BIOL 1902 Study Guide - Midterm Guide: Ruffed Grouse, Torpor, Toboggan
6 May 2019
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Natural history midterm notes- doc 5 of 7. Still hatch eggs, but baby turtle hatchling eggs stay underground all winter because they are freeze tolerant (adults are not freeze tolerant) Foxes, raccoons and skunks all eat turtle eggs. Raccoons, porcupines are active sometimes during winter, but when its super cold, go to dens/undergo lethargy maintain a warm body temperature but heart rate slow down. These animals aren"t true hibernators, b/c they are easily aroused throughout the winter: Chipmunks undergo longer period of torpor (light hibernation: lower heartbeat, low temperature, but awaken every few days to eat (store food for winter eats) Bats undergo a light hibernation too: high heartrate (24-36 bpm, low body temperature, easily aroused. Groundhog (world"s largest true hibernator) & jumping mice: very low heart rate/ body temperature, curl into balls so surface area to volume ratio conserves energy/body heat. Many animals migrate south for winter: monarch butterflies migrate to mexico, common green darner (dragonflies, red bats, birds.
