Egg sac inhibits filial cannibalism in the wolf spider, Schizocosa ocreata
Article Abstract:
The inhibition of cannibalism in females as a reaction to some physiological transformation during reproduction is hypothesized. The benefit of an abnormal behaviour is shown by wolf spiders to examine this hypothesis directly. The change in cannibalistic proclivities is in close accord with a change in female reproductive state, though it does not seem to be associated with mating and fertilization, or reproduction. The low level of cannibalism in reproductive virgin females in contrast to virgin females indicates that the initiation seems to stimulated by the presence of an egg sac.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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Female choice and pre-existing bias: visual cues during courtship in two Schizocosa wolf spiders (Araneae: Lycosidae)
Article Abstract:
Female wolf spiders of S. Ocreata and S. Rovneri species show differential receptivity to video images of leg waving displays of males with/without tufts, which affects their mate recognition and courtship behavior. Female S. Ocreata show more receptivity to conspecific males with tufts and/or active leg displays as compared to heterospecific males. Female S. Rovneri, in contrast, are more receptive to heterospecific males with tufts and conspecific males with tufts added as compared to males without tufts. Tufts thus serve as signals for mate choice and stimulate pre-existing bias.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1996
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Sexual cannibalism and mate choice decisions in wolf spiders: Influence of male size and secondary sexual characters
Article Abstract:
A study was carried out to examine the potential for mate choice and sexual cannibalism to act on male size and a conspicuous male ornament. Results suggest that mate choice and sexual cannibalism can impose reinforcing directional selection on male size and secondary sexual characters.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2005
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