BACKGROUND Animals adjust activity budgets as competing demands for limited time and energy shift across life history phases. For far-ranging migrants and especially pelagic seabirds, activity during breeding and migration are generally well studied but the "overwinter" phase of non-breeding has received less attention. Yet this is a critical time for recovery from breeding, plumage replacement...

Increases in thermal variability elevate metabolic rate due to Jensen's inequality, and increased metabolic rate decreases the fitness of dormant ectotherms by increasing consumption of stored energy reserves. Theory predicts that ectotherms should respond to increased thermal variability by lowering the thermal sensitivity of metabolism, which will reduce the impact of the warm portion of ther...

Farmers in Mediterranean climate regions are increasingly growing canola (Brassica napus L.) wheat (Triticum aestivum L.)-based systems to break soil-borne pathogen disease cycles, control weeds, and enhance crop marketing opportunities. A 6-year rainfed cropping experiment was conducted near Ritzville, Washington USA from 2015 2021. The objective compare performance of winter spring canola, tr...

Abstract Migratory connectivity describes the linkage between breeding and non-breeding sites, having major ecological implications in birds: one season influence success of an individual or a population following season. Most studies on migratory have used large-scale approaches, often considering regional populations, but fine-scale are also necessary to understand colony connectivity. The le...

The importance of overwinter mortality of 0+ perch (Perm fluviatilis L.) in central European lakes was estimated using a stochastic simulation model. The probability of overwinter mortality of a perch co­ hort was calculated by using a model developed for yellow perch (P. flavescens Mitchill). Winter duration from a long-term data set and the length of perch at the end of the first year from fi...