<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>Carlos Garcia de Leaniz</dc:contributor>
  <dc:contributor>Gonzalo Gajardo</dc:contributor>
  <dc:contributor>Jason Dunham</dc:contributor>
  <dc:contributor>Guillermo Giannico</dc:contributor>
  <dc:contributor>Sofia Consegura</dc:contributor>
  <dc:creator>Delphine Vanhaecke</dc:creator>
  <dc:date>2015</dc:date>
  <dc:description>&lt;div id="jbi12568-sec-0001" class="section"&gt;
&lt;h4&gt;Aim&lt;/h4&gt;
&lt;div class="para"&gt;
&lt;p&gt;The ecological effects of biological invasions are well documented, but little is known about the effects of invaders on the genetic structure of native species. We examined the phylogeography, genetic variation and population structuring of two galaxiid fishes,&amp;nbsp;&lt;i&gt;Aplochiton zebra&lt;/i&gt;and&amp;nbsp;&lt;i&gt;A.&amp;nbsp;taeniatus&lt;/i&gt;, threatened by non-native salmonids, and whose conservation is complicated by misidentification and limited knowledge of their genetic diversity.&lt;/p&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div id="jbi12568-sec-0002" class="section"&gt;
&lt;h4&gt;Location&lt;/h4&gt;
&lt;div class="para"&gt;
&lt;p&gt;Chile and the Falkland Islands.&lt;/p&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div id="jbi12568-sec-0003" class="section"&gt;
&lt;h4&gt;Methods&lt;/h4&gt;
&lt;div class="para"&gt;
&lt;p&gt;We combined microsatellite and mitochondrial DNA (16S rDNA and COI) markers to compare genetic diversity, effective population size and gene flow of&amp;nbsp;&lt;i&gt;Aplochiton&lt;/i&gt;&amp;nbsp;spp. populations differentially affected by salmonid presence.&lt;/p&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div id="jbi12568-sec-0004" class="section"&gt;
&lt;h4&gt;Results&lt;/h4&gt;
&lt;div class="para"&gt;
&lt;p&gt;We identified two 16S rDNA haplotypes among&amp;nbsp;&lt;i&gt;A.&amp;nbsp;zebra&lt;/i&gt;&amp;nbsp;&amp;ndash; one dominant in coastal populations and another dominant in inland populations. Populations living on the island of Chilo&amp;eacute; displayed a mixture of coastal and inland haplotypes, as well as high microsatellite diversity, as one would expect if the island had been a refugium during the Last Glacial Maximum, or a contact zone among populations. Microsatellite data revealed strong population structuring, indicative of current isolation patterns, and a negative correlation between the genetic diversity of&amp;nbsp;&lt;i&gt;A.&amp;nbsp;zebra&lt;/i&gt;&amp;nbsp;and the relative abundance of invasive salmonids.&lt;/p&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div id="jbi12568-sec-0005" class="section"&gt;
&lt;h4&gt;Main conclusions&lt;/h4&gt;
&lt;div class="para"&gt;
&lt;p&gt;Our study indicates that population structuring of&amp;nbsp;&lt;i&gt;A.&amp;nbsp;zebra&lt;/i&gt;&amp;nbsp;reflects the influence of historical patterns of migration, but also the current levels of reduced gene flow among watersheds. Invasive salmonids, known to compete with and prey on native galaxiids, may have had negative impacts on the genetic diversity of&amp;nbsp;&lt;i&gt;Aplochiton&lt;/i&gt;&amp;nbsp;spp. The low genetic variation found in some populations, coupled with potential biases in abundance estimates due to species misidentification, highlight the urgent need for more research into the conservation status of the two species of&amp;nbsp;&lt;i&gt;Aplochiton&lt;/i&gt;.&lt;/p&gt;
&lt;/div&gt;
&lt;/div&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1111/jbi.12568</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Wiley</dc:publisher>
  <dc:title>Genetic signatures of historical dispersal of fish threatened by biological invasions: the case of galaxiids in South America</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>