Table 1.
Occurrence (abundance and species) of epiphytes with crassulacean acid metabolism (CAM) on five emergent tree species of varying phenology on Barro Colorado Island, Panama. Of each tree species, five individuals were studied, except Brosimum alicastrum with only four individuals. The ‘Total’ column gives the number of all individuals and species, respectively, across all 24 studied trees (or crowns, respectively) and the proportion of individuals/species with CAM. Percentage data for the individual tree species are given as the mean ± s.d. Data are from Einzmann et al. (2015). Barro Colorado Island is located in the Panamanian lowlands and experiences a pronounced 4-month dry season and ~2700 mm yr−1 rainfall
| Host tree species | ||||||
|---|---|---|---|---|---|---|
| Epiphyte | Total | Anacardium excelsum | Brosimum alicastrum | Ceiba pentandra | Pseudobombax septenatum | Cavanillesia platanifolia |
| Individuals | 25 592 | 10 963 | 3432 | 8826 | 2296 | 75 |
| Species | 87 | 65 | 49 | 50 | 20 | 7 |
| CAM individuals (%) | 4.9 | 1.2 ± 1.1 | 9.3 ± 6.4 | 8.1 ± 4.6 | 15.3 ± 19.7 | 24.6 ± 33.9 |
| CAM species (%) | 16 | 7.1 ± 5.5 | 17.0 ± 10.0 | 21.3 ± 9.7 | 21.4 ± 8.0 | 16.7 ± 23.6 |
| Crown individuals | 24 420 | 10 458 | 2755 | 8290 | 1763 | 14 |
| Crown species | 79 | 60 | 43 | 47 | 7 | 7 |
| Crown CAM individuals (%) | 4.6 | 1.2 ± 1.1 | 8.3 ± 8.1 | 8.0 ± 5.3 | 15.7 ± 20.5 | 16.7 ± 33.3 |
| Crown CAM species (%) | 15.2 | 6.6 ± 5.5 | 18.5 ± 15.7 | 22.6 ± 12.0 | 31.3 ± 6.4 | 8.3 ± 16.7 |