Parental Care Flashcards
what is behavior that facilitates offspring growth, development and/ or survivorship after fertilization
parental care
maternal is provided by
mother
paternal is provided by
father
alloparental is provided by
non-parent
what are examples of direct interactions with young (4)
- incubation/thermoregulation
-retrieval
-food provisioning - pregnancy and lactation
what are example of indirect parental care (2)
- nest building
- defense
what is time and energy invested in the production and care of offspring
parental investment
what is parental investment subdivided into
mating effort
parental care
what is mating effort and parental care generally classified into?
mating system
mating system for monogamy
biparental care
mating system for polygyny
maternal care
mating system for polyandry
parental care
parental care evolves when the fitness benefit to the offspring is less than or greater than the fitness cost to the parents
greater than
expression of parental behavior generally correlates with ?
offspring age and development
what is parental care linked to
internal and external fertilization
examples of internal stimuli
hormones (estrogens, progestins, prolactin, oxytocin)
genetics
examples of external stimuli
offspring
what kind of exposure to offspring induced parental care
repeated
what kind of behavior in offspring elicits parental care
begging
what eliminates parental care
removal
are birds biparental
yes
when is there an increase in steroids, lh, fash
courtship and egg laying
when is there an increase in prolactin
incubation and post-hatching care
placental mammals are also called
eutherians
what are brain regions involved in avian parental care
preoptic area
ventromedial nuclei
paraventricular nuclei
mothers with higher stress hormones found their infant’s odor more what?
rewarding
