Premium
The extent of extinctions of mammals on islands
Author(s) -
Alcover Josep Antoni,
Sans Antònia,
Palmer Miquel
Publication year - 1998
Publication title -
journal of biogeography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 158
eISSN - 1365-2699
pISSN - 0305-0270
DOI - 10.1046/j.1365-2699.1998.00246.x
Subject(s) - fauna , mammal , extinction (optical mineralogy) , biodiversity , ecology , endemism , geography , biology , natural (archaeology) , paleontology
Many of the world's oceanic and oceanic‐like islands possessed endemic mammal faunas before they were colonized by humans. These faunas, unbalanced and impoverished compared to continental faunas, usually lacked large mammalian carnivores. In virtually all cases, the arrival of humans and their domesticants and commensals on these islands is related to the extirpation of large numbers of endemic insular mammals. These extinction events affected at least 27% of autochthonous mammal species on the world's oceanic and oceanic‐like islands. This percentage rises the 35% when volant mammals are excluded. This reduction in the natural biodiversity brought about the disappearance of several unique biological types that apparently never existed on the continents.