Source areas of Blue‐winged Teal harvested in Ontario and Prairie Canada based on stable isotopes: implications for sustainable management. Issue 1 (14th February 2020)
- Record Type:
- Journal Article
- Title:
- Source areas of Blue‐winged Teal harvested in Ontario and Prairie Canada based on stable isotopes: implications for sustainable management. Issue 1 (14th February 2020)
- Main Title:
- Source areas of Blue‐winged Teal harvested in Ontario and Prairie Canada based on stable isotopes: implications for sustainable management
- Authors:
- Palumbo, Matthew D.
Kusack, Jackson W.
Tozer, Douglas C.
Meyer, Shawn W.
Roy, Christian
Hobson, Keith A. - Abstract:
- Abstract: Determining the source areas of harvested individuals is important for effective conservation and management of migratory game birds. Banding has provided much information about source areas, but obtaining samples of marked individuals representative of all potential breeding areas is difficult for most species. To add to previous knowledge of harvest derivation based on banding data and to assist with regulatory decisions, we used stable hydrogen isotope ( δ 2 H) techniques to estimate natal and molt source areas of Blue‐winged Teal ( Spatula discors ) harvested in southern Canada in 2014 and 2017. We found that most birds harvested in southern Saskatchewan, southern Manitoba, northern Ontario, and southern Ontario likely originated in the prairie and boreal plains regions of Canada and the United States, which is the core production area for the species. Based on feather δ 2 H values, some birds harvested in Ontario may have also originated in Ontario. Our results differ from those of a long‐term analysis of band recovery data that revealed that most Blue‐winged Teal harvested in Ontario originated in the eastern part of the province and areas along the lower Great Lakes and southwestern Quebec. We found that nearly all birds harvested in Ontario in our study likely originated from areas north and west of the province. Together, banding and stable isotopes likely provide the best information available on source areas of harvested birds for regulatory decisionAbstract: Determining the source areas of harvested individuals is important for effective conservation and management of migratory game birds. Banding has provided much information about source areas, but obtaining samples of marked individuals representative of all potential breeding areas is difficult for most species. To add to previous knowledge of harvest derivation based on banding data and to assist with regulatory decisions, we used stable hydrogen isotope ( δ 2 H) techniques to estimate natal and molt source areas of Blue‐winged Teal ( Spatula discors ) harvested in southern Canada in 2014 and 2017. We found that most birds harvested in southern Saskatchewan, southern Manitoba, northern Ontario, and southern Ontario likely originated in the prairie and boreal plains regions of Canada and the United States, which is the core production area for the species. Based on feather δ 2 H values, some birds harvested in Ontario may have also originated in Ontario. Our results differ from those of a long‐term analysis of band recovery data that revealed that most Blue‐winged Teal harvested in Ontario originated in the eastern part of the province and areas along the lower Great Lakes and southwestern Quebec. We found that nearly all birds harvested in Ontario in our study likely originated from areas north and west of the province. Together, banding and stable isotopes likely provide the best information available on source areas of harvested birds for regulatory decision making. RESUMEN: Áreas de origen de Spatula discors cazadas en Ontario y Prairie Canadá con base en isótopos estables: implicaciones para el manejo sostenible Es importante determinar las áreas de origen de animales de caza para la conservación efectiva y el manejo de aves de caza migratorias. El anillamiento ha provisto mucha información sobre estas áreas, pero obtener muestras de individuos marcados que sean representativas de todas las áreas de reproducción potenciales es difícil para la mayoría de las especies. Con el fin de contribuir con información previa del origen de las aves cazadas con base en datos de anillos y para asistir en la toma de decisiones regulatorias, utilizamos técnicas de isotopos estable de hidrógeno ( δ 2 H) para estimar áreas de nacimiento y muda de Spatula discors cazadas en el sur de Canadá entre 2014 y 2017. Encontramos que la mayoría de las aves fueron cazadas en el sur de Saskatchewan, el sur de Manitoba, el norte de Ontario y el sur de Ontario probablemente se originaron en la región de praderas y planicies boreales de Canadá y Estados Unidos, el cual es el área nuclear de reproducción de esta especie. Con base en los valores de δ 2 H de las plumas, algunas aves que fueron cazadas en Ontario pueden, también, haberse originado en Ontario. Nuestros resultados difieren de los resultados de los análisis de largo plazo utilizando datos de anillos recuperados que sugerían que la mayoría de Spatula discors cazados en Ontario se originaban en la región este de la provincia y las áreas a lo largo de la región baja de los grandes lagos y el sur oeste de Quebec. Encontramos que casi todas las aves cazadas en Ontario en nuestro estudio probablemente se originaron de áreas al norte y al oeste de la provincia. En conjunto, los anillos y los isotopos estables posiblemente proveen la mejor información disponible de las áreas de origen de aves cazadas con fines de toma de decisiones regulatorias. … (more)
- Is Part Of:
- Journal of field ornithology. Volume 91:Issue 1(2020)
- Journal:
- Journal of field ornithology
- Issue:
- Volume 91:Issue 1(2020)
- Issue Display:
- Volume 91, Issue 1 (2020)
- Year:
- 2020
- Volume:
- 91
- Issue:
- 1
- Issue Sort Value:
- 2020-0091-0001-0000
- Page Start:
- 64
- Page End:
- 76
- Publication Date:
- 2020-02-14
- Subjects:
- breeding locations -- deuterium -- harvest derivation -- harvest management -- waterfowl
Birds -- Periodicals
Ornithology -- Periodicals
Ornithologie -- Périodiques
Oiseaux -- Baguage -- Périodiques
Oiseaux -- Périodiques
598 - Journal URLs:
- https://journal.afonet.org/ ↗
http://bibpurl.oclc.org/web/9965 ↗
http://elibrary.unm.edu/sora/JFO/index.php ↗
http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1557-9263 ↗
http://www.bioone.org/bioone/?request=get-journals-list&issn=0273-8570 ↗
http://www.blackwell-synergy.com/loi/jofo ↗
http://www.jstor.org/journals/02738570.html ↗ - DOI:
- 10.1111/jofo.12324 ↗
- Languages:
- English
- ISSNs:
- 0273-8570
- Deposit Type:
- Legaldeposit
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- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4984.110000
British Library HMNTS - ELD Digital store - Ingest File:
- 13170.xml