Polyandry occurs when females mate with multiple males within a given breeding period.
Life history refers to how an organism allocates its time and energy between growth and reproduction.
One model involves organisms with low survival rates investing early in reproduction, while the other involves those with higher survival rates investing in growth and delayed reproduction.
Sneaker males mature earlier and invest more in reproduction than growth, sneaking fertilizations while parental males are courting females.
Monogamy refers to having one mate, which can be for life or for a specific breeding bout.
Iteroparity is when an organism has multiple reproductive events over time, such as birds mating every spring.
Female mimic males behave like females to sneak fertilizations while parental males are distracted by courting actual females.
Polygyny is a mating system where one male mates with multiple females within a breeding bout.
Parental care is any resource offered to the young after fertilization, including brooding, provisioning food, and ensuring safety.
Parental males are those that allocate energy toward growth initially, mature later, build nests, and provide care for their offspring.
Organisms can choose to reproduce more and not survive as long, or survive longer and reproduce more slowly.
Semelparity is when an organism has a single massive reproductive event, such as annual plants or Pacific salmon.
Parental males can recognize their eggs through chemical cues and may eat eggs that are not fertilized by them.
Promiscuity involves individuals having multiple random mates within a given period of time.
Alternative reproductive tactics are different behaviors within the same species and sex that individuals use to gain access to mates.
Frequency dependent selection is a process where the success of a reproductive tactic depends on its frequency in the population.