Aim Our aim is to investigate the relationship between body size and geographical range in Neotropical marsupials, considering the possible effects of latitude and phylogeny.
Location Neotropical region.
Methods Phylogenetic generalized least-squares regression method (PGLS) is used to investigate the relationship between body size, geographical range, and latitude considering the phylogenetic relationship between species. Data for 22 species were compiled from the literature.
Results The scattergram of body size vs. geographical range was triangular in shape. Body size and geographical range were positively correlated throughout the phylogeny. Latitude was not important to this relationship.
Conclusions The polygonal relationship between geographical range and body size seems to be moulded by ecological and geographical constraints rather than by a common association with latitude.
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