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- van Lieshout, Emile; Svensson, P. Andreas; Wong, Bob B. M.
- Behavioral ecology and sociobiology 2013 v.67 no.3 pp. 513-518
- Gobiidae; allometry; anaerobic conditions; body size; females; fins; fish; head; males; sexual dimorphism; sexual selection
- ... Positive static allometry is a scaling relationship where the relative size of traits covaries with adult body size. Traditionally, positive allometry is thought to result from either altered physiological requirements at larger body size or from strongly condition-dependent allocation under sexual selection. Yet, there are no theoretical reasons why positive allometry cannot evolve in fitness-rel ...
- Takeyama, Tomohiro; Namizaki, Naoko; Kohda, Masanori
- Behavioral ecology and sociobiology 2013 v.67 no.3 pp. 421-428
- Gobiidae; cages; cannibalism; fecundity; fish; gravid females; males; nests; sex ratio; spawning
- ... Theoretical models predict that increased mate availability accelerates filial cannibalism by the parental male, but we do not yet fully understand how the various aspects of mate availability contribute to this effect. We examined the effects of two elements of mate availability—female fecundity and sex ratio—on filial cannibalism by the lizard goby, Rhinogobius flumineus, which is a paternal nes ...