Animal Reproduction II

These flashcards cover key vocabulary and concepts from the lecture on animal reproduction, including definitions and explanations of various reproductive strategies and cycles.

Estrous cycles

Reproductive cycles in animals that include periods of heat or estrus.

Menstrual cycles

Reproductive cycles in humans and some primates characterized by the shedding of the uterine lining.

Spontaneous ovulation

Ovulation that occurs at regular intervals regardless of mating.

Induced ovulation

Ovulation that occurs as a result of mating.

Positive feedback in birth process

Mechanism where the birth process intensifies until delivery occurs.

Decoupling steps in reproduction

Separation of reproductive steps allowing flexibility and environmental coordination.

Embryonic diapause

A state where embryonic development is paused, allowing for timing adjustments.

Delayed implantation

Postponement of blastocyst implantation in the uterine wall.

Semelparity

Reproductive strategy where an organism reproduces only once in its lifetime.

Iteroparity

Reproductive strategy where an organism can reproduce multiple times in its lifetime.

Seasonal reproductive cycles

Reproductive strategies in animals that are synchronized with seasonal changes.

Bet-hedging in reproduction

A strategy to spread out reproductive success over multiple cycles to reduce risk.

Photoperiod

The length of day that influences the timing of reproductive cycles in animals.