Age and sex identification from wings of sage‐grouse
ABSTRACT We redefine and clarify procedures to classify sex and age (juveniles, yearlings, adults, and breeding‐age) of greater (Centrocercus urophasianus) and Gunnison sage‐grouse (C. minimus) from wings. Existing keys for greater sage‐grouse age and sex classification do not incorporate more recen...
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| Format: | Article |
| Language: | English |
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Wiley
2015-03-01
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| Series: | Wildlife Society Bulletin |
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| Online Access: | https://doi.org/10.1002/wsb.517 |
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| author | Clait E. Braun Michael A. Schroeder |
| author_facet | Clait E. Braun Michael A. Schroeder |
| author_sort | Clait E. Braun |
| collection | DOAJ |
| description | ABSTRACT We redefine and clarify procedures to classify sex and age (juveniles, yearlings, adults, and breeding‐age) of greater (Centrocercus urophasianus) and Gunnison sage‐grouse (C. minimus) from wings. Existing keys for greater sage‐grouse age and sex classification do not incorporate more recent information on timing and sequence of molt or regional variation. We evaluated keys with the aid of gonadally inspected, hunter‐harvested sage‐grouse in Colorado (1973–1990) and with birds captured and measured in Washington (1992–1997) and Oregon (2008–2012). The technique is accurate and transferable among biologists who have basic training in reading a key and examining wings (primaries, secondaries, tertials, and coverts). Accurate information on sex and age of grouse, particularly during harvest, is a fundamental component of our understanding of population dynamics, which ultimately enables improved management. © 2014 The Wildlife Society. |
| format | Article |
| id | doaj-art-ae6eefa5f32d436b8d09e7ba54cd49f5 |
| institution | Kabale University |
| issn | 2328-5540 |
| language | English |
| publishDate | 2015-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Wildlife Society Bulletin |
| spelling | doaj-art-ae6eefa5f32d436b8d09e7ba54cd49f52024-12-16T12:45:41ZengWileyWildlife Society Bulletin2328-55402015-03-0139118218710.1002/wsb.517Age and sex identification from wings of sage‐grouseClait E. Braun0Michael A. Schroeder1Grouse Inc. 5572 N Ventana Vista Road Tucson AZ 85750 USAWashington Department of Fish and Wildlife P.O. Box 1077 Bridgeport WA 98813 USAABSTRACT We redefine and clarify procedures to classify sex and age (juveniles, yearlings, adults, and breeding‐age) of greater (Centrocercus urophasianus) and Gunnison sage‐grouse (C. minimus) from wings. Existing keys for greater sage‐grouse age and sex classification do not incorporate more recent information on timing and sequence of molt or regional variation. We evaluated keys with the aid of gonadally inspected, hunter‐harvested sage‐grouse in Colorado (1973–1990) and with birds captured and measured in Washington (1992–1997) and Oregon (2008–2012). The technique is accurate and transferable among biologists who have basic training in reading a key and examining wings (primaries, secondaries, tertials, and coverts). Accurate information on sex and age of grouse, particularly during harvest, is a fundamental component of our understanding of population dynamics, which ultimately enables improved management. © 2014 The Wildlife Society.https://doi.org/10.1002/wsb.517age determinationCentrocercus minimusCentrocercus urophasianusgreater sage‐grouseGunnison sage‐grousemolt |
| spellingShingle | Clait E. Braun Michael A. Schroeder Age and sex identification from wings of sage‐grouse Wildlife Society Bulletin age determination Centrocercus minimus Centrocercus urophasianus greater sage‐grouse Gunnison sage‐grouse molt |
| title | Age and sex identification from wings of sage‐grouse |
| title_full | Age and sex identification from wings of sage‐grouse |
| title_fullStr | Age and sex identification from wings of sage‐grouse |
| title_full_unstemmed | Age and sex identification from wings of sage‐grouse |
| title_short | Age and sex identification from wings of sage‐grouse |
| title_sort | age and sex identification from wings of sage grouse |
| topic | age determination Centrocercus minimus Centrocercus urophasianus greater sage‐grouse Gunnison sage‐grouse molt |
| url | https://doi.org/10.1002/wsb.517 |
| work_keys_str_mv | AT claitebraun ageandsexidentificationfromwingsofsagegrouse AT michaelaschroeder ageandsexidentificationfromwingsofsagegrouse |