Body size and latitudinal gradients in regional diversity of New World birds

Cardillo, M (2002) Body size and latitudinal gradients in regional diversity of New World birds. Global Ecology And Biogeography, 11 1: 59-65. doi:10.1046/j.1466-822X.2001.00265.x


Author Cardillo, M
Title Body size and latitudinal gradients in regional diversity of New World birds
Journal name Global Ecology And Biogeography   Check publisher's open access policy
ISSN 0960-7447
Publication date 2002
Sub-type Article (original research)
DOI 10.1046/j.1466-822X.2001.00265.x
Volume 11
Issue 1
Start page 59
End page 65
Total pages 7
Place of publication Oxford, England
Publisher Blackwell Science Ltd
Collection year 2002
Language eng
Subject C1
270708 Conservation and Biodiversity
779903 Living resources (flora and fauna)
Abstract Axe latitudinal gradients in regional diversity random or biased with respect to body size? Using data for the New World avifauna, I show that the slope of the increase in regional species richness from the Arctic to the equator is not independent of body size. The increase is steepest among small and medium-sized species, and shallowest among the largest species. This is reflected in latitudinal variation in the shape of frequency distributions of body sizes in regional subsets of the New World avifauna. Because species are added disproportionately in small and medium size classes towards low latitudes, distributions become less widely spread along the body size axis than expected from the number of species. These patterns suggest an interaction between the effects of latitude and body size on species richness, implying that mechanisms which vary with both latitude and body size may be important determinants of high tropical diversity in New World birds.
Keyword Ecology
Geography, Physical
Beta-diversity
Birds
Body Size Distributions
Latitudal Gradients
Macroecology
New World Avifauna
Species Richness
Spatial Patterns
Evolution
Range
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Agriculture and Food Sciences
 
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Created: Tue, 14 Aug 2007, 17:11:29 EST