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The intrinsic rates of increase of insects of different sizes
Author(s) -
GASTON K. J.
Publication year - 1988
Publication title -
ecological entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.865
H-Index - 81
eISSN - 1365-2311
pISSN - 0307-6946
DOI - 10.1111/j.1365-2311.1988.tb00372.x
Subject(s) - biology , population dynamics , ecology , zoology , fecundity , demography , population , sociology
.1 A negative relationship between intrinsic rate of increase, r , and body size has only clearly been shown using data for species drawn from a number of phyla and covering several orders of magnitude in size. Analyses for more closely related species are equivocal. 2 Data for ninety‐one species of insects, from nine orders, were used to examine the correlation between intrinsic rate of increase and size. 3 Intrinsic rate of increase was negatively correlated with both length and weight across orders, but no relationship could be shown within orders. 4 Generation times were positively related to body size, but there was no relationship between net reproductive rate ( R Q ) and size. 5 These results support the hypothesis that documented relationships between species size and colonization success in insects could be a consequence of the scaling of intrinsic rate of increase with size.