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Predicting coral species richness: the effect of input variables, diversity and scale
Coral reefs are facing a biodiversity crisis due to increasing human impacts, consequently, one third of reef-building corals have an elevated risk of extinction. Logistic challenges prevent broad-scale species-level monitoring of hard corals; hence it has become critical that effective proxy indica...
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Published in: | PloS one 2014-01, Vol.9 (1), p.e83965-e83965 |
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description | Coral reefs are facing a biodiversity crisis due to increasing human impacts, consequently, one third of reef-building corals have an elevated risk of extinction. Logistic challenges prevent broad-scale species-level monitoring of hard corals; hence it has become critical that effective proxy indicators of species richness are established. This study tests how accurately three potential proxy indicators (generic richness on belt transects, generic richness on point-intercept transects and percent live hard coral cover on point-intercept transects) predict coral species richness at three different locations and two analytical scales. Generic richness (measured on a belt transect) was found to be the most effective predictor variable, with significant positive linear relationships across locations and scales. Percent live hard coral cover consistently performed poorly as an indicator of coral species richness. This study advances the practical framework for optimizing coral reef monitoring programs and empirically demonstrates that generic richness offers an effective way to predict coral species richness with a moderate level of precision. While the accuracy of species richness estimates will decrease in communities dominated by species-rich genera (e.g. Acropora), generic richness provides a useful measure of phylogenetic diversity and incorporating this metric into monitoring programs will increase the likelihood that changes in coral species diversity can be detected. |
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Logistic challenges prevent broad-scale species-level monitoring of hard corals; hence it has become critical that effective proxy indicators of species richness are established. This study tests how accurately three potential proxy indicators (generic richness on belt transects, generic richness on point-intercept transects and percent live hard coral cover on point-intercept transects) predict coral species richness at three different locations and two analytical scales. Generic richness (measured on a belt transect) was found to be the most effective predictor variable, with significant positive linear relationships across locations and scales. Percent live hard coral cover consistently performed poorly as an indicator of coral species richness. This study advances the practical framework for optimizing coral reef monitoring programs and empirically demonstrates that generic richness offers an effective way to predict coral species richness with a moderate level of precision. While the accuracy of species richness estimates will decrease in communities dominated by species-rich genera (e.g. Acropora), generic richness provides a useful measure of phylogenetic diversity and incorporating this metric into monitoring programs will increase the likelihood that changes in coral species diversity can be detected.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0083965</identifier><identifier>PMID: 24454712</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Animals ; Anthozoa - classification ; Anthozoa - genetics ; Balances (scales) ; Biodiversity ; Biodiversity conservation ; Biological monitoring ; Biology ; Coral reefs ; Corals ; Earth Sciences ; Ecosystem biology ; Ecosystems ; Extinction (Biology) ; Fishes ; Human influences ; Indicators ; Monitoring ; Museums ; Phylogeny ; Reefs ; Species diversity ; Species extinction ; Species richness ; Studies ; Taxonomy ; Trends</subject><ispartof>PloS one, 2014-01, Vol.9 (1), p.e83965-e83965</ispartof><rights>COPYRIGHT 2014 Public Library of Science</rights><rights>2014 Richards, Hobbs. 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Logistic challenges prevent broad-scale species-level monitoring of hard corals; hence it has become critical that effective proxy indicators of species richness are established. This study tests how accurately three potential proxy indicators (generic richness on belt transects, generic richness on point-intercept transects and percent live hard coral cover on point-intercept transects) predict coral species richness at three different locations and two analytical scales. Generic richness (measured on a belt transect) was found to be the most effective predictor variable, with significant positive linear relationships across locations and scales. Percent live hard coral cover consistently performed poorly as an indicator of coral species richness. This study advances the practical framework for optimizing coral reef monitoring programs and empirically demonstrates that generic richness offers an effective way to predict coral species richness with a moderate level of precision. 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Richards, Zoe T</au><au>Hobbs, Jean-Paul A</au><au>Rotjan, Randi D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Predicting coral species richness: the effect of input variables, diversity and scale</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2014-01-15</date><risdate>2014</risdate><volume>9</volume><issue>1</issue><spage>e83965</spage><epage>e83965</epage><pages>e83965-e83965</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Coral reefs are facing a biodiversity crisis due to increasing human impacts, consequently, one third of reef-building corals have an elevated risk of extinction. Logistic challenges prevent broad-scale species-level monitoring of hard corals; hence it has become critical that effective proxy indicators of species richness are established. This study tests how accurately three potential proxy indicators (generic richness on belt transects, generic richness on point-intercept transects and percent live hard coral cover on point-intercept transects) predict coral species richness at three different locations and two analytical scales. Generic richness (measured on a belt transect) was found to be the most effective predictor variable, with significant positive linear relationships across locations and scales. Percent live hard coral cover consistently performed poorly as an indicator of coral species richness. This study advances the practical framework for optimizing coral reef monitoring programs and empirically demonstrates that generic richness offers an effective way to predict coral species richness with a moderate level of precision. While the accuracy of species richness estimates will decrease in communities dominated by species-rich genera (e.g. Acropora), generic richness provides a useful measure of phylogenetic diversity and incorporating this metric into monitoring programs will increase the likelihood that changes in coral species diversity can be detected.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>24454712</pmid><doi>10.1371/journal.pone.0083965</doi><tpages>e83965</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Animals Anthozoa - classification Anthozoa - genetics Balances (scales) Biodiversity Biodiversity conservation Biological monitoring Biology Coral reefs Corals Earth Sciences Ecosystem biology Ecosystems Extinction (Biology) Fishes Human influences Indicators Monitoring Museums Phylogeny Reefs Species diversity Species extinction Species richness Studies Taxonomy Trends |
title | Predicting coral species richness: the effect of input variables, diversity and scale |
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