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- Wu, Lingbing; Zhang, Huaping; He, Ting; Liu, Zeliang; Peng, Yu
- Behavioral ecology and sociobiology 2013 v.67 no.2 pp. 205-212
- Pardosa; cannibalism; copulation; dimorphism; eggs; fecundity; hunger; males; progeny; virgin females; China
- ... Sexual cannibalism is hypothesized to have evolved as a way to obtain a high-quality meal, as an extreme mate choice or as a consequence of female aggressive spillover. Here, we examined underlying factors likely to influence sexual cannibalism in the wolf spider Pardosa pseudoannulata (Bösenberg & Strand, 1906) from China, including mating status, female egg-laid status, female hunger level, fema ...
- Pyron, M.; Pitcher, T. E.; Jacquemin, S. J.
- Behavioral ecology and sociobiology 2013 v.67 no.5 pp. 747-756
- Cyprinidae; body size; dimorphism; females; fish; males; mating systems; models; phylogeny; spawning; sperm competition; testes
- ... Mating systems evolve with sexual size dimorphism (SSD) in many animals. Mating systems with males larger than females occur when males compete for female access or guard territories, while mating systems with group mating tend to occur in species where females are the same size or larger than males. In addition to variation in SSD with mating system, sperm competition varies among mating systems ...