Results 121 to 130 of about 13,961 (266)

Genetic isolation and morphological divergence mediated by high-energy rapids in two cichlid genera from the lower Congo rapids

open access: yesBMC Evolutionary Biology, 2010
Background It is hypothesized that one of the mechanisms promoting diversification in cichlid fishes in the African Great Lakes has been the well-documented pattern of philopatry along shoreline habitats leading to high levels of genetic isolation among ...
Stiassny Melanie LJ   +2 more
doaj   +1 more source

Intersexual conflict influences female reproductive success in a female-dispersing primate [PDF]

open access: yes, 2019
In group-living mammals, individual efforts to maximize reproductive success result in conflicts and compromises between the sexes. Females utilize counterstrategies to minimize the costs of sexual coercion by males, but few studies have examined the ...
Breuer, T.   +5 more
core   +2 more sources

Kin-directed food sharing promotes lifetime natal philopatry of both sexes in a population of fish-eating killer whales, Orcinus orca

open access: yes, 2016
The vast majority of social animals exhibit sex-biased dispersal as a strategy to reduce kin competition and avoid inbreeding. Piscivorous ‘resident’ killer whales, Orcinus orca, of the eastern North Pacific, however, are unusual in that both sexes ...
Brianna M Wright   +4 more
semanticscholar   +1 more source

Survival and divergence in a small group: The extraordinary genomic history of the endangered Apennine brown bear stragglers [PDF]

open access: yes, 2017
About 100 km east of Rome, in the central Apennine Mountains, a critically endangered population of ∼50 brown bears live in complete isolation. Mating outside this population is prevented by several 100 km of bear-free territories.
Benazzo, Andrea   +26 more
core   +4 more sources

Evidence for frequent incest in a cooperatively breeding mammal [PDF]

open access: yes, 2014
Journal ArticleResearch Support, Non-U.S. Gov'tCopyright © 2014 The Authors.As breeding between relatives often results in inbreeding depression, inbreeding avoidance is widespread in the animal kingdom.
Cant, Michael A.   +3 more
core   +1 more source

Female philopatry in a heterogeneous environment: ordinary conditions leading to extraordinary ESS sex ratios

open access: yesBMC Evolutionary Biology, 2007
Background We use a simulation-based model to study the impact of female philopatry and heterogeneity of habitat quality on the evolution of primary sex ratio.
Guillon Jean-Michel, Hulin Vincent
doaj   +1 more source

Female philopatry and its social benefits among Bornean orangutans [PDF]

open access: yes, 2018
Female philopatry in mammals is generally associated with ecological and sometimes social benefits, and often with dispersal by males. Previous studies on dispersal patterns of orangutans, largely non-gregarious Asian great apes, have yielded conflicting
Ackermann, Corinne   +8 more
core  

Insights into reproduction and behavior of the smalltooth sawfish Pristis pectinata

open access: yesEndangered Species Research, 2017
Sawfishes (Family Pristidae) constitute one of the most threatened families of marine fish, and substantial management efforts are required to stabilize and recover their populations worldwide. Philopatry is common in marine animals, including sharks and
Feldheim, KA   +4 more
doaj   +1 more source

First record of an Odontaspidid shark in Ascension Island waters [PDF]

open access: yes, 2019
The occurrence of the poorly understood shark species Odontapsis ferox is reported at an oceanic seamount in the central south Atlantic, within the Exclusive Economic Zone of Ascension Island.
Burgess, George H.   +3 more
core   +2 more sources

The effect of relatedness and pack size on territory overlap in African wild dogs

open access: yesMovement Ecology, 2017
Background Spacing patterns mediate competitive interactions between conspecifics, ultimately increasing fitness. The degree of territorial overlap between neighbouring African wild dog (Lycaon pictus) packs varies greatly, yet the role of factors ...
Craig R. Jackson   +3 more
doaj   +1 more source

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