Demography and population dynamics of South American fur seals

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dc.contributor.authorLima, M
dc.contributor.authorPaez, E
dc.date.accessioned2025-01-21T01:33:12Z
dc.date.available2025-01-21T01:33:12Z
dc.date.issued1997
dc.description.abstractThe demography and population dynamics of South American fur seals, Arctocephalus australis, at Isla de Lobos, Uruguay, were examined. Age-specific rates of survival of females were estimated during four harvest periods (1987, 1988, 1990, and 1991). The estimated continuous and finite rate of population growth (r = 0.021 and lambda = 1.021, respectively), obtained from an estimation of abundance of pups was about equal to the value obtained from a matrix model (lambda = 1.014). South American fur seals at Isla de Lobos had the highest rates of survival of adults between 1.5 and 2.5 years. Senescence in the age-specific rates of reproduction was determined. The high rates of survival of young females may be the most important life-history parameter in determining the rates of population growth, Fur seals, as other large mammals, appear to have life histories characterized by high rates of survival of adults and low effects of reproduction on growth rates of populations.
dc.fuente.origenWOS
dc.identifier.eissn1545-1542
dc.identifier.issn0022-2372
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97388
dc.identifier.wosidWOS:A1997XU24300022
dc.issue.numero3
dc.language.isoen
dc.pagina.final920
dc.pagina.inicio914
dc.revistaJournal of mammalogy
dc.rightsacceso restringido
dc.subjectArctocephalus australis
dc.subjectage-distribution
dc.subjectdemography
dc.subjectmatrix models
dc.subject.ods14 Life Below Water
dc.subject.odspa14 Vida submarina
dc.titleDemography and population dynamics of South American fur seals
dc.typeartículo
dc.volumen78
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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