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dc.contributor.author
Pietrek, Alejandro G.
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Escobar, Julio Martin
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Fasola, Laura
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Roesler, Carlos Ignacio
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Schiavini, Adrian Carlos Miguel
dc.date.available
2018-03-12T20:26:39Z
dc.date.issued
2016-11
dc.identifier.citation
Pietrek, Alejandro G.; Escobar, Julio Martin; Fasola, Laura; Roesler, Carlos Ignacio; Schiavini, Adrian Carlos Miguel; Why invasive Patagonian beavers thrive in unlikely habitats: a demographic perspective; Alliance Communications Group Division Allen Press; Journal of Mammalogy; 98; 1; 11-2016; 283-292
dc.identifier.issn
0022-2372
dc.identifier.uri
http://hdl.handle.net/11336/38591
dc.description.abstract
Understanding the demography of an invasive species is crucial to better guide managers seeking to slow the spread of the invader. Habitat differences can affect demographic rates, which may in turn impact the speed of the invasion, but this has been rarely addressed. We studied the demography of invasive North American beavers (Castor canadensis) in 2 contrasting habitat types of the island, forest and steppe, on Tierra del Fuego in southern Patagonia. We used repeated observations, mark-resight methods, telemetry, and camera traps to estimate colony size and demographic rates of beavers in the 2 habitats. Colony size and the number of offspring (?kits?) produced per colony per year were higher in the steppe, contrary to the belief that forest is better habitat. This may be the result of the longer time since invasion in the forests of Tierra del Fuego and that the forest subpopulation is showing density-dependent regulation. Survival of beavers was high in all age classes and was higher than survival rates recorded in North America. Our work shows that plasticity of habitat use and predator release have likely facilitated beaver invasion in Patagonia. The higher productivity and detectability of beavers in the steppe call for active management in a habitat previously assumed to be subprime.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Alliance Communications Group Division Allen Press
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Biological Invasions
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Castor Canadensis
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Density Dependence
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Habitat Heterogeneity
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Why invasive Patagonian beavers thrive in unlikely habitats: a demographic perspective
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-03-12T18:32:56Z
dc.journal.volume
98
dc.journal.number
1
dc.journal.pagination
283-292
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Lawrence
dc.description.fil
Fil: Pietrek, Alejandro G.. University of Duke; Estados Unidos
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Fil: Escobar, Julio Martin. University of Duke; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
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Fil: Fasola, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
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Fil: Roesler, Carlos Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología y Comportamiento Animal; Argentina
dc.description.fil
Fil: Schiavini, Adrian Carlos Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. University of Florida; Estados Unidos
dc.journal.title
Journal of Mammalogy
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jmammal/article/98/1/283/2452629
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/jmammal/gyw169
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