BIOL 1902 Lecture Notes - Lecture 1: Plants And Animals, Snowshoe Hare, Disruptive Coloration
27 Oct 2017
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Document Summary
Nh is the observation of living plants & animals flora (plant) and fauna (animal) and their. Interactions between animals and animals interactions (observation science) Grasslands form vertical lines (grassland birds camouflage) ex. Response to camouflage but does not mean the animal is intelligent itself. Light and dark & colors, patterns contribute to background matching and concealment. Gray tree frog bark mimic: camouflages into bark, feeds at night, color changes but pattern stays the same. Eastern screech-owl bark mimic (only during day time), hunts at night. Snowshoe hare (varying hare) seasonal color change. Many songbirds have eyelines and eyestripes for concealment. Disruptive patterns: break up the outline/shape of animal. Killdeer have breast bands which are a sign of dp. Canada goose have a chin strap which helps them hide, when hiding the strap breaks off and their neck goes down. Common loon has necklace like cg, breaks off strap to hide.
