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Is the relationship between population density and body size consistent across independent studies? A meta-analytical approach BJB
BINI,L. M.; COELHO,A. S. G; DINIZ-FILHO,J. A. F..
The Energetic Equivalence Rule (EER) is a controversial issue in ecology. This rule states that the amount of energy that each species uses per unit of area is independent of its body size. Here, we perform a meta-analytical procedure to combine and compare the slopes of population density and body size relationships across independent studies of mammals and birds. We then compared a distribution of 50,000 bootstrap combined slopes with the expected slope (b = -0.75) under the EER. The combined slopes obtained for mammals and birds separately were -0.755 and -0.321, respectively. The homogeneity hypothesis (i. e. within studies the slopes differ by no more than would be expected due sampling variation) was rejected in both cases. So, EER cannot be...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Meta-analysis; Energetic equivalence rule; Mammals; Birds.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000100002
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