#Question id: 10660
#Unit 10. Ecological Principles
Given below are growth equations where dN/dt is defined as
A. rN
B. rN[(K-N)/N]
With reference to the above equations, which one of the following statements is incorrect?
#Question id: 10661
#Unit 10. Ecological Principles
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: 10662
#Unit 10. Ecological Principles
Growth model of logistic with 1000 carrying capacity and exponential with ideal condition is related to initial population. (Value of rmax = .25)
A) In Logistic growth value of X should be maximum at 1000
B) In Exponetial growth value of X should be maximum at 1000
C) In Logistic growth value of X should be maximum at 500
D) In Exponential growth value of X should be constant over size of population
#Question id: 10663
#Unit 10. Ecological Principles
Following is a hypothetical life table of species
Following some statement is given
A- This type of life table is characteristic of species that produce a large number of offspring
B- Its greatest mortality early in life, with relatively low rates of death for those surviving this bottleneck
C. It is characterized by high age-specific survival probability in early and middle life, followed by a rapid decline in survival in later life
D. This includes k selected species
Which of the following above statement is correct?
#Question id: 10664
#Unit 10. Ecological Principles
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: 10665
#Unit 10. Ecological Principles
Complete the following hypothetical life table of a species.
Initial population size is 1000. What will be population size in next generation?