Density but not climate affects the population growth rate of guanacos (Lama guanicoe) (Artiodactyla, Camelidae)
- Autores
- Zubillaga, María; Skewes, O.; Soto, N.; Rabinovich, Jorge Eduardo
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We analyzed the effects of population density and climatic variables on the rate of population growth in the guanaco (Lama guanicoe), a wild camelid species in South America. We used a time series of 36 years (1977-2012) of population sampling in Tierra del Fuego, Chile. Individuals were grouped in three age-classes: newborns, juveniles, and adults; for each year a female population transition matrix was constructed, and the population growth rate (Λ) was estimated for each year as the matrix highest positive eigenvalue. We applied a regression analysis with finite population growth rate (Λ) as dependent variable, and total guanaco population, sheep population, annual mean precipitation, and winter mean temperature as independent variables, with and without time lags. The effect of population size was statistically significant, but the effects of the sheep population and the climatic variables on guanaco population growth rate were not statistically significant.
Centro de Estudios Parasitológicos y de Vectores - Materia
-
Ciencias Naturales
Camelidae
Climatic variables
Density effects
Guanaco
Population regulation
Population growth rate - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/3.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/85147
Ver los metadatos del registro completo
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Density but not climate affects the population growth rate of guanacos (Lama guanicoe) (Artiodactyla, Camelidae)Zubillaga, MaríaSkewes, O.Soto, N.Rabinovich, Jorge EduardoCiencias NaturalesCamelidaeClimatic variablesDensity effectsGuanacoPopulation regulationPopulation growth rateWe analyzed the effects of population density and climatic variables on the rate of population growth in the guanaco (Lama guanicoe), a wild camelid species in South America. We used a time series of 36 years (1977-2012) of population sampling in Tierra del Fuego, Chile. Individuals were grouped in three age-classes: newborns, juveniles, and adults; for each year a female population transition matrix was constructed, and the population growth rate (Λ) was estimated for each year as the matrix highest positive eigenvalue. We applied a regression analysis with finite population growth rate (Λ) as dependent variable, and total guanaco population, sheep population, annual mean precipitation, and winter mean temperature as independent variables, with and without time lags. The effect of population size was statistically significant, but the effects of the sheep population and the climatic variables on guanaco population growth rate were not statistically significant.Centro de Estudios Parasitológicos y de Vectores2014-09-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/85147enginfo:eu-repo/semantics/altIdentifier/issn/2046-1402info:eu-repo/semantics/altIdentifier/doi/10.12688/f1000research.2-210.v2info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/Creative Commons Attribution 3.0 Unported (CC BY 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:08:17Zoai:sedici.unlp.edu.ar:10915/85147Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:08:17.587SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Density but not climate affects the population growth rate of guanacos (Lama guanicoe) (Artiodactyla, Camelidae) |
title |
Density but not climate affects the population growth rate of guanacos (Lama guanicoe) (Artiodactyla, Camelidae) |
spellingShingle |
Density but not climate affects the population growth rate of guanacos (Lama guanicoe) (Artiodactyla, Camelidae) Zubillaga, María Ciencias Naturales Camelidae Climatic variables Density effects Guanaco Population regulation Population growth rate |
title_short |
Density but not climate affects the population growth rate of guanacos (Lama guanicoe) (Artiodactyla, Camelidae) |
title_full |
Density but not climate affects the population growth rate of guanacos (Lama guanicoe) (Artiodactyla, Camelidae) |
title_fullStr |
Density but not climate affects the population growth rate of guanacos (Lama guanicoe) (Artiodactyla, Camelidae) |
title_full_unstemmed |
Density but not climate affects the population growth rate of guanacos (Lama guanicoe) (Artiodactyla, Camelidae) |
title_sort |
Density but not climate affects the population growth rate of guanacos (Lama guanicoe) (Artiodactyla, Camelidae) |
dc.creator.none.fl_str_mv |
Zubillaga, María Skewes, O. Soto, N. Rabinovich, Jorge Eduardo |
author |
Zubillaga, María |
author_facet |
Zubillaga, María Skewes, O. Soto, N. Rabinovich, Jorge Eduardo |
author_role |
author |
author2 |
Skewes, O. Soto, N. Rabinovich, Jorge Eduardo |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Ciencias Naturales Camelidae Climatic variables Density effects Guanaco Population regulation Population growth rate |
topic |
Ciencias Naturales Camelidae Climatic variables Density effects Guanaco Population regulation Population growth rate |
dc.description.none.fl_txt_mv |
We analyzed the effects of population density and climatic variables on the rate of population growth in the guanaco (Lama guanicoe), a wild camelid species in South America. We used a time series of 36 years (1977-2012) of population sampling in Tierra del Fuego, Chile. Individuals were grouped in three age-classes: newborns, juveniles, and adults; for each year a female population transition matrix was constructed, and the population growth rate (Λ) was estimated for each year as the matrix highest positive eigenvalue. We applied a regression analysis with finite population growth rate (Λ) as dependent variable, and total guanaco population, sheep population, annual mean precipitation, and winter mean temperature as independent variables, with and without time lags. The effect of population size was statistically significant, but the effects of the sheep population and the climatic variables on guanaco population growth rate were not statistically significant. Centro de Estudios Parasitológicos y de Vectores |
description |
We analyzed the effects of population density and climatic variables on the rate of population growth in the guanaco (Lama guanicoe), a wild camelid species in South America. We used a time series of 36 years (1977-2012) of population sampling in Tierra del Fuego, Chile. Individuals were grouped in three age-classes: newborns, juveniles, and adults; for each year a female population transition matrix was constructed, and the population growth rate (Λ) was estimated for each year as the matrix highest positive eigenvalue. We applied a regression analysis with finite population growth rate (Λ) as dependent variable, and total guanaco population, sheep population, annual mean precipitation, and winter mean temperature as independent variables, with and without time lags. The effect of population size was statistically significant, but the effects of the sheep population and the climatic variables on guanaco population growth rate were not statistically significant. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-09-18 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/85147 |
url |
http://sedici.unlp.edu.ar/handle/10915/85147 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/2046-1402 info:eu-repo/semantics/altIdentifier/doi/10.12688/f1000research.2-210.v2 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported (CC BY 3.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported (CC BY 3.0) |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
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SEDICI (UNLP) |
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Universidad Nacional de La Plata |
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UNLP |
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UNLP |
repository.name.fl_str_mv |
SEDICI (UNLP) - Universidad Nacional de La Plata |
repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
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13.22299 |