Populations
Vital statistics of a population.
What are demographics?
B and b.
What is total numnber of births and per capita birth rate?
What type of selected populations will likely have an older maturation age and a lower number of offspring?
What are K selected populations?
The trait of producing few offspring many times in life. May be continuous or seasonal.
What is iteroparity?
Follow the survival patterns of a ____
from birth to death.
A ______ is a group born at the same time (of the same age
What is a cohort?
Population dispersion where individuals are
evenly spaced.
What is uniform dispersion?
Carrying capacity.
What is K?
As population density increases, these have no effect on b and/or d.
What are density-independent factors?
The idea that energy invested (used) in one trait/characteristic can’t be used for another. It results in trade-offs.
What is the principle of allocation?
Population surviviorship curve of most birds, small mammals, and reptiles. Often in species that show parental care & moderate rates of depredation in adults.
What is type II?
The survivorship curve associated with low mortality of juveniles, and high mortality in the oldest individuals.
What is type 1?
r.
What is per capita growth rate?
R selected populations should occur when resources are _____ and organisms have ____ lifespans.
What is abundant and short?
The trait of producing many offspring once in a lifetime.
What is semelparity?
What is small mussels don't provide enough sustenance/energy and large mussels take up too much time and energy.
The most common type of dispersion followed by the least common type of dispersion.
What is clumped and random?
r<0.
What is the population size is decreasing.
Territoriality, Toxic Waste, predator-prey interactions are all examples.
What are density-dependent factors?
Individuals in type I survival ship curves likely spend ____more time giving parental care than those in type II survival ship curves.
What is less?
The model which predicts that the behavior that maximizes the difference between the costs and benefits of the behavior will result in the highest fitness (increased Survivorship and Mating Success)
What is the optimality theory?
The likely survivorship curve in a population of California poppies where only 57 flowers reach maturation out of 78,000 seeds.
What is type III?
B if b=50 and N=1000
What is .05?
The total number of rhinos at year 5 of a starting population of 200 rhinos if the generational time is 5 years and the growth rate is 0.8 every.
What is 360 rhinos?
In an r-selected population individuals likely spend ____ energy on parental care than in a k-selected population.
What is less?
What are age of maturity, adult size, fecundity, parental care, number of reproductive cycles, and longevity?