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Sexual size dimorphism and sexual selection in primates
Mammal Review, 2020Abstract In most animals, females are larger than males. Paradoxically, sexual size dimorphism is biased towards males in most mammalian species. An accepted explanation is that sexual dimorphism in mammals evolved by intramale sexual selection.
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Sexual size dimorphism in birds
2007AbstractBirds provide excellent model organisms for testing functional explanations of sexual size dimorphism (SSD), since many species are exceptionally well-studied in nature. This chapter reviews four major functional hypotheses of SSD, and tests these using data on five morphometric traits from over 2,500 bird species.
Tamás Székely +2 more
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Sexual size dimorphism in Asian colobines revisited
American Journal of Primatology, 2009AbstractAsian colobines exhibit a wide range of sexual dimorphism in body mass. Some species are monomorphic, whereas others are strongly dimorphic. Strong sexual dimorphism is generally viewed as the consequence of intense male contest competition over access to mates, but this idea appears not to explain variation in sexual dimorphism in Asian ...
Grueter, C C, van Schaik, C P
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Unpredictable food and sexual size dimorphism in insects
Proceedings of the Royal Society of London. Series B: Biological Sciences, 1994The evolution of sexual size dimorphism is likely to be affected by the amount of resources each sex invests in offspring. Male nuptial gifts, occurring in many insect species, might reduce the value of large size in females and increase the value for males.
O, Leimar, B, Karlsson, C, Wiklund
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Sexual Size Dimorphism in Chipmunks
Journal of Mammalogy, 1990Sexual size dimorphism among chipmunks is widespread, with females being larger in the taxa exhibiting such dimorphism. The degree of sexual size dimorphism is not correlated with body size. Females generally are larger in severe environments relative to moderate environments, whereas the opposite usually is true for males.
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Protandry, sexual size dimorphism, and adaptive growth
Journal of Theoretical Biology, 2013Adaptive growth refers to the strategic adjustment of growth rate by individuals to maximize some component of fitness. The concept of adaptive growth proliferated in the 1990s, in part due to an influential theoretical paper by Peter Abrams and colleagues. In their 1996 paper, Abrams et al.
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Sexual Size Dimorphism in the Plethodontidae
2000Sexual size dimorphism (or SSD for short) is common in vertebrate animals. It reflects the adaptation of males and females to different reproductive or ecological roles. SSD is male-biased when males are larger than females (as is often the case in birds and mammals), and female-biased when females are larger than males (as in many ectothermic ...
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Sexual size dimorphism and male combat in snakes
Oecologia, 1978This paper reviews published literature on snakes to test the hypothesis that large male size, relative to female size, evolves because of the advantage it confers in male combat. Analysis of the data reveals a high correlation between the occurrence of male combat, and sexual dimorphism in which the male is the larger sex.
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Sexual selection, sexual size dimorphism and Rensch’s rule in Odonata
Journal of Evolutionary Biology, 2008AbstractOdonata (dragonflies and damselflies) exhibit a range of sexual size dimorphism (SSD) that includes species with male‐biased (males > females) or female‐biased SSD (males < females) and species exhibiting nonterritorial or territorial mating strategies.
M A, Serrano-Meneses +4 more
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Sexual size dimorphism and sexual selection in turtles (order testudines)
Oecologia, 1980This paper combines published and original data on sexual size dimorphism, reproductive behavior, and habitat types in turtles. Our major finding is that observed patterns of sexual size dimorphism correlate with habitat type and male mating strategy. (1) In most terrestrial species, males engage in combat with each other.
James F, Berry, Richard, Shine
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