Abstract：
:The dwarfing of large mammals on islands occurred repeatedly in the Pleistocene. Elephants, deer, hippopotami and other species became dwarfed on islands in Indonesia, the Mediterranean, the east Pacific and elsewhere. In most cases, the full-sized ancestral form can be recognized among the adjacent mainland fauna, but evolutionary rates cannot be estimated because the entry of the ancestor onto the island, and appearance of the dwarf form, are poorly dated. Here I give the first example in which the island dwarf is well dated, the full-sized ancestor is found in demonstrably older deposits on the island, and a good estimate can be made for the duration of the isolation leading to dwarfing. In the Last Interglacial, red deer on Jersey, Channel Islands, became reduced to one sixth of their body weight in less than six thousand years.
journal_name
Naturejournal_title
Natureauthors
Lister AMdoi
10.1038/342539a0subject
Has Abstractpub_date
1989-11-30 00:00:00pages
539-42issue
6249eissn
0028-0836issn
1476-4687journal_volume
342pub_type
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