Understanding movement ecology of long-distance migrants is essential for effective conservation. We showed that West Atlantic Flyway Whimbrels (Numenius phaeopus) depart their breeding grounds at different times based on breeding latitude, sex, and nest fate. Whimbrel may exhibit sex-specific preferences in migration, with males favoring oceanic routes, or molt strategies, with males losing glued-on tags earlier than females.
View Article and Find Full Text PDFGlob Chang Biol
June 2024
Seasonally abundant arthropods are a crucial food source for many migratory birds that breed in the Arctic. In cold environments, the growth and emergence of arthropods are particularly tied to temperature. Thus, the phenology of arthropods is anticipated to undergo a rapid change in response to a warming climate, potentially leading to a trophic mismatch between migratory insectivorous birds and their prey.
View Article and Find Full Text PDFMost birds incubate their eggs, which requires time and energy at the expense of other activities. Birds generally have two incubation strategies: biparental where both mates cooperate in incubating eggs, and uniparental where a single parent incubates. In harsh and unpredictable environments, incubation is challenging due to high energetic demands and variable resource availability.
View Article and Find Full Text PDFPurpose: To examine the association between moral distress in ICU personnel, and medication errors and adverse events, and other adverse events.
Materials And Methods: In 13 ICUs, we measured moral distress once in all ICU staff, and incidence of five explicity-defined adverse safety events over 2 years. In 10 of the ICUs, pharmacists tabulated medication errors and adverse events during 1 day in the 2-year period.
Kubelka (Reports, 9 November 2018, p. 680) claim that climate change has disrupted patterns of nest predation in shorebirds. They report that predation rates have increased since the 1950s, especially in the Arctic.
View Article and Find Full Text PDFCan J Hosp Pharm
April 2018
The ideal free distribution assumes that animals select habitats that are beneficial to their fitness. When the needs of dependent offspring differ from those of the parent, ideal habitat selection patterns could vary with the presence or absence of offspring. We test whether habitat selection depends on reproductive state due to top-down or bottom-up influences on the fitness of woodland caribou (), a threatened, wide-ranging herbivore.
View Article and Find Full Text PDFLoss or alteration of forest ecosystems due to anthropogenic activities has prompted the need for mitigation measures aimed at protecting habitat for forest-dependent wildlife. Understanding how wildlife respond to such management efforts is essential for achieving conservation targets. Boreal caribou are a species of conservation concern due to the impacts of human induced habitat alteration; however the effects of habitat management activities are poorly understood.
View Article and Find Full Text PDFCan J Hosp Pharm
March 2018
Background: Use of medications containing the 5-aminosalicylic acid (5-ASA) moiety may cause a rare but potentially lethal side effect involving inflammation of the heart (myocarditis) or pericardium (pericarditis) or both (myopericarditis). Early recognition of 5-ASA as the cause is important to prevent progression of the inflammation.
Objective: To provide clinicians with information to assist in recognizing the signs and symptoms of 5-ASA-induced cardiac inflammation and the characteristics of the suspected therapy, and in determining the appropriate approach to treatment.
1. Although local variation in territorial predator density is often correlated with habitat quality, the causal mechanism underlying this frequently observed association is poorly understood and could stem from facultative adjustment in either group size or territory size. 2.
View Article and Find Full Text PDFMovement patterns offer a rich source of information on animal behaviour and the ecological significance of landscape attributes. This is especially useful for species occupying remote landscapes where direct behavioural observations are limited. In this study, we fit a mechanistic model of animal cognition and movement to GPS positional data of woodland caribou (Rangifer tarandus caribou; Gmelin 1788) collected over a wide range of ecological conditions.
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