干旱区生态环境知识资源中心(Arid): Dung beetle conservation biogeography in southern Africa: current challenges and potential effects of climatic change

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DOI	10.1007/s10531-019-01904-7
	Dung beetle conservation biogeography in southern Africa: current challenges and potential effects of climatic change
	Davis, Adrian L. V.; Scholtz, Clarke H.
通讯作者	Davis, Adrian L. V.
来源期刊	BIODIVERSITY AND CONSERVATION
ISSN	0960-3115
EISSN	1572-9710
出版年	2020
卷号	29 期号:3 页码:667-693
英文摘要	Miocene, Pliocene and Pleistocene changes to the geomorphology, climate and vegetation of southern Africa are considered responsible for radical differences between southwest and northeast dung beetle assemblages (Coleoptera: Scarabaeidae: Scarabaeinae) leading to current endemism in Namibia, Botswana and South Africa. This bias is supported by distributional analysis of 437 species across vegetation regions and 2 degrees x 2 degrees squares of latitude and longitude using non-metric multidimensional scaling (NMDS) and minimum spanning trees (MST). The ordinal values for six NMDS dimensions showed significant correlations with annual rainfall, annual temperature, rainfall seasonality and altitude. Significant climatic differences were also shown between six regional centres defined and modelled for the subcontinent: winter/bimodal rainfall, southwest arid, southeast highlands, savanna, sandy savanna and east coast. Twenty-one, principal, subregional centres defined from further NMDS and MST analyses of regional data showed significant intra-regional differences in climatic attributes although published data suggest that soil, vegetation and dung type associations were frequent additional influences. Species showing the smallest ranges were centred primarily around the coast and bordering escarpments, which coincide with regions and subregions showing unique environmental conditions characterized by many endemic genera and species. Published land use data indicate that large parts of these regions are highly transformed or degraded, so that some species are facing strong current threats. Furthermore, published global climatic change data suggest that many endemic species could be further threatened, especially to the southwest where the late Cenozoic trend to unique climatic and environmental conditions could, potentially, be reversed in the future.
英文关键词	Climate change Conservation biogeography Dung beetles Scarabaeinae Southern Africa
类型	Article
语种	英语
国家	South Africa
收录类别	SCI-E
WOS记录号	WOS:000519084800001
WOS关键词	TROPHIC RESOURCE GRADIENT ; ASSEMBLAGE STRUCTURE ; COLEOPTERA SCARABAEIDAE ; HABITAT TRANSFORMATION ; PHYLOGENETIC ANALYSIS ; SUMMER RAINFALL ; CHANGE IMPACTS ; VEGETATION ; FOREST ; HISTORY
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314167
作者单位	Univ Pretoria, Invertebrate Systemat & Conservat Grp, Dept Zool & Entomol, P Bag X20, ZA-0028 Hatfield, South Africa
推荐引用方式 GB/T 7714	Davis, Adrian L. V.,Scholtz, Clarke H.. Dung beetle conservation biogeography in southern Africa: current challenges and potential effects of climatic change[J],2020,29(3):667-693.
APA	Davis, Adrian L. V.,&Scholtz, Clarke H..(2020).Dung beetle conservation biogeography in southern Africa: current challenges and potential effects of climatic change.BIODIVERSITY AND CONSERVATION,29(3),667-693.
MLA	Davis, Adrian L. V.,et al."Dung beetle conservation biogeography in southern Africa: current challenges and potential effects of climatic change".BIODIVERSITY AND CONSERVATION 29.3(2020):667-693.