5.1-5.3 Flashcards
Optimal foraging model
Mimizes the costs and maximizes the benefits
Mate choice copying
Behavior of individuals copy others mate choice
Game theory
Evaluatesbalternative strategies in situations where outcome depends on the strategies of all individuals involved
Altruism
Decreased an individuals fitness but increases the groups
Inclusive fitness
Profiliration of one’s genes by having kids and helping family members have kids
Coefficient or relatedness (r)
Hamilton rule
RB>C
Kin selection
Natural selection that favors altruistic
Reciprocal alturism
Limited mostly to species
When they’re likely to meet again
Life tabkes
Age specific summaries of the survival patterns of populations.
Follow a short from life to death
Populations w no migration or emigration
Determinants of populations size
Survivorship
Reproductive rates
Survivorship curve
Age vs log survivorship
Reproductive table
Age specific summary of reproductive rates of population
If immigration and emigration are ignored:
(DeltaN/DeltaT) = B-D
DeltaN change in population size
DetlaT time interval
Average number of births and deaths per individual of a certain time
B=bN
D=mN
B=bN
D=mN
b= per capita birth rate
m percapita death rate
N populaton size
What is the rewritten form of the population growth equation?
DeltaN / Deltat = bN - mN
This equation represents the change in population over time considering birth and death rates.
What does the per capita rate of increase (r) signify when r > 0?
Populations grow
A positive per capita rate indicates that the number of individuals in the population is increasing.
What does the per capita rate of increase (r) signify when r < 0?
Populations shrink
A negative per capita rate indicates that the number of individuals in the population is decreasing.
What is the condition for zero population growth in terms of the per capita rate of increase?
r = 0
Zero population growth occurs when the birth rate equals the death rate.
How can the per capita rate of increase be expressed in terms of birth and death rates?
r = b - m
This formula shows that the per capita rate of increase is the difference between the birth rate (b) and the death rate (m).
What can change in population size be expressed as?
dN
This represents the change in population size.
What formula represents Exponential Population Growth?
DeltaN/deltaT = rN
This formula describes how population changes over time.
How can the instantaneous growth rate be expressed?
dN = rN
This indicates the relationship between population change and growth rate.
What does exponential population growth represent?
Population increase under idealized conditions
This scenario assumes maximum growth potential.
What is denoted as rma in population growth?
Intrinsic rate of increase
This is the maximum rate of increase for a population.
Fill in the blank: The instantaneous per capita rate of increase is represented as _______.
rinst
This term relates to the actual growth rate of the population.
