Increased taxonomic and functional similarity does not increase the trophic similarity of communities.
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| Title: | Increased taxonomic and functional similarity does not increase the trophic similarity of communities. |
|---|---|
| Authors: | Pool, Thomas K.1,2, Cucherousset, Julien1,2, Boulêtreau, Stéphanie1,2, Villéger, Sébastien3, Strecker, Angela L.4, Grenouillet, Gaël1,2 |
| Source: | Global Ecology & Biogeography. Jan2016, Vol. 25 Issue 1, p46-54. 9p. |
| Subjects: | Biodiversity, Biogeography, Ecological niche, Prediction models, Multiple regression analysis |
| Geographic Terms: | North America |
| Abstract: | Aim Despite a long-standing research interest in the association between the biodiversity (i.e. taxonomic and functional composition) and trophic structure of communities, our understanding of the relationship remains limited. Community assembly theory predicts that niche partitioning will result in communities with a diverse array of functional traits, which in turn may facilitate a correspondingly diverse array of trophic interactions that define the trophic niche of those communities. The aim of our study is to test this prediction. Location North America. Methods We built a database composed of functional traits and stable isotope values (δ13C and δ15N) for 63 freshwater fish communities containing 109 species in 34 lentic and 29 lotic ecosystems. First, using linear mixed models (i.e. an alpha-diversity approach), we tested whether the taxonomic diversity of communities was positively associated with their functional diversity and if their functional diversity was positively associated with their trophic diversity. Second, we assessed the taxonomic, functional and trophic similarity of communities using multiple regression on distance matrices (MRM) and their respective 'turnover' and 'nestedness-resultant' components to test if the taxonomic similarity of communities was positively correlated with their functional similarity and if their functional similarity was positively associated with their trophic similarity (i.e. a beta-diversity approach). Results We found that the functional diversity of communities increased as their taxonomic diversity increased. Similarly, the trophic diversity of communities increased as their functional diversity increased. The pairwise taxonomic and functional similarity of communities were also positively associated, but there was a weak relationship between the functional and trophic similarities of communities. Main conclusions Our study demonstrates that communities with similar functional characteristics can have disparate food web structures, suggesting that additional site-specific factors influence community variation in trophic niche geometry. Determining the relative importance of functional characteristics and site-specific factors in shaping trophic interactions is crucial for a better understanding of how future species loss and species introductions will affect food web structure and ecosystem functioning. [ABSTRACT FROM AUTHOR] |
| Copyright of Global Ecology & Biogeography is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 111925117 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Increased taxonomic and functional similarity does not increase the trophic similarity of communities. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Pool%2C+Thomas+K%2E%22">Pool, Thomas K.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Cucherousset%2C+Julien%22">Cucherousset, Julien</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Boulêtreau%2C+Stéphanie%22">Boulêtreau, Stéphanie</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Villéger%2C+Sébastien%22">Villéger, Sébastien</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Strecker%2C+Angela+L%2E%22">Strecker, Angela L.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Grenouillet%2C+Gaël%22">Grenouillet, Gaël</searchLink><relatesTo>1,2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Global+Ecology+%26+Biogeography%22">Global Ecology & Biogeography</searchLink>. Jan2016, Vol. 25 Issue 1, p46-54. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Biodiversity%22">Biodiversity</searchLink><br /><searchLink fieldCode="DE" term="%22Biogeography%22">Biogeography</searchLink><br /><searchLink fieldCode="DE" term="%22Ecological+niche%22">Ecological niche</searchLink><br /><searchLink fieldCode="DE" term="%22Prediction+models%22">Prediction models</searchLink><br /><searchLink fieldCode="DE" term="%22Multiple+regression+analysis%22">Multiple regression analysis</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22North+America%22">North America</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Aim Despite a long-standing research interest in the association between the biodiversity (i.e. taxonomic and functional composition) and trophic structure of communities, our understanding of the relationship remains limited. Community assembly theory predicts that niche partitioning will result in communities with a diverse array of functional traits, which in turn may facilitate a correspondingly diverse array of trophic interactions that define the trophic niche of those communities. The aim of our study is to test this prediction. Location North America. Methods We built a database composed of functional traits and stable isotope values (δ13C and δ15N) for 63 freshwater fish communities containing 109 species in 34 lentic and 29 lotic ecosystems. First, using linear mixed models (i.e. an alpha-diversity approach), we tested whether the taxonomic diversity of communities was positively associated with their functional diversity and if their functional diversity was positively associated with their trophic diversity. Second, we assessed the taxonomic, functional and trophic similarity of communities using multiple regression on distance matrices (MRM) and their respective 'turnover' and 'nestedness-resultant' components to test if the taxonomic similarity of communities was positively correlated with their functional similarity and if their functional similarity was positively associated with their trophic similarity (i.e. a beta-diversity approach). Results We found that the functional diversity of communities increased as their taxonomic diversity increased. Similarly, the trophic diversity of communities increased as their functional diversity increased. The pairwise taxonomic and functional similarity of communities were also positively associated, but there was a weak relationship between the functional and trophic similarities of communities. Main conclusions Our study demonstrates that communities with similar functional characteristics can have disparate food web structures, suggesting that additional site-specific factors influence community variation in trophic niche geometry. Determining the relative importance of functional characteristics and site-specific factors in shaping trophic interactions is crucial for a better understanding of how future species loss and species introductions will affect food web structure and ecosystem functioning. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Global Ecology & Biogeography is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/geb.12384 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 46 Subjects: – SubjectFull: Biodiversity Type: general – SubjectFull: Biogeography Type: general – SubjectFull: Ecological niche Type: general – SubjectFull: Prediction models Type: general – SubjectFull: Multiple regression analysis Type: general – SubjectFull: North America Type: general Titles: – TitleFull: Increased taxonomic and functional similarity does not increase the trophic similarity of communities. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Pool, Thomas K. – PersonEntity: Name: NameFull: Cucherousset, Julien – PersonEntity: Name: NameFull: Boulêtreau, Stéphanie – PersonEntity: Name: NameFull: Villéger, Sébastien – PersonEntity: Name: NameFull: Strecker, Angela L. – PersonEntity: Name: NameFull: Grenouillet, Gaël IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 1466822X Numbering: – Type: volume Value: 25 – Type: issue Value: 1 Titles: – TitleFull: Global Ecology & Biogeography Type: main |
| ResultId | 1 |
