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@article{1698056,
author = {Sentenská, Lenka and Uhl, Gabriele and Lubin, Yael},
article_location = {London},
article_number = {FEB 2020},
doi = {http://dx.doi.org/10.1016/j.anbehav.2019.11.021},
keywords = {brown widow spider; Latrodectus geometricus; male mate choice; mating with subadults; sexual cannibalism},
language = {eng},
issn = {0003-3472},
journal = {Animal Behaviour},
title = {Alternative mating tactics in a cannibalistic widow spider: do males prefer the safer option?},
url = {https://doi.org/10.1016/j.anbehav.2019.11.021},
volume = {160},
year = {2020}
}
TY - JOUR
ID - 1698056
AU - Sentenská, Lenka - Uhl, Gabriele - Lubin, Yael
PY - 2020
TI - Alternative mating tactics in a cannibalistic widow spider: do males prefer the safer option?
JF - Animal Behaviour
VL - 160
IS - FEB 2020
SP - 53-59
EP - 53-59
PB - Academic Press
SN - 00033472
KW - brown widow spider
KW - Latrodectus geometricus
KW - male mate choice
KW - mating with subadults
KW - sexual cannibalism
UR - https://doi.org/10.1016/j.anbehav.2019.11.021
L2 - https://doi.org/10.1016/j.anbehav.2019.11.021
N2 - Mating generally occurs with adult females, which undergo a suite of changes in morphology, physiology and behaviour during maturation. In the brown widow spider, Latrodectus geometricus, however, males can mate with immature females during a short period before they moult to the adult stage. Mating with immature females seems beneficial for males, because they are not at risk of being cannibalized, whereas cannibalism inevitably occurs in matings with adult females. We conducted choice experiments to elucidate male preference, courtship and mating behaviour with immature and adult females of different ages. We controlled for age of the females' webs to provide males with potential web-borne attractants of similar age. We tested whether males distinguish immature females that are ready to mate (late subadult stage) from adult females and from immature females that do not mate (early subadults), and we examined male response to young versus old adult females. Males approached and mated with adult females more frequently than late subadult females, but there were no differences in the frequencies of approach to early and late subadults or to adult females of different ages. Once on the web, however, males attempted to mate with the late subadults. We suggest that web-borne volatile cues, typical of adult females, may be reduced or lacking in late subadult females, yet less volatile cues may indicate receptivity.
ER -
SENTENSKÁ, Lenka, Gabriele UHL and Yael LUBIN. Alternative mating tactics in a cannibalistic widow spider: do males prefer the safer option? \textit{Animal Behaviour}. London: Academic Press, 2020, vol.~160, FEB 2020, p.~53-59. ISSN~0003-3472. Available from: https://dx.doi.org/10.1016/j.anbehav.2019.11.021.
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