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Integrating Population Genetic and Quantitative Genetic Models Reveals Selection in Echolocation
This document discusses a study that integrated population genetic and quantitative genetic models to reveal selection in the echolocation of bats. The study examined divergence in echolocation calls between two bat species, Pteronotus parnellii, which uses Doppler shift compensation, and another New World bat. The authors considered several hypotheses for this divergence, such as genetic drift, selection pressures from habitat physical features like clutter and humidity, morphological differences, interactions with other species or prey. The study was able to find evidence for selection by combining genetic data with quantitative trait information and data on habitat characteristics, ruling out neutral processes like genetic drift. It thanks collaborators in Puerto Rico and the Dominican Republic for their contributions to the research.
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Integrating Population Genetic and Quantitative Genetic Models Reveals Selection in Echolocation
- 1. Integrating Population Genetic andQuantitative Genetic Models Reveals Selection in Echolocation Liliana M. Dávalos, Jon Flanders, Winston C. Lancaster, Bonnie Lei, and Amy L. Russell
- 2. Pteronotus parnellii CF echolocationwith Doppler shift compensation in the New World
- 3. Why divergence? (inallopatry) • Null hypothesis • Genetic drift (e.g., Puechmaille et al. 2011) • Selection • Habitat physical features • Clutter (e.g., Odendaal et al. 2014) • Humidity (e.g., Guillén et al. 2000) • Morphology • Acoustic environment (e.g., Gillam & McCracken 2007) • Other species (Kingston et al. 2001*) • Prey (Kingston & Rossiter 2004*)
- 5. Lande 1976 Evolution •Little difference in means • High variance can accommodate wide variation
- 6. Where could we findsuch estimates? In the genetics data Hey & Nielsen 2007 PNAS
- 8. “ancestral” data, Clareet al. 2013 BMC Evol Biol
- 9. What other datado we have? • Habitat physical features • Clutter (e.g., Odendaal et al. 2014) • Humidity (e.g., Guillén et al. 2000)
- 12. Armstrong & Kerry2011 J Theor Biol
- 15. What is left? •Null hypothesis • Genetic drift (e.g., Puechmaille et al. 2011) • Selection • Habitat physical features • Clutter (e.g., Odendaal et al. 2014) • Humidity (e.g., Guillén et al. 2000) • Morphology • Acoustic environment (e.g., Gillam & McCracken 2007) • Other species (Kingston et al. 2001*) • Prey (Kingston & Rossiter 2004*) X X X X X
- 16. Thanks! • Dávalos lab •Omar Warsi • Laurel Yohe • Puerto Rico • Armando Rodríguez • Ashley Rolfe • Jean Sandoval • Dominican Republic • Grupo Jaragua • Sixto Incháustegui • Yolanda León • Miguel Santiago Núñez