91603 Responses: Intraspecific Relationships

intraspecific

relationships that occur between members of the same species

cooperative

relationships that are mutually beneficial within a species

competitive

relationships that are mutually harmful within a species

agonistic behaviour

any social behaviour related to hostility

aggressive behaviour

any social behaviour related to fighting

territory

small actively defended area that contains precious resources

home range

large area that animals will use for food but is not actively defended

hierarchy

system of organisation formed where resources are unevenly distributed to stronger individuals

group living

animals dwell together for protection, acquiring resources and finding mates

alpha

highest ranking individual in hierarchy, most likely to pass on alleles

omega

lowest ranking individual in hierarchy, least likely to pass on alleles, but acquires protection from the group

lek

an arena where males gather to display for females

dominant

strongest individual with best displays

submissive

weakest individual with poor displays

courtship

process of finding a mate

mating

act of pairing a male and female for reproductive purposes

sexual dimorphism

differences between sexes in secondary sexual characteristics, often due to sexual selection

parental care

investment of time and resources by parents into offspring

oviparous

egg laying

viviparous

birthing live young

marsupial

pouched animal

k strategy

few offspring, large investment by parents

r strategy

many offspring, small investment by parent

altruism

unselfish concern for others' welfare in species (unrelated)

kin selection

the process by which evolution selects for individuals who cooperate with their relatives

monogamy

singular mate at a time

polygyny

one male, many females mate

polyandry

one female, many males mate

polygynandry

multiple males, multiple females