 How density-dependence and climate affect guanaco population dynamicsMaría Zubillaga, Oscar Skewes, Nicolás Soto and Jorge E. Rabinovich Ecological Modelling, 2018, vol. 385, issue C, 189-196 Abstract: The guanaco (Lama guanicoe) is one of the two South American native wild camelid species, and despite its important ecological role and economic value conservationists are in a permanent conflict with sheep ranchers. Currently, management programs are being developed in Argentina and Chile to guarantee guanaco and grassland conservation. We developed a non-linear simulation, three stages-structured matrix model of guanaco population dynamics, with climatic and density-dependence effects, that can be used as a tool to devise optimal management interventions. We estimated population parameters using a 41-year time-series data from a guanaco population in Tierra del Fuego (Chile). We conducted a multivariate multiple regression analysis between matrix demographic parameters (survival at each stage and fertility) as dependent variables, and climatic variables and population density as independent variables. Keywords: Demographic parameters; Guanaco; Multivariate multiple regression; Population regulation; South American camelids; Ungulates (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:385:y:2018:i:c:p:189-196 DOI: 10.1016/j.ecolmodel.2018.07.010 Access Statistics for this article Ecological Modelling is currently edited by Brian D. Fath More articles in Ecological Modelling from Elsevier |
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