Stopover moult conditions influence plumage hue & breeding dynamics in Bullock’s orioles - O...
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Stopover moult conditions influence plumage hue & breeding dynamics in Bullock’s orioles (Icterus bullockii ) Orri Greaves
Transcript of Stopover moult conditions influence plumage hue & breeding dynamics in Bullock’s orioles - O...
- 1. Stopover moult conditions influence plumagehue& breeding dynamics inBullocks orioles(Icterus bullockii )Orri Greaves
- 2. 4th year Bachelor of ScienceMajor in Animal BiologyAnimal enthusiast
- 3. Outline1. Background2. Questions3. Methods4. Results5. Conclusions6. Future Work
- 4. Background(Pillar unpublished data)
- 5. Questions1. Does C or N predictvariation in plumagehue?2. Do moult conditionsinfluence breedingdynamics?
- 6. Study SitesFantasticPropertyKnutsfordCampground
- 7. RiversTrailTranquille River
- 8. Field Work
- 9. Lab WorkLower hue =more orangeHigher hue = more yellowLower C = wetter habitatHigher N = eating at a lowertrophic level
- 10. ResultsAdult maleFirst year maleAdult female
- 11. Tail: n = 28, p = 0.05Breast: n = 27, p = 0.04n = 28p = 0.02
- 12. Conclusions1. Adult males with diets at a lowertrophic level have more orangetails.2. Adult males feeding at a lowertrophic level arrive earlier onthe breeding grounds
- 13. Future Work
- 14. Acknowledgements Dr. Matthew Reudink Dr. Nancy Flood Andrew Pillar Steve Joly Glenn D. and the Kamloops Naturalist Club The lab
- 15. References1. Gray, D. 1996 Carotenoids and Sexual Dichromatism in North American Passerine Birds. The American Nat 148(3):453480.2. McGraw, K. 2006 Mechanics of carotenoid-based coloration. Bird Coloration Vol I. Harvard University Press. 177-242.3. Svensson, P. & Wong, B. 2011 Carotenoid-based signals in behavioural ecology: a review. Behav 148(2):131189.4. Pyle, P., W. Leitner, L. Lozano-Angulo, F. Avilez-Teran, H. Swanson, E. Gmez Limn & M. Chambers. 2009 Temporal, Spatial, and Annual Variation in the Occurrence of Molt-Migrant Passerines in the MexicanMonsoon Region. The Condor 111(4):583-590.5. Beal, F. 1910 Birds of California in relation to the fruit industry II. U.S. Dept Agricul Bull 34, Washington, D.C.6. Reudink, M., C. Studds, P. Marra, T. Kyser & L. Ratcliffe. 2009 Plumage brightness predicts non-breeding season territory quality in a long-distance migratory songbird, the American redstart Setophaga ruticilla . J AvianBiol 40:34-41.7. Saino, N., T. Szep, M. Romano, D. Rubolini, F. spina & A. Moller. 2004 Ecological conditions during winter predict arrival date at the breeding quarters in a trans-Saharan migratory bird. Eco Letters 7:21-25.8. Currie, D., D. Thompson & T. Burke. 2000 Patterns of territory settlement and consequences for breeding success in the Northern WheatearOenanthe oenanthe . Ibis 142:389398.9. Reudink, M., P. Marra, T. Kyser, P. Boag, K. Langin, & L. Ratcliffe. 2009 Non-breeding season events influence sexual selection in a long-distance migratory bird. Proc R Soc B 276:1619-1629.10. Kingma, S., M. Hall & A. Peters. 2012 Sperm storage reflects within- and extra-pair mating opportunities in a cooperatively breeding bird. Behav Eco & Sociobio 66(8):11151123.11. Yezerinac, S. & P. Weatherhead. 1997 Reproductive synchrony and extra-pair mating strategy in a socially monogamous bird, Dendroica petechia . Animal Behav 54(6):13931403.