Geographic range size and determinants of avian species richness
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Geographic range size and determinants of avian species richness. / Jetz, Walter; Rahbek, Carsten.
In: Science, Vol. 297, No. 5586, 2002, p. 1548-51.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Geographic range size and determinants of avian species richness
AU - Jetz, Walter
AU - Rahbek, Carsten
N1 - Keywords: Africa South of the Sahara; Animals; Birds; Climate; Ecosystem; Homing Behavior; Models, Biological; Regression Analysis
PY - 2002
Y1 - 2002
N2 - Geographic patterns in species richness are mainly based on wide-ranging species because their larger number of distribution records has a disproportionate contribution to the species richness counts. Here we demonstrate how this effect strongly influences our understanding of what determines species richness. Using both conventional and spatial regression models, we show that for sub-Saharan African birds, the apparent role of productivity diminishes with decreasing range size, whereas the significance of topographic heterogeneity increases. The relative importance of geometric constraints from the continental edge is moderate. Our findings highlight the failure of traditional species richness models to account for narrow-ranging species that frequently are also threatened.
AB - Geographic patterns in species richness are mainly based on wide-ranging species because their larger number of distribution records has a disproportionate contribution to the species richness counts. Here we demonstrate how this effect strongly influences our understanding of what determines species richness. Using both conventional and spatial regression models, we show that for sub-Saharan African birds, the apparent role of productivity diminishes with decreasing range size, whereas the significance of topographic heterogeneity increases. The relative importance of geometric constraints from the continental edge is moderate. Our findings highlight the failure of traditional species richness models to account for narrow-ranging species that frequently are also threatened.
U2 - 10.1126/science.1072779
DO - 10.1126/science.1072779
M3 - Journal article
C2 - 12202829
VL - 297
SP - 1548
EP - 1551
JO - Science
JF - Science
SN - 0036-8075
IS - 5586
ER -
ID: 9615275