Exam 2: Reproductive Physiology Flashcards
What is sexual selection?
Genetic selection for traits or behaviors based on their sexual success
What do induced ovulation and spontaneous ovulation both require?
sexual synchronization
What is induced ovulation
males and females must be around each other for ovulation to occur
What is spontaneous ovulation?
Males do not need to be present for females to ovulate
What types of animals experience spontaneous ovulation?
Social
Is induced or spontaneous ovulation more costly?
Spontaneous
What environmental factors affect fertilization?
Environmental cues, sexual development, attraction, and barriers to copulation
What environmental factors are successful offspring affected by?
Embryonic development, offspring provisioning, parental care, and predator evasion
What are the primary influences on reproductive strategies?
Photoperiod and temperature
Does photoperiod or temperature have a stronger influence on reproductive strategies?
photoperiod
What is semelparity?
When an organisms can only conduct one reproductive event in its lifetime
Why does semelparity typically occur?
High stress during reproductive periods causes high cortisol that does not decrease, leads to organismal death
Why is semelparity advantageous?
A lot of energy it put into one reproductive event, increasing likelihood of success
What is iteroparity?
When an organism can conduct multiple reproductive events in one lifetime
What are the two types of offspring provisioning?
Prenatal and postnatal
