3.6 - Social Behaviour Flashcards
What do dominant individuals in a social hierarchy carry out?
Ritualistic (threat) displays
What is a Social hierarchy?
It is a rank order within a group of animals consisting of a dominant and subordinate members
What do subordinate individuals in a social hierarchy carry out?
Appeasement behaviour to reduce conflict
What do social hierarchies increase the chances of?
The dominant animals favourable genes being passed on to offspring
Why do animals often form alliances in social hierarchies?
To increase their social status within the group
Who does co-operative hunting benefit?
BOTH, subordinate and dominant animals
What does co-operative hunting enable?
Enables larger prey to be caught and increases the chance of success
What do social defence strategies increase the chances of?
Survival
- as some individuals can watch for predators whilst other forage for food
Why do groups adopt specialised formations when under attack?
To protect their young
Who does an Altruistic behaviour affect?
It harms the donor individual but benefits the recipient
What is Reciprocal altruism?
Where the roles of donor and recipient later reverse, often occurs in social animals
Who does Kin selection affect?
The donor will benefit in terms of the increased chance of survival of shared genes in the recipients offspring or future offspring
