El rol de Turdusfalcklandii (Aves: Passeriforme) como dispersor de plantas invasoras en el archipiélago de Juan Fernández

Population status of the tree Sacoglottis holdridgei (Humiriaceae) at Isla del Coco National Park, Costa Rica

“…Also, these species are characterized by a high seed production, sites colonization, fast growth, and dispersion favored by birds. Homologous way, the mentioned factors have determined the development of Rubus ulmifolius (Rosaceae) and Aristotelia chilensis (Eleocarpaceae) in Robinson Crusoe Island and changed the structure and composition of the forest (Smith- Ramírez et al, 2013). This could be happening in Isla del Coco.…”

“…Impacts on ecosystems, native flora and fauna of islands, as a result of actions made by humans including species introduction have been extensively studied (Green, O'Dowd, & Lake, 1997;Donlan et al, 2000;O'Dowd, Green, & Lake, 2003;Smith-Ramírez et al, 2013). However, the effects of species introduction on Isla del Coco are poorly investigated.…”

Crecimiento radial de la especie endémica Nothomyrcia fernandeziana (Hook. & Arn.) Kausel y la invasora Aristotelia chilensis (Molina) Stuntz en la isla Robinson Crusoe, Archipiélago de Juan Fernández, Chile

“…(Greimler et al 2002, Vargas et al 2010a, 2010b, donde N. fernandeziana es la especie más frecuente (800 árboles ha -1 ) y con mayor mortalidad (45 árboles ha -1 ) (Vargas et al 2010a). La dinámica de claros producto de la caída de árboles dominantes es el principal factor que promueve la regeneración de las especies arbóreas, pero da lugar a la invasión de especies exóticas intolerantes a la sombra como A. chilensis, que compiten con las especies endémicas por su nicho de regeneración (Smith-Ramírez et al 2013).…”

Tree regeneration in the threatened forest of Robinson Crusoe Island, Chile: The role of small-scale disturbances on microsite conditions and invasive species

“…Rubus ulmifolius (Rosaceae) and Aristotelia chilensis (Eleocarpaceae) are aggressive invaders and threaten the montane forest ecosystem (Greimler, Lopez et al, 2002). Annually both species produce a large number of fleshy fruits (containing small seeds <6 mm diameter; Hoffmann, 1992) that are disseminated by native birds, gravity and wind (Smith-Ramirez et al, 2013). These species can also spread asexually and establish more quickly than native tree species in forest gaps .…”