Environment and dispersal paths override life strategies and residence time in determining regional patterns of invasion by alien plants

摘要: Abstract We describe a novel dissimilarity framework to analyze spatial patterns of species diversity and illustrate it with alien plant invasions in Northern Portugal. used this test the hypothesis that invasive richness composition are differently affected by differences climate, land use landscape connectivity ( i.e. Geographic distance as proxy vectorial objects facilitate dispersal such roads rivers) between pairs localities at regional scale. further evaluated possible effects life strategies (Grime's C-S-R) residence time. Each locality consisted 1 km 2 mosaic which all were recorded visiting habitat types. Multi-model inference revealed is more influenced environmental (particularly climate), whereas geographic (proxies for limitations) important explain composition, prevailing role ecotones roads. However, only minor found responses three C-S-R strategies. Some effect time was found, but richness. Our results also indicated conditions e.g. climate conditions) limit number invading given site, presence corridors determines paths invasion therefore pool reaching each site. As distances roads) tend our scale highlights need consider management context integrated planning. Alien should include (but not be limited to) mitigation pathways along linear infrastructures. highlight potentially useful applications multimodel anticipation invasions.