Female impersonation as an alternative reproductive strategy in giant cuttle®sh
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منابع مشابه
Pnm-10: Towards Integrating The Traditional Medicine with Modern Medical Approaches in Infertility
Background ART is costly for governments and couples seeking treatment. In addition to any other costs that may arise during treatment, such as medication, consultations and extra procedures, women undergoing IVF experience physical and emotional stress. Furthermore, it is not always possible to get a favorable outcome. Despite all the remarkable scientific advances in modern medicine, traditio...
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BACKGROUND Declining numbers of wild giant anteaters highlight the importance of sustainable captive populations. Unfortunately, captive reproductive management is limited by the lack of external physical indicators of female reproductive status and the aggressive behavior of males. We examined the endocrinology of the estrous cycle and pregnancy, and whether delayed implantation is a gestation...
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In several cooperatively breeding species, reproductively suppressed, nonbreeding females are attracted to infants and routinely provide alloparental care, while breeding females may attack or kill other females' infants. The mechanisms underlying the transition from alloparental to infanticidal behavior are unknown. In this study, we tested the hypothesis that this transition is associated wit...
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Alternative reproductive tactics (ARTs) are discrete reproductive phenotypes governed by decision rules called strategies. ARTs are fixed for life in species with alternative strategies, while tactic expression is plastic in species with a single strategy. ARTs have been investigated in males of many species, but few studies have tested whether the same theoretical framework applies in females....
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Same-sex pairing is widespread among animals but is difficult to explain in an evolutionary context because it does not result in reproduction, and thus same-sex behaviour often is viewed as maladaptive. Here, we compare survival, fecundity and transition probabilities of female Laysan albatross in different pair types, and we show how female-female pairing could be an adaptive alternative mati...
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