#Question id: 10661
#Section 1: Ecology
Semelparous species are those that produce all of their offspring in a single reproductive event. The survivorship curve of a population of a semelparous species would most likely resemble which of the following?
#Question id: 10664
#Section 1: Ecology
dN/dt = rN (K-N/K ) The logistic equation above is used to describe the rate of change of a population, N, with time, t, Where r is the intrinsic rate of increase and K is the carrying capacity. What is value of per capita growth rate when population size is 200 individuals? ( K= 400, r =.25)
#Question id: 10666
#Section 1: Ecology
In a experimental invertebrate population the birth rate is 1200 per 1000 and death rate is 300 per 1000 per generation. Initial population size is 10000. What is value of NET reproductive rate?
#Question id: 10670
#Section 1: Ecology
To estimate the number of foxes in an area, a researcher conducted a mark-recapture survey. In the first survey, he caught and marked N number of foxes. In his second survey a week later, he caught 120 foxes of which 90 were unmarked (recaptures). If you are told that the actual number of foxes in this area is 400, what is value of N in this area?
#Question id: 11509
#Section 1: Ecology
What is value of net reproductive rate?
#Question id: 11510
#Section 1: Ecology
Life history trait varies environmental condition, both survivorship and fecundity is habitat dependent in practice but intrinsic rate of increase can change as environmental change. Following life history trait is characteristic of r-selected species?
A) Later age at first reproduction B) Long generation time
C) Multiple broods per life spans D) Large number of offspring per brood