Lecture 4a- Social Organisation Flashcards
Poole (1985) criterea for classifying mammalian social systems? (4)
1) Spacial distribution of males and females relative to one another
2) Presence/Absence of territoriality
3) Presence/Absence of amicable associations between individuals
4) Patterns of mating and reproductive output
3 different types of solitary social system?
Inter- sexual territory
Intra- sexual territory
Non-territorial
Example of inter- sexual territory?
Short-tailed shrew
Example of intra- sexual territory?
Stoat
Example of non- territorial?
Virginia Opossum
Most mammals are..
Solitary
What is social monogamy?
Where one male spatially associated with one female
What is genetic monogamy?
Where one male sires all offspring of one female
What are the three types of monogamous social systems in mammals?
Grade 1, Grade 2, Grade 3
What is a grade 1 monogamous society?
Male and female defend a common territory
Young driven out after weaning
Example of a grade 1 monogamous species?
Klipspringer
What is a grade 2 monogamous society?
Male and female defend a common territory
Young not driven out after weaning
Example of a grade 2 monogamous species?
Beaver
What is a grade 3 monogamous society?
Multi female and multi male group
Single pair breed
Example of a grade 3 monogamous species?
Grey wolf