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The role of dispersal in population dynamics of breeding Ross's geese
(2006-04-06)
Spatial variation in density of organisms can lead to challenges in estimation of population size. Associated vital rates responsible for this variation also may vary geographically and in response to local ecological ...
Physiological and ecological aspects of winter torpor in captive and free-ranging striped skunks
(2005-05-10)
The principle objective of this investigation was to develop an understanding of the physiological response and ecological aspects of winter torpor of small carnivores, specifically striped skunks (Mephitis mephitis) in ...
HABITAT USE, MOVEMENT PATTERNS, AND BODY CONDITION OF MALE AND FEMALE SNOWY OWLS (BUBO SCANDIACUS) IN WINTER
(2017-04-03)
Birds that winter in northern latitudes face challenges associated with cold climates, including reduced food abundance and availability. Additionally, metabolic requirements are greater in colder weather and more food is ...
Dynamics of the northern flicker hybrid zone : a test of the bounded-hybrid superiority hypothesis
(2007-10-30)
The bounded-hybrid superiority hypothesis (BHSH) predicts stable hybrid zones are characterized by hybrids having the highest fitness within the zone. The dynamic-equilibrium hypothesis (DEH) predicts hybrids to have the ...
FACTORS INFLUENCING BODY CONDITION AND ARRIVAL PHENOLOGY OF NEOTROPICAL MIGRANTS AT A NORTHERN SPRING STOPOVER SITE
(2012-04-06)
Assessing the effect of winter habitat quality and environmental conditions on the fitness of migratory birds is important to understand factors that regulate migratory bird populations throughout the annual cycle. I ...
Population biology of Ross's geese at McConnell River, Nunavut
(2009)
Understanding what influences movement patterns in animals is important to the understanding of colonization, range expansion, and source–sink dynamics. Ross’s geese (Chen rossii) have been expanding their nesting range ...
Parental care in northern flickers: sex-related patterns of foraging, provisioning, and habitat use
(2014-04-09)
The sexes have different life histories that can influence their parental care strategies. I studied northern flicker, Colaptes auratus, parents and simultaneously radio-tracked mates during the nestling and post-fledging ...
From ecophysiology to ecoregions: Integrating patterns in waterfowl reproductive success across multiple scales
(2019-10-04)
Variation in avian reproductive success (RS) can be influenced by intrinsic traits (e.g., individual quality, physiology and experience) or extrinsic factors (e.g., weather, habitat use, or landscape composition) which can ...
The edge of a species' range : survival and space-use patterns of raccoons at the northern periphery of their distribution
(2006-03-29)
The raccoon (Procyon lotor) is a species that has likely benefited from environmental conditions that followed European settlement of North America. As such, the raccoon has experienced vast range expansion during the ...