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

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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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Partner Choice in Raven (Corvus corax) Cooperation

Although social animals frequently make decisions about when or with whom to cooperate, little is known about the underlying mechanisms of partner choice. Most previous studies compared different dyads' performances, though did not allow an actual choice among partners. We tested eleven ravens, Corvus corax, in triads, giving them first the choice to cooperate with either a highly familiar or a...

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Monitoring the state-endangered Common Raven (Corvus corax) in southeastern Kentucky

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...

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Gas exchange and energy cost of flight in the white-necked raven, Corvus cryptoleucus.

Energy expenditure during steady-state, wind tunnel flights was estimated from O2 and CO2 exchange in five white-necked ravens (Corvus cryptoleucus, mean mass, 0.48 kg) at air speeds of 8-11 m/s. Power input was closely similar to allometric predictions based on data from other species of smaller birds. It increased significantly with air speed and flight angle above horizontal, and decreased w...

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ژورنال

عنوان ژورنال: PLOS ONE

سال: 2017

ISSN: 1932-6203

DOI: 10.1371/journal.pone.0187316