Open AccessBiogeography of the Indonesian archipelago: mitochondrial DNA variation in the fruit bat, Eonycteris spelaea
Author(s) -
Hisheh Susan,
Westerman Michael,
Schmitt Lincoln H.
Publication year - 1998
Publication title -
biological journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.906
H-Index - 112
eISSN - 1095-8312
pISSN - 0024-4066
DOI - 10.1111/j.1095-8312.1998.tb01145.x
Subject(s) - biology , cline (biology) , mitochondrial dna , haplogroup , archipelago , phylogeography , zoology , biogeography , evolutionary biology , genetic variation , ecology , haplotype , phylogenetics , genetics , population , genotype , demography , sociology , gene
The fruit bat, Eonycteris spelaea , occurs from India through the Philippines to the southeast limit of its distribution in the Lesser Sunda islands of Indonesia. Mitochondrial DNA (mtDNA) variation was examined in Indonesian E. spelaea island populations by amplification of the D‐loop and digestion with restriction endonucleases. In addition, microgeographic variation was assessed by investigation of three cave populations within one island. A total of 24 genotypes, comprising two broad clades, was detected. The pattern of mtDNA variation reflects the colonization history of E. spelaea with estimates of haplotype and sequence diversity highest in the older western populations and lowest at the eastern periphery of the species' distribution. These findings may also be associated with an environmental cline from west to east. There is also evidence that genetic distance between populations reflects geographic relationships, especially historical connectedness, as measured by Pleistocene sea‐crossing distances. At the microgeographic level, cave populations were heterogeneous and composed of diverse lineages suggesting restricted local interchange.