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. 2005 Sep 6;2(1):51–54. doi: 10.1098/rsbl.2005.0384

Figure 1.

Figure 1

(a) Mean (±95% CI) and coefficient of variation biomass of P. marioni larvae in seven types of habitat on Marion Island (Bleph, Blepharidophyllum densifolium mire; Sanionia, Sanionia uncinata mire; Crassula, Crassula moschata herbfield; Poa, Poa cookii tussock grassland; Cotula, Cotula plumosa herbfield; old nest, old abandoned albatross nests; new nest, newly abandoned nests). Confidence intervals for Cotula are very large, only lower bar shown. Caterpillar biomass in newly abandoned nests is significantly greater than biomass in all other habitats (χ2=25.4, p<0.00004) except for Cotula (χ2=2.5, p>0.47). (b) Comparison of mean+s.e.m. nutrients of new (abandoned in past 6 weeks) and old (previous year) albatross nests, and all other habitats on the island (no data for C). Total N and C measured as %, other nutrients measured in g kg−1. Total P is significantly lower in nests than other habitats (F2,17=13.93, p<0.003), but other nutrients do not differ between habitats (p>0.05).