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Full-Text Articles in Life Sciences
Ecological Implications Of Foraging And Life-History In Three Cold-Adapted Species, Andrew Von Duyke
Ecological Implications Of Foraging And Life-History In Three Cold-Adapted Species, Andrew Von Duyke
Dissertations, Master's Theses and Master's Reports
This research investigates the ecology of: ringed seals (Pusa hispida), moose (Alces alces), and bowhead whales (Balaena mysticetus). Each of these species draws upon specialized strategies to meet the physical demands of life in their extreme environments. However, they are currently experiencing unprecedented changes in their habitats. This work adds to what is known about the behavior, physiology, and population dynamics of cold-adapted species—providing insights of value for an improved understanding of foraging and life-history theory, and informing conservation and ecosystem monitoring efforts. Chapter 1 provides a brief introduction to the scope of work …
The Dynamic Nature Of Forage Preference And Microhistological Atlas, John J. Henderson
The Dynamic Nature Of Forage Preference And Microhistological Atlas, John J. Henderson
Dissertations, Master's Theses and Master's Reports
Moose, Alces alces, are among the most iconic species in the northern circumpolar temperate forests. Multiple factors influence moose density. Winter is a time of severe dietary stress for moose because deciduous trees are leafless and available forage is limited to conifers with high plant secondary metabolites or low-energy deciduous twigs. Forage preference depends on the intrinsic forage properties, abundance of forage and environmental stressors. These stressors include predation risk and severity of climate that affect forage efficiency. We examined forage preference of moose on Isle Royale National Park during winter over a ten-year period. Diet was divided into …