by Jacob Walker, Jean-François Therrien, Camille Bégin-Marchand, Pascal Côté, Alexandre Terrigeol, François Gagnon, Junior A. Tremblay
Abstract Migration is the least-studied phase of the life cycle for many bird species, despite its importance to the full understanding of their life history traits and conservation. Between 2014 and 2023, we deployed tracking devices at Observatoire d’oiseaux de Tadoussac, Québec and used the Motus Wildlife Tracking System to…
Abstract Black-backed Woodpecker (Picoides arcticus) is known to benefit from pulse-resource disturbances in boreal forest for example, by colonizing recently burned habitats. Although insect outbreaks are ubiquitous in some parts of the eastern boreal forest, the opportunities offered by these natural disturbances for the Black-backed Woodpecker remain poorly understood. Between…
by GAVIN M. JONES , DANA REID , CEEANNA ZULLA , JACK WILLIAMS4, SHAULA HEDWALL , REBECCA KIRBY
Abstract Understanding how species of conservation concern interact with natural disturbances provides insights into their evolutionary environment and can inform land management and conservation planning. We examined the breeding season nocturnal space use (i.e., foraging ecology) of three Mexican spotted owls (Strix occidentalis lucida) in southern New Mexico, USA that…
by Mara F. Müller , Cameron J. Baker , Sam C. Banks , Mariana A. Campbell , Tara L. Crewe , Mirjam Kaestli, Sydney J. Collett, Ian J. Radford, Hamish A. Campbell
Abstract Tropical granivorous finches often form large flocks around resources. The composition of these flocks, whether they are random groups of individuals or comprise related birds travelling together, is currently unknown. To bridge this knowledge gap, we combined high-frequency location tracking with comprehensive genetic sequencing to investigate the relationship between…
by Sander Lagerveld, Pepijn de Vries, Jane Harris, Sue Parsons, Elisabeth Debusschere, Ommo Hüppop, Vera Brust & Heiko Schmaljohann
Abstract Background Migratory bats perform seasonal movements between their summer and winter areas. When crossing ecological barriers, like the open sea, they are exposed to an increased mortality risk due to energetically demanding long-distance flights and unexpected inclement weather events. How such barriers affect bat migratory movements is still poorly…
by Bryant C Dossman, Emily Filiberti, Amber M Roth, Peter P Marra
Abstract: Rarely, is there an opportunity to study and directly observe the same migratory animal across both breeding and nonbreeding seasons. In a rare, documented case, we highlight a live reencounter of a female Setophaga ruticilla (American Redstart) on its nest during the breeding season— an individual that was originally…
by Lucy Mitchell, Vera Brust, Thiemo Karwinkel, Susanne Åkesson, Dmitry Kishkinev, Gabriel Norevik, Tibor Szep, Anders Hedenström, Sander Lagerveld, Barbara Helm, and Heiko Schmaljohann.
Abstract Accelerated biodiversity loss has destabilized functional links within and between ecosystems. Species that cross different ecosystems during migration between breeding and nonbreeding sites are particularly sensitive to global change because they are exposed to various, often ecosystem-specific, threats. Because these threats have lethal and nonlethal effects on populations, many…
by Sarah J. Clements, Liam A. Berigan, Alexander C. Fish, Rachel L. Darling, Amber M. Roth, Greg Balkcom, Bobbi Carpenter, Gary Costanzo, Jeffrey Duguay, Kayleigh Filkins, Clayton L. Graham, William Harvey, Michael Hook, Douglas L. Howell, Seth Maddox, Scott McWilliams, Shawn W. Meyer, Theodore C. Nichols, J. Bruce Pollard, Christian Roy, David Sausville, Colby Slezak, Josh Stiller, Jacob Straub, Mathieu Tetreault, Dawn Washington, Lisa Williams and Erik J. Blomberg
Abstract Diversity in behavior is important for migratory birds in adapting to dynamic environmental and habitat conditions and responding to global change. Migratory behavior can be described by a variety of factors that comprise migration strategies. We characterized variation in migration strategies in American Woodcock (Scolopax minor), a migratory gamebird…
Abstract We studied the migration of Magellanic penguins near the southern tip of the breeding distribution, and for the first time found evidence of partial migration for this species within the same colony. Forty-three percent of the penguins studied stayed within ~290 km of the colony (residents), while others went…
