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Similar factors underlie tree abundance in forests in native and alien ranges

Similar factors underlie tree abundance in forests in native and alien ranges

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VAN DER SANDE, Masha T., Helge BRUELHEIDE, Wayne DAWSON, Jürgen DENGLER, Franz ESSL, Richard FIELD, Sylvia HAIDER, Mark VAN KLEUNEN, Holger KREFT, Joern PAGEL, 2020. Similar factors underlie tree abundance in forests in native and alien ranges. In: Global Ecology and Biogeography. Wiley. 29(2), pp. 281-294. ISSN 1466-822X. eISSN 1466-8238. Available under: doi: 10.1111/geb.13027

@article{vanderSande2020-02Simil-50534, title={Similar factors underlie tree abundance in forests in native and alien ranges}, year={2020}, doi={10.1111/geb.13027}, number={2}, volume={29}, issn={1466-822X}, journal={Global Ecology and Biogeography}, pages={281--294}, author={van der Sande, Masha T. and Bruelheide, Helge and Dawson, Wayne and Dengler, Jürgen and Essl, Franz and Field, Richard and Haider, Sylvia and van Kleunen, Mark and Kreft, Holger and Pagel, Joern} }

Kreft, Holger Similar factors underlie tree abundance in forests in native and alien ranges Dawson, Wayne 2020-08-19T11:47:59Z Field, Richard Dengler, Jürgen Haider, Sylvia van Kleunen, Mark van der Sande, Masha T. Essl, Franz van Kleunen, Mark Dawson, Wayne Bruelheide, Helge Kreft, Holger van der Sande, Masha T. Bruelheide, Helge Pagel, Joern Essl, Franz 2020-08-19T11:47:59Z 2020-02 Field, Richard Aim<br />Alien plant species can cause severe ecological and economic problems, and therefore attract a lot of research interest in biogeography and related fields. To identify potential future invasive species, we need to better understand the mechanisms underlying the abundances of invasive tree species in their new ranges, and whether these mechanisms differ between their native and alien ranges. Here, we test two hypotheses: that greater relative abundance is promoted by (a) functional difference from locally co‐occurring trees, and (b) higher values than locally co‐occurring trees for traits linked to competitive ability.<br /><br />Location<br />Global.<br /><br />Time period<br />Recent.<br /><br />Major taxa studied<br />Trees.<br /><br />Methods<br />We combined three global plant databases: sPlot vegetation‐plot database, TRY plant trait database and Global Naturalized Alien Flora (GloNAF) database. We used a hierarchical Bayesian linear regression model to assess the factors associated with variation in local abundance, and how these relationships vary between native and alien ranges and depend on species’ traits.<br /><br />Results<br />In both ranges, species reach highest abundance if they are functionally similar to co‐occurring species, yet are taller and have higher seed mass and wood density than co‐occurring species.<br /><br />Main conclusions<br />Our results suggest that light limitation leads to strong environmental and biotic filtering, and that it is advantageous to be taller and have denser wood. The striking similarities in abundance between native and alien ranges imply that information from tree species’ native ranges can be used to predict in which habitats introduced species may become dominant. Attribution 4.0 International Dengler, Jürgen Pagel, Joern Haider, Sylvia eng

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