Monitoring the state-endangered Common Raven (Corvus corax) in southeastern Kentucky
نویسندگان
چکیده
University of Kentucky Department of Forestry 215 T.P. Cooper Bldg. Lexington, KY 40546-0073 (859) 257-9507 (office) (859) 323-1031 (fax) [email protected] Abstract In the eastern U.S., direct killing by humans and the loss of forest habitat and large mammals during the late 19 and early 20 centuries caused the extirpation of ravens in all but the most inaccessible and rugged portions of the Appalachian Mountains. Remnant raven populations in these areas have since served as a source of individuals that have successfully colonized portions of its former range. However, in many areas that appear suitable for its recovery, such as the Cumberland Plateau of Kentucky, the raven has yet to reestablish. We speculate as to what factors may be responsible for the failure of ravens to repopulate eastern Kentucky and outline our plan to assess its status in this region.
منابع مشابه
Sequencing of the complete mitochondrial genome of the common raven Corvus corax (Aves: Corvidae) confirms mitogenome-wide deep lineages and a paraphyletic relationship with the Chihuahuan raven C. cryptoleucus
Previous studies based on single mitochondrial markers have shown that the common raven (Corvus corax) consists of two highly diverged lineages that are hypothesised to have undergone speciation reversal upon secondary contact. Furthermore, common ravens are paraphyletic with respect to the Chihuahuan raven (C. cryptoleucus) based on mitochondrial DNA (mtDNA). Here we explore the causes of mtDN...
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تاریخ انتشار 2004