{"id":1527,"date":"2026-02-03T13:26:17","date_gmt":"2026-02-03T13:26:17","guid":{"rendered":"https:\/\/uni.hi.is\/apalsson\/?p=1527"},"modified":"2026-02-03T13:26:17","modified_gmt":"2026-02-03T13:26:17","slug":"two-new-papers","status":"publish","type":"post","link":"https:\/\/uni.hi.is\/apalsson\/2026\/02\/03\/two-new-papers\/","title":{"rendered":"Two new papers"},"content":{"rendered":"<p>Two manuscripts on Arctic charr were published in January. Gu\u00f0bj\u00f6rg \u00d3sk J\u00f3nsd\u00f3ttir, analyzed teeth variation in the sympatric morphs in \u00deingvallavatn, out in Evolutionary biology.<\/p>\n<p>J\u00f3nsd\u00f3ttir, G.\u00d3., Ingimarsson, F., Snorrason, S.S.\u00a0<i>et al.<\/i> 2026 Variation of Tooth Traits in Ecologically Specialized and Sympatric Morphs. <i>Evolutionary Biology<\/i>. <a href=\"https:\/\/doi.org\/10.1007\/s11692-026-09665-2\">https:\/\/doi.org\/10.1007\/s11692-026-09665-2\u00a0<\/a><\/p>\n<p>Following up on work by Finnur Ingimarsson she describes allometry of teeth numbers, and differences by bones and morphs.<a href=\"https:\/\/uni.hi.is\/apalsson\/files\/2026\/02\/11692_2026_9665_Fig4_HTML.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-1528\" src=\"https:\/\/uni.hi.is\/apalsson\/files\/2026\/02\/11692_2026_9665_Fig4_HTML-300x253.png\" alt=\"\" width=\"300\" height=\"253\" srcset=\"https:\/\/uni.hi.is\/apalsson\/files\/2026\/02\/11692_2026_9665_Fig4_HTML-300x253.png 300w, https:\/\/uni.hi.is\/apalsson\/files\/2026\/02\/11692_2026_9665_Fig4_HTML.png 685w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a> Influence of size and morph on number of teeth varied by bone. The scatterplots show individual tooth numbers (Y-axis) against size (ln(FL in cm) X-axis) for the four morphs and six bones; <b>A<\/b>\u00a0dentary,\u00a0<b>B<\/b>\u00a0maxilla,\u00a0<b>C<\/b>\u00a0premaxilla,\u00a0<b>D<\/b>\u00a0palatine,\u00a0<b>E<\/b>\u00a0vomer and\u00a0<b>F<\/b>\u00a0glossohyal. Note the numbers for symmetric bones (<b>A\u2013D<\/b>) are averages for the left and right bones. Each plot shows p values from glmmTMB for the effect of morph (M), body size (FL) and morph by body size (M\u2009\u00d7\u2009FL) on tooth number.<\/p>\n<p>The other paper is by Han Xiao, also on the same morphs, in Molecular Ecology. He also included the mysterious fish from the downstream lake \u00dalflj\u00f3tsvatn, and found some very cool differences in genetic composition.<\/p>\n<p><span class=\"author\">Xiao,\u00a0H.<\/span>,\u00a0<span class=\"author\">A. P\u00e1lsson<\/span>,\u00a0<span class=\"author\">Z. O. J\u00f3nsson<\/span>, and\u00a0<span class=\"author\">S. S. Snorrason<\/span>.\u00a0<span class=\"pubYear\">2026<\/span>. \u201c\u00a0<span class=\"articleTitle\">Gene Flow and Habitat Heterogeneity Shape Coexistence Dynamics of Arctic Charr Morphs in Connected Lakes<\/span>.\u201d\u00a0<i class=\"journalTitle\">Molecular Ecology<\/i>\u00a0<span class=\"vol\">35<\/span>, no.\u00a0<span class=\"citedIssue\">2<\/span>: e70225.\u00a0<a class=\"linkBehavior\" href=\"https:\/\/doi.org\/10.1111\/mec.70225\">https:\/\/doi.org\/10.1111\/mec.70225<\/a>.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Two manuscripts on Arctic charr were published in January. Gu\u00f0bj\u00f6rg \u00d3sk J\u00f3nsd\u00f3ttir, analyzed teeth variation in the sympatric morphs in \u00deingvallavatn, out in Evolutionary biology. J\u00f3nsd\u00f3ttir, G.\u00d3., Ingimarsson, F., Snorrason, S.S.\u00a0et al. 2026 Variation of Tooth Traits in Ecologically Specialized &hellip; <a href=\"https:\/\/uni.hi.is\/apalsson\/2026\/02\/03\/two-new-papers\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":132,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[209],"tags":[],"class_list":["post-1527","post","type-post","status-publish","format-standard","hentry","category-publications"],"_links":{"self":[{"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/posts\/1527","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/users\/132"}],"replies":[{"embeddable":true,"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/comments?post=1527"}],"version-history":[{"count":1,"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/posts\/1527\/revisions"}],"predecessor-version":[{"id":1529,"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/posts\/1527\/revisions\/1529"}],"wp:attachment":[{"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/media?parent=1527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/categories?post=1527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/tags?post=1527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}