Regression analysis between independent contrasts of mean group size and mean number of inflection points

<p><b>Copyright information:</b></p><p>Taken from "Phylogenetic review of tonal sound production in whales in relation to sociality"</p><p>http://www.biomedcentral.com/1471-2148/7/136</p><p>BMC Evolutionary Biology 2007;7():136-136.</p><p>Published online 10 Aug 2007</p><p>PMCID:PMC2000896.</p><p></p> One conspicuous outlier (arrow) represents a contrast including the killer whale () which forms relatively small social groups but produces highly modulated whistles. It has been proposed that the killer whale uses whistles in a manner different from any other delphinid to indicate motivational state. That multiple factors are at work shaping tonal sounds in cetaceans may obscure and make difficult to discover true co-evolutinary histories of characters. Accordingly when is removed from the analysis the regression between the two characters becomes stronger

Primers used in three separate multiplexes for polymerase chain reactions.

<p>Primers in bold are those that provided useful results (i.e., successfully amplified, passed tests of Hardy Weinberg Equilibrium, linkage analysis and null alleles) and were used in relatedness analyses.</p>a<p><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0058162#pone.0058162-Nater1" target="_blank">[65]</a>,</p>b<p><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0058162#pone.0058162-Krtzen3" target="_blank">[66]</a>,</p>c<p><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0058162#pone.0058162-Shinohara1" target="_blank">[67]</a>,</p>d<p><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0058162#pone.0058162-Hoelzel1" target="_blank">[68]</a>,</p>e<p><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0058162#pone.0058162-Valsecchi1" target="_blank">[69]</a>.</p

Lower Florida Keys research area.

<p>Numbered zones within the study area include all navigable waters.</p

Association Index and relatedness values.

<p>Association Index values (Half-Weight Index <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0058162#pone.0058162-Rice1" target="_blank">[26]</a>) plotted against relatedness values for (a) leader-follower dolphin pairs and (b) non leader-follower pairs in the Lower Florida Keys (leader-follower: <i>n</i> = 57, <i>r_s = </i>0.55, <i>P</i><0.0001, non leader-follower: <i>n</i> = 81, <i>r_s = </i>0.07, <i>P = </i>0.51).</p

Differences in pairwise relatedness.

<p>Average differences in pairwise relatedness estimates <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0058162#pone.0058162-Rice1" target="_blank">[26]</a> across 18 loci generated from rarefaction analysis using RE-RAT <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0058162#pone.0058162-Queller1" target="_blank">[27]</a>.</p