by Eneko Aspillaga, Robert Arlinghaus, Martina Martorell-Barceló, Guillermo Follana-Berná, Arancha Lana, Andrea Campos-Candela and Josep Alós
Abstract Recent advances in tracking systems have revolutionized our ability to study animal movement in the wild. In aquatic environments, high-resolution acoustic telemetry systems make it technically possible to simultaneously monitor large amounts of individuals at unprecedented spatial and temporal resolutions, providing a unique opportunity to study the behaviour and…
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…
Abstract To understand how migratory seabirds meet the energetic challenges associated with wing molt and wintering, a full annual cycle behavioral study is needed. We studied the diving and flying activities of three Rhinoceros Auklets Cerorhinca monocerata migrating in the northwestern Pacific. The auklets decreased daily flight time and dive…
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 Kill rates of predators typically increase when they come into contact with naïve and abundant prey. Such a situation can lead to surplus killing or the occurrence of parallel kills (i.e. additional kills that predator makes while still consuming the carcass from the previous kill). However, there is limited…
by Ana M. González Nicholas J. Bayly Keith A. Hobson
Abstract 1. Migratory birds travel vast distances and the timing of migratory flights can affect survival and the ability to reproduce. For Neotropical migrant songbirds, early spring departure from wintering sites, early arrival to the breeding grounds and higher reproductive success have been related to the use of suitable habitats…
Abstract Large carnivores are important ecological drivers of ecosystem dynamics when they occur at ecologically effective densities. They are also challenging to conserve, especially in transboundary settings such as along borders of national parks. Here, we tested for effects of transboundary movements on survival of 72 radiocollared gray wolves from…
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…
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