Assessing the impact of colour-ring codes on parameter estimates from Cormack-Jolly-Seber models: a test with the Yellow-legged Gull (Larus michahellis) / Aldara Fernández, Asier Aldalur, Alfredo Herrero, Aitor Galarza, Jon Hidalgo, Juan Arizaga.
Contributor(s): Fernández, Aldara
| Aldalur Zulaika, Asier | Herrero Gorrotxategi, Alfredo | Galarza Ibarrondo, Aitor | Hidalgo, Jon | Arizaga, Juan | Aranzadi Zientzia Elkartea | .
Material type: 
Computer fileCitation: Fernández, A., Aldalur, A., Herrero, A-, Galarza, A.,Hidalgo, J., Arizaga, J. 2016. Assessing the impact of colour-ring codes on parameter estimates from Cormack-Jolly-Seber models: a test with the Yellow-legged Gull (Larus michahellis). J. Ornithol. 158(1): 323-326. DOI 10.1007/s10336-016-1372-0 Publisher: [S.l.]: Springer, 1/2016Content type: Texto (visual) Media type: electrónico Subject(s): Birdwatching | Colour ring | Cormack-Jolly-Seber models | MARK software | RingingGenre/Form: Artículo científicoSummary: Abstract: The type of ring (i.e. its colour combination: the
colour of the alphanumeric characters and the base colour of
the ring) used in population dynamics studies could have an
effect on parameters such as resighting probability (p); for
instance, we might expect a lower p value when using rings
with white characters than when using rings with dark characters. We performed an experiment using two types of colour rings (white or black characters on a dark base) in Yellowlegged Gulls in order to test our hypothesis. To do this, we
used Cormack–Jolly–Seber (CJS) models incorporating variation in p among the birds. We obtained no evidence supporting an effect of type of ring on either survival or p.
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http://link.springer.com/article/10.1007/s10336-016-1372-0
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Abstract: The type of ring (i.e. its colour combination: the
colour of the alphanumeric characters and the base colour of
the ring) used in population dynamics studies could have an
effect on parameters such as resighting probability (p); for
instance, we might expect a lower p value when using rings
with white characters than when using rings with dark characters. We performed an experiment using two types of colour rings (white or black characters on a dark base) in Yellowlegged Gulls in order to test our hypothesis. To do this, we
used Cormack–Jolly–Seber (CJS) models incorporating variation in p among the birds. We obtained no evidence supporting an effect of type of ring on either survival or p.
Fernández, A., Aldalur, A., Herrero, A-, Galarza, A.,Hidalgo, J., Arizaga, J. 2016. Assessing the impact of colour-ring codes on parameter estimates from Cormack-Jolly-Seber models: a test with the Yellow-legged Gull (Larus michahellis). J. Ornithol. 158(1): 323-326. DOI 10.1007/s10336-016-1372-0
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