BIOL10001 Lecture Notes - Lecture 22: Malleefowl, Mound Builders, Cooperative Breeding
30 Jul 2018
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Document Summary
Convergent evolution: evolution: similar features in unrelated species, many australian species resemble northern hemisphere spp (convergent. English wren & australian wren: many australian species corvids related to crows, proves these australian birds not derived from northern hemisphere . Diversity in breeding biology: mating systems, strong relationship associated between mating system and parental care more closely related to eachother than their n. h look-alikes. Monogamy: one male, one female, pair bond: 1 season to a life time, mates incubate & raise chicks together. Albatrosses single chick takes up to 280 to reach dependence: parents take turn on foraging trips, demands for chick rearing favour monogamy, most widespread pattern. Black swans: males & females pair for life. Polyandry: 1 females mates with several ales, separate clutches for each male, may be successive or simultaneous, male raises offspring. Southern cassowary: female lays for up to 3 males, male incubates 2 months, extrnded male care: 9 months.
