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Stochastic Population Dynamics of a Montane Ground-Dwelling Squirrel

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  • Jeffrey A Hostetler
  • Eva Kneip
  • Dirk H Van Vuren
  • Madan K Oli

Abstract

Understanding the causes and consequences of population fluctuations is a central goal of ecology. We used demographic data from a long-term (1990–2008) study and matrix population models to investigate factors and processes influencing the dynamics and persistence of a golden-mantled ground squirrel (Callospermophilus lateralis) population, inhabiting a dynamic subalpine habitat in Colorado, USA. The overall deterministic population growth rate λ was 0.94±SE 0.05 but it varied widely over time, ranging from 0.45±0.09 in 2006 to 1.50±0.12 in 2003, and was below replacement (λ

Suggested Citation

  • Jeffrey A Hostetler & Eva Kneip & Dirk H Van Vuren & Madan K Oli, 2012. "Stochastic Population Dynamics of a Montane Ground-Dwelling Squirrel," PLOS ONE, Public Library of Science, vol. 7(3), pages 1-10, March.
    • Handle: RePEc:plo:pone00:0034379
    DOI: 10.1371/journal.pone.0034379
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    References listed on IDEAS

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    1. Herwig Leirs & Nils Chr. Stenseth & James D. Nichols & James E. Hines & Ron Verhagen & Walter Verheyen, 1997. "Stochastic seasonality and nonlinear density-dependent factors regulate population size in an African rodent," Nature, Nature, vol. 389(6647), pages 176-180, September.
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    Cited by:

    1. Dimitra-Lida Rammou & Dimitris Kavroudakis & Dionisios Youlatos, 2021. "Distribution, Population Size, and Habitat Characteristics of the Endangered European Ground Squirrel ( Spermophilus citellus , Rodentia, Mammalia) in Its Southernmost Range," Sustainability, MDPI, vol. 13(15), pages 1-13, July.

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