globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2013.11.011
论文题名:
Ungulate carrying capacity in Pleistocene Mediterranean ecosystems: Evidence from the Atapuerca sites
作者: Rodríguez J.; Blain H.-A.; Mateos A.; Martín-González J.A.; Cuenca-Bescós G.; Rodríguez-Gómez G.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2014
卷: 393
起始页码: 122
结束页码: 134
语种: 英语
英文关键词: Atapuerca ; Early-Middle Pleistocene ; Large herbivores ; Resource availability ; Ungulates
英文摘要: Large herbivore carrying capacity, that is, the maximum biomass of large herbivorous mammals that an ecosystem is able to sustain for the long term, is a key factor in ecosystems trophic dynamics. The carrying capacity of Pleistocene ecosystems conditioned the survival opportunities and colonization capabilities of hominin populations in Europe. In this study, we use the amphibian and squamate record of two Early and Middle Pleistocene sites from Sierra de Atapuerca (Spain) to obtain estimates of past temperature and rainfall values. A function derived from the analysis of a wide set of recent mammalian communities is used to infer the large herbivore carrying capacity of the Atapuerca ecosystems during the Pleistocene from those climatic variables. This function provides reliable estimates of large herbivore carrying capacity in open environments but not in forest communities. The results presented in this study indicate that carrying capacity was higher at Atapuerca during most of the sequence than in the present. Our data also suggest that in most Mediterranean ecosystems, large herbivore biomass is currently below the carrying capacity of the environment due to the relatively low diversity of the large herbivore guild in most recent communities. Although the carrying capacity was high at Atapuerca in the periods the area was occupied by humans, it was also high in other periods for which no evidence of human presence has been recorded. Thus, the relationship between human occupation of the territory and carrying capacity does not appear to be simple. © 2013 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69511
Appears in Collections:过去全球变化的重建

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作者单位: Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Paseo Sierra de Atapuerca s/n, 09002 Burgos, Spain; IPHES, Institut Català de Paleoecologia Humana i Evolució Social, c/Escorxador s/n, 43003 Tarragona, Spain; Àrea de Prehistòria, Universitat Rovira i Virgili (URV), Avinguda de Catalunya 35, 43002 Tarragona, Spain; Departamento de Matemáticas y Computación, Universidad de Burgos, Burgos, Spain; Grupo Aragosaurus-IUCA, Paleontología, Ciencias de la Tierra, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain

Recommended Citation:
Rodríguez J.,Blain H.-A.,Mateos A.,et al. Ungulate carrying capacity in Pleistocene Mediterranean ecosystems: Evidence from the Atapuerca sites[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2014-01-01,393
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