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Article Synopsis
- Understanding the nutritional properties of foods is crucial for managing wildlife populations, specifically moose, as they balance macronutrients like protein and carbohydrates while foraging.
- A study in Norway highlighted that moose primarily derive their energy from carbohydrates (74.2%), mostly from deciduous tree browse, particularly willows, which made up 51% of their average diet over a 5-day period in summer.
- Moose regulate their nutrient intake by choosing foods that closely match their macronutrient targets and demonstrated flexibility in their feeding strategies, indicating that even small variations in diet can help them achieve nutritional balance.
Increased intake of tree forage by moose is associated with intake of crops rich in nonstructural carbohydrates.
Ecology
September 2024
Division of Forestry and Forest Resources, NIBIO, Ås, Norway.
Animals representing a wide range of taxonomic groups are known to select specific food combinations to achieve a nutritionally balanced diet. The nutrient balancing hypothesis suggests that, when given the opportunity, animals select foods to achieve a particular target nutrient balance, and that balancing occurs between meals and between days. For wild ruminants who inhabit landscapes dominated by human land use, nutritionally imbalanced diets can result from ingesting agricultural crops rich in starch and sugar (nonstructural carbohydrates [NCs]), which can be provided to them by people as supplementary feeds.
View Article and Find Full Text PDFIncreased summer temperature is associated with reduced calf mass of a circumpolar large mammal through direct thermoregulatory and indirect, food quality, pathways.
Oecologia
April 2023
Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden.
Climate change represents a growing ecological challenge. The (sub) arctic and boreal regions of the world experience the most rapid warming, presenting an excellent model system for studying how climate change affects mammals. Moose (Alces alces) are a particularly relevant model species with their circumpolar range.
View Article and Find Full Text PDFCoprophagy, the eating of feces, has been documented in a wide range of species but appears to be rare or difficult to detect in deer (Cervidae). Here, we report the first observation of coprophagy in moose , which was recorded using camera collars on free-ranging moose in Norway. The footage shows an instance of allocoprophagy by an adult female moose in spring (May).
View Article and Find Full Text PDFWith accelerated land conversion and global heating at northern latitudes, it becomes crucial to understand, how life histories of animals in extreme environments adapt to these changes. Animals may either adapt by adjusting foraging behavior or through physiological responses, including adjusting their energy metabolism or both. Until now, it has been difficult to study such adaptations in free-ranging animals due to methodological constraints that prevent extensive spatiotemporal coverage of ecological and physiological data.
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