Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) population

Autores
Donadio, Emiliano; Buskirk, Steven; Novaro, Andres Jose
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Neotropical ungulates are poorly understood with regard to age-specific mortality and how it relates to different mortality causes. During January 2008–April 2011, we investigated mortality patterns of calf (¨<1 year old) and adult vicunas (Vicugna vicugna) in west-central Argentina. Specifically, we analyzed whether birth mass, birth date, and sex of radiomarked vicuna calves affected 1st-year survival; quantified cause of death for marked calves and unmarked adults; and explored how primary productivity and quality of forage and diet related to body condition of adult vicuna carcasses. Birth mass was a strong predictor of 1st-year survival: a 1-kg (~18%) increase in birth mass resulted in a 54% decline in the risk of death. Further, low survival rate in 1 calendar year was associated with low mean birth mass during that year, but not with population density and forage quality in the previous year. Puma (Puma concolor) predation accounted for > 49% (n=93) and 91% (n=89) of the mortality in calves and adults, respectively. Body condition of adult vicunas killed by pumas varied seasonally and correlated with seasonal changes in primary productivity and forage and diet quality. Our results highlighted the importance of puma predation and low birth mass as proximate causes of vicuna mortality. How environmental factors (e.g., early summer precipitation) influence forage and ultimately mortality has yet to be determined.
Fil: Donadio, Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Buskirk, Steven. University of Wyoming; Estados Unidos. University Avenue; Estados Unidos
Fil: Novaro, Andres Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Materia
BIRTH MASS
BODY CONDITION
PREDATION
PUMA
SOUTH AMERICA
VICUÑA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/112924
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) populationDonadio, EmilianoBuskirk, StevenNovaro, Andres JoseBIRTH MASSBODY CONDITIONPREDATIONPUMASOUTH AMERICAVICUÑAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Neotropical ungulates are poorly understood with regard to age-specific mortality and how it relates to different mortality causes. During January 2008–April 2011, we investigated mortality patterns of calf (¨<1 year old) and adult vicunas (Vicugna vicugna) in west-central Argentina. Specifically, we analyzed whether birth mass, birth date, and sex of radiomarked vicuna calves affected 1st-year survival; quantified cause of death for marked calves and unmarked adults; and explored how primary productivity and quality of forage and diet related to body condition of adult vicuna carcasses. Birth mass was a strong predictor of 1st-year survival: a 1-kg (~18%) increase in birth mass resulted in a 54% decline in the risk of death. Further, low survival rate in 1 calendar year was associated with low mean birth mass during that year, but not with population density and forage quality in the previous year. Puma (Puma concolor) predation accounted for > 49% (n=93) and 91% (n=89) of the mortality in calves and adults, respectively. Body condition of adult vicunas killed by pumas varied seasonally and correlated with seasonal changes in primary productivity and forage and diet quality. Our results highlighted the importance of puma predation and low birth mass as proximate causes of vicuna mortality. How environmental factors (e.g., early summer precipitation) influence forage and ultimately mortality has yet to be determined.Fil: Donadio, Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Buskirk, Steven. University of Wyoming; Estados Unidos. University Avenue; Estados UnidosFil: Novaro, Andres Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaOxford University Press2012-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/112924Donadio, Emiliano; Buskirk, Steven; Novaro, Andres Jose; Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) population; Oxford University Press; Journal of Mammalogy; 93; 6; 12-2012; 1536-15440022-23721545-1542CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jmammal/article/93/6/1536/914102info:eu-repo/semantics/altIdentifier/doi/10.1644/12-MAMM-A-062.1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:35:37Zoai:ri.conicet.gov.ar:11336/112924instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:35:38.148CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) population
title Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) population
spellingShingle Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) population
Donadio, Emiliano
BIRTH MASS
BODY CONDITION
PREDATION
PUMA
SOUTH AMERICA
VICUÑA
title_short Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) population
title_full Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) population
title_fullStr Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) population
title_full_unstemmed Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) population
title_sort Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) population
dc.creator.none.fl_str_mv Donadio, Emiliano
Buskirk, Steven
Novaro, Andres Jose
author Donadio, Emiliano
author_facet Donadio, Emiliano
Buskirk, Steven
Novaro, Andres Jose
author_role author
author2 Buskirk, Steven
Novaro, Andres Jose
author2_role author
author
dc.subject.none.fl_str_mv BIRTH MASS
BODY CONDITION
PREDATION
PUMA
SOUTH AMERICA
VICUÑA
topic BIRTH MASS
BODY CONDITION
PREDATION
PUMA
SOUTH AMERICA
VICUÑA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Neotropical ungulates are poorly understood with regard to age-specific mortality and how it relates to different mortality causes. During January 2008–April 2011, we investigated mortality patterns of calf (¨<1 year old) and adult vicunas (Vicugna vicugna) in west-central Argentina. Specifically, we analyzed whether birth mass, birth date, and sex of radiomarked vicuna calves affected 1st-year survival; quantified cause of death for marked calves and unmarked adults; and explored how primary productivity and quality of forage and diet related to body condition of adult vicuna carcasses. Birth mass was a strong predictor of 1st-year survival: a 1-kg (~18%) increase in birth mass resulted in a 54% decline in the risk of death. Further, low survival rate in 1 calendar year was associated with low mean birth mass during that year, but not with population density and forage quality in the previous year. Puma (Puma concolor) predation accounted for > 49% (n=93) and 91% (n=89) of the mortality in calves and adults, respectively. Body condition of adult vicunas killed by pumas varied seasonally and correlated with seasonal changes in primary productivity and forage and diet quality. Our results highlighted the importance of puma predation and low birth mass as proximate causes of vicuna mortality. How environmental factors (e.g., early summer precipitation) influence forage and ultimately mortality has yet to be determined.
Fil: Donadio, Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Buskirk, Steven. University of Wyoming; Estados Unidos. University Avenue; Estados Unidos
Fil: Novaro, Andres Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
description Neotropical ungulates are poorly understood with regard to age-specific mortality and how it relates to different mortality causes. During January 2008–April 2011, we investigated mortality patterns of calf (¨<1 year old) and adult vicunas (Vicugna vicugna) in west-central Argentina. Specifically, we analyzed whether birth mass, birth date, and sex of radiomarked vicuna calves affected 1st-year survival; quantified cause of death for marked calves and unmarked adults; and explored how primary productivity and quality of forage and diet related to body condition of adult vicuna carcasses. Birth mass was a strong predictor of 1st-year survival: a 1-kg (~18%) increase in birth mass resulted in a 54% decline in the risk of death. Further, low survival rate in 1 calendar year was associated with low mean birth mass during that year, but not with population density and forage quality in the previous year. Puma (Puma concolor) predation accounted for > 49% (n=93) and 91% (n=89) of the mortality in calves and adults, respectively. Body condition of adult vicunas killed by pumas varied seasonally and correlated with seasonal changes in primary productivity and forage and diet quality. Our results highlighted the importance of puma predation and low birth mass as proximate causes of vicuna mortality. How environmental factors (e.g., early summer precipitation) influence forage and ultimately mortality has yet to be determined.
publishDate 2012
dc.date.none.fl_str_mv 2012-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/112924
Donadio, Emiliano; Buskirk, Steven; Novaro, Andres Jose; Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) population; Oxford University Press; Journal of Mammalogy; 93; 6; 12-2012; 1536-1544
0022-2372
1545-1542
CONICET Digital
CONICET
url http://hdl.handle.net/11336/112924
identifier_str_mv Donadio, Emiliano; Buskirk, Steven; Novaro, Andres Jose; Juvenile and adult mortality patterns in a vicuña (Vicugna vicugna) population; Oxford University Press; Journal of Mammalogy; 93; 6; 12-2012; 1536-1544
0022-2372
1545-1542
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jmammal/article/93/6/1536/914102
info:eu-repo/semantics/altIdentifier/doi/10.1644/12-MAMM-A-062.1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613110997975040
score 13.070432

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