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  5.     <title>UTas ePrints - Robustness of surrogates of biodiversity in marine benthic communities</title>
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  13.     <meta content="Magierowski, Regina H." name="eprints.creators_name" />
  14. <meta content="Johnson, Craig R." name="eprints.creators_name" />
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  21. <meta content="Robustness of surrogates of biodiversity in marine benthic communities
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  26. <meta content="biodiversity surrogates; diversity; Ecklonia radiata; kelp holdfasts; macrofauna; multivariate analyses; southern Australia; temporal variation; richness" name="eprints.keywords" />
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  28. <meta content="The usefulness of surrogates to estimate complex variables describing
  29. community structure, such as the various components of biodiversity, is long established.
  30. Most attention has been given to surrogates of species richness and species diversity and has
  31. focused on identifying a subset of taxa as a surrogate of total community richness or diversity.
  32. In adopting a surrogate measure, it is assumed that the relationship between the surrogate(s)
  33. and total richness or diversity is consistent in both space and time. These assumptions are
  34. rarely examined explicitly. We examined the robustness of potential surrogates of familial
  35. richness and multivariate community structure for macrofauna communities inhabiting
  36. artificial kelp holdfasts by comparing among communities of dissimilar ages and among
  37. communities established at different times of the year. This is important because most benthic
  38. &quot;landscapes&quot; will be a mosaic of patches reflecting different intensities, frequencies, and timing
  39. of disturbances. The total abundance of organisms and familial richness of crustaceans or
  40. polychaetes were all good predictors of total familial richness (R2 . 0.68). In contrast, while
  41. the familial richness of other groups, such as mollusks and echinoderms, were well correlated
  42. with total familial richness for communities at an early stage of development, the strength of
  43. these relationships declined with community age. For multivariate community structure,
  44. carefully selected subsets of ~10% of the total taxa yielded similar patterns to the total suite of
  45. taxa, irrespective of the age of the community. Thus, useful surrogates of both familial
  46. richness and multivariate community structure can be identified for this type of community.
  47. However, the choice of technique for selecting surrogate taxa largely depends on the nature of
  48. the pilot data available, and careful selection is required to ensure that surrogates perform
  49. consistently across different-aged communities. While the specific taxa selected as surrogates
  50. will vary among different communities, and possibly even among similar communities at
  51. different sites, the techniques and the concepts we address are applicable to any community
  52. type." name="eprints.abstract" />
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  276. <meta content="Magierowski, Regina H. and Johnson, Craig R. (2006) Robustness of surrogates of biodiversity in marine benthic communities. Ecological Applications, 16 (6). pp. 2264-2275." name="eprints.citation" />
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  279. <meta content="Robustness of surrogates of biodiversity in marine benthic communities
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  281. <meta content="Magierowski, Regina H." name="DC.creator" />
  282. <meta content="Johnson, Craig R." name="DC.creator" />
  283. <meta content="270702 Marine and Estuarine Ecology (incl. Marine Ichthyology)" name="DC.subject" />
  284. <meta content="The usefulness of surrogates to estimate complex variables describing
  285. community structure, such as the various components of biodiversity, is long established.
  286. Most attention has been given to surrogates of species richness and species diversity and has
  287. focused on identifying a subset of taxa as a surrogate of total community richness or diversity.
  288. In adopting a surrogate measure, it is assumed that the relationship between the surrogate(s)
  289. and total richness or diversity is consistent in both space and time. These assumptions are
  290. rarely examined explicitly. We examined the robustness of potential surrogates of familial
  291. richness and multivariate community structure for macrofauna communities inhabiting
  292. artificial kelp holdfasts by comparing among communities of dissimilar ages and among
  293. communities established at different times of the year. This is important because most benthic
  294. &quot;landscapes&quot; will be a mosaic of patches reflecting different intensities, frequencies, and timing
  295. of disturbances. The total abundance of organisms and familial richness of crustaceans or
  296. polychaetes were all good predictors of total familial richness (R2 . 0.68). In contrast, while
  297. the familial richness of other groups, such as mollusks and echinoderms, were well correlated
  298. with total familial richness for communities at an early stage of development, the strength of
  299. these relationships declined with community age. For multivariate community structure,
  300. carefully selected subsets of ~10% of the total taxa yielded similar patterns to the total suite of
  301. taxa, irrespective of the age of the community. Thus, useful surrogates of both familial
  302. richness and multivariate community structure can be identified for this type of community.
  303. However, the choice of technique for selecting surrogate taxa largely depends on the nature of
  304. the pilot data available, and careful selection is required to ensure that surrogates perform
  305. consistently across different-aged communities. While the specific taxa selected as surrogates
  306. will vary among different communities, and possibly even among similar communities at
  307. different sites, the techniques and the concepts we address are applicable to any community
  308. type." name="DC.description" />
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  422.     <h1 class="ep_tm_pagetitle">Robustness of surrogates of biodiversity in marine benthic communities</h1>
  423.     <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Magierowski, Regina H.</span> and <span class="person_name">Johnson, Craig R.</span> (2006) <xhtml:em>Robustness of surrogates of biodiversity in marine benthic communities.</xhtml:em> Ecological Applications, 16 (6). pp. 2264-2275.</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/1051/1/2006_Magierowski_%26_Johnson_Ecological_Applications.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/1051/1/2006_Magierowski_%26_Johnson_Ecological_Applications.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />155Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input value="1231" name="docid" accept-charset="utf-8" type="hidden" /><div class=""><input value="Request a copy" name="_action_null" class="ep_form_action_button" onclick="return EPJS_button_pushed( '_action_null' )" type="submit" /> </div></form></td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1890/1051-0761(2006)016[2264:ROSOBI]2.0.CO;2">http://dx.doi.org/10.1890/1051-0761(2006)016[2264:ROSOBI]2.0.CO;2</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">The usefulness of surrogates to estimate complex variables describing&#13;
  424. community structure, such as the various components of biodiversity, is long established.&#13;
  425. Most attention has been given to surrogates of species richness and species diversity and has&#13;
  426. focused on identifying a subset of taxa as a surrogate of total community richness or diversity.&#13;
  427. In adopting a surrogate measure, it is assumed that the relationship between the surrogate(s)&#13;
  428. and total richness or diversity is consistent in both space and time. These assumptions are&#13;
  429. rarely examined explicitly. We examined the robustness of potential surrogates of familial&#13;
  430. richness and multivariate community structure for macrofauna communities inhabiting&#13;
  431. artificial kelp holdfasts by comparing among communities of dissimilar ages and among&#13;
  432. communities established at different times of the year. This is important because most benthic&#13;
  433. "landscapes" will be a mosaic of patches reflecting different intensities, frequencies, and timing&#13;
  434. of disturbances. The total abundance of organisms and familial richness of crustaceans or&#13;
  435. polychaetes were all good predictors of total familial richness (R2 . 0.68). In contrast, while&#13;
  436. the familial richness of other groups, such as mollusks and echinoderms, were well correlated&#13;
  437. with total familial richness for communities at an early stage of development, the strength of&#13;
  438. these relationships declined with community age. For multivariate community structure,&#13;
  439. carefully selected subsets of ~10% of the total taxa yielded similar patterns to the total suite of&#13;
  440. taxa, irrespective of the age of the community. Thus, useful surrogates of both familial&#13;
  441. richness and multivariate community structure can be identified for this type of community.&#13;
  442. However, the choice of technique for selecting surrogate taxa largely depends on the nature of&#13;
  443. the pilot data available, and careful selection is required to ensure that surrogates perform&#13;
  444. consistently across different-aged communities. While the specific taxa selected as surrogates&#13;
  445. will vary among different communities, and possibly even among similar communities at&#13;
  446. different sites, the techniques and the concepts we address are applicable to any community&#13;
  447. type.</p></div><table style="margin-bottom: 1em" border="0" cellpadding="3" class="not_ep_block"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Additional Information:</th><td valign="top" class="ep_row">Copyright by the Ecological Society of America</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">biodiversity surrogates; diversity; Ecklonia radiata; kelp holdfasts; macrofauna; multivariate analyses; southern Australia; temporal variation; richness</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/270702.html">270000 Biological Sciences &gt; 270700 Ecology and Evolution &gt; 270702 Marine and Estuarine Ecology (incl. Marine Ichthyology)</a></td></tr><tr><th valign="top" class="ep_row">Collections:</th><td valign="top" class="ep_row">UNSPECIFIED</td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">1051</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Professor Craig R. Johnson</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">18 May 2007</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">04 Feb 2008 16:12</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=1051;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&amp;eprintid=1051">item control page</a></p>
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