Ready Made Csv Flashcards
(53 cards)
What are proximate explanations?
How? Mechanisms of behavior (hormones, cues, learning, genes).
What are ultimate explanations?
Evolutionary functions (selective advantages, phylogeny).
What are the 4 levels of analysis, and state wether ultimate and proximate?
Adaptive value (ultimate), evolutionary history (ultimate), neural-hormonal (proximate), genetic-developmental (proximate).
What is a scientific hypothesis?
Testable and falsifiable proposed explanation.
How can hypotheses in Behavioral Ecology be tested?
1) Comparison within species, 2) Experiments, 3) Comparison among species.
What is sexual selection?
Selection due to variance in mating success.
What is postcopulatory mate choice?
Females influence paternity after mating via sperm selection or storage.
Why does sexual conflict occur?
Optimal outcomes for males and females often differ.
What are direct benefits of mate choice?
Territory, parental care, nuptial gifts, protection.
What are indirect benefits of mate choice?
Offspring genetic quality, attractive sons.
What is sensory bias?
Male traits exploit pre-existing female sensory preferences.
What is Fisherian runaway?
Preference and trait co-evolve, producing ‘sexy sons.’
What is the Hamilton-Zuk hypothesis?
Females choose mates with fewer parasites (good genes).
What is monogamy?
One mate (rare in mammals, common socially in birds).
What is polygyny?
One male mates with multiple females.
What is polyandry?
One female mates with multiple males.
What is promiscuity?
Both sexes mate with multiple partners.
What is lek polygyny?
Males display in leks; females choose mates.
What is a conditional strategy?
Tactic depends on individual state (size, age, condition).
What is an Evolutionarily Stable Strategy (ESS)?
Strategy stable against invasion by alternative strategies.
Why is male parental care more common in fish?
External fertilization provides higher paternity certainty.
What is parental investment?
Trade-off between current offspring care and future reproduction.
What is brood parasitism?
Laying eggs in others’ nests; hosts provide care.
What are parental effects?
Parental experience influences offspring phenotype via environment, hormones, epigenetics.