Results 151 to 160 of about 3,946 (178)
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Journal of Fish Biology, 2000
Cannibalism among embryos and larvae of Brycon moorei (Characidae) occurs during daytime and night-time, and persists under permanent darkness. Embryos and larvae of dorada provisioned with formulated feed over the first week of exogenous feeding did not survive, except for those exerting cannibalism.
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Cannibalism among embryos and larvae of Brycon moorei (Characidae) occurs during daytime and night-time, and persists under permanent darkness. Embryos and larvae of dorada provisioned with formulated feed over the first week of exogenous feeding did not survive, except for those exerting cannibalism.
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Journal of Fish Biology, 1999
Sibling cannibalism among vundu Heterobranchus longifilis larvae started at the age of 4 days, with the prey caught tail‐first then swallowed up to the head, which was eventually discarded (type I cannibalism). At 17 days old, this type of cannibalism vanished and was replaced by the ingestion of the whole prey (type II cannibalism), which could only ...
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Sibling cannibalism among vundu Heterobranchus longifilis larvae started at the age of 4 days, with the prey caught tail‐first then swallowed up to the head, which was eventually discarded (type I cannibalism). At 17 days old, this type of cannibalism vanished and was replaced by the ingestion of the whole prey (type II cannibalism), which could only ...
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Sibling cannibalism in dorada under experimental conditions.
Journal of Fish Biology, 2000Cannibalism among embryos and larvae ofBrycon moorei(Characidae) occurs during daytime and night‐time, and persists under permanent darkness. Embryos and larvae of dorada‐provisioned with formulated feed over the first week of exogenous feeding did not survive, except for those exerting cannibalism.
E. Baras +3 more
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Choosy Cannibals Preferentially Consume Siblings with Relatively Low Fitness Prospects
The American Naturalist, 2016When an individual can selfishly cannibalize a relative or altruistically set it free, the benefits of altruism will be positively associated with the relative's fitness prospects (the benefits it receives from altruism). We tested the prediction that altruism should be preferentially directed toward high-quality relatives using larvae of the New ...
Matthew B, Dugas +3 more
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First documentation of sibling cannibalism in a small passerine species
Ibis, 2006In its broadest definition, cannibalism refers to feeding on an individual of the same species. Sibling cannibalism in birds is usually ascribed to raptor species. The cannibalistic behaviour generally follows brood reduction caused by sibling competition over resources or siblicide (Ingram 1959, Bortolotti et al .
AVIGAIL BEN‐DOV +2 more
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Cannibalism of nestling American kestrels by their parents and siblings
Canadian Journal of Zoology, 1991We examined the frequency of cannibalism of nestling American kestrels (Falco sparverius) in north-central Saskatchewan. We investigated human disturbance and food shortages as possible causes of it. Cannibalism of nestlings by their parents and siblings was confirmed by observation and by the presence of partially eaten carcasses, or inferred from ...
Gary R. Bortolotti +2 more
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Sibling Cannibalism in Juveniles of the Marine GastropodNassarius festivus(Powys, 1835)
Malacologia, 2010Shell-boring predation is well-studied in the prosobranch gastropods, including representatives of the Naticidae (Carriker, 1981; Kabat, 1990), Muricidae (Carriker, 1981), Buccinidae (Peterson & Black, 1995), Marginellidae (Ponder & Taylor, 1992; Taylor, 1998), and Cassidae (Hughes & Hughes, 1981).
Chiu, JMY +3 more
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Ontogenetic isolation favours sibling cannibalism in mites
Animal Behaviour, 2004Inclusive fitness theory suggests that cannibalistic individuals should preferentially eat unrelated prey when given a choice between related and unrelated individuals. Using the predatory mite Phytoseiulus persimilis, I investigated whether having contact with siblings during a sensitive ontogenetic phase or not determines whether cannibalistic ...
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Sibling cannibalism on the small octopusRobsonella fontaniana(d'Orbigny, 1834) paralarvae
Marine Biology Research, 2011Abstract Several experiments were conducted to determine if cannibalism or other aggressive behaviour occurs during the planktonic stage of the small octopus Robsonella fontaniana. Paralarvae from the same egg mass were treated under different rearing densities, with and without the presence of food, different water volume and confronted with the ...
Richard M. Miranda +4 more
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Family Affects Sibling Cannibalism in the Black Widow Spider,Latrodectus hesperus
Ethology, 2010AbstractAdaptive foraging tactics are shaped by genes, the environment and gene–environment interactions. Because of relatively high levels of agonism toward conspecifics, spiders have been a popular focus for behavioral–ecological examinations of conspecific predation, or cannibalism.
J. Chadwick Johnson +2 more
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