English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/63382
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Climatic drivers of hemispheric asymmetry in global patterns of ant species richness

AuthorsDunn, Robert R.; Agosti, D.; Andersen, A.N.; Arnan, Xavier; Brühl, C.A.; Cerdá, Xim ; Ellison, A.M.; Fisher, B.L.; Fitzpatrick, M.C.; Gibb, H.; Gotelli, N.J.; Gove, A.D.; Guénard, B.; Janda, M.; Kaspari, M.
Issue Date2009
PublisherBlackwell Publishing
CitationEcology Letters 12: 324- 333 (2009)
AbstractAlthough many taxa show a latitudinal gradient in richness, the relationship between latitude and species richness is often asymmetrical between the northern and southern hemispheres. Here we examine the latitudinal pattern of species richness across 1003 local ant assemblages. We find latitudinal asymmetry, with southern hemisphere sites being more diverse than northern hemisphere sites. Most of this asymmetry could be explained statistically by differences in contemporary climate. Local ant species richness was positively associated with temperature, but negatively (although weakly) associated with temperature range and precipitation. After contemporary climate was accounted for, a modest difference in diversity between hemispheres persisted, suggesting that factors other than contemporary climate contributed to the hemispherical asymmetry. The most parsimonious explanation for this remaining asymmetry is that greater climate change since the Eocene in the northern than in the southern hemisphere has led to more extinctions in the northern hemisphere with consequent effects on local ant species richness. © 2009 Blackwell Publishing Ltd/CNRS.
URIhttp://hdl.handle.net/10261/63382
DOI10.1111/j.1461-0248.2009.01291.x
Identifiersdoi: 10.1111/j.1461-0248.2009.01291.x
issn: 1461-023X
Appears in Collections:(EBD) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.