Biology 2601A/B Lecture Notes - Lecture 4: Ice Nucleus, Supercooling, Ice Crystals

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Body temp some important physiological thresholds processes are not working as well chill coma = reversible state of. There is a little increase in temp when the insect freezes because the freezing of. Insects are very good at surviving the cold they don"t die, come back each season. When it starts to get cold, the photoperiod is changing, these are cues for insects better cue than temperature because temp is very unreliable, can be very variable. These cues cause them to make behavioural, physiological and biochemical changes to survive winter. Behavioural: monarch butterfly migrating somewhere warmer in the winter, bees disengaging the muscles from their wings and shiver their muscles to produce enough heat to warm themselves to 34c. Insects are ectotherms when it gets cold, their body temp gets cold as well. White line is body temp of the insect as temp decreases, so does the. When they"re warm, they"re fine, as they start to cool down; they pass.

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