Natural Resources Ecology - Reproductive Strategies

Flashcards covering key concepts and vocabulary from the lecture notes on reproductive strategies and related ecological concepts.

Life history traits represent the schedule of an organism’s _ and are shaped by trade-offs.

life

Reproductive strategies can be sexual or _ and organisms can evolve as separate sexes or as hermaphrodites.

asexual

In sexual reproduction, male sperms fertilize female eggs to form a _ that contains a combination of both parents’ chromosomes.

zygote

The _ Hypothesis suggests that sexual reproduction allows hosts to evade rapidly evolving parasites.

Red Queen

Sex organs are costly, mating behavior is risky, and there is a _ of meiosis in sexual reproduction.

cost

Mixed mating occurs when mates are available, individuals _; when mates are unavailable, individuals self-fertilize.

outcross

According to frequency-dependent selection, the rarer phenotype in a population is favored by _ selection.

natural

In environmental sex determination, the sex of an individual is determined largely by the _; common in reptiles.

environment

Sexual dimorphism refers to the difference in the _ between males and females of the same species.

phenotype

The _ principle suggests that the greater the handicap an individual carries, the greater its ability must be to offset that trait.

handicap

The Good genes hypothesis states that individuals choose mates that possess a superior _ .

genotype