thumbnail

An approach for assessment of water quality using semipermeable membrane devices (SPMDs) and bioindicator tests

Chemosphere

By:
, , , , , ,

Links

Abstract

Mitochondrial DNA (mtDNA) genotypes of gray wolves and coyotes from localities throughout North America were determined using restriction fragment length polymorphisms. Of the 13 genotypes found among the wolves, 7 are clearly of coyote origin, indicating that genetic transfer of coyote mtDNA into wolf populations has occurred through hybridization. The transfer of mtDNA appears unidirectional from coyotes into wolves because no coyotes sampled have a wolf-derived mtDNA genotype. Wolves possessing coyote-derived genotypes are confined to a contiguous geographic region in Minnesota, Ontario, and Quebec, and the frequency of coyote-type mtDNA in these wolf populations is high (>50%). The ecological history of the hybrid zone suggests that hybridization is taking place in regions where coyotes have only recently become abundant following conversion of forests to farmlands. Dispersing male wolves unable to find conspecific mates may be pairing with female coyotes in deforested areas bordering wolf territories. Our results demonstrate that closely related species of mobile terrestrial vertebrates have the potential for extensive genetic exchange when ecological conditions change suddenly.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
An approach for assessment of water quality using semipermeable membrane devices (SPMDs) and bioindicator tests
Series title:
Chemosphere
Volume
41
Issue:
3
Year Published:
2000
Language:
English
Contributing office(s):
Fort Collins Science Center
Description:
p. 311-321
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Chemosphere
First page:
311
Last page:
321
Number of Pages:
11