globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2017.04.006
Scopus记录号: 2-s2.0-85017241883
论文题名:
Resource availability and competition intensity in the carnivore guild of the Early Pleistocene site of Venta Micena (Orce, Baza Basin, SE Spain)
作者: Rodríguez-Gómez G.; Palmqvist P.; Ros-Montoya S.; Espigares M.P.; Martínez-Navarro B.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 164
起始页码: 154
结束页码: 167
语种: 英语
英文关键词: Early pleistocene ; Large mammals ; Leslie matrices ; Orce ; Paleoecology
Scopus关键词: Biomass ; Estimation ; Mammals ; Early pleistocene ; Large mammals ; Leslie matrices ; Orce ; Paleoecology ; Ecology ; Mammalia ; Ungulata
英文摘要: With an age of ∼1.6–1.5 Ma, the Early Pleistocene site of Venta Micena (Orce, Baza Basin, SE Spain) has provided the large mammals assemblage of Late Villafranchian age with higher preservational completeness in Western Europe and offers a unique opportunity to analyze the food webs of the mammalian paleocommunity before the first human arrival in this continent. Taphonomic analysis of the fossil assemblage has shown evidence of carnivore involvement, particularly hyenas, in the bone accumulating process. In this study we use a mathematical approach based on Leslie matrices to quantify the biomass of ungulates available to the members of the carnivore guild as well as the pattern of resource partitioning and competition intensity among them. The results obtained show that although the biomass of primary consumers available to the secondary consumers was lower than the value expected under optimal conditions, more than half the individuals and biomass of carnivores expected would be reached, which allowed a viable ecosystem in Venta Micena. In fact, the biomass available for the members of the carnivore guild is 25–30% greater than the estimates obtained for two nearby sites, Barranco León-D and Fuente Nueva-3, which are somewhat younger (∼1.4 Ma) and preserve the oldest evidence on human presence in this region. Given that the competition intensity estimated in the carnivore guild of Venta Micena was lower than in the latter sites, this suggests that the timing of the first human dispersal in Western Europe was probably not a matter of ecological opportunity. © 2017 Elsevier Ltd
资助项目: This work is part of a project authorized and funded by the ‘Consejería de Educación, Cultura y Deportes’ of the Junta de Andalucía (contract Exp.B090678SV18BC) and has also been supported by projects CGL2016-78577-P and CGL2016-80975-P of the Spanish Ministry of Economy and Competitiveness, project P11-HUM-7248 from Junta de Andalucía, grant HAR2010-19957/HIST, and Generalitat de Catalunya, grant SGR2014-901. We also thank J.M. Jiménez-Arenas, archaeological director of the Venta Micena excavations during the years 2014 and 2015. And, last but not least, we gratefully acknowledge the insightful comments provided by two reviewers.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59247
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 3, Burgos, Spain; Departamento de Ecología y Geología, Universidad de Málaga, Campus de Teatinos, Malaga, Spain; IPHES, Institut Català de Paleoecologia Humana i Evolució Social, C/ Marcel.lí Domingo S/n, Campus Sescelades, Edifici W3, Tarragona, Spain; Area de Prehistoria, Universitat Rovira i Virgili (URV), Avda. Catalunya 35, Tarragona, Spain; ICREA, Pg. Lluís Companys 23, Barcelona, Spain

Recommended Citation:
Rodríguez-Gómez G.,Palmqvist P.,Ros-Montoya S.,et al. Resource availability and competition intensity in the carnivore guild of the Early Pleistocene site of Venta Micena (Orce, Baza Basin, SE Spain)[J]. Quaternary Science Reviews,2017-01-01,164
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