Cannibalismus sexualis
Cannibalismus sexualis est cannibalismus coniugis a femina ante, per, vel post copulationem effectus. Quae plerumque est res cuius proprietas speciebus plurimorum arachnidorum ordinum, ac nonnullis ordinibus insectorum est. Inter coniecturas ad evolutionem cannibalismi sexualis explanandam propositas sunt hypothesis pabulandi adaptivi, hypothesis nimii hostilis, et hypothesis identitatis falsae. Qui mores sese evolvisse putantur e pugna sexuali, quae fit cum genitales marium et feminarum usus variarent. In multis speciebus quae cannibalismum sexualem exhibent, femina marem detectum consumit. Feminae specierum cannibalisticarum plerumque hostiles sunt, coire invitae; ergo multi mares harum specierum mores adaptivos evolverunt ut aggressionem feminae evitent.

Cannibalismus sexualis plerumque videtur inter insecta, arachnida, et amphipoda. Sunt etiam indicia cannibalismi sexualis inter gastropoda et copepoda. Cannibalismus sexualis pervulgatus est inter species quibus est prominens dimorphismus magnitudinis sexualis; extremus quidem talis dimorphismus evolutionem cannibalismi sexualis in araneis propellere videtur.

Dimorphismus sexualis
Inseminatio traumatica
Pugna sexualis

Notae

Bibliographia
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Chapman, T., G. Arnqvist, J. Bangham, et L. Rowe. 2003. Sexual conflict. Trends in Ecology & Evolution 18: 41–47.
Fromhage, L., et J. M. Schneider. 2004. Safer sex with feeding females: sexual conflict in a cannibalistic spider. Behavioral Ecology 16: 377–382.
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Polis, G. A. 1981. The evolution and dynamics of intraspecific +4193 predation. Annual Review of Ecological Systems 51: 225–251.
Polis, G. A., et R. D. Farley. 1979. Behavior and Ecology of Mating. Arachnology 33-46.
Wilder, S. M., et A. L. Rypstra. 2008. Sexual size dimorphism predicts the frequency of sexual cannibalism within and among species of spiders. American Naturalist 172: 431–440.
Zhang, S., M. Kuntner, et D. Li. 2011. Mate binding: male adaptation to sexual conflict in the golden orb-web spider (Nephilidae: Nephila pilipes). Animal Behaviour 82: 1299–1304.

Nexus externi
Maxwell, Michael R. 2007. Research Interests: Sexual cannibalism, mate choice, and sperm competition in praying mantids. Situs proprius.

Cannibalismus

Sexualitas
Nutritio animalium