Habitat heterogeneity in eelgrass fish assemblage diversity and turnover
ABSTRACT Maintaining habitat diversity and heterogeneity are key ecological elements of marine spatial planning. It is often assumed that patches of the same habitat harbour similar biological diversity. However, if habitat heterogeneity is high then the efficacy of habitats as surrogates of species...
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| Veröffentlicht in: | Aquatic conservation 2011-11, Vol.21 (7), p.625-635 |
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| creator | Robinson, Clifford L.K. Yakimishyn, Jennifer Dearden, Philip |
| description | ABSTRACT
Maintaining habitat diversity and heterogeneity are key ecological elements of marine spatial planning. It is often assumed that patches of the same habitat harbour similar biological diversity. However, if habitat heterogeneity is high then the efficacy of habitats as surrogates of species diversity is weakened.
Beta diversity variation in fish assemblages in eelgrass meadows along the Pacific coast of Canada was analysed using permutational multivariate analysis of variance and tests for dispersion of homogeneity. Variations in species composition were examined at an inter‐regional scale (100 s of km apart) and an intra‐regional scale (10s of km apart) over 7 years. Further, similarity percentage analysis and biological‐environmental modelling were used to identify factors that differentiated among fish assemblages. Beta diversity turnover was also considered by examining for the decay in fish assemblage similarity across gradients in sea surface temperature, salinity, and physical distance between pairs‐of‐meadows using linear regression.
Patches of eelgrass meadows exhibited high fish assemblage dissimilarity at both the intra‐regional and inter‐regional scales; spatial factors accounted for substantially more variation in fish composition than temporal factors. A large number of fish species (20–30) and different suites of environmental factors accounted for the observed high beta diversity variation. Fish composition similarity did not decay consistently within each region with physical distance between meadows or with a change of 1°C in temperature, but Jaccard similarity did decay significantly within each region by 2–4% per part per thousand change in salinity.
It is recommended that marine protected area planners consider the influence of freshwater flow into the coastal ocean and its subsequent impact on environmental gradients, which drives fish assemblage heterogeneity among eelgrass habitat patches.
Copyright © 2011 John Wiley & Sons, Ltd. |
| doi_str_mv | 10.1002/aqc.1227 |
| format | Article |
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Maintaining habitat diversity and heterogeneity are key ecological elements of marine spatial planning. It is often assumed that patches of the same habitat harbour similar biological diversity. However, if habitat heterogeneity is high then the efficacy of habitats as surrogates of species diversity is weakened.
Beta diversity variation in fish assemblages in eelgrass meadows along the Pacific coast of Canada was analysed using permutational multivariate analysis of variance and tests for dispersion of homogeneity. Variations in species composition were examined at an inter‐regional scale (100 s of km apart) and an intra‐regional scale (10s of km apart) over 7 years. Further, similarity percentage analysis and biological‐environmental modelling were used to identify factors that differentiated among fish assemblages. Beta diversity turnover was also considered by examining for the decay in fish assemblage similarity across gradients in sea surface temperature, salinity, and physical distance between pairs‐of‐meadows using linear regression.
Patches of eelgrass meadows exhibited high fish assemblage dissimilarity at both the intra‐regional and inter‐regional scales; spatial factors accounted for substantially more variation in fish composition than temporal factors. A large number of fish species (20–30) and different suites of environmental factors accounted for the observed high beta diversity variation. Fish composition similarity did not decay consistently within each region with physical distance between meadows or with a change of 1°C in temperature, but Jaccard similarity did decay significantly within each region by 2–4% per part per thousand change in salinity.
It is recommended that marine protected area planners consider the influence of freshwater flow into the coastal ocean and its subsequent impact on environmental gradients, which drives fish assemblage heterogeneity among eelgrass habitat patches.
Copyright © 2011 John Wiley & Sons, Ltd.</description><identifier>ISSN: 1052-7613</identifier><identifier>ISSN: 1099-0755</identifier><identifier>EISSN: 1099-0755</identifier><identifier>DOI: 10.1002/aqc.1227</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Ltd</publisher><subject>biodiversity ; conservation evaluation ; fish ; Freshwater ; Marine ; seagrass meadow</subject><ispartof>Aquatic conservation, 2011-11, Vol.21 (7), p.625-635</ispartof><rights>Copyright © 2011 John Wiley & Sons, Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3367-6e537eae60e978ef2716e997b1106e99fafbc4465a7be5ad2fc9880062a81743</citedby><cites>FETCH-LOGICAL-c3367-6e537eae60e978ef2716e997b1106e99fafbc4465a7be5ad2fc9880062a81743</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Faqc.1227$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Faqc.1227$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Robinson, Clifford L.K.</creatorcontrib><creatorcontrib>Yakimishyn, Jennifer</creatorcontrib><creatorcontrib>Dearden, Philip</creatorcontrib><title>Habitat heterogeneity in eelgrass fish assemblage diversity and turnover</title><title>Aquatic conservation</title><addtitle>Aquatic Conserv: Mar. Freshw. Ecosyst</addtitle><description>ABSTRACT
Maintaining habitat diversity and heterogeneity are key ecological elements of marine spatial planning. It is often assumed that patches of the same habitat harbour similar biological diversity. However, if habitat heterogeneity is high then the efficacy of habitats as surrogates of species diversity is weakened.
Beta diversity variation in fish assemblages in eelgrass meadows along the Pacific coast of Canada was analysed using permutational multivariate analysis of variance and tests for dispersion of homogeneity. Variations in species composition were examined at an inter‐regional scale (100 s of km apart) and an intra‐regional scale (10s of km apart) over 7 years. Further, similarity percentage analysis and biological‐environmental modelling were used to identify factors that differentiated among fish assemblages. Beta diversity turnover was also considered by examining for the decay in fish assemblage similarity across gradients in sea surface temperature, salinity, and physical distance between pairs‐of‐meadows using linear regression.
Patches of eelgrass meadows exhibited high fish assemblage dissimilarity at both the intra‐regional and inter‐regional scales; spatial factors accounted for substantially more variation in fish composition than temporal factors. A large number of fish species (20–30) and different suites of environmental factors accounted for the observed high beta diversity variation. Fish composition similarity did not decay consistently within each region with physical distance between meadows or with a change of 1°C in temperature, but Jaccard similarity did decay significantly within each region by 2–4% per part per thousand change in salinity.
It is recommended that marine protected area planners consider the influence of freshwater flow into the coastal ocean and its subsequent impact on environmental gradients, which drives fish assemblage heterogeneity among eelgrass habitat patches.
Copyright © 2011 John Wiley & Sons, Ltd.</description><subject>biodiversity</subject><subject>conservation evaluation</subject><subject>fish</subject><subject>Freshwater</subject><subject>Marine</subject><subject>seagrass meadow</subject><issn>1052-7613</issn><issn>1099-0755</issn><issn>1099-0755</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp10MFLwzAUBvAgCs4p-Cf06KUzaZqkOY7hVmEqytBjeO1et2jXbkmr7r-3ZaJ48PQ-Hj--w0fIJaMjRml0Dbt8xKJIHZEBo1qHVAlx3GcRhUoyfkrOvH-llGrJ5ICkKWS2gSZYY4OuXmGFttkHtgoQy5UD74PC-nXQBdxkJawwWNp3dL5XUC2DpnVV3T3OyUkBpceL7zski-nNYpKG84fZ7WQ8D3POpQolCq4QUFLUKsEiUkyi1ipjjPahgCLL41gKUBkKWEZFrpOEUhlBwlTMh-TqULt19a5F35iN9TmWJVRYt94wypSWsYz5L81d7b3Dwmyd3YDbd8j0W5luK9Nv1dHwQD9sift_nRk_Tv566xv8_PHg3oxUXAnzcj8zairSpzR-Nnf8C8-aedc</recordid><startdate>201111</startdate><enddate>201111</enddate><creator>Robinson, Clifford L.K.</creator><creator>Yakimishyn, Jennifer</creator><creator>Dearden, Philip</creator><general>John Wiley & Sons, Ltd</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7SN</scope><scope>7ST</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope><scope>SOI</scope></search><sort><creationdate>201111</creationdate><title>Habitat heterogeneity in eelgrass fish assemblage diversity and turnover</title><author>Robinson, Clifford L.K. ; Yakimishyn, Jennifer ; Dearden, Philip</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3367-6e537eae60e978ef2716e997b1106e99fafbc4465a7be5ad2fc9880062a81743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>biodiversity</topic><topic>conservation evaluation</topic><topic>fish</topic><topic>Freshwater</topic><topic>Marine</topic><topic>seagrass meadow</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Robinson, Clifford L.K.</creatorcontrib><creatorcontrib>Yakimishyn, Jennifer</creatorcontrib><creatorcontrib>Dearden, Philip</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Ecology Abstracts</collection><collection>Environment Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><jtitle>Aquatic conservation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Robinson, Clifford L.K.</au><au>Yakimishyn, Jennifer</au><au>Dearden, Philip</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Habitat heterogeneity in eelgrass fish assemblage diversity and turnover</atitle><jtitle>Aquatic conservation</jtitle><addtitle>Aquatic Conserv: Mar. Freshw. Ecosyst</addtitle><date>2011-11</date><risdate>2011</risdate><volume>21</volume><issue>7</issue><spage>625</spage><epage>635</epage><pages>625-635</pages><issn>1052-7613</issn><issn>1099-0755</issn><eissn>1099-0755</eissn><abstract>ABSTRACT
Maintaining habitat diversity and heterogeneity are key ecological elements of marine spatial planning. It is often assumed that patches of the same habitat harbour similar biological diversity. However, if habitat heterogeneity is high then the efficacy of habitats as surrogates of species diversity is weakened.
Beta diversity variation in fish assemblages in eelgrass meadows along the Pacific coast of Canada was analysed using permutational multivariate analysis of variance and tests for dispersion of homogeneity. Variations in species composition were examined at an inter‐regional scale (100 s of km apart) and an intra‐regional scale (10s of km apart) over 7 years. Further, similarity percentage analysis and biological‐environmental modelling were used to identify factors that differentiated among fish assemblages. Beta diversity turnover was also considered by examining for the decay in fish assemblage similarity across gradients in sea surface temperature, salinity, and physical distance between pairs‐of‐meadows using linear regression.
Patches of eelgrass meadows exhibited high fish assemblage dissimilarity at both the intra‐regional and inter‐regional scales; spatial factors accounted for substantially more variation in fish composition than temporal factors. A large number of fish species (20–30) and different suites of environmental factors accounted for the observed high beta diversity variation. Fish composition similarity did not decay consistently within each region with physical distance between meadows or with a change of 1°C in temperature, but Jaccard similarity did decay significantly within each region by 2–4% per part per thousand change in salinity.
It is recommended that marine protected area planners consider the influence of freshwater flow into the coastal ocean and its subsequent impact on environmental gradients, which drives fish assemblage heterogeneity among eelgrass habitat patches.
Copyright © 2011 John Wiley & Sons, Ltd.</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><doi>10.1002/aqc.1227</doi><tpages>11</tpages></addata></record> |
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| subjects | biodiversity conservation evaluation fish Freshwater Marine seagrass meadow |
| title | Habitat heterogeneity in eelgrass fish assemblage diversity and turnover |
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