Mark Thonhoff
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View article: Lack of capture‐induced mortality of neonates associated with variation in handling protocols
Lack of capture‐induced mortality of neonates associated with variation in handling protocols Open
Neonate survival is among the primary demographics underpinning ungulate populations. Though few studies have quantified handling‐induced effects on neonates, there is concern from stakeholders that handling neonates affects survival. In r…
View article: Shifts in risk sensitivity and resource availability alter fat stores for a large mammal following extreme winter conditions
Shifts in risk sensitivity and resource availability alter fat stores for a large mammal following extreme winter conditions Open
For species that inhabit environments where resource availability may be unpredictable, balance of resource allocation to life‐history traits can have heightened consequences for survival, reproduction, and ultimately, fitness. Acquisition…
View article: Behavior, nutrition, and environment drive survival of a large herbivore in the face of extreme winter conditions
Behavior, nutrition, and environment drive survival of a large herbivore in the face of extreme winter conditions Open
For many species, behavioral modification is an effective strategy to mitigate negative effects of harsh and unpredictable environmental conditions. When behavioral modifications are not sufficient to mitigate extreme environmental conditi…
View article: Maternal effects and the legacy of extreme environmental events for wild mammals
Maternal effects and the legacy of extreme environmental events for wild mammals Open
The nutrition of wild animals affects their ability to survive, reproduce, and ultimately persist in unpredictable environments. Nutrition interacts with the life history of animals across different scales (Smiley, LaSharr, et al., 2022), …
View article: Evaluating risks associated with capture and handling of mule deer for individual‐based, long‐term research
Evaluating risks associated with capture and handling of mule deer for individual‐based, long‐term research Open
Capture and handling techniques for individual‐based, long‐term research that tracks the life history of animals by recapturing the same individuals for several years has vastly improved study inferences and our understanding of animal eco…
View article: Biomarkers of Animal Nutrition: From Seasonal to Lifetime Indicators of Environmental Conditions
Biomarkers of Animal Nutrition: From Seasonal to Lifetime Indicators of Environmental Conditions Open
Nutrition underpins survival and reproduction in animal populations; reliable nutritional biomarkers are therefore requisites to understanding environmental drivers of population dynamics. Biomarkers vary in scope of inference and sensitiv…
View article: Short‐term responses to a human‐altered landscape do not affect fat dynamics of a migratory ungulate
Short‐term responses to a human‐altered landscape do not affect fat dynamics of a migratory ungulate Open
According to risk‐sensitive foraging theory, animals should make foraging decisions that balance nutritional costs and gains to promote fitness. Human disturbance is a form of perceived risk that can prompt avoidance of risky habitat over …
View article: Migration distance and maternal resource allocation determine timing of birth in a large herbivore
Migration distance and maternal resource allocation determine timing of birth in a large herbivore Open
Birth timing is a key life‐history characteristic that influences fitness and population performance. For migratory animals, however, appropriately timing birth on one seasonal range may be constrained by events occurring during other part…
View article: Ungulate migrations of the western United States, Volume 1
Ungulate migrations of the western United States, Volume 1 Open
First posted November 12, 2020 For additional information, contact: Associate Director, Ecosystems Mission AreaU.S. Geological SurveyMail Stop 300, 12201 Sunrise Valley DriveReston, VA 20192 Across the western United States, many ungulate …