干旱区生态环境知识资源中心(Arid): Climate-inferred distribution estimates of mid-to-late Pliocene hominins

Arid

DOI	10.1016/j.gloplacha.2022.103756
	Climate-inferred distribution estimates of mid-to-late Pliocene hominins
	Gibert, Corentin; Vignoles, Anais; Contoux, Camille; Banks, William E.; Barboni, Doris; Boisserie, Jean-Renaud; Chavasseau, Olivier; Fluteau, Frederic; Guy, Franck; Nous, Camille; Otero, Olga; Sepulchre, Pierre; Souron, Antoine; Ramstein, Gilles
通讯作者	Gibert, C
来源期刊	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
EISSN	1872-6364
出版年	2022
卷号	210
英文摘要	During the mid-to-late Pliocene (ca. 4-3 Ma), several hominin species were present in central Sahel, eastern and southern Africa. The potential for the discovery of hominin remains from this interval is limited by the availability of exposed Pliocene deposits and the ability to investigate them. As a result, most discoveries have been made in the Afar region of Ethiopia and in the Lake Turkana basin, thus unveiling only a portion of Pliocene hominins' probable geographical presence. In this study we provide a continental view of geographic areas potentially accessible to these hominins. To do so, we estimate the climatic envelope suitable for mid-to-late Pliocene hominin presence, using the earth system model IPSL-CM5A and the Maxent habitat suitability algorithm. Our analysis reveals high habitat suitability for these hominin species in semi-arid regions where annual thermal amplitude and mean annual precipitation are moderate, mostly corresponding to tropical xerophytic shrublands. Our habitat model estimates geographically continuous, suitable climatic conditions for hominins between central Sahel and northeastern Africa, but not between eastern and southern Africa. This discontinuity suggests that southern African and eastern African hominins were separated by an environmental barrier that could only be crossed during particularly favourable periods or by undertaking long-range dispersal over climatically hostile habitats. Under climate conditions of northern hemisphere summer at perihelion this climatic barrier is not present. In contrast, the Turkana basin, the Laetoli region, and a large part of southern Africa remain suitable for all precession angles, suggesting that these areas may have functioned as refugia. The constant presence of these stable areas combined with the periodic establishment of corridors for dispersion can potentially explain hominin diversity in eastern Africa.
英文关键词	Habitat suitability model Niche modeling Australopithecus Africa Pliocene Dispersal
类型	Article
语种	英语
开放获取类型	Green Submitted, Bronze
收录类别	SCI-E
WOS记录号	WOS:000820173300003
WOS关键词	PLIOMIP EXPERIMENTAL-DESIGN ; ECOLOGICAL NICHE MODELS ; LAST GLACIAL MAXIMUM ; SPECIES DISTRIBUTIONS ; AUSTRALOPITHECUS-BAHRELGHAZALI ; ENVIRONMENTAL CONTEXT ; WORANSO-MILLE ; WEST TURKANA ; RIFT-VALLEY ; WOODY COVER
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392965
推荐引用方式 GB/T 7714	Gibert, Corentin,Vignoles, Anais,Contoux, Camille,et al. Climate-inferred distribution estimates of mid-to-late Pliocene hominins[J],2022,210.
APA	Gibert, Corentin.,Vignoles, Anais.,Contoux, Camille.,Banks, William E..,Barboni, Doris.,...&Ramstein, Gilles.(2022).Climate-inferred distribution estimates of mid-to-late Pliocene hominins.GLOBAL AND PLANETARY CHANGE,210.
MLA	Gibert, Corentin,et al."Climate-inferred distribution estimates of mid-to-late Pliocene hominins".GLOBAL AND PLANETARY CHANGE 210(2022).