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Article: Patterns and controlling factors of species diversity in the Arctic Ocean

TitlePatterns and controlling factors of species diversity in the Arctic Ocean
Authors
KeywordsArctic Ocean
Biodiversity
Deep Sea
Depth Diversity Gradients
Ecosystem
Latitudinal Diversity Gradients
Macroecology
Meiobenthos
Shallow Marine
Issue Date2012
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/JBI
Citation
Journal Of Biogeography, 2012, v. 39 n. 11, p. 2081-2088 How to Cite?
AbstractAim The Arctic Ocean is one of the last near-pristine regions on Earth, and, although human activities are expected to impact on Arctic ecosystems, we know very little about baseline patterns of Arctic Ocean biodiversity. This paper aims to describe Arctic Ocean-wide patterns of benthic biodiversity and to explore factors related to the large-scale species diversity patterns. Location Arctic Ocean. Methods We used large ostracode and foraminiferal datasets to describe the biodiversity patterns and applied comprehensive ecological modelling to test the degree to which these patterns are potentially governed by environmental factors, such as temperature, productivity, seasonality, ice cover and others. To test environmental control of the observed diversity patterns, subsets of samples for which all environmental parameters were available were analysed with multiple regression and model averaging. Results Well-known negative latitudinal species diversity gradients (LSDGs) were found in metazoan Ostracoda, but the LSDGs were unimodal with an intermediate maximum with respect to latitude in protozoan foraminifera. Depth species diversity gradients were unimodal, with peaks in diversity shallower than those in other oceans. Our modelling results showed that several factors are significant predictors of diversity, but the significant predictors were different among shallow marine ostracodes, deep-sea ostracodes and deep-sea foraminifera. Main conclusions On the basis of these Arctic Ocean-wide comprehensive datasets, we document large-scale diversity patterns with respect to latitude and depth. Our modelling results suggest that the underlying mechanisms causing these species diversity patterns are unexpectedly complex. The environmental parameters of temperature, surface productivity, seasonality of productivity, salinity and ice cover can all play a role in shaping large-scale diversity patterns, but their relative importance may depend on the ecological preferences of taxa and the oceanographic context of regions. These results suggest that a multiplicity of variables appear to be related to community structure in this system. © 2012 Blackwell Publishing Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/179327
ISSN
2015 Impact Factor: 3.997
2015 SCImago Journal Rankings: 2.807
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYasuhara, Men_US
dc.contributor.authorHunt, Gen_US
dc.contributor.authorVan Dijken, Gen_US
dc.contributor.authorArrigo, KRen_US
dc.contributor.authorCronin, TMen_US
dc.contributor.authorWollenburg, JEen_US
dc.date.accessioned2012-12-19T09:54:14Z-
dc.date.available2012-12-19T09:54:14Z-
dc.date.issued2012en_US
dc.identifier.citationJournal Of Biogeography, 2012, v. 39 n. 11, p. 2081-2088en_US
dc.identifier.issn0305-0270en_US
dc.identifier.urihttp://hdl.handle.net/10722/179327-
dc.description.abstractAim The Arctic Ocean is one of the last near-pristine regions on Earth, and, although human activities are expected to impact on Arctic ecosystems, we know very little about baseline patterns of Arctic Ocean biodiversity. This paper aims to describe Arctic Ocean-wide patterns of benthic biodiversity and to explore factors related to the large-scale species diversity patterns. Location Arctic Ocean. Methods We used large ostracode and foraminiferal datasets to describe the biodiversity patterns and applied comprehensive ecological modelling to test the degree to which these patterns are potentially governed by environmental factors, such as temperature, productivity, seasonality, ice cover and others. To test environmental control of the observed diversity patterns, subsets of samples for which all environmental parameters were available were analysed with multiple regression and model averaging. Results Well-known negative latitudinal species diversity gradients (LSDGs) were found in metazoan Ostracoda, but the LSDGs were unimodal with an intermediate maximum with respect to latitude in protozoan foraminifera. Depth species diversity gradients were unimodal, with peaks in diversity shallower than those in other oceans. Our modelling results showed that several factors are significant predictors of diversity, but the significant predictors were different among shallow marine ostracodes, deep-sea ostracodes and deep-sea foraminifera. Main conclusions On the basis of these Arctic Ocean-wide comprehensive datasets, we document large-scale diversity patterns with respect to latitude and depth. Our modelling results suggest that the underlying mechanisms causing these species diversity patterns are unexpectedly complex. The environmental parameters of temperature, surface productivity, seasonality of productivity, salinity and ice cover can all play a role in shaping large-scale diversity patterns, but their relative importance may depend on the ecological preferences of taxa and the oceanographic context of regions. These results suggest that a multiplicity of variables appear to be related to community structure in this system. © 2012 Blackwell Publishing Ltd.en_US
dc.languageengen_US
dc.publisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/JBIen_US
dc.relation.ispartofJournal of Biogeographyen_US
dc.subjectArctic Oceanen_US
dc.subjectBiodiversityen_US
dc.subjectDeep Seaen_US
dc.subjectDepth Diversity Gradientsen_US
dc.subjectEcosystemen_US
dc.subjectLatitudinal Diversity Gradientsen_US
dc.subjectMacroecologyen_US
dc.subjectMeiobenthosen_US
dc.subjectShallow Marineen_US
dc.titlePatterns and controlling factors of species diversity in the Arctic Oceanen_US
dc.typeArticleen_US
dc.identifier.emailYasuhara, M: yasuhara@hku.hken_US
dc.identifier.authorityYasuhara, M=rp01474en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1111/j.1365-2699.2012.02758.xen_US
dc.identifier.scopuseid_2-s2.0-84867714786en_US
dc.identifier.hkuros212860-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84867714786&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume39en_US
dc.identifier.issue11en_US
dc.identifier.spage2081en_US
dc.identifier.epage2088en_US
dc.identifier.eissn1365-2699-
dc.identifier.isiWOS:000310266600016-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridYasuhara, M=7102069020en_US
dc.identifier.scopusauthoridHunt, G=8502893500en_US
dc.identifier.scopusauthoridvan Dijken, G=6506169205en_US
dc.identifier.scopusauthoridArrigo, KR=55152703400en_US
dc.identifier.scopusauthoridCronin, TM=7102710042en_US
dc.identifier.scopusauthoridWollenburg, JE=6602224595en_US

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