WFC 151 Lecture Notes - Lecture 3: Grizzly Bear, Vireo, California Condor
15 Oct 2016
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Document Summary
Habitat: combination of resources (e. g. , food, cover) and conditions (e. g. , temperature, absence of enemies) that promotes occupancy. Food: energy and nutrients the animals need for maintenance, growth, and reproduction. Some animals get all their water from their food; some need to drink water directly. Black-throated sparrow: put pans of water in certain areas and did not in others, larger population in places where they had available, free-standing water. Cover: the structure can be anything as long as it provides protection from extreme cold/heat and/or predators. Thermal stress: dusky grouse: they like the needles and buds of douglas firs for eating, they fly over to a sub-alpine tree during the winter because they have denser foliage for protection against cold and predators. Predators: snowshoe hare: molt to white fur during the winter and brown in the spring. They dive into shrubs to hide/get away from predators; it obstructs attacks: pronghorn: always live in open habitats and has visibility.
