%0 Journal Article
%T Patterns of exotic species richness of different taxonomic groups in a fragmented landscape of central Chile Patrones de riqueza de especies ex車ticas de diferentes grupos taxon車micos en un paisaje fragmentado de Chile central
%A Pablo I Becerra
%A Javier A Simonetti
%J Bosque (Valdivia)
%D 2013
%I Universidad Austral de Chile
%X Despite many studies have documented that fragmentation facilitates biological invasions, studies performed in different taxonomic groups have observed contrasting patterns. Unfortunately, the use of different ecosystems and fragmentation metrics among studies does not allow assessing the generality of the effect of fragmentation on invasion among different taxa. Studies evaluating the simultaneous responses of exotic species from different taxonomic groups to the same fragmentation patterns may help to assess generality of this relationship. Temperate forests in coastal central Chile are largely a suite of fragments of different sizes surrounded mainly (but not exclusively) by Pinus radiata plantations. Here, we evaluated exotic species richness of vascular plants, insects, mammals and birds in the coastal Maulino forest in a continuous native forest, fragments of native forest and Pinus radiata plantations. Species richness of exotic species of all taxa varied similarly across landscape units. Plantations presented the highest number of exotic species, followed by fragments and finally the continuous forest. In addition, regarding all exotic species, landscape units showed a nested pattern in which most exotic species present in the continuous forest were also present in fragments; and most species present in fragments were present in the pine plantation as well. Our results suggest that fragmentation may affect invasion of different taxa in a similar way, and that continuous forests may efficiently resist invasion. Our results also suggest that given that most of the native forest of south-central Chile is distributed in small fragments, it seems urgent to start an exotic species control to maintain their conservation value. A pesar de que varios estudios han observado que la fragmentaci車n del h芍bitat facilita la invasi車n de especies ex車ticas, trabajos realizados en distintos taxa han observado patrones diferentes. Lamentablemente, el uso de diferentes tipos de ecosistemas y m谷tricas de fragmentaci車n no permite establecer la generalidad del efecto de la fragmentaci車n en la invasi車n de diferentes taxa. Estudios que eval迆en simult芍neamente la respuesta de especies ex車ticas de diferentes grupos taxon車micos a los mismos patrones de fragmentaci車n podr赤an ayudar a establecer la generalidad de esta relaci車n. El bosque templado de la zona costera de Chile central est芍 compuesto de fragmentos de diferentes tama os rodeados principalmente (pero no exclusivamente) por plantaciones de Pinus radiata. En este trabajo se evalu車 la riqueza de especies ex車ticas de pla
%K plantas ex車ticas
%K mam赤feros ex車ticos
%K insectos ex車ticos
%K aves ex車ticas
%K fragmentaci車n
%K exotic plants
%K exotic mammals
%K exotic insects
%K exotic birds
%K fragmentation
%U http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002013000100006