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Mean body size estimation in large mammals and the computation of biomass in past ecosystems: An application to the Pleistocene sites of Orce and Sierra de Atapuerca (Spain)

  • Datos identificativos

    Identificador: imarina:9247858
    Autores:
    Rodriguez-Gomez, GPalmqvist, PMartinez-Navarro, BMartin-Gonzalez, JABermudez De Castro, JM
    Resumen:
    Estimates of adult body mass are usually considered as equivalent of mean population body size in most studies of ancient mammals. However, given that any population is composed in part of subadult individuals, this approach overestimates the mean population body mass and biomass. For this reason, more realistic estimates of mean population body mass should be used. In this paper, we: 1) test five different proxies of population mean mass; and 2) estimate the total prey biomass in the paleoecosystems from the Orce and Atapuerca sites as an approach for estimating their carrying capacity. Our results for past ecosystems support the use of survival profiles derived from the Weibull model (SPW), as they show values in better agreement with those of extant populations. They also estimate higher carrying capacities for the faunal assemblages of Orce than for those of Atapuerca. We suggest that the environmental conditions of Orce could have played an important role in the first peopling of Europe.
  • Otros:

    Autor según el artículo: Rodriguez-Gomez, G; Palmqvist, P; Martinez-Navarro, B; Martin-Gonzalez, JA; Bermudez De Castro, JM
    Departamento: Història i Història de l'Art
    Autor/es de la URV: Martínez Navarro, Bienvenido
    Palabras clave: Weibull model Venta-micena orce Trophic resource availability Sima del elefante Predator-prey relationships Paleoecosystems On-crop biomass Middle pleistocene Megantereon-whitei broom Macromammals Guadix-baza basin Gran dolina Fuente nueva-3 orce European early pleistocene Carrying capacity Body mass
    Resumen: Estimates of adult body mass are usually considered as equivalent of mean population body size in most studies of ancient mammals. However, given that any population is composed in part of subadult individuals, this approach overestimates the mean population body mass and biomass. For this reason, more realistic estimates of mean population body mass should be used. In this paper, we: 1) test five different proxies of population mean mass; and 2) estimate the total prey biomass in the paleoecosystems from the Orce and Atapuerca sites as an approach for estimating their carrying capacity. Our results for past ecosystems support the use of survival profiles derived from the Weibull model (SPW), as they show values in better agreement with those of extant populations. They also estimate higher carrying capacities for the faunal assemblages of Orce than for those of Atapuerca. We suggest that the environmental conditions of Orce could have played an important role in the first peopling of Europe.
    Áreas temáticas: Paleontology Geociências Ciências biológicas i Biodiversidade
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: bienvenido.martinez@urv.cat
    Fecha de alta del registro: 2024-09-07
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://sciencepress.mnhn.fr/fr/periodiques/comptes-rendus-palevol/21/10
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Comptes Rendus Palevol. 21 (10): 207-233
    Referencia de l'ítem segons les normes APA: Rodriguez-Gomez, G; Palmqvist, P; Martinez-Navarro, B; Martin-Gonzalez, JA; Bermudez De Castro, JM (2022). Mean body size estimation in large mammals and the computation of biomass in past ecosystems: An application to the Pleistocene sites of Orce and Sierra de Atapuerca (Spain). Comptes Rendus Palevol, 21(10), 207-233. DOI: 10.5852/cr-palevol2022v21a10
    DOI del artículo: 10.5852/cr-palevol2022v21a10
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2022
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Paleontology
    Weibull model
    Venta-micena orce
    Trophic resource availability
    Sima del elefante
    Predator-prey relationships
    Paleoecosystems
    On-crop biomass
    Middle pleistocene
    Megantereon-whitei broom
    Macromammals
    Guadix-baza basin
    Gran dolina
    Fuente nueva-3 orce
    European early pleistocene
    Carrying capacity
    Body mass
    Paleontology
    Geociências
    Ciências biológicas i
    Biodiversidade
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