exam 4 study guide
exam 4 study guide EEOB 3420
Popular in Animal behavior
Popular in Biological Sciences
This 4 page Study Guide was uploaded by Rebecca J Elting on Sunday March 20, 2016. The Study Guide belongs to EEOB 3420 at Ohio State University taught by Dr. Jackie in Winter 2016. Since its upload, it has received 36 views. For similar materials see Animal behavior in Biological Sciences at Ohio State University.
Reviews for exam 4 study guide
Great notes!!! Thanks so much for doing this...
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 03/20/16
Animal Behavior and Ecology Exam 4 Study Guide: Social Groups Benefits of a Social Life include: Defense against predators, Allopreening, Information center, Male opportunity to cuckold, Female opportunity to interfere with rival’s reproduction (egg tossing, egg dumping) Costs of a Social Life include: Clumped individuals conspicuous to predators, Increased disease transmission, More competition, Energy expended to maintain dominance, Males vulnerable to cuckoldry, Females vulnerable to reproductive interference (egg tossing, egg dumping). Alturism: Hurting own reproductive success in order to benefit another Group selection: Proposed by WynneEdwards in 1962 Groups or species with selfsacrificing (altruistic) individuals are more likely to survive than those groups without altruists, leading to the evolution of groupbenefiting altruism The process that occurs when groups differ in their collective attributes and the difference affect the survival chances of the groups Nonterritorial individuals are avoiding depletion of the food supply, which would jeopardize the species’ longterm survival Sterile castes of insects (ants) Fall of group selection: Reciprocity and kin selection. Support for Kin Selection: Selection resulting from differences in the fitness of individuals (direct) and their relatives (indirect). Kin = relatives (genetic ‘extensions’ of self) Natural selection based on genes can be passed on by two pathways: 1. Direct descendants. (your offspring) => Direct Fitness 2. Indirect descendants (offspring of relatives) => Indirect Fitness Kin selection is natural selection expanded to both pathways. Inclusive fitness: direct and indirect fitness If given a choice to feed kin/nonkin young, should feed kin Supported by data from many birds and mammals Relatedness: Parentoffspring: 0.5, Aunt/Uncleniece/nephew: 0.25 Choice One offspring: 0.5 Three niece/nephew: 3*0.25 = 0.75 Multiple adults raising offspring is called Cooperative Breeding Cooperative Breeding: Aggression is lower in family groups Only genetically different Argentine ant supercolonies in California attack each other Anemone colonies contain castes of scouts, warriors, & reproductives; fight against other colonies Evolution of Eusocial Behavior Cooperative care of the brood, Overlap of adult generations, Reproductive division of labor Some members specialized for reproduction (queens or kings) Others specialized for foraging, nest construction, defense and broodrearing (workers) Sacrifice their own reproduction: reproductive altruism Evolution of a stable reproductive skew Eusocial insects All: Ants and Termites Range of sociality (solitary to eusocial): Bees and Wasps Some eusocial: Aphids, Beetles and Thripscts Only Eusocial mammal is the Naked Mole Rat! Eusocial systems can be haplodiploid or diploid. Haplodiploid tend to be more females while diploid systems have a more equal balance. Social groups cannot develop due to a “Creator;” intelligent design is not dead. Honey Bees have a waggle dance in which they preform to show the other worker bees where food is. Developed through evolution, proof is found in other members of the genius Apis Some mark a trail with pheromones. Some lead a group to the food Some buzz a certain way to tell how far away the food is, etc.
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'