{"id":4317,"date":"2020-07-09T08:43:10","date_gmt":"2020-07-09T06:43:10","guid":{"rendered":"https:\/\/ist.blogs.inrae.fr\/afs\/?p=4317"},"modified":"2020-07-09T08:43:10","modified_gmt":"2020-07-09T06:43:10","slug":"functional-distance-is-driven-more-strongly-by-environmental-factors-than-by-genetic-relatedness-in-juniperus-thurifera-l-expanding-forest-stands","status":"publish","type":"post","link":"https:\/\/ist.blogs.inrae.fr\/afs\/2020\/07\/09\/functional-distance-is-driven-more-strongly-by-environmental-factors-than-by-genetic-relatedness-in-juniperus-thurifera-l-expanding-forest-stands\/","title":{"rendered":"Functional distance is driven more strongly by environmental factors than by genetic relatedness in Juniperus thurifera L. expanding forest stands"},"content":{"rendered":"<script type='text\/javascript' src='https:\/\/d1bxh8uas1mnw7.cloudfront.net\/assets\/embed.js'><\/script><p align=\"justify\"><strong><a href=\"https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2020\/07\/Villellas2020.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4321 alignleft\" src=\"https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2020\/07\/Villellas2020-300x236.png\" alt=\"\" width=\"300\" height=\"236\" srcset=\"https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2020\/07\/Villellas2020-300x236.png 300w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2020\/07\/Villellas2020-768x605.png 768w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2020\/07\/Villellas2020-640x504.png 640w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2020\/07\/Villellas2020.png 776w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>Key message<\/strong><br \/>\nIn our study of colonisation of abandoned farmland by <em>Juniperus thurifera<\/em> L., environmental and geographic distances were stronger drivers of functional differentiation among trees than genetic distance and tree intrinsic features. However, these effects varied both along the colonisation gradient and across predictors\u2019 values, highlighting the complexity of the conditions under which functional diversity of forests is maximised.<\/p>\n<p align=\"justify\"><strong>Abstract<\/strong><br \/>\n<strong>Context<\/strong> Forest expansion after land abandonment is changing Mediterranean landscapes, but the underlying ecological and evolutionary processes remain poorly understood.<br \/>\n<strong>Aims<\/strong> We evaluated whether forest expansion reduces within-stand tree functional distances and whether its environmental, geographical and genetic drivers vary along the expansion gradient.<br \/>\n<strong>Methods<\/strong> We sampled <em>Juniperus thurifera<\/em> in mature, transition and expanding stands along a colonisation gradient in Spain. We measured functional traits, genetic relatedness, surrounding vegetation cover and intrinsic features (size, phytosanitary status) on trees. We calculated within-stand pairwise functional distances and quantified the effects of genetic relatedness, geographic distance, vegetation cover and intrinsic tree features.<br \/>\n<strong>Results<\/strong> Functional and genetic distances showed no consistent patterns along the expansion gradient. Functional distance was unrelated with genetic distance and strongly driven by geographic distance, likely representing unmeasured environmental factors. Vegetation cover and intrinsic tree features affected functional traits in transition and expanding stands. The effects on functional distance changed across predictors\u2019 values.<br \/>\n<strong>Conclusion<\/strong> The role of environmental and geographic factors on tree functional divergence varied along the farmland colonisation gradient, while we did not detect effects of genetic distance. Accounting for this context-dependence and for non-linear effects on functional traits can improve our understanding and management of forest expansions.<\/p>\n<p><strong>Keywords<\/strong><br \/>\nForest colonisation gradient, Founder effects, Functional traits, Kinship, Land-use changes, Neighbour effects<\/p>\n<div class='altmetric-embed' data-badge-type='donut' data-doi='10.1007\/s13595-020-00973-x'  style='float: right; ' ><\/div>\n<p><strong>Publication<\/strong><br \/>\nVillellas, J., Mart\u00edn-For\u00e9s, I., Mariette, S. et al. Functional distance is driven more strongly by environmental factors than by genetic relatedness in <em>Juniperus thurifera<\/em> L. expanding forest stands. Annals of Forest Science 77, 66 (2020). <a href=\"https:\/\/doi.org\/10.1007\/s13595-020-00973-x\">https:\/\/doi.org\/10.1007\/s13595-020-00973-x<\/a><\/p>\n<p><strong>For the read-only version of the full text:<\/strong><br \/>\n<a href=\"https:\/\/rdcu.be\/b5vd2\">https:\/\/rdcu.be\/b5vd2<\/a><\/p>\n<p><strong>Data availability<\/strong><br \/>\nThe functional and kinship datasets generated in the current study are available in doi: 10.20350\/digitalCSIC\/12519 (<a href=\"https:\/\/doi.org\/10.20350\/digitalCSIC\/12519\">https:\/\/doi.org\/10.20350\/digitalCSIC\/12519<\/a>). Information about molecular markers is available in Data INRAE repository: <a href=\"https:\/\/doi.org\/10.15454\/TRFS3H\">https:\/\/doi.org\/10.15454\/TRFS3H<\/a>.<\/p>\n<p><strong>Handling Editor<\/strong><br \/>\nRaquel Alfaro-S\u00e1nchez<\/p>\n<p><strong>Topical Collection<\/strong><br \/>\nThis article is part of the Topical Collection &#8220;<a href=\"https:\/\/link.springer.com\/journal\/13595\/topicalCollection\/AC_404bb9a8fc2d99eb2c8a92210ea416f0\"><em>Establishment of second-growth forests in human landscapes: ecological mechanisms and genetic consequences<\/em><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Key message In our study of colonisation of abandoned farmland by Juniperus thurifera L., environmental and geographic distances were stronger drivers of functional differentiation among trees than genetic distance and tree intrinsic features. However, these effects varied both along the colonisation gradient and across predictors\u2019 values, highlighting the complexity of the conditions under which functional [&hellip;]<\/p>\n","protected":false},"author":109,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,110,15,108],"tags":[],"class_list":["post-4317","post","type-post","status-publish","format-standard","hentry","category-article-type","category-data-in-repository","category-research-paper","category-special-issuetopical-collection","cat-14-id","cat-110-id","cat-15-id","cat-108-id"],"_links":{"self":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/4317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/users\/109"}],"replies":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/comments?post=4317"}],"version-history":[{"count":0,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/4317\/revisions"}],"wp:attachment":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/media?parent=4317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/categories?post=4317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/tags?post=4317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}