metabolism and adverse conditions 2.5 Flashcards
structural ways of surving adverse conditions
smaller appendages to stay warm
size: surface area to volume ratio
insulation: fat and feathers
colour of fur
behavioural responses to adverse conditions
collective dens
snow roost
an organism temporarily stops growing and developing.
dormancy
what decreases during a period of dormancy
metabolic rate heart rate breathing rate body temperature
predictive dormancy
occurs before the onset of unfavourable conditions
consequential dormancy
occurs after being exposed to adverse conditions
where does predictive dormancy happen
places with predictable and consistent conditions
period of inactivity in mammals associated with physiological changes resulting in a lowering of metabolic rate to conserve energy in times of low temperature extremes
hibrnation
a form of dormancy that enables some animals to survive excessively hot and dry conditions. the rate of metabolism drops for weeks or months until conditions are more favourable
aestivation (only consequential)
short term reduction in activity, metabolic rate, heart rate, breathing and temperature for part of the 24 hour cycle
daily torpor
strategy to avoid adverse conditions
migration
ways of marking migratory animals
tagging
ringing
innate behaviour
inherited and inflexible
plays a primary role in migration
learned behaviour
begins after birth and gained with experience
plays secondary role in migratory behaviour