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Stable isotopes document seasonal changes in trophic niches and winter foraging individual specialization in diving predators from the Southern Ocean.
TLDR
Comparison of summer and winter isotopic ratios and examining the summer diet of Antarctic and Subantarctic penguins and fur seals highlights the feeding habits of marine predators that were not previously addressed, and verifies the hypothesis that trophic niches widen when individuals are no longer central place foragers. Expand
Mating system, sexual dimorphism, and the opportunity for sexual selection in a territorial ungulate
TLDR
It is suggested that, along a continuum of opportunity for sexual selection, roe deer occupy a position closer to monogamous and monomorphic territorial ungulate than to highly polygynous, sexually dimorphic ungulates with dominance rank--based mating systems such as harems or roving mating systems. Expand
Antler Size Provides an Honest Signal of Male Phenotypic Quality in Roe Deer
TLDR
Antler size may provide an honest signal of male phenotypic quality in roe deer, suggesting the evolution of two reproductive tactics: heavy old males invested particularly heavily in antler growth (potsentially remaining competitive for territories), whereas light old males grew small antlers (potentially abandoning territory defense). Expand
Ranging behaviour and excursions of female roe deer during the rut
TLDR
It is speculatively suggested that female rut excursions provide an opportunity for active mate choice in roe deer, where males are territorial, although it cannot rule out the alternative explanation that these movements are a means to avoid male harassment. Expand
Spatial ecology of a ubiquitous Australian anteater, the short-beaked echidna (Tachyglossus aculeatus)
TLDR
Examination of data from other ant-eating mammals shows that as a group anteaters not only have smaller than predicted home ranges but they depart significantly from the normal relationship between home-range size and body mass. Expand
The allometry between secondary sexual traits and body size is nonlinear among cervids
TLDR
Evidence of nonlinear allometry in the relationship between antler size and body mass among 31 cervids is discussed in the light of life-history theory and the importance of testing for nonlinearity when studying allometric relationships is stressed. Expand
Multiple paternity occurs with low frequency in the territorial roe deer, Capreolus capreolus
TLDR
In support of the inbreeding avoidance hypothesis, it was found that parents who were strongly related produced offspring with lower individual heterozygosity that survived less well during their first summer than fawns with unrelated parents. Expand
Mating systems and sexual selection in ungulates New insights from a territorial species with low sexual size dimorphism: the European roe deer (Capreolus capreolus)
TLDR
Evidence is provided that multiple paternity is likely, but infrequent, in roe deer, suggesting that multiple mating among females may have evolved as a means to enhance fertilisation success and new insights are provided into the evolution of mating systems and sexual selection in ungulates. Expand
The link between behavioural type and natal dispersal propensity reveals a dispersal syndrome in a large herbivore
TLDR
It was shown that future dispersers were less neophobic and had higher energetic budgets than future philopatric individuals, providing strong support for a dispersal syndrome in this species. Expand
Access to mates in a territorial ungulate is determined by the size of a male's territory, but not by its habitat quality.
TLDR
Although territoriality of male roe deer has certainly evolved as a tactic for ensuring access to mates, the results suggest that it does not really conform to a conventional resource defence polygyny strategy, as males seem to gain no obvious benefit from defending a territory in an area of high habitat quality in terms of enhancedAccess to mates. Expand
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