Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.12/1507
Título: Can thin-billed prions Pachyptila belcheri breed successfully on an island with introduced rats, mice and cats? The case of New Island, Falkland Islands
Autor: Catry, Paulo
Silva, Mónica C.
MacKay, S.
Campos, Ana R.
Masello, Juan F.
Quillfeldt, Petra
Strange, Ian J.
Data: 2007
Editora: Springer-Verlag
Citação: Polar Biology, 30, 391-394
Resumo: Small burrowing petrels nesting on islands rarely survive introductions of mammalian predators. On New Island, a population of around two million pairs of thin-billed prions nests despite the presence of introduced ship rats, house mice and feral cats. Understanding the mechanisms of such coexistence is important, as it is important to establish a baseline for future monitoring. To do this, prion breeding success was determined for 7 years and in several habitats. Breeding success was high, except for the small fraction of the population that nests in tussock Poa Xabellata stands, where several lines of evidence suggest significant predation by rats. Such high breeding success possibly resulted from predator swamping in this highly seasonal environment. This study suggests that introduced mammals do not currently depress thin-billed prion breeding success on New Island. However, cats and rodents might have future harmful eVects if external factors depressed the prion population or allow a signiWcant population growth of predators on New Island.
Peer review: yes
URI: http://hdl.handle.net/10400.12/1507
ISSN: 0722-4060
Aparece nas colecções:UIE-E - Artigos em revistas internacionais

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