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Carbon storage in tropical forests correlates with taxonomic diversity and functional dominance on a global scale.

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Title: Carbon storage in tropical forests correlates with taxonomic diversity and functional dominance on a global scale.
Authors: Cavanaugh, Kyle C.1,2, Gosnell, J. Stephen3, Davis, Samantha L.3, Ahumada, Jorge4, Boundja, Patrick5, Clark, David B.6, Mugerwa, Badru7, Jansen, Patrick A.8,9, O'Brien, Timothy G.10, Rovero, Francesco11,12, Sheil, Douglas7,13,14, Vasquez, Rodolfo15, Andelman, Sandy4
Source: Global Ecology & Biogeography. May2014, Vol. 23 Issue 5, p563-573. 11p.
Subjects: Carbon sequestration in forests, Rain forests, Biodiversity, Dominance (Genetics), Forest ecology
Geographic Terms: Americas
Abstract: Aim We examined (1) the relationships between aboveground tropical forest C storage, biodiversity and environmental drivers and (2) how these relationships inform theory concerning ecosystem function and biodiversity. Experiments have shown that there is a positive relationship between biodiversity and ecosystem functioning, but intense debate exists on the underlying mechanisms. While some argue that mechanisms such as niche complementarity increase ecosystem function, others argue that these relationships are a selection effect. Location Eleven tropical forests in the Americas, Africa and Asia. Methods We analysed the correlates of biodiversity and carbon storage in tropical forests using data from 59 1-ha tree plots from a standardized global tropical forest biodiversity-monitoring network. We examined taxonomic and functional diversity, aboveground C storage and environmental variables in order to determine the relationships between biodiversity and carbon storage in natural (non-plantation) tropical forests. Results We found that aboveground C storage in tropical forests increased with both taxonomic diversity and functional dominance, specifically the dominance of genera with large maximum diameters, after potential environmental drivers were accounted for (final model R2 = 0.38, P < 0.001). Main conclusions Our results suggest that niche complementarity and the selection effect are not mutually exclusive: they both play a role in structuring tropical forests. While previous studies have documented relationships between diversity and C storage, these have largely been conducted on small scales in biomes that are relatively species poor compared with tropical forests (e.g. grasslands and temperate or boreal forests). Our results demonstrate that these positive biodiversity-ecosystem functioning relationships are also present in hyperdiverse systems on spatial scales relevant to conservation and management. This insight can be used to inform the conservation and management of tropical forests, which play a critical role in the global carbon cycle and are some of the biologically richest ecosystems on the planet. [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.)
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  Data: Carbon storage in tropical forests correlates with taxonomic diversity and functional dominance on a global scale.
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  Data: Aim We examined (1) the relationships between aboveground tropical forest C storage, biodiversity and environmental drivers and (2) how these relationships inform theory concerning ecosystem function and biodiversity. Experiments have shown that there is a positive relationship between biodiversity and ecosystem functioning, but intense debate exists on the underlying mechanisms. While some argue that mechanisms such as niche complementarity increase ecosystem function, others argue that these relationships are a selection effect. Location Eleven tropical forests in the Americas, Africa and Asia. Methods We analysed the correlates of biodiversity and carbon storage in tropical forests using data from 59 1-ha tree plots from a standardized global tropical forest biodiversity-monitoring network. We examined taxonomic and functional diversity, aboveground C storage and environmental variables in order to determine the relationships between biodiversity and carbon storage in natural (non-plantation) tropical forests. Results We found that aboveground C storage in tropical forests increased with both taxonomic diversity and functional dominance, specifically the dominance of genera with large maximum diameters, after potential environmental drivers were accounted for (final model R2 = 0.38, P &lt; 0.001). Main conclusions Our results suggest that niche complementarity and the selection effect are not mutually exclusive: they both play a role in structuring tropical forests. While previous studies have documented relationships between diversity and C storage, these have largely been conducted on small scales in biomes that are relatively species poor compared with tropical forests (e.g. grasslands and temperate or boreal forests). Our results demonstrate that these positive biodiversity-ecosystem functioning relationships are also present in hyperdiverse systems on spatial scales relevant to conservation and management. This insight can be used to inform the conservation and management of tropical forests, which play a critical role in the global carbon cycle and are some of the biologically richest ecosystems on the planet. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Global Ecology &amp; Biogeography is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder&#39;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.&lt;/i&gt; (Copyright applies to all Abstracts.)
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        Value: 10.1111/geb.12143
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        Text: English
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        PageCount: 11
        StartPage: 563
    Subjects:
      – SubjectFull: Carbon sequestration in forests
        Type: general
      – SubjectFull: Rain forests
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      – SubjectFull: Biodiversity
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      – SubjectFull: Dominance (Genetics)
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      – SubjectFull: Forest ecology
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      – SubjectFull: Americas
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      – TitleFull: Carbon storage in tropical forests correlates with taxonomic diversity and functional dominance on a global scale.
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              Text: May2014
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