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Science 31 August 2001:
Vol. 293. no. 5535, pp. 1591 - 1592
DOI: 10.1126/science.293.5535.1591

Science Supplemental Material--Balmford et al.
Full Text People and Biodiversity in Africa
Michael A. Huston;, Andrew Balmford, Joslin Moore, Thomas Brooks, Neil Burgess, Louis A. Hansen, Jon C. Lovett, Si Tokumine, Paul Williams, F. I. Woodward, and Carsten Rahbek

Supplementary Material

Supplemental Table 1. Relations between species richness, human population density and net primary productivity (NPP) across 1957 1° grid squares of sub-Saharan Africa, for 10 functional groups. Trophic levels: 1 = herbivore; 2 = carnivore. Results for regressions between species richness and NPP are given separately for NPP and NPP2 terms, except those with very low explanatory power (r2 < 0.005); in all cases, species richness peaks at intermediate or high NPP values, with the former given in the final column.
Functional groupTrophic levelTaxa includedNo. spp.Correlation between species richness and human densityRegression of species richness on NPP (in t C ha-1 year-1)
rs corrNPP
(coefficient, r2)		NPP2
(coefficient, r2)		NPP at max.
Avian frugivores 1Bucerotidae, Psittacidae, Musophagidae, Columba 760.481.53, 0.41-0.067, 0.0511.37
Nectarivores 1Nectariniidae770.451.03, 0.67NS-
Aerial mammalian frugivores 1Pteropodidae240.490.53, 0.55NS-
Large herbivores 1Artiodactyla, Perissodactyla920.293.39, 0.24-0.21, 0.277.99
Waterbirds 1.5Anseriformes, Rallidae, Charadriides, Ciconiides2140.6115.82, 0.19-1.01, 0.277.80
Aerial avian insectivores 2Apodidae, Hirundinidae660.573.11, 0.30-0.18, 0.218.50
Woodpeckers2Picidae 310.450.97, 0.57-0.040, 0.0611.99
Large carnivores 2Carnivora, Strigidae, Tytonidae, Accipitridae, Sagittariidae, Falconidae1830.5012.32, 0.14-0.84, 0.447.29
Terrestrial mammalian insectivores 2Insectivora1560.380.70, 0.04-0.046, 0.087.59
Aerial mammalian insectivores 2all other Chiroptera1540.505.31, 0.47-0.28, 0.179.32

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Science. ISSN 0036-8075 (print), 1095-9203 (online)