2 documents found, page 1 of 1
Habitat amount hypothesis and passive sampling explain mammal species compositi...
Rabelo, Rafael M.; Aragón, Susan; Bicca-Marques, Júlio César; Nelson, Bruce WalkerNested structures of species assemblages have been frequently associated with patch size and isolation, leading to the conclusion that colonization–extinction dynamics drives nestedness. The ‘passive sampling’ model states that the regional abundance of species randomly determines their occurrence in patches. The ‘habitat amount hypothesis’ also challenges patch size and isolation effects, arguing that they occ...
Biogeography of squirrel monkeys (genus Saimiri): South-central Amazon origin a...
Lynch Alfaro, Jessica W.; Boubli, Jean Philippe; Paim, Fernanda Pozzan; Ribas, Camila Cherem; Silva, Maria Nazareth Fda; Messias, Mariluce RezendeThe squirrel monkey, Saimiri, is a pan-Amazonian Pleistocene radiation. We use statistical phylogeographic methods to create a mitochondrial DNA-based timetree for 118 squirrel monkey samples across 68 localities spanning all Amazonian centers of endemism, with the aim of better understanding (1) the effects of rivers as barriers to dispersal and distribution; (2) the area of origin for modern Saimiri; (3) whet...