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Population dynamics of Equus conversidens (Perissodactyla, Equidae) from the late Pleistocene of Hidalgo (central Mexico): comparison with extant and fossil equid populations

Abstract : Our study compare life history traits of Pleistocene cohorts of Equus conversidens (Perissodactyla, Equidae) from the state of Hidalgo (Mexico) to eight current and extinct species of equids from Europe (France), Africa (Rwanda, Namibia) and United States (Canada). Life tables and age-structured models allow us to describe demographic parameters and mortality patterns. We highlight that E. conversidens are typical Kstrategists with high probability of surviving to adulthood with asymptotic growth rate (λ) indicating a population close to balance. Considering the mammalian associations from different habitats in the northernmost basin of Mexico such as the flexible diet of E. conversidens, we suggest that ambush (Panthera atrox) and cursorial predators (Canis dirus) play a major role in the prime dominated mortality pattern of this species.
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https://halshs.archives-ouvertes.fr/halshs-03024467
Contributor : Philippe Fernandez <>
Submitted on : Wednesday, November 25, 2020 - 6:52:10 PM
Last modification on : Friday, December 4, 2020 - 3:22:42 AM

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Alexis Pérez-Pérez, Victor Bravo-Cuevas, Philippe Fernandez. Population dynamics of Equus conversidens (Perissodactyla, Equidae) from the late Pleistocene of Hidalgo (central Mexico): comparison with extant and fossil equid populations. Journal of South American Earth Sciences, Elsevier, 2020. ⟨halshs-03024467⟩

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