by Eneko Aspillaga, Stijn Bruneel, Josep Alós, Pieterjan Verhelst, David Abecasis, Kim Aarestrup, Kim Birnie-Gauvin, Pedro Afonso, Miquel Palmer & Jan Reubens
Abstract Background The lack of compatibility between acoustic telemetry equipment from different manufacturers has been a major obstacle to consolidating large collaborative tracking networks. Undisclosed encrypted signal coding protocols limit the use of acoustic telemetry to study animal movements over large spatial scales, reduce competition between manufacturers, and stifle innovation.…
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 Tony Candela, Jeanette Wyneken, Peter Leijen, Philippe Gaspar, Frederic Vandeperre, Terry Norton, Walter Mustin, Julien Temple-Boyer, Emily Turla, Nicole Barbour, Sean Williamson, Rui Guedes, Gonçalo Graça, Ivan Beltran, Joana Batalha, Andrea Herguedas, Davide Zailo, Vandanaa Baboolal, Francesca Casella and George L. Shillinger
Abstract After hatching, sea turtles leave the nest and disperse into the ocean. Many years later, they return to their natal coastlines. The period between their leaving and their returning to natal areas, known as the “Lost Years”, is poorly understood. Satellite tracking studies aimed at studying the “Lost Years”…
by Eunjung Kim, Chi Hin Lam, Gyum Joon Park and Jong Hee Lee
Introduction: To better understand Patagonian toothfish (Dissostichus eleginoides) movement and habitat in the Southwest Atlantic, fifty popup satellite archival tags (PSATs) were deployed off Davis Bank on North Scotia Ridge between 2019 and 2020 on individuals ranging from 97-139 cm total length. Methods: PSATs (18 Lotek Wireless PSATFLEX and 32…
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…
by Wesley J. Neely, Renato A. Martins, Camila M. Mendonça da Silva, Tainá Ferreira da Silva, Lucas E. Fleck, Ross D. Whetstone, Douglas C. Woodhams, W. Harrison Cook, Paula R. Prist, Victor H. Valiati, Sasha E. Greenspan, Alexandro M. Tozetti, Ryan L. Earley & C. Guilherme Becker
Abstract The amphibian skin microbiome is an important component of anti-pathogen defense, but the impact of environmental change on the link between microbiome composition and host stress remains unclear. In this study, we used radiotelemetry and host translocation to track microbiome composition and function, pathogen infection, and host stress over…
Abstract Although miniaturized data loggers allow new insights into avian migration, incomplete knowledge of basic patterns persists, especially for nightjars. Using GPS data loggers, this study examined migration ecology of the eastern whip-poor-will Antrostomus vociferus, across three migration strategies: flyover, short-stay, and long-stay. We documented migration movements, conducted hotspot analyses,…
by Amy L. Scarpignato, Allison E. Huysman, Miguel F. Jimenez, Chad J. Witko, Autumn- Lynn Harrison, Nathaniel E. Seavy, Melanie A. Smith, Jill L. Depp, Chad B. Wilsey, Peter P. Marra
Abstract Animal tracking has become an effective way to identify where and when migratory species encounter threats throughout their annual cycle. Yet, untracked or poorly tracked species and undiscoverable or inaccessible data for the species that have been tracked mean that gaps in the knowledge of where and when species…
by Alexander L. Koeberle, Webster Pearsall, Brad E. Hammers, Daniel Mulhall, James E. McKenna Jr., Marc Chalupnicki & Suresh A. Sethi
Abstract Estimates of juvenile survival are critical for informing population dynamics and the ecology of fish, yet these demographic parameters are difficult to measure. Here, we demonstrate that advances in animal tracking technology provide opportunities to evaluate survival of juvenile tagged fish. We implemented a whole-lake telemetry array in conjunction…
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