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Deer mice, Peromyscus maniculatus, are found on all eight California Channel Islands and are classified as sepa-
 

Summary: 278
ABSTRACT
Deer mice, Peromyscus maniculatus, are found on all
eight California Channel Islands and are classified as sepa-
rate subspecies on each island. Distinct mitochondrial DNA
haplotypes, identified by restriction enzyme analysis, were
found in island deer mice, and on five of the eight islands
deer mice have unique haplotypes, suggesting genetic isola-
tion and independent evolution of several island subspecies.
Founder effects on mtDNA diversity in island populations
relative to mainland populations are evident. The connec-
tivity of the deer mouse populations on East, Middle, and
West Anacapa Islands (P. m. anacapae) was assessed using
sequence data from the mitochondrial cytochrome c oxidase
subunit II gene (COII). A common haplotype was found on
all three Anacapa Islets, although Middle and East Anacapa
each had an additional unique haplotype. This suggests that
deer mice on Anacapa are functioning as a metapopulation,
with some gene flow or extinction/recolonization occurring
among the islets. Discriminant function analysis of cranial

  

Source: Ashley, Mary V. - Department of Biological Sciences, University of Illinois at Chicago

 

Collections: Biology and Medicine; Environmental Sciences and Ecology