by Elly C. Knight., Autumn‐Lynn Harrison., Amy L. Scarpignato., Steven L. Van Wilgenburg., Erin M. Bayne., Janet W. Ng., Emily Angell., R. Bowman., R. Mark Brigham., Bruno Drolet., Wendy E. Easton., Timothy R. Forrester., Jeffrey T. Foster., Samuel Haché., Kevin C. Hannah., Kristina G. Hick., Jacques Ibarzabal., Tara L. Imlay., Stuart A. Mackenzie., Alan Marsh., Liam P. McGuire., Gretchen N. Newberry., David Newstead., Andrea Sidler., Pam H. Sinclair., Jaime L. Stephens., David L. Swanson., Junior A. Tremblay., Peter P. Marra.
Abstract Migratory connectivity is the degree to which populations are linked in space and time across the annual cycle. Low connectivity indicates mixing of populations while high connectivity indicates population separation in space or time. High migratory connectivity makes individual populations susceptible to local environmental conditions; therefore, evaluating migratory connectivity…
by Merkel, B., Descamps, S., Yoccoz, N. G., Grémillet, D., Daunt, F., Erikstad, K. E., ... & Reiertsen, T. K
Abstract Aim: In migratory species, individuals often use fixed and individual‐specific migration strategies, which we term individual migration strategy fidelity (IMSF). Our goal was to test if guillemots have flexible or fixed individual migration strategies (i.e. IMSF), if this behaviour is consistent across large parts of the genus’ range and…
Abstract Preventing or reversing population declines of rare species often requires an understanding of their complete annual life cycle, but this information is lacking for many species. Such has been the case for Yuma Ridgway’s Rails (Rallus obsoletus yumanensis), a federally endangered marsh bird endemic to the Lower Colorado River…
by Skeen, H., Cooper, N., Hackett, S., Bates, J., & Marra, P
Abstract Gut microbiota are increasingly recognized as an integral aspect of host health, and are influenced by environmental factors, host diet, and regular physiological stressors such as seasonal host movement ecologies. Migratory animals experiencing substantial change in diet and habitat across the annual cycle may have corresponding shifts in host-associated…
Abstract Technology has revolutionized our ability to track animals across the globe, significantly advancing our understanding of animal movement. Technological and logistical challenges, however, have led to non-migratory movements that fall outside of the territory/home range paradigm, receiving less attention. This may have resulted in a widespread underestimation of the…
by Ravache, A., Bourgeois, K., Weimerskirch, H., Pagenaud, A., De Grissac, S., Miller, M., Dromzée, S., Lorrain, A., Allain, V., Bustamante, P. & Bylemans, J.,
Abstract Two species breeding in sympatry are more likely to coexist if their ecological niches are segregated either in time, space or in trophic habits. Here, we combined GPS-tracking, stable isotope analysis and DNA metabarcoding analysis to understand how the rare Tahiti petrel Pseudobulweria rostrata (TP) copes with the very…
by Ossa, G., Lilley, T., Waag, A. G., Meierhofer, M. B., & Johnson, J. S.
Abstract There are few studies of day‐roosting ecology of bats inhabiting the southernmost forests of South America, where cool summer temperatures and land management practices pose several challenges. The goal of the present study was to describe day‐roosting habitats and patterns of thermoregulation in two bat species occurring on Tierra…
by Patrick, S. C., Corbeau, A., Réale, D., & Weimerskirch, H.
Abstract Biparental care is widespread in avian species. Individuals may match the contribution of their partner, resulting in equal parental effort, or may exploit their partner, to minimise their own investment. These two hypotheses have received much theoretical and empirical attention in short‐lived species, that change mates between seasons. However,…
by Telve, K., Mägi, M., Lodjak, J., Kilgas, P., Remm, J., & Mänd, R.
Abstract Detailed knowledge of habitat utilization by animals is integral in understanding their ability to adjust resource exploitation to the conditions of heterogeneous and constantly changing habitats. To identify the most important micro- and macrohabitat landscape characteristics that are important factors for birds when choosing foraging patches in their territory,…
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