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DTSTART;TZID=America/New_York:20261116T120000
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DTSTAMP:20261017T011033
CREATED:20261016T161012Z
LAST-MODIFIED:20261016T161012Z
UID:10000046-1794830400-1794834000@americanornithology.org
SUMMARY:Testing abiotic and biotic drivers of fitness and range limits along an elevational gradient in a Himalayan bird
DESCRIPTION:AOS Research Grant Seminar\nPresenter: Pranav Gokhale\, Ph.D. student\, Georgia Institute of Technology; 2025 AOS Alexander Wetmore Memorial Research Grant winner \n  \n \nIn this talk\, I will examine how abiotic and biotic factors shape reproductive success and elevational range limits in Hume’s Warbler across a steep elevational gradient in the western Himalaya. Through intensive nest monitoring\, camera traps\, insect sampling\, and measurements of temperature and precipitation\, I ask how different mechanisms constrain reproduction at the lower and upper limits of the species’ range. I will also show how selection varies among years but can stabilize over longer timescales\, providing insight into how different ecological pressures at opposite range limits may contribute to the evolution of species’ distributions. \n  \n  \n  \n  \n  \n  \n  \n 
URL:https://americanornithology.org/calendar/testing-abiotic-and-biotic-drivers-of-fitness-and-range-limits-along-an-elevational-gradient-in-a-himalayan-bird/
CATEGORIES:Events
LOCATION:https://americanornithology-org.zoom.us/webinar/register/WN_UT5eqYSdS1qLJYIlVJEUaA
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261130T120000
DTEND;TZID=America/New_York:20261130T130000
DTSTAMP:20261017T011033
CREATED:20261016T161612Z
LAST-MODIFIED:20261016T162540Z
UID:10000048-1796040000-1796043600@americanornithology.org
SUMMARY:Urban traffic noise disrupts auditory discrimination performance in Zebra Finches
DESCRIPTION:AOS Research Grant Seminar\nPresenter: Nicole St. Jacques\, Ph.D. candidate\, City University of New York; AOS 2025 Student Research Grant winner \n  \nAnthropogenic urban and traffic noise has been shown to disrupt vocal learning and impact associated neural substrates in juvenile songbirds. However\, less is known about how traffic noise influences auditory song perception and physiological processes in adults. In this talk\, I will share current results from an ongoing operant discrimination task using adult male and female Zebra Finches\, suggesting that New York City traffic noise disrupts song discrimination abilities. Results from a fecal corticosterone analysis revealed that traffic-exposed birds did not have more corticosterone than controls\, suggesting traffic noise may not increase stress\, but disrupt sensory processing\, attention\, and motivation. \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n 
URL:https://americanornithology.org/calendar/urban-traffic-noise-disrupts-auditory-discrimination-performance-in-zebra-finches/
CATEGORIES:Events
LOCATION:https://americanornithology-org.zoom.us/webinar/register/WN_HoBEiXrLTviwUCxCDn5ykw
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261207T120000
DTEND;TZID=America/New_York:20261207T130000
DTSTAMP:20261017T011033
CREATED:20261016T161911Z
LAST-MODIFIED:20261016T161911Z
UID:10000049-1796644800-1796648400@americanornithology.org
SUMMARY:Investigating the role of vocal performance in territorial defense in Bachman's Sparrows (Peucaea aestivalis)
DESCRIPTION:AOS Research Grant Seminar\nPresenter: Lauren Dawson-Scully\, Ph.D. student\, Florida Atlantic University; 2025 AOS Margaret Morse Nice Research Grant winner \n  \nVocal performance functions as a meaningful index signal in many songbird species\, but its role in territorial interactions remains unclear in Bachman’s Sparrows. This study uses a field playback experiment to test how Bachman’s Sparrow males respond\, both behaviorally and vocally\, to rivals varying in vocal performance. Since Bachman’s sparrows have a very large and complex song repertoire\, these results offer valuable insight for how vocal performance operates during competitive interactions in more elaborate vocal systems. \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n 
URL:https://americanornithology.org/calendar/investigating-the-role-of-vocal-performance-in-territorial-defense-in-bachmans-sparrows-peucaea-aestivalis/
CATEGORIES:Events
LOCATION:https://americanornithology-org.zoom.us/webinar/register/WN_gQapz_5EQVWRedcFMaaiTw
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