BI111 Lecture Notes - Lecture 30: Senescence
Document Summary
Lifetables: can make predictions for future gen. Life histories: all the decs that make up org"s life, sched, freq, duration of imp life events, patts of growth, maturation, reprod, allocation of resources, max number of surviving offspring. Evolution of life histories: influ"d by orgs phy and eco enviro, dev rate, age of sex mat/first reprod, number of offspring/freq of breeding, level of parental investment, senescence and death. Fecunidty vs parental care: fixed energy budget trade off bt fecund or parental care, qual vs quant, many young little care, few young more care. Qual vs quant: quant- rats, turtles, qual whale and coconuts. How often to breed: semel big bang, one reprod episode, devote all energy, max fecundity, death after reprod, itero slow and steady, mult reprod eps, some energy for each event. Iteroparity vs semelparity: plateau itero, hold back, save for later, max diff bt 100% effort semel, favoured by selected to have max eff.
