2009年12月26日 星期六

一隻下半部已經長滿藤壺的亞達伯拉象龜被發現漂到740km以外的坦尚尼亞成為陸龜界首次成功跨洋性播遷記錄


文獻來源: Gerlach J, Muir C, Richmond MD. 2006. The first substantiated case of trans-oceanic tortoise dispersal. Journal of Natural History 40(41-43): 2403-2408.

Abstract
In December 2004 an Aldabra giant tortoise Dipsochelys dussumieri was washed ashore on the coast of east Africa, probably having been carried off the shore of Aldabra atoll, 740 km away. Although trans-oceanic dispersal is assumed to be the mechanism by which tortoises and many other animals became established on islands throughout the world, this is the first direct evidence of a tortoise surviving such a sea-crossing.