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DTSTART;TZID=America/New_York:20261109T120000
DTEND;TZID=America/New_York:20261109T130000
DTSTAMP:20261017T115623
CREATED:20261016T160730Z
LAST-MODIFIED:20261016T160730Z
UID:10000045-1794225600-1794229200@americanornithology.org
SUMMARY:Does ecological specificity predict patterns of genetic diversity\, differentiation\, and divergence in a Central American assemblage?
DESCRIPTION:AOS Research Grant Seminar\nPresenter: Jack Hruska\, Postdoctoral Research Associate\, University of Nebraska-Lincoln; 2020 AOS Alexander Wetmore Memorial Research Grant winner \n  \n \nEcological interactions have been shown to be predictive of genetic diversity and divergence. Until recently\, these traits were largely ignored by the field of comparative phylogeography\, which seeks to explain the biotic and abiotic factors that determine population persistence across landscapes. Employing a comparative phylogeographic approach\, we test the predictions of the specialist-generalist variation hypothesis (SGVH) and ask if habitat specificity is predictive of genetic diversity\, differentiation\, and divergence\, in an assemblage of co-distributed birds of northern Central America. While we do not find strong support for the predictions of the SGVH\, we find diversity and differentiation patterns to suggest that ecological specificity is somewhat predictive of genetic outcomes across this assemblage. \n  \n  \n  \n  \n  \n 
URL:https://americanornithology.org/calendar/does-ecological-specificity-predict-patterns-of-genetic-diversity-differentiation-and-divergence-in-a-central-american-assemblage/
CATEGORIES:Events
LOCATION:https://americanornithology-org.zoom.us/webinar/register/WN_MU_-78dlRIGDXcQwqt3f2A
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261116T120000
DTEND;TZID=America/New_York:20261116T130000
DTSTAMP:20261017T115623
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
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261123T120000
DTEND;TZID=America/New_York:20261123T130000
DTSTAMP:20261017T115624
CREATED:20261016T161259Z
LAST-MODIFIED:20261016T161259Z
UID:10000047-1795435200-1795438800@americanornithology.org
SUMMARY:Beyond Presence-Absence: Using passive acoustic surveys to estimate the abundance of Arctic-breeding birds
DESCRIPTION:AOS Research Grant Seminar\nPresenter: Morgan Ziegenhorn\, Senior Data Scientist and Acoustic Ecologist | Manomet Conservation Sciences\, Manomet Conservation Sciences; 2025 Kessel Fellowship winner \n  \nEstimating density\, rather than presence-absence\, remains a major challenge for passive acoustic monitoring. However\, density estimates are required to produce population size estimates\, which are a prerequisite for effective management of avian species. In this seminar\, Dr. Ziegenhorn will present and discuss the challenges\, setbacks\, and\, ultimately\, results of a novel method for density estimation that uses a modified version of traditional distance sampling to generate robust density estimates of Arctic-breeding birds from acoustic surveys and deep learning outputs. Ultimately\, the development of efficient\, automated abundance estimation methods such as this is critical for diversifying the monitoring approaches available for fast-declining bird populations. \n  \n  \n  \n  \n  \n  \n  \n  \n  \n 
URL:https://americanornithology.org/calendar/beyond-presence-absence-using-passive-acoustic-surveys-to-estimate-the-abundance-of-arctic-breeding-birds/
CATEGORIES:Events
LOCATION:https://americanornithology-org.zoom.us/webinar/register/WN_JGdGKsoDRQaxwojrwD2GPw
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261130T120000
DTEND;TZID=America/New_York:20261130T130000
DTSTAMP:20261017T115624
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:20261017T115624
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
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20261214T120000
DTEND;TZID=America/New_York:20261214T130000
DTSTAMP:20261017T115624
CREATED:20261016T162326Z
LAST-MODIFIED:20261016T162326Z
UID:10000050-1797249600-1797253200@americanornithology.org
SUMMARY:You are what you eat: diet quality\, display behavior\, and mating success in Greater Sage-Grouse
DESCRIPTION:AOS Research Grant Seminar\nPresenter: Eric Tymstra; Ph.D. candidate in the Graduate Group in Ecology at the University of California\, Davis; 2020 Werner and Hildegard Hesse Research Grant winner \n  \nGreater Sage-Grouse males gather on leks each spring to perform energetically costly courtship displays\, and only a few of them get most of the matings. But what determines which males succeed? In this talk\, I bring together three parts of my dissertation. First\, using more than a decade of data from leks in Wyoming and California\, I show how lek size changes the path to mating success: showing up matters everywhere\, but on larger leks a male’s position relative to copulation hotspots matters more. Second\, using GPS-tagged males\, I ask how foraging choices and sagebrush chemistry relate to display performance\, and find that where a male forages matters more than which plants he browses once he’s there. Third\, I evaluate a fecal biomarker of detoxification as a window into the physiological cost of eating toxic sagebrush\, and what it can and can’t yet tell us about male performance. Together\, these results show how social context\, space\, and diet interact to shape mating success\, with implications for managing sagebrush habitat for sage-grouse conservation. \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n 
URL:https://americanornithology.org/calendar/you-are-what-you-eat-diet-quality-display-behavior-and-mating-success-in-greater-sage-grouse/
CATEGORIES:Events
LOCATION:https://americanornithology-org.zoom.us/webinar/register/WN__BK4Svm9RrWytI20k_OuEQ
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20270803
DTEND;VALUE=DATE:20270808
DTSTAMP:20261017T115624
CREATED:20261008T180505Z
LAST-MODIFIED:20261008T180505Z
UID:10000044-1817251200-1817683199@americanornithology.org
SUMMARY:AOS 2027 Annual Meeting
DESCRIPTION:Join us at the 145th annual meeting of the American Ornithological Society (AOS). \nFollowing our long legacy of vibrant annual meetings\, the 2027 meeting will once again offer a great opportunity for sharing and discussing scientific research in all areas involving birds. \nWe envision a broad discussion of research that spans the breadth of modern ornithology through plenaries\, symposia\, workshops\, roundtable discussions\, contributed papers\, and posters. In addition to these exciting presentations\, we will have a variety of exhibitors from the commercial\, non-profit\, and government sectors. We will also host a series of daily\, fun networking events and outings for you to make new connections and reconnect with colleagues! \nRemember to mark your calendar for this meeting! \n  \n  \n 
URL:https://americanornithology.org/calendar/aos-2027-annual-meeting/
LOCATION:The Monona Terrace\, One John Nolen Dr\, Madison\, WI\, 53703\, United States
CATEGORIES:Events
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