welwitschii | C. DC. | Meliaceae |
Trichoscypha acuminata | Engl. | Anacardiaceae |
Trichoscypha arborea | A. Chev. | Anacardiaceae |
Tridesmostemon omphalocarpoides | Engl. | Sapotaceae |
Trilepisium madagascariense | DC. | Moraceae |
Triplochiton scleroxylon | K. Schum. | Malvaceae |
Turraeanthus africana | (Welw. ex C. DC.) Pellegr. | Meliaceae |
Uapaca acuminata | (Hutch.) Pax & K. Hoffm. | Phyllanthaceae |
Uapaca guineensis | Müll. Arg. | Phyllanthaceae |
Uapaca paludosa | Aubrév. & Leandri | Phyllanthaceae |
Uapaca staudtii | Pax | Phyllanthaceae |
Uapaca vanhouttei | De Wild. | Phyllanthaceae |
Uvariopsis dioica | (Diels) Robyns & Ghesq. | Annonaceae |
Vepris louisii | G.C.C. Gilbert | Rutaceae |
Vitex grandifolia | Gürke | Lamiaceae |
Vitex rivularis | Gürke | Lamiaceae |
Vitex thyrsiflora | Baker | Lamiaceae |
Vitex zenkeri | Gürke | Lamiaceae |
Xylopia aethiopica | (Dunal) A. Rich. | Annonaceae |
Xylopia hypolampra | Mildbr. | Annonaceae |
Xylopia parviflora | (Guill. & Perr.) Engl. & Diels | Annonaceae |
Xylopia quintasii | Pierre ex Engl. & Diels | Annonaceae |
Xylopia rubescens | Oliv. | Annonaceae |
Zanthoxylum gilletii | (De Wild.) P.G. Waterman | Rutaceae |
Zanthoxylum heitzii | (Aubrév. & Pellegr.) P.G.Waterman | Rutaceae |
Selected species from the Dja Faunal Reserve (2). (Photos: a, b: TLP Couvreur; c, d: B Sonké)
Figure 3a.
Greenwayodendron suaveolens (Annonaceae)
Figure 3b.
Annickia affinis (Annonaceae)
Figure 3c.
Rothmannia lateriflora (Rubiaceae)
Figure 3d.
Pauridiantha floribunda (Rubiaceae)
Of the 54 families Fabaceae, Rubiaceae and Malvaceae were the most species rich (Table 2) whereas Fabaceae, Phyllantaceae and Ochnaceae were the most abundant families in terms of individuals sampled (Table 3, Fig. 4, Suppl. material 3). Finally, Tabernaemontana crassa (Apocynaceae) was the most abundant species recorded for the reserve with 633 individuals tagged (Table 4). Species diversity and abundance per family for each transect is given in Table 5.
Table 2.
Position | Family | Species richness |
---|---|---|
1 | Fabaceae | 37 |
2 | Rubiaceae | 24 |
3 | Malvaceae | 23 |
4 | Euphorbiaceae | 18 |
5 | Sapotaceae | 16 |
6 | Annonaceae | 15 |
7 | Meliaceae | 14 |
8 | Phyllanthaceae | 13 |
9 | Putranjivaceae | 11 |
10 | Clusiaceae | 9 |
Table 3.
Family | Family abundance |
---|---|
Fabaceae | 1203 |
Phyllanthaceae | 1011 |
Olacaceae | 830 |
Annonaceae | 826 |
Euphorbiaceae | 794 |
Apocynaceae | 775 |
Meliaceae | 605 |
Rubiaceae | 446 |
Burseraceae | 436 |
Malvaceae | 396 |
Figure 4.
Plant family abundance in the Dja Faunal Reserve. This table was produced from Suppl. material 3.
Table 4.
Position | Species | Species abundance |
---|---|---|
1 | Tabernaemontana crassa | 633 |
2 | Petersianthus macrocarpus | 382 |
3 | Santiria trimera | 349 |
4 | Greenwayodendron suaveolens | 332 |
5 | Uapaca guineensis | 330 |
6 | Uapaca paludosa | 260 |
7 | Strombosiopsis tetrandra | 240 |
7 | Pentaclethra macrophylla | 240 |
7 | Plagiostyles africana | 240 |
8 | Desbordesia glaucescens | 210 |
9 | Trichilia rubescens | 206 |
10 | Dichostemma glaucescens | 197 |
11 | Rinorea oblongifolia | 189 |
12 | Anonidium mannii | 181 |
13 | Strombosia pustulata | 172 |
14 | Heisteria trillesiana | 156 |
15 | Coelocaryon preussii | 152 |
16 | Carapa procera | 136 |
17 | Anthonotha macrophylla | 134 |
18 | Corynanthe pachyceras | 131 |
19 | Trichoscypha acuminata | 128 |
20 | Antidesma laciniatum | 124 |
Table 5.
Family/species | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Plot number | L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | L9 | Total |
Achariaceae | 2 | 2 | 1 | 2 | 1 | 8 | ||||
Buchnerodendron speciosum | 1 | 1 | ||||||||
Lindackeria echinata | 1 | 1 | ||||||||
Scottellia klaineana | 2 | 2 | 1 | 1 | 6 | |||||
Agavaceae | 2 | 1 | 1 | 1 | 5 | |||||
Dracaena arborea | 2 | 1 | 1 | 1 | 5 | |||||
Anacardiaceae | 61 | 60 | 43 | 42 | 26 | 32 | 32 | 22 | 21 | 339 |
Antrocaryon klaineanum | 1 | 1 | 1 | 3 | ||||||
Antrocaryon micraster | 1 | 1 | ||||||||
Lannea welwitschii | 1 | 1 | 2 | 1 | 4 | 2 | 3 | 14 | ||
Pseudospondias microcarpa | 14 | 3 | 6 | 3 | 2 | 6 | 3 | 2 | 39 | |
Sorindeia grandifolia | 19 | 29 | 16 | 13 | 5 | 4 | 7 | 3 | 96 | |
Sorindeia sp. | 6 | 4 | 6 | 4 | 4 | 6 | 1 | 11 | 4 | 46 |
Trichoscypha acuminata | 20 | 22 | 15 | 17 | 13 | 15 | 11 | 8 | 7 | 128 |
Trichoscypha arborea | 1 | 1 | 3 | 6 | 1 | 12 | ||||
Anisophylleaceae | 1 | 2 | 2 | 2 | 3 | 10 | ||||
Anopyxis klaineana | 1 | 2 | 2 | 2 | 3 | 10 | ||||
Annonaceae | 136 | 112 | 103 | 69 | 75 | 97 | 64 | 99 | 71 | 826 |
Annickia affinis | 9 | 17 | 9 | 5 | 7 | 10 | 11 | 14 | 6 | 88 |
Anonidium mannii | 53 | 22 | 19 | 3 | 21 | 14 | 9 | 13 | 27 | 181 |
Cleistopholis glauca | 1 | 4 | 1 | 5 | 11 | |||||
Cleistopholis patens | 5 | 5 | 4 | 4 | 6 | 4 | 4 | 2 | 2 | 36 |
Duguetia staudtii | 4 | 3 | 5 | 3 | 4 | 4 | 2 | 2 | 2 | 29 |
Greenwayodendron suaveolens | 46 | 37 | 42 | 28 | 22 | 45 | 27 | 55 | 30 | 332 |
Hexalobus crispiflorus | 6 | 3 | 1 | 1 | 1 | 1 | 1 | 14 | ||
Monodora myristica | 1 | 1 | ||||||||
Monodora tenuifolia | 1 | 3 | 2 | 1 | 2 | 9 | ||||
Uvariopsis dioica | 1 | 3 | 2 | 8 | 14 | |||||
Xylopia aethiopica | 2 | 2 | 3 | 2 | 3 | 2 | 14 | |||
Xylopia hypolampra | 1 | 1 | 2 | |||||||
Xylopia parviflora | 4 | 2 | 3 | 2 | 11 | |||||
Xylopia quintasii | 6 | 6 | 12 | 7 | 5 | 2 | 7 | 9 | 3 | 57 |
Xylopia rubescens | 1 | 4 | 4 | 2 | 5 | 1 | 1 | 18 | ||
Xylopia sp. | 2 | 1 | 2 | 1 | 3 | 9 | ||||
Apocynaceae | 73 | 145 | 36 | 79 | 133 | 124 | 71 | 82 | 32 | 775 |
Alstonia boonei | 5 | 5 | 1 | 4 | 10 | 7 | 5 | 6 | 2 | 45 |
Funtumia africana | 1 | 1 | ||||||||
Funtumia elastica | 2 | 5 | 2 | 1 | 16 | 25 | 6 | 5 | 2 | 64 |
Landolphia sp. | 3 | 2 | 5 | |||||||
Picralima nitida | 2 | 2 | 4 | 5 | 2 | 1 | 1 | 17 | ||
Rauvolfia caffra | 1 | 1 | 2 | |||||||
Rauvolfia vomitoria | 1 | 1 | 2 | 1 | 5 | |||||
Strophanthus sp. | 1 | 1 | ||||||||
Tabernaemontana citrifolia | 1 | 1 | ||||||||
Tabernaemontana crassa | 63 | 132 | 32 | 66 | 100 | 87 | 59 | 67 | 27 | 633 |
Tabernanthe sp. | 1 | 1 | ||||||||
Arecaceae | 10 | 2 | 17 | 38 | 1 | 25 | 93 | |||
Raphia monbuttorum | 10 | 2 | 17 | 38 | 1 | 68 | ||||
Raphia regalis | 25 | 25 | ||||||||
Asteraceae | 1 | 1 | ||||||||
Vernonia sp. | 1 | 1 | ||||||||
Bignoniaceae | 2 | 2 | 1 | 8 | 3 | 8 | 3 | 1 | 3 | 31 |
Fernandoa adolfi-friderici | 1 | 2 | 1 | 1 | 2 | 1 | 8 | |||
Markhamia lutea | 1 | 7 | 3 | 6 | 2 | 19 | ||||
Spathodea campanulata | 3 | 1 | 4 | |||||||
Boraginaceae | 1 | 1 | 2 | 1 | 2 | 2 | 9 | |||
Cordia aurantiaca | 1 | 2 | 1 | 4 | ||||||
Cordia platythyrsa | 1 | 2 | 2 | 5 | ||||||
Burseraceae | 64 | 63 | 50 | 43 | 46 | 51 | 30 | 40 | 49 | 436 |
Canarium schweinfurthii | 1 | 1 | 1 | 2 | 2 | 2 | 9 | |||
Dacryodes buettneri | 10 | 1 | 11 | |||||||
Dacryodes edulis | 17 | 6 | 2 | 4 | 10 | 14 | 2 | 1 | 4 | 60 |
Dacryodes klaineana | 1 | 1 | ||||||||
Dacryodes sp. | 1 | 4 | 1 | 6 | ||||||
Santiria trimera | 45 | 56 | 44 | 38 | 24 | 34 | 26 | 37 | 45 | 349 |
Calophyllaceae | 6 | 4 | 7 | 2 | 4 | 4 | 6 | 3 | 3 | 39 |
Mammea africana | 6 | 4 | 7 | 2 | 4 | 4 | 6 | 3 | 3 | 39 |
Cannabaceae | 69 | 28 | 13 | 10 | 11 | 35 | 24 | 9 | 16 | 215 |
Celtis adolfi-friderici | 1 | 1 | ||||||||
Celtis gomphophylla | 1 | 1 | ||||||||
Celtis tessmannii | 19 | 17 | 5 | 5 | 11 | 7 | 19 | 8 | 11 | 102 |
Celtis zenkeri | 50 | 11 | 7 | 5 | 28 | 5 | 1 | 1 | 108 | |
Trema orientalis | 3 | 3 | ||||||||
Celastraceae | 8 | 7 | 5 | 3 | 7 | 30 | ||||
Salacia sp. | 8 | 7 | 5 | 3 | 7 | 30 | ||||
Centroplacaceae | 6 | 6 | 12 | 4 | 1 | 5 | 34 | |||
Centroplacus glaucinus | 6 | 6 | 12 | 4 | 1 | 5 | 34 | |||
Chrysobalanaceae | 17 | 11 | 7 | 12 | 3 | 6 | 4 | 19 | 79 | |
Acioa sp. | 1 | 1 | 2 | |||||||
Maranthes chrysophylla | 1 | 8 | 2 | 14 | 25 | |||||
Maranthes glabra | 12 | 4 | 3 | 2 | 2 | 2 | 1 | 26 | ||
Maranthes sp. | 5 | 4 | 2 | 2 | 1 | 1 | 1 | 2 | 18 | |
Parinari excelsa | 2 | 1 | 1 | 1 | 2 | 7 | ||||
Parinari sp. | 1 | 1 | ||||||||
Clusiaceae | 22 | 20 | 38 | 16 | 8 | 5 | 19 | 19 | 15 | 162 |
Allanblackia floribunda | 13 | 5 | 6 | 8 | 6 | 1 | 8 | 2 | 10 | 59 |
Allanblackia gabonensis | 1 | 1 | ||||||||
Garcinia gnetoides | 2 | 4 | 6 | |||||||
Garcinia kola | 1 | 1 | ||||||||
Garcinia mannii | 4 | 12 | 9 | 8 | 2 | 2 | 5 | 2 | 1 | 45 |
Garcinia punctata | 1 | 1 | ||||||||
Garcinia smeathmannii | 11 | 11 | ||||||||
Garcinia sp. | 2 | 1 | 3 | |||||||
Pentadesma butyracea | 2 | 1 | 3 | |||||||
Symphonia globulifera | 4 | 1 | 10 | 2 | 4 | 8 | 3 | 32 | ||
Combretaceae | 3 | 8 | 2 | 10 | 12 | 5 | 6 | 4 | 5 | 55 |
Combretum sp. | 5 | 1 | 2 | 8 | ||||||
Pteleopsis hylodendron | 1 | 1 | 4 | 6 | 1 | 1 | 1 | 15 | ||
Strephonema pseudo-cola | 1 | 1 | ||||||||
Strephonema sp. | 1 | 3 | 4 | |||||||
Terminalia superba | 2 | 2 | 4 | 6 | 1 | 5 | 3 | 4 | 27 | |
Dichapetalaceae | 1 | 1 | ||||||||
Tapura africana | 1 | 1 | ||||||||
Dilleniaceae | 2 | 5 | 3 | 10 | ||||||
Tetracera alnifolia | 1 | 3 | 4 | |||||||
Tetracera stuhlmanniana | 1 | 5 | 6 | |||||||
Ebenaceae | 17 | 14 | 3 | 3 | 17 | 16 | 10 | 10 | 14 | 104 |
Diospyros bipindensis | 1 | 3 | 1 | 5 | ||||||
Diospyros cinnabarina | 3 | 3 | ||||||||
Diospyros conocarpa | 1 | 1 | ||||||||
Diospyros crassiflora | 1 | 3 | 2 | 7 | 13 | |||||
Diospyros hoyleana | 4 | 4 | 2 | 5 | 5 | 1 | 6 | 27 | ||
Diospyros sp. | 4 | 4 | 1 | 1 | 7 | 2 | 1 | 2 | 1 | 23 |
Diospyros suaveolens | 8 | 5 | 1 | 2 | 9 | 2 | 5 | 32 | ||
Euphorbiaceae | 32 | 82 | 80 | 84 | 100 | 29 | 133 | 139 | 81 | 760 |
Cavacoa quintasii | 17 | 17 | ||||||||
Croton oligandrus | 1 | 1 | ||||||||
Crotonogyne preussii | 1 | 1 | ||||||||
Dichostemma glaucescens | 12 | 37 | 38 | 32 | 55 | 4 | 13 | 6 | 197 | |
Discoglypremna caloneura | 4 | 2 | 5 | 4 | 3 | 3 | 1 | 22 | ||
Elaeophorbia grandifolia | 1 | 1 | ||||||||
Hymenocardia lyrata | 1 | 2 | 1 | 7 | 11 | |||||
Hymenocardia sp. | 1 | 1 | 2 | |||||||
Klaineanthus gaboniae | 5 | 6 | 1 | 7 | 11 | 3 | 11 | 13 | 57 | |
Macaranga barteri | 2 | 3 | 5 | |||||||
Macaranga occidentalis | 2 | 2 | 4 | |||||||
Macaranga sp. | 4 | 2 | 2 | 1 | 1 | 2 | 12 | |||
Macaranga spinosa | 11 | 10 | 2 | 1 | 12 | 4 | 12 | 1 | 53 | |
Maprounea membranacea | 3 | 3 | ||||||||
Maprounea sp. | 1 | 1 | ||||||||
Mareyopsis longifolia | 21 | 28 | 21 | 5 | 1 | 22 | 1 | 99 | ||
Plagiostyles africana | 1 | 2 | 1 | 4 | 86 | 103 | 43 | 240 | ||
Ricinodendron heudelotii | 3 | 1 | 4 | 2 | 2 | 3 | 15 | |||
Sapium ellipticum | 1 | 1 | 1 | 1 | 4 | |||||
Tetrorchidium didymostemon | 1 | 5 | 9 | 15 | ||||||
Fabaceae | 181 | 156 | 164 | 123 | 130 | 107 | 157 | 84 | 101 | 1203 |
Afzelia bella | 1 | 1 | ||||||||
Afzelia bipindensis | 1 | 2 | 1 | 4 | ||||||
Albizia adianthifolia | 3 | 2 | 1 | 6 | 2 | 3 | 17 | |||
Albizia ferruginea | 1 | 1 | ||||||||
Albizia glaberrima | 1 | 3 | 1 | 1 | 3 | 4 | 13 | |||
Albizia gummifera | 3 | 4 | 7 | |||||||
Albizia sp. | 5 | 1 | 1 | 1 | 8 | |||||
Albizia zygia | 1 | 1 | 1 | 1 | 4 | |||||
Amphimas ferrugineus | 2 | 2 | ||||||||
Amphimas pterocarpoides | 1 | 1 | 1 | 2 | 1 | 6 | ||||
Angylocalyx pynaertii | 8 | 6 | 13 | 10 | 3 | 9 | 13 | 1 | 12 | 75 |
Angylocalyx sp. | 1 | 1 | 1 | 3 | ||||||
Anthonotha cladantha | 7 | 13 | 18 | 1 | 39 | |||||
Anthonotha fragrans | 3 | 3 | ||||||||
Anthonotha macrophylla | 10 | 26 | 38 | 19 | 10 | 12 | 7 | 10 | 2 | 134 |
Anthonotha sp. | 1 | 1 | 2 | |||||||
Balanites wilsoniana | 1 | 1 | ||||||||
Baphia sp. | 1 | 1 | ||||||||
Calpocalyx dinklagei | 8 | 8 | 13 | 20 | 10 | 10 | 3 | 12 | 5 | 89 |
Cylicodiscus gabunensis | 3 | 5 | 1 | 1 | 5 | 1 | 2 | 2 | 20 | |
Detarium macrocarpum | 1 | 1 | 1 | 3 | 3 | 2 | 1 | 12 | ||
Dialium bipindense | 1 | 1 | ||||||||
Dialium dinklagei | 4 | 2 | 1 | 1 | 8 | |||||
Dialium guineense | 1 | 1 | 1 | 6 | 3 | 3 | 15 | |||
Dialium zenkeri | 3 | 3 | 15 | 16 | 8 | 8 | 6 | 1 | 2 | 62 |
Distemonanthus benthamianus | 15 | 4 | 2 | 1 | 13 | 7 | 42 | |||
Entada gigas | 2 | 5 | 1 | 3 | 5 | 16 | ||||
Erythrophleum suaveolens | 4 | 6 | 1 | 6 | 6 | 8 | 2 | 3 | 36 | |
Gilbertiodendron dewevrei | 52 | 1 | 53 | |||||||
Gossweilerodendron joveri | 1 | 1 | ||||||||
Hylodendron gabunense | 19 | 12 | 8 | 5 | 9 | 8 | 9 | 3 | 4 | 77 |
Hymenostegia afzelii | 1 | 1 | ||||||||
Millettia laurentii | 2 | 2 | ||||||||
Millettia sanagana | 2 | 2 | ||||||||
Millettia sp. | 1 | 2 | 1 | 4 | ||||||
Newtonia sp. | 1 | 1 | ||||||||
Oddoniodendron sp. | 1 | 1 | ||||||||
Parkia bicolor | 3 | 1 | 1 | 5 | ||||||
Pentaclethra macrophylla | 44 | 31 | 31 | 24 | 29 | 14 | 19 | 25 | 23 | 240 |
Piptadeniastrum africanum | 7 | 1 | 1 | 1 | 2 | 9 | 2 | 7 | 30 | |
Pterocarpus mildbraedii | 16 | 12 | 1 | 3 | 4 | 2 | 3 | 41 | ||
Pterocarpus soyauxii | 15 | 7 | 7 | 5 | 10 | 10 | 7 | 4 | 11 | 76 |
Tessmannia africana | 4 | 1 | 6 | 5 | 15 | 31 | ||||
Tetrapleura tetraptera | 2 | 4 | 1 | 1 | 7 | 1 | 16 | |||
Hypericaceae | 3 | 3 | ||||||||
Harungana madagascariensis | 3 | 3 | ||||||||
Irvingiaceae | 34 | 40 | 49 | 62 | 42 | 43 | 34 | 44 | 37 | 385 |
Desbordesia glaucescens | 13 | 31 | 25 | 43 | 25 | 28 | 12 | 16 | 17 | 210 |
Irvingia excelsa | 1 | 1 | 2 | |||||||
Irvingia gabonensis | 11 | 4 | 15 | 8 | 10 | 4 | 12 | 10 | 8 | 82 |
Irvingia grandifolia | 4 | 2 | 2 | 3 | 2 | 5 | 1 | 3 | 3 | 25 |
Irvingia robur | 1 | 1 | ||||||||
Irvingia sp. | 1 | 1 | ||||||||
Klainedoxa gabonensis | 3 | 2 | 6 | 8 | 5 | 6 | 5 | 13 | 7 | 55 |
Klainedoxa microphylla | 3 | 1 | 2 | 2 | 1 | 9 | ||||
Ixonanthaceae | 4 | 1 | 3 | 8 | ||||||
Oubanguia sp. | 1 | 1 | ||||||||
Phyllocosmus africanus | 1 | 1 | 2 | |||||||
Phyllocosmus sessiliflorus | 3 | 3 | ||||||||
Phyllocosmus sp. | 2 | 2 | ||||||||
Lauraceae | 4 | 5 | 3 | 3 | 3 | 6 | 5 | 2 | 6 | 37 |
Beilschmiedia sp. | 4 | 5 | 3 | 3 | 2 | 6 | 1 | 2 | 6 | 32 |
Persea americana | 1 | 4 | 5 | |||||||
Lecythidaceae | 101 | 47 | 19 | 8 | 81 | 51 | 34 | 20 | 21 | 382 |
Petersianthus macrocarpus | 101 | 47 | 19 | 8 | 81 | 51 | 34 | 20 | 21 | 382 |
Lepidobotryaceae | 15 | 21 | 12 | 5 | 4 | 5 | 7 | 13 | 2 | 84 |
Lepidobotrys staudtii | 15 | 21 | 12 | 5 | 4 | 5 | 7 | 13 | 2 | 84 |
Loganiaceae | 1 | 1 | 1 | 3 | ||||||
Strychnos sp. | 1 | 1 | 1 | 3 | ||||||
Malvaceae | 39 | 56 | 45 | 45 | 55 | 35 | 63 | 49 | 31 | 418 |
Bombax brevicuspe | 1 | 3 | 5 | 9 | ||||||
Bombax buonopozense | 1 | 1 | 2 | 2 | 6 | |||||
Ceiba pentandra | 2 | 1 | 1 | 1 | 2 | 7 | ||||
Chlamydocola chlamydantha | 1 | 4 | 2 | 2 | 2 | 1 | 1 | 13 | ||
Cola acuminata | 6 | 9 | 13 | 1 | 3 | 5 | 37 | |||
Cola altissima | 1 | 1 | ||||||||
Cola ballayi | 3 | 3 | 4 | 6 | 16 | |||||
Cola flavo-velutina | 1 | 1 | ||||||||
Cola lateritia | 4 | 5 | 3 | 1 | 11 | 6 | 6 | 2 | 38 | |
Cola sp. | 8 | 4 | 10 | 16 | 1 | 1 | 7 | 12 | 2 | 61 |
Cola verticillata | 1 | 1 | ||||||||
Desplatsia chrysochlamys | 4 | 12 | 4 | 7 | 9 | 6 | 6 | 1 | 49 | |
Desplatsia dewevrei | 3 | 3 | ||||||||
Duboscia macrocarpa | 6 | 11 | 11 | 10 | 4 | 9 | 11 | 6 | 8 | 76 |
Eribroma oblongum | 2 | 1 | 2 | 3 | 1 | 9 | ||||
Glyphaea brevis | 1 | 5 | 6 | |||||||
Grewia brunnea | 2 | 2 | ||||||||
Grewia coriacea | 2 | 2 | ||||||||
Grewia oligoneura | 1 | 2 | 3 | |||||||
Grewia sp. | 2 | 1 | 1 | 4 | 8 | |||||
Leptonichia sp. | 1 | 1 | 1 | 3 | ||||||
Nesogordonia papaverifera | 1 | 1 | 2 | |||||||
Octolobus sp. | 1 | 1 | ||||||||
Pterygota bequaertii | 3 | 1 | 3 | 7 | ||||||
Pterygota sp. | 1 | 1 | 2 | |||||||
Sterculia tragacantha | 7 | 7 | 2 | 2 | 4 | 7 | 11 | 3 | 4 | 47 |
Triplochiton scleroxylon | 1 | 3 | 4 | 8 | ||||||
Melastomataceae | 3 | 3 | ||||||||
Memecylon afzelii | 3 | 3 | ||||||||
Meliaceae | 97 | 98 | 57 | 23 | 56 | 65 | 71 | 67 | 71 | 605 |
Carapa procera | 36 | 27 | 19 | 1 | 16 | 22 | 5 | 7 | 3 | 136 |
Entandrophragma angolense | 4 | 1 | 2 | 2 | 9 | |||||
Entandrophragma candollei | 4 | 2 | 1 | 4 | 3 | 5 | 19 | |||
Entandrophragma cylindricum | 2 | 2 | 1 | 2 | 5 | 3 | 2 | 17 | ||
Entandrophragma sp. | 4 | 2 | 6 | |||||||
Guarea cedrata | 2 | 1 | 2 | 1 | 10 | 2 | 18 | 36 | ||
Guarea thompsonii | 3 | 1 | 1 | 1 | 8 | 6 | 20 | |||
Khaya ivorensis | 1 | 1 | ||||||||
Lovoa trichilioides | 7 | 10 | 6 | 2 | 1 | 4 | 4 | 2 | 36 | |
Trichilia monadelpha | 2 | 2 | 11 | 1 | 9 | 25 | ||||
Trichilia prieuriana | 2 | 1 | 3 | |||||||
Trichilia rubescens | 33 | 46 | 24 | 8 | 26 | 26 | 25 | 18 | 206 | |
Trichilia sp. | 1 | 1 | 1 | 3 | 2 | 1 | 2 | 3 | 1 | 15 |
Trichilia tessmannii | 49 | 1 | 50 | |||||||
Trichilia welwitschii | 3 | 1 | 4 | |||||||
Turraeanthus africana | 1 | 6 | 2 | 2 | 11 | 22 | ||||
Moraceae | 75 | 17 | 7 | 9 | 10 | 3 | 21 | 4 | 30 | 176 |
Ficus exasperata | 2 | 7 | 2 | 11 | ||||||
Ficus mucuso | 4 | 1 | 6 | 11 | ||||||
Ficus sur | 1 | 1 | ||||||||
Milicia excelsa | 1 | 1 | 2 | 4 | 2 | 2 | 12 | |||
Streblus usambarensis | 6 | 7 | 15 | 28 | ||||||
Treculia africana | 7 | 5 | 4 | 2 | 2 | 3 | 2 | 25 | ||
Trilepisium madagascariense | 65 | 12 | 2 | 1 | 6 | 2 | 88 | |||
Myristicaceae | 65 | 19 | 19 | 9 | 41 | 13 | 65 | 29 | 48 | 308 |
Coelocaryon botryoides | 1 | 1 | ||||||||
Coelocaryon preussii | 38 | 5 | 7 | 2 | 17 | 5 | 39 | 11 | 28 | 152 |
Pycnanthus angolensis | 8 | 6 | 3 | 3 | 9 | 1 | 9 | 2 | 8 | 49 |
Staudtia kamerunensis | 18 | 8 | 9 | 4 | 15 | 7 | 17 | 16 | 12 | 106 |
Myrsinaceae | 1 | 1 | ||||||||
Embelia sp. | 1 | 1 | ||||||||
Myrtaceae | 5 | 6 | 4 | 9 | 2 | 4 | 3 | 7 | 8 | 48 |
Eugenia sp. | 4 | 2 | 3 | 3 | 1 | 6 | 4 | 23 | ||
Psidium guajava | 1 | 1 | ||||||||
Syzygium guineense | 1 | 1 | ||||||||
Syzygium rowlandii | 4 | 1 | 6 | 2 | 2 | 2 | 1 | 4 | 22 | |
Syzygium sp. | 1 | 1 | ||||||||
Ochnaceae | 4 | 1 | 4 | 6 | 1 | 5 | 2 | 3 | 26 | |
Ochna calodendron | 2 | 2 | ||||||||
Rhabdophyllum bracteolatum | 4 | 1 | 4 | 6 | 1 | 3 | 2 | 3 | 24 | |
Olacaceae | 95 | 82 | 108 | 82 | 104 | 80 | 73 | 106 | 100 | 830 |
Heisteria trillesiana | 41 | 16 | 22 | 7 | 51 | 16 | 2 | 1 | 156 | |
Heisteria zimmereri | 2 | 4 | 1 | 26 | 24 | 35 | 92 | |||
Ongokea gore | 5 | 1 | 4 | 2 | 4 | 1 | 2 | 2 | 1 | 22 |
Strombosia grandifolia | 1 | 1 | 2 | 1 | 2 | 9 | 4 | 9 | 29 | |
Strombosia pustulata | 13 | 7 | 30 | 27 | 19 | 25 | 7 | 18 | 26 | 172 |
Strombosia scheffleri | 4 | 16 | 21 | 9 | 1 | 14 | 5 | 12 | 1 | 83 |
Strombosia sp. | 1 | 1 | 2 | |||||||
Strombosia zenkeri | 5 | 27 | 2 | 34 | ||||||
Strombosiopsis tetrandra | 29 | 36 | 24 | 35 | 2 | 19 | 22 | 46 | 27 | 240 |
Oleaceae | 1 | 1 | ||||||||
Schrebera arborea | 1 | 1 | ||||||||
Pandaceae | 9 | 10 | 6 | 12 | 6 | 13 | 8 | 8 | 14 | 86 |
Microdesmis puberula | 1 | 1 | ||||||||
Microdesmis sp. | 4 | 5 | 2 | 3 | 4 | 1 | 7 | 26 | ||
Microdesmis zenkeri | 1 | 1 | ||||||||
Panda oleosa | 5 | 5 | 3 | 11 | 3 | 9 | 7 | 8 | 7 | 58 |
Passifloraceae | 4 | 4 | 1 | 9 | 1 | 19 | ||||
Barteria nigritana subsp. fistulosa | 4 | 4 | 1 | 9 | 1 | 19 | ||||
Phyllanthaceae | 127 | 170 | 90 | 77 | 124 | 68 | 107 | 171 | 77 | 1011 |
Antidesma laciniatum | 8 | 22 | 18 | 31 | 4 | 4 | 15 | 16 | 6 | 124 |
Antidesma membranaceum | 3 | 5 | 2 | 6 | 2 | 9 | 4 | 4 | 35 | |
Antidesma sp. | 2 | 1 | 4 | 7 | ||||||
Antidesma venosum | 2 | 1 | 11 | 1 | 15 | |||||
Bridelia grandis | 2 | 1 | 9 | 4 | 16 | |||||
Bridelia micrantha | 9 | 2 | 2 | 1 | 1 | 1 | 16 | |||
Keayodendron bridelioides | 5 | 4 | 3 | 5 | 4 | 4 | 1 | 7 | 2 | 35 |
Maesobotrya klaineana | 6 | 11 | 3 | 4 | 5 | 4 | 3 | 8 | 4 | 48 |
Maesobotrya sp. | 3 | 3 | ||||||||
Margaritaria discoidea | 1 | 1 | 1 | 3 | 13 | 1 | 20 | |||
Uapaca acuminata | 16 | 21 | 2 | 19 | 3 | 7 | 68 | |||
Uapaca guineensis | 18 | 72 | 37 | 24 | 12 | 22 | 31 | 87 | 27 | 330 |
Uapaca paludosa | 60 | 30 | 22 | 4 | 74 | 25 | 13 | 12 | 20 | 260 |
Uapaca staudtii | 1 | 3 | 10 | 6 | 20 | |||||
Uapaca vanhouttei | 1 | 9 | 1 | 3 | 14 | |||||
Putranjivaceae | 35 | 17 | 84 | 61 | 13 | 4 | 30 | 46 | 30 | 320 |
Drypetes aframensis | 1 | 7 | 2 | 10 | ||||||
Drypetes africana | 1 | 1 | ||||||||
Drypetes afzelii | 1 | 1 | ||||||||
Drypetes capillipes | 5 | 5 | ||||||||
Drypetes chevalieri | 6 | 1 | 10 | 5 | 22 | |||||
Drypetes gossweileri | 2 | 2 | 4 | |||||||
Drypetes klainei | 5 | 5 | ||||||||
Drypetes laciniata | 1 | 1 | 1 | 1 | 3 | 7 | ||||
Drypetes molunduana | 1 | 1 | ||||||||
Drypetes paxii | 1 | 1 | ||||||||
Drypetes sp. | 22 | 14 | 66 | 41 | 12 | 2 | 27 | 40 | 20 | 244 |
Drypetes staudtii | 4 | 1 | 5 | 6 | 1 | 1 | 1 | 19 | ||
Rhamnaceae | 1 | 7 | 17 | 13 | 4 | 3 | 2 | 3 | 5 | 55 |
Lasiodiscus mannii | 1 | 4 | 16 | 13 | 2 | 3 | 3 | 4 | 46 | |
Maesopsis eminii | 3 | 1 | 2 | 2 | 1 | 9 | ||||
Rubiaceae | 34 | 29 | 64 | 61 | 30 | 40 | 59 | 57 | 72 | 446 |
Aidia micrantha | 17 | 12 | 52 | 81 | ||||||
Aoranthe cladantha | 3 | 4 | 3 | 4 | 1 | 1 | 16 | |||
Aulacocalyx jasminiflora | 2 | 1 | 3 | |||||||
Belonophora coriacea | 2 | 2 | ||||||||
Bertiera racemosa | 1 | 1 | ||||||||
Brenania brieyi | 3 | 1 | 2 | 2 | 2 | 3 | 1 | 14 | ||
Canthium sp. | 2 | 4 | 1 | 4 | 1 | 2 | 2 | 16 | ||
Corynanthe pachyceras | 6 | 8 | 32 | 23 | 7 | 5 | 21 | 26 | 3 | 131 |
Cuviera cuvieroides | 1 | 2 | 6 | 7 | 1 | 9 | 26 | |||
Cuviera sp. | 1 | 1 | ||||||||
Heinsia crinita | 1 | 2 | 2 | 4 | 9 | |||||
Leptactina involucrata | 1 | 1 | ||||||||
Massularia acuminata | 1 | 1 | 1 | 1 | 4 | |||||
Mitragyna stipulosa | 2 | 5 | 2 | 1 | 1 | 4 | 15 | |||
Nauclea diderrichii | 2 | 2 | 1 | 1 | 6 | |||||
Nauclea pobeguinii | 1 | 1 | 1 | 3 | ||||||
Oxyanthus speciosus | 2 | 1 | 3 | |||||||
Pauridiantha callicarpoides | 1 | 1 | ||||||||
Pauridiantha efferata | 1 | 5 | 1 | 2 | 2 | 11 | ||||
Pauridiantha floribunda | 3 | 1 | 5 | 1 | 1 | 11 | ||||
Pausinystalia macroceras | 1 | 1 | ||||||||
Pavetta sp. | 1 | 1 | ||||||||
Rothmannia lateriflora | 5 | 3 | 3 | 2 | 6 | 1 | 2 | 22 | ||
Rothmannia lujae | 4 | 5 | 3 | 2 | 3 | 6 | 7 | 5 | 3 | 38 |
Tricalysia anomala | 1 | 3 | 2 | 6 | ||||||
Tricalysia crepiniana | 1 | 1 | 2 | |||||||
Tricalysia discolor | 1 | 3 | 6 | 3 | 5 | 1 | 1 | 20 | ||
Tricalysia sp. | 1 | 1 | ||||||||
Rutaceae | 7 | 4 | 4 | 6 | 6 | 6 | 10 | 2 | 3 | 48 |
Clausena anisata | 1 | 1 | ||||||||
Teclea afzelii | 1 | 1 | 2 | |||||||
Vepris louisii | 2 | 2 | 4 | |||||||
Zanthoxylum gilletii | 7 | 3 | 4 | 3 | 6 | 5 | 3 | 2 | 3 | 36 |
Zanthoxylum heitzii | 1 | 4 | 5 | |||||||
Salicaceae | 23 | 22 | 19 | 22 | 21 | 19 | 4 | 5 | 8 | 143 |
Casearia barteri | 11 | 6 | 16 | 2 | 4 | 2 | 41 | |||
Homalium discophylum | 4 | 7 | 9 | 4 | 4 | 3 | 4 | 35 | ||
Homalium le-testui | 1 | 1 | ||||||||
Homalium sp. | 2 | 1 | 1 | 2 | 6 | |||||
Oncoba echinata | 3 | 1 | 4 | |||||||
Oncoba gilgiana | 1 | 1 | ||||||||
Oncoba glauca | 2 | 6 | 1 | 8 | 12 | 12 | 1 | 5 | 47 | |
Oncoba sp. | 1 | 2 | 3 | |||||||
Oncoba welwitschii | 1 | 1 | ||||||||
Ophiobotrys sp. | 2 | 2 | ||||||||
Ophiobotrys zenkeri | 2 | 2 | ||||||||
Sapindaceae | 33 | 34 | 23 | 67 | 14 | 35 | 34 | 21 | 9 | 270 |
Allophylus africanus | 4 | 4 | ||||||||
Blighia sapida | 18 | 13 | 8 | 8 | 6 | 19 | 2 | 5 | 2 | 81 |
Blighia sp. | 1 | 1 | ||||||||
Blighia welwitschii | 3 | 11 | 12 | 1 | 9 | 6 | 5 | 47 | ||
Chytranthus atroviolaceus | 1 | 1 | ||||||||
Chytranthus macrobotrys | 1 | 1 | ||||||||
Chytranthus sp. | 6 | 1 | 1 | 8 | 3 | 5 | 7 | 1 | 32 | |
Eriocoelum macrocarpum | 4 | 8 | 8 | 2 | 1 | 1 | 24 | |||
Lecaniodiscus cupanioides | 2 | 1 | 5 | 2 | 9 | 7 | 1 | 27 | ||
Pancovia pedicellaris | 6 | 31 | 5 | 7 | 3 | 52 | ||||
Sapotaceae | 26 | 17 | 43 | 22 | 7 | 12 | 16 | 5 | 17 | 165 |
Afrosersalisia sp. | 3 | 1 | 4 | |||||||
Autranella congolensis | 1 | 1 | ||||||||
Baillonella toxisperma | 3 | 2 | 1 | 1 | 1 | 8 | ||||
Chrysophyllum africanum | 1 | 2 | 3 | 1 | 3 | 10 | ||||
Chrysophyllum boukokoense | 1 | 1 | 1 | 1 | 1 | 5 | ||||
Chrysophyllum lacourtianum | 9 | 7 | 1 | 2 | 2 | 9 | 3 | 1 | 34 | |
Chrysophyllum pruniforme | 1 | 2 | 1 | 1 | 5 | |||||
Chrysophyllum sp. | 1 | 1 | ||||||||
Letestua sp. | 1 | 1 | ||||||||
Manilkara letouzei | 3 | 1 | 5 | 7 | 4 | 1 | 21 | |||
Manilkara obovata | 2 | 2 | ||||||||
Manilkara sp. | 1 | 1 | 2 | |||||||
Omphalocarpum elatum | 1 | 1 | 2 | |||||||
Omphalocarpum lecomteanum | 2 | 2 | ||||||||
Pouteria altissima | 1 | 1 | 1 | 1 | 2 | 6 | ||||
Pouteria pierrei | 1 | 1 | ||||||||
Pouteria sp. | 1 | 1 | ||||||||
Synsepalum brevipes | 1 | 3 | 4 | |||||||
Synsepalum dulcificum | 23 | 23 | ||||||||
Synsepalum longecuneatum | 2 | 3 | 3 | 3 | 2 | 1 | 14 | |||
Tridesmostemon omphalocarpoides | 2 | 1 | 3 | 4 | 1 | 1 | 6 | 18 | ||
Simaroubaceae | 8 | 2 | 1 | 1 | 2 | 3 | 6 | 5 | 28 | |
Odyendyea gabonensis | 8 | 2 | 1 | 1 | 2 | 2 | 6 | 5 | 27 | |
Quassia undulata | 1 | 1 | ||||||||
Urticaceae | 17 | 14 | 1 | 5 | 12 | 6 | 45 | 2 | 59 | 161 |
Musanga cecropioides | 12 | 2 | 7 | 1 | 21 | 57 | 100 | |||
Myrianthus arboreus | 5 | 14 | 1 | 3 | 5 | 5 | 24 | 2 | 2 | 61 |
Verbenaceae | 3 | 5 | 1 | 4 | 1 | 6 | 2 | 3 | 25 | |
Vitex grandifolia | 1 | 1 | ||||||||
Vitex rivularis | 2 | 5 | 3 | 1 | 11 | |||||
Vitex sp. | 1 | 1 | 2 | 2 | 6 | |||||
Vitex thyrsiflora | 1 | 1 | ||||||||
Vitex zenkeri | 5 | 1 | 6 | |||||||
Violaceae | 26 | 16 | 18 | 13 | 3 | 11 | 30 | 50 | 28 | 195 |
Rinorea longifolia | 1 | 1 | ||||||||
Rinorea oblongifolia | 23 | 15 | 18 | 12 | 3 | 11 | 30 | 49 | 28 | 189 |
Rinorea spongiocarpa | 1 | 1 | ||||||||
Rinorea subsessilis | 1 | 1 | 2 | |||||||
Rinorea welwitschii | 2 | 2 | ||||||||
Vochysiaceae | 2 | 4 | 18 | 1 | 3 | 1 | 2 | 31 | ||
Erismadelphus exsul | 2 | 4 | 18 | 1 | 3 | 1 | 2 | 31 | ||
Total | 1579 | 1472 | 1299 | 1147 | 1238 | 1100 | 1311 | 1245 | 1155 | 11546 |
Traits coverage
The only trait measured and published in this dataset is the diameter at breast height for each individual found in Suppl. material 1.
Temporal coverage
Data range: 1993 8 01 – 1995 8 31.
Usage rights
Use license
Creative Commons CCZero
IP rights notes
This dataset can be freely used provided it is cited
Data resources
Data package title
Djatrees: Trees of the Dja Faunal Reserve
Resource link
Number of data sets
1
Data set 1.
Data set name
Djatrees
Data format
excel sheet
Number of columns
4
Description
List of all individuals (including sp.) per transect collected in the nine transects.
Data set 1.
Column label | Column description |
---|---|
Species_name | Name of the identified species |
Family_name | Plant family for the species follwing APG III |
Transect_number | Transect number |
Diameter | Diameter at breast hight (in cm) |
Supplementary Material
Data type: List of individuals collected in each transcet in the Dja Faunal Reserve
Brief description: This is the raw dataset with indication of each individual collected as well as its diameter. This dataset is also availible at https://sites.google.com/site/tlpcouvreur/home/ressources.
File: oo_5683.xls
Data type: excel sheet
File: oo_5684.xls
Data type: excel sheet
Brief description: This sheet provides the number of individuals per family for all the species collected in the Dja Faunal Reserve. First coloum: Family; second coloum: number of individuals. this table was used to generate figure 2 of the article.
File: oo_5682.xls
Author contributions
BS collected the data; BS & TC analyzed and curated the data; BS & TC wrote the paper. The authors wish to thank Vincent Droissart, Gretchen Walters and Lyubomir Penev for comments and improvements to an earlier draft.
References
- APGIII An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II. http://doi.wiley.com/10.1046/j.1095-8339.2003.t01-1-00158.x. Botanical Journal of the Linnean Society. 2003;141(4):399–436. doi: 10.1046/j.1095-8339.2003.t01-1-00158.x. [DOI] [Google Scholar]
- Baker Timothy R., Phillips Oliver L., Malhi Yadvinder, Almeida Samuel, Arroyo Luzmila, Fiore Anthony Di, Erwin Terry, Killeen Timothy J., Laurance Susan G., Laurance William F., Lewis Simon L., Lloyd Jon, Monteagudo Abel, Neill David A., Patino Sandra, Pitman Nigel C. A., Silva J. Natalino M., Martinez Rodolfo Vasquez. Variation in wood density determines spatial patterns in Amazonian forest biomass. http://www.blackwell-synergy.com/links/doi/10.1111%2Fj.1365-2486.2004.00751.x. Global Change Biology. 2004;10(5):545–562. doi: 10.1111/j.1365-2486.2004.00751.x. [DOI] [Google Scholar]
- Cable S, Cheek M. The plants of Mt Cameroon: a conservation checklist. Royal Botanic Gardens; Kew: 1998. 198 [Google Scholar]
- Campbell DG, Hammond HD. Floristic inventory of tropical countries: the status of plant systematics, collections, and vegetation, plus recommendation for the future. New York Botanical Garden; New York: 1989. 545 [Google Scholar]
- Cheek Martin. Mussaenda epiphytica sp. nov. (Rubiaceae), an epiphytic shrub from cloud forest of the Bakossi Mts, western Cameroon. http://doi.wiley.com/10.1111/j.1756-1051.2009.00576.x. Nordic Journal of Botany. 2009;27(6):456–459. doi: 10.1111/j.1756-1051.2009.00576.x. [DOI] [Google Scholar]
- Cheek M, Pollard BJ, Gardens TRB. The plants of Kupe, Mwanenguba and the Bakossi mountains, Cameroon. Royal Botanic Gardens; Kew: 2004. 508 [Google Scholar]
- Droissart Vincent, Hardy Olivier J., Sonké Bonaventure, Dahdouh-Guebas Farid, Stévart Tariq. Subsampling Herbarium Collections to Assess Geographic Diversity Gradients: A Case Study with Endemic Orchidaceae and Rubiaceae in Cameroon. http://doi.wiley.com/10.1111/j.1744-7429.2011.00777.x. Biotropica. 2012;44(1):44–52. doi: 10.1111/j.1744-7429.2011.00777.x. [DOI] [Google Scholar]
- Droissart Vincent, Sonké Bonaventure, Nguembou K. C;, Djuikouo K. M-N, Parmentier Ingrid, Stévart Tariq. Synopsis of the Genus Chamaeangis (Orchidaceae), Including Two New Taxa. http://openurl.ingenta.com/content/xref?genre=article&issn=0363-6445&volume=34&issue=2&spage=285. Systematic Botany. 2009;34(2):285–296. doi: 10.1600/036364409788606361. [DOI] [Google Scholar]
- Dupain J., Guislain P., Nguenang G. M., Vleeschouwer K. De, Elsacker L. Van. High chimpanzee and gorilla densities in a non-protected area on the northern periphery of the Dja Faunal Reserve, Cameroon. http://www.journals.cambridge.org/abstract_S0030605304000365. Oryx. 2004;38(2):209–216. doi: 10.1017/S0030605304000365. [DOI] [Google Scholar]
- Hardy Olivier J, Sonké Bonaventure. Spatial pattern analysis of tree species distribution in a tropical rain forest of Cameroon: assessing the role of limited dispersal and niche differentiation. http://linkinghub.elsevier.com/retrieve/pii/S0378112704003263. Forest Ecology and Management. 2004;197(1):191–202. doi: 10.1016/j.foreco.2004.05.014. [DOI] [Google Scholar]
- Kenfack David, Thomas Duncan W., Chuyong George, Condit Richard. Rarity and abundance in a diverse African forest. http://link.springer.com/10.1007/s10531-006-9065-2. Biodiversity and Conservation. 2007;16(7):2045–2074. doi: 10.1007/s10531-006-9065-2. [DOI] [Google Scholar]
- Lachenaud Olivier, Séné Olivier. Un nouveau Psychotria (Rubiaceae) rhéophyte du sud Cameroun. http://www.ingentaconnect.com/content/botbel/plecevo/2012/00000145/00000003/art00013. Plant Ecology and Evolution. 2012;145(3):423–427. doi: 10.5091/plecevo.2012.714. [DOI] [Google Scholar]
- Lachenaud Olivier, Droissart Vincent, Dessein Steven, Stévart Tariq, Simo Murielle, Lemaire Benny, Taedoumg Hermann, Sonké Bonaventure. New records for the flora of Cameroon, including a new species of Psychotria (Rubiaceae) and range extensions for some rare species. http://www.ingentaconnect.com/content/botbel/plecevo/2013/00000146/00000001/art00010. Plant Ecology and Evolution. 2013;146(1):121–133. doi: 10.5091/plecevo.2013.632. [DOI] [Google Scholar]
- Letouzey René. Etude phytogéographique du Cameroun. P. Lechevalier; Paris, France: 1968. 511. French. [Google Scholar]
- Letouzey R. Notice de la carte phytogéographique du Cameroun au 1: 500'000. Institut de la Carte Internationale de la Végétation; Toulouse: 1985. 240 [Google Scholar]
- Onana Jean-Michel. The Vascular Plants of Cameroon: A Taxonomic Checklist with IUCN Assessments. Ministry of Scientific Research and Innovation; Yaoundé, Cameroun: 2011. 194 [Google Scholar]
- Parmentier INGRID, Malhi YADVINDER, Senterre BRUNO, Whittaker ROBERT J., Alonso ALFONSO, Balinga MICHAEL P. B., Bakayoko ADAMA, Bongers FRANS, Chatelain CYRILLE, Comiskey JAMES A., Cortay RENAUD, Kamdem MARIE-NOËL Djuikouo, Doucet JEAN-LOUIS, Gautier LAURENT, Hawthorne WILLIAM D., Issembé YVES A., Kouamé FRANÇOIS N., Kouka LAZARE A., Leal MIGUEL E., Lejoly JEAN, Lewis SIMON L., Nusbaumer LOUIS, Parren MARC P. E., Peh KELVIN S. - H., Phillips OLIVER L., Sheil DOUGLAS, Sonké BONAVENTURE, Sosef MARC S. M., Sunderland TERRY C. H., Stropp JULIANA, Steege HANS Ter, Swaine MIKE D., Tchouto M. G. P., Gemerden BAREND S. van, Valkenburg JOHAN L. C. H. van, Wöll HANNSJÖRG. The odd man out? Might climate explain the lower tree ?-diversity of African rain forests relative to Amazonian rain forests? http://www.blackwell-synergy.com/doi/abs/10.1111/j.1365-2745.2007.01273.x. Journal of Ecology. 2007;95(5):1058–1071. doi: 10.1111/j.1365-2745.2007.01273.x. [DOI] [Google Scholar]
- Sonké B. Etudes floristiques et structurales des forêts de la Réserve du Dja (Cameroun) Université Libre de Bruxelles; Bruxelles: 1998. 267 [Google Scholar]
- Sonké B. Forêts de la Réserve du Dja (Cameroun): Etudes floristiques et structurales. Vol. 32. Scripta botanica Belgica; Meise: 2004. 144 [Google Scholar]
- Sonké Bonaventure, Simo Murielle, Dessein Steven. Synopsis of the genus Mitriostigma (Rubiaceae) with a new monocaulous species from south Cameroon. http://doi.wiley.com/10.1111/j.1756-1051.2009.00415.x. Nordic Journal of Botany. 2009;27(4):305–312. doi: 10.1111/j.1756-1051.2009.00415.x. [DOI] [Google Scholar]
- Tchouto M. G. P., Boer W. F., Wilde J. J. F. E., Maesen L. J. G. Diversity patterns in the flora of the Campo-Ma’an rain forest, Cameroon: do tree species tell it all? Forest Diversity and Management. 2006;2:293–314. doi: 10.1007/978-1-4020-5208-8_16. [DOI] [Google Scholar]
- Valencia Renato, Balslev Henrik, Paz-Y-Miño-C Guillermo. High tree alpha-diversity in Amazonian Ecuador. http://link.springer.com/10.1007/BF00115330. Biodiversity and Conservation. 1994;3(1):21–28. doi: 10.1007/BF00115330. [DOI] [Google Scholar]
- Valkenburg J. van,, Ketner P., & Wilks C. A floristic inventory and preliminary vegetation classification of the mixed semi-evergreen rain forest in the Minkébé region, North East Gabon. Adansonia. 1998;20:139–162. [Google Scholar]
- White F. The Guineo-Congolian region and its relationships to other phytochoria. Bulletin du Jardin botanique national de Belgique. 1979;49:11–55. [Google Scholar]
Associated Data
This section collects any data citations, data availability statements, or supplementary materials included in this article.
Supplementary Materials
Data type: List of individuals collected in each transcet in the Dja Faunal Reserve
Brief description: This is the raw dataset with indication of each individual collected as well as its diameter. This dataset is also availible at https://sites.google.com/site/tlpcouvreur/home/ressources.
File: oo_5683.xls
Data type: excel sheet
File: oo_5684.xls
Data type: excel sheet
Brief description: This sheet provides the number of individuals per family for all the species collected in the Dja Faunal Reserve. First coloum: Family; second coloum: number of individuals. this table was used to generate figure 2 of the article.
File: oo_5682.xls