Life Histories Flashcards
Ecological Scenario
Can live for more than a thousand years and shades a nearby stream
Sequioa sempervirens
Redwood Tree
Ecological Scenario
Lives as larvae in the stream for a year, then live as an adult for only a day when it will mate and lay hundreds of eggs in the stream
Mayfly
Ecological Scenario
A fish that lives further downstream, laying thousands of eggs when reproducing
Trout
Ecological Scenario
Cultivate and fish the nearby stream, producing two offspring
Man & Woman
Consists of the adaptation of an organism that influence aspects of its biology such as the number of offspring it produces, its survival, and its size and age at reproductive maturity
Life History
Because all organisms have access to limited energy and resources, there is a […] between the number and size of offspring
trade-off
[…] is limited either by conditions in the external environment such as food availability or by internal constraints such as the rate at which the organism can process food
Rate of energy intake
The […] underscores the fact that if an organism uses energy for one function, it reduces the amount of energy available for other functinos
Principle of Allocation
Who said that fish show more variation in many life history traits than any other group of animals?
Miller (1995)
Who studied and what organism was used to study gene flow?
Tom Turner & Joel Trexler
Percidae (darters)
Refers to the number of eggs produced by an organism
Fecundity
What relationship exists between egg size and number?
Negative
What relationship exists between seed size and number?
Negative
The allocation of energy, time, and other resources to the production and care of offspring
Reproduction Effort
Refers to the per capita rate increase and is a selection favoring a higher population growth rate
r Selection
