BIOL 304 Lecture Notes - Lecture 19: Evolutionary Developmental Biology, Mortality Rate, Sockeye Salmon
Document Summary
Number of offspring is correlated with body size. Survival & birth rate contribut to fitness. Flowers: can be used to calculate expected offspring production for a certain age. There needs to be good timing between breeding & food. European bird populations start breeding earlier to synch with food availability. Suicidal reproduction, die off in streams after spawning: a rigorous trip to and away from freshwater, should use off all reproductive ressources when you can (when freshwater is finally reached) Selection experiments can be done to observe changes in life history (reproduction) Ex: selection of hens & changes in egg production.
