Oedipus complex in an Antarctic fur seal pup?
نویسندگان
چکیده
منابع مشابه
Dynamic influence of maternal and pup traits on maternal care during lactation in an income breeder, the antarctic fur seal.
Life-history theory predicts that selection will favor optimal levels of parental effort that balance benefits of current reproduction with costs to survival and future reproduction. The optimal level of effort depends on parental traits, offspring traits, and provisioning strategy. Additionally, how these factors influence effort may differ depending on the stage of reproduction. The relative ...
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Antarctic krill Euphausia superba is a predominant species in the Southern Ocean, it is very sensitive to climate change, and it supports large stocks of fishes, seabirds, seals and whales in Antarctic marine ecosystems. Modern krill stocks have been estimated directly by net hauls and acoustic surveys; the historical krill density especially the long-term one in the Southern Ocean, however, is...
متن کاملFur Seal Investigations, 1995
Counts of adult male northern fur seals (Callorhinus ursinus) are obtained each year on St. Paul Island and semi-annually on St. George Island as a factor of population monitoring. In 1995, counts were obtained from 11 to 16 July. A total of 5,154 harem and 8,459 idle adult male seals were counted on St. Paul Island. On St. George Island a total of 1,242 harem and 1,054 idle adult males were co...
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Next-generation sequencing provides a powerful new approach for developing functional genomic tools for nonmodel species, helping to narrow the gap between studies of model organisms and those of natural populations. Consequently, massively parallel 454 sequencing was used to characterize a normalized cDNA library derived from skin biopsy samples of twelve Antarctic fur seal (Arctocephalus gaze...
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Investigating the ontogeny of niche differentiation enables to determine at which life-stages sexual segregation arises, providing insights into the main factors driving resource partitioning. We investigated the ontogeny of foraging ecology in Antarctic fur seals (Arctocephalus gazella), a highly dimorphic species with contrasting breeding strategies between sexes. Sequential δ(13)C and δ(15)N...
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ژورنال
عنوان ژورنال: Journal of Ethology
سال: 2011
ISSN: 0289-0771,1439-5444
DOI: 10.1007/s10164-011-0273-1