Contrasting molecular and morphological evidence for the identification of an anomalous Buteo: a cautionary tale for hybrid diagnosis

An adult Buteo was found dead as a road-kill south of Sacramento, California, and was thought to represent the first state record of the eastern Red-shouldered Hawk (B. lineatus lineatus;). It is now a specimen in the Museum of Wildlife and Fisheries Biology (WFB 4816) at the University of Californi...

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Main Authors: William S. Clark, Spencer C. Galen, Joshua M. Hull, Megan A. Mayo, Christopher C. Witt
Format: Article
Language:English
Published: PeerJ Inc. 2017-01-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/2850.pdf
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author William S. Clark
Spencer C. Galen
Joshua M. Hull
Megan A. Mayo
Christopher C. Witt
author_facet William S. Clark
Spencer C. Galen
Joshua M. Hull
Megan A. Mayo
Christopher C. Witt
author_sort William S. Clark
collection DOAJ
description An adult Buteo was found dead as a road-kill south of Sacramento, California, and was thought to represent the first state record of the eastern Red-shouldered Hawk (B. lineatus lineatus;). It is now a specimen in the Museum of Wildlife and Fisheries Biology (WFB 4816) at the University of California, Davis. We examined this specimen and found that many of its plumage characters differed from all other adult Red-shouldered Hawks examined, including nominate adults. Plumage markings and measurements were intermediate between Red-tailed Hawk (Buteo jamaicensis, ssp calurus) and Red-shouldered Hawk (ssp elegans), leading us to hypothesize that the bird was a hybrid. However, mtDNA sequences and nuDNA microsatellites proved definitively that the bird was a Red-shouldered Hawk, most likely of eastern origin. This case illustrates that apparent hybrids or apparent vagrants could be individuals with anomalous phenotypes caused by rare genetic variation or novel epigenetic effects.
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spelling doaj.art-e39f275f3c6b4873baa9a1c948be20012023-12-03T10:37:59ZengPeerJ Inc.PeerJ2167-83592017-01-015e285010.7717/peerj.2850Contrasting molecular and morphological evidence for the identification of an anomalous Buteo: a cautionary tale for hybrid diagnosisWilliam S. Clark0Spencer C. Galen1Joshua M. Hull2Megan A. Mayo3Christopher C. Witt4Harlingen, TX, United StatesSackler Institute for Comparative Genomics, American Museum of Natural History, New York, NY, United StatesDepartment of Animal Science, University of California, Davis, CA, United StatesDepartment of Animal Science, University of California, Davis, CA, United StatesMuseum of Southwestern Biology and Department of Biology, University of New Mexico, Albuquerque, NM, United StatesAn adult Buteo was found dead as a road-kill south of Sacramento, California, and was thought to represent the first state record of the eastern Red-shouldered Hawk (B. lineatus lineatus;). It is now a specimen in the Museum of Wildlife and Fisheries Biology (WFB 4816) at the University of California, Davis. We examined this specimen and found that many of its plumage characters differed from all other adult Red-shouldered Hawks examined, including nominate adults. Plumage markings and measurements were intermediate between Red-tailed Hawk (Buteo jamaicensis, ssp calurus) and Red-shouldered Hawk (ssp elegans), leading us to hypothesize that the bird was a hybrid. However, mtDNA sequences and nuDNA microsatellites proved definitively that the bird was a Red-shouldered Hawk, most likely of eastern origin. This case illustrates that apparent hybrids or apparent vagrants could be individuals with anomalous phenotypes caused by rare genetic variation or novel epigenetic effects.https://peerj.com/articles/2850.pdfUnusual plumageDNAPhenologyMorphologyHybridSpecimen
spellingShingle William S. Clark
Spencer C. Galen
Joshua M. Hull
Megan A. Mayo
Christopher C. Witt
Contrasting molecular and morphological evidence for the identification of an anomalous Buteo: a cautionary tale for hybrid diagnosis
PeerJ
Unusual plumage
DNA
Phenology
Morphology
Hybrid
Specimen
title Contrasting molecular and morphological evidence for the identification of an anomalous Buteo: a cautionary tale for hybrid diagnosis
title_full Contrasting molecular and morphological evidence for the identification of an anomalous Buteo: a cautionary tale for hybrid diagnosis
title_fullStr Contrasting molecular and morphological evidence for the identification of an anomalous Buteo: a cautionary tale for hybrid diagnosis
title_full_unstemmed Contrasting molecular and morphological evidence for the identification of an anomalous Buteo: a cautionary tale for hybrid diagnosis
title_short Contrasting molecular and morphological evidence for the identification of an anomalous Buteo: a cautionary tale for hybrid diagnosis
title_sort contrasting molecular and morphological evidence for the identification of an anomalous buteo a cautionary tale for hybrid diagnosis
topic Unusual plumage
DNA
Phenology
Morphology
Hybrid
Specimen
url https://peerj.com/articles/2850.pdf
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