BIO 3176 Lecture Notes - Lecture 19: Scramble Competition, Superb Starling, Zygosity
Document Summary
Indirect bene ts - those derived from getting more genes. Fertility insurance - fertility varies among individuals ; it"ll be too bad to mate with one individual and his fertility isn"t good. Good genes - there"s this searching for quality genes and the more individuals we interact with sexually the more probable one of them will have the best genetic makeup. More resources - the more males there are, the more resources there are for female and her offsprings. More care - male parents stick around and provide care , this is good. Better protection - protection of the offspring from all challenges. ex. sociality ; more males paying attention/watching out for offspring is a good thing. Transmission of diseases - these are common in animals cause it"s a great way for diseases to propagate themselves. Stds are one of the consequences of polyandry. Through immune function evolution protects us against diseases.
