PDF-The males and females of many passerine species share common plumage

in Chapter 6 has paragraphs relating to cloacal protuberances. 45 7824 6374 03 PUNJAB 07 Ludhiana M Corp City 1613878 874773 739105 173021 92492 80529 1230218 691161 539057 845 871 8538 8835 8185 03 PUNJAB 15 Amritsar UA UA 1183705 630114 553591 115368 63238 52130 904190 495804 408386 879 824 8464 8746 8144 04 C A) males invest less in reproduction. B) access to females limits male reproduction, but not the reverse. C) both of the above. 2) Fisherian runaway. A) means that selection favors faster running. B) depends on a genetic correlation between preference and trait genes. Sarah Rajala and Moira Bixby. The big question: . Why do females sleep around?. As a rule, loose females have more and healthier children. The reasons for this vary enormously, however, from species to species. . Monogamy- general facts. Only 5% of mammals are monogamous. Mammals tend to form s. ocial groups. Obligate monogamy- . biparental. care. Facultative monogamy- dispersal. Both disproven!. Organisms in polygamous species are more widely dispersed. EarlyView(EV):1-EV ThecrestofP.cristatusisapproximately5cminlength,soonemightexpectthatitisfairlyinexpensivetogrowandmaintaincomparedtothe150cmlongtrainofover200feathers(Petrieetal.1996).Thisraisestwo Please Do Now: If animals are capable of gaining an advantage by communicating dishonestly, why haven’t all animals evolved to be “liars”.. Agenda. Do Now. Video. Mimicry/Camouflage Notes. Data Analysis. What is Behavior?. Behaviors describe how organisms interact with their environment, with members of their own species, and with members of other species.. The . Hows. & Whys of Behavior. Biologists can ask 4 different types of questions about animal behavior.. Science Project.. What Is A Habitat?. habitat is an ecological or environmental area that is inhabited by a particular species of animal, plant, or other type of organism.. [1][2]. It is the natural environment in which an organism lives, or the physical environment that surrounds a species population.. How it’s accomplished. Diverse strategies have evolved. Female defense . polygyny. Resource defense . polygyny. Lek. . polygyny. Scramble competition . polygyny. Factors. Female distribution. Food availability. Birds. 90% of species. 21% of those end in “divorce”. Not always death due us . part. http://animal.discovery.com/videos/cute-and-cuddly-dads-trumpeter-swan-dads.html. Monogamy. Mammals. Less than 3% species. What would you note about the two left hand birds?. Identify and age this species.. What species is shown here, and what plumage is it in?. Identify both birds.. What else can be noted about the bottom bird?. Pheromone . communication . is . thought to be very be . important in the location of a mate.. Check out our . live . specimens. !. Conflict. can play a part in the mating rituals of . some beetle species . Advanced Higher Biology. Miss A Aitken. Courtship and Fixed Action Patterns. Courtship. is the process of using behaviours and characteristics to attract a mate.. An increased chance of sexual reproduction can increase evolutionary fitness.. sexual dimorphism. .. Male birds often have brightly coloured feathers to make them more attractive to female birds; females have more dull-coloured . feathers.. Male birds’ colourful feathers allow them to demonstrate their ‘fitness’ as a mate to female birds. They are often bigger and also behave differently to female birds. .