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Citations since 2017
6 Research Items
Bergmann’s and Allen’s rules state that endotherms should be larger and have shorter appendages in cooler climates. However, the drivers of these rules are not clear. Both rules could be explained by adaptation for improved thermoregulation, including plastic responses to temperature in early life. Non-thermal explanations are also plausible as cli...
Background Migrants have been hypothesised to use different migration strategies between seasons: a time-minimization strategy during their pre-breeding migration towards the breeding grounds and an energy-minimization strategy during their post-breeding migration towards the wintering grounds. Besides season, we propose body size as a key factor i...
Migration is a common phenomenon across many animal taxa. Understanding how migration scales with body size across species is fundamental in the development of migration theory and in making size-related predictions. Although aerodynamic theory and ecophysiological scaling laws have assisted greatly in generating such predictions, their verificatio...
Background Geolocators are useful for tracking movements of long-distance migrants, but potential negative effects on birds have not been well studied. We tested for effects of geolocators (0.8–2.0 g total, representing 0.1–3.9 % of mean body mass) on 16 species of migratory shorebirds, including five species with 2–4 subspecies each for a total of...
Most migratory shorebird populations around the world are in jeopardy, none more so than those of the East Asian Australasian Flyway (EAAF). In order to preserve these highly mobile species detailed understanding of their use of fuelling and resting sites along the flyway is required. In this study we used light-level geolocators and new analytical...
Study of site faithfullness in non-breeding grounds of Ruddy Turnstone. Report prepared for The Wildlife Conservation Research Grants Programme by Friends of Shorebirds SE
Geolocators were deployed on waders in Australia for a third successive year, in Feb/Apr 2011 including on Eastern Curlew and Sanderling for the first time. Retrieval rates, in the 2011/12 austral summer, varied markedly between species. Technical performance of the geolocators was better than in previous years. However units on Greater Sand Plover...
In 2010, following successful trials with geolocators on Ruddy Turnstones in 2009, a total of 105 units, of four different models, were deployed at five locations on Ruddy Turnstones and Greater Sandplovers. Geolocator retrieval rates were 44% on Ruddy Turnstone and 27% on Greater Sandplover. Complete (59%) and partial (15%) technical failure rates...