TLS Online TPP Program

#Question id: 11656


What is the assumption of Clements in colonizing successional  species?

#Section 1: Ecology
  1. possession of space is all-important and that the colonists that get there first determine subsequent community structure, such as facilitation
  2. Early colonists may exclude subsequent colonists such as
  3. Any species can start the succession, but the eventual climax community is reached in a somewhat orderly fashion, such as tolerance
  4. Each colonizing species made the environment a little different, such as facilitation
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TLS Online TPP Program

#Question id: 10682

#Section 2: Evolution

if 30 individuals of species 2 take up the same amount of resources as 5 individual of species 1 then the per capita competitive effects on species 1 of species 2 is

TLS Online TPP Program

#Question id: 10683

#Section 2: Evolution

Which of the following interaction shown in figure

TLS Online TPP Program

#Question id: 10684

#Section 2: Evolution

Which one of the following statements is INCORRECT?

TLS Online TPP Program

#Question id: 10685

#Section 2: Evolution

figure show population growth in two species A ana B . Interaction between


 

TLS Online TPP Program

#Question id: 10686

#Section 2: Evolution

 Following figure are shown figure of predator prey model 


Following some observation are given

A) The number of prey, N, increase at low predator densities, P, and decrease at high predator densities

B) Prey zero isoclines is depends on the ratio of the growth rate of prey to the capture efficiency of the predators

C) Number of predator needed for prey isoclines is depends on the ratio of the death rate of predators to the conversion efficiency of predators

D) Number of predator for prey isoclines depends on the ratio of the death rate of prey to the conversion efficiency of predators

Which of the above observation are true?


TLS Online TPP Program

#Question id: 10688

#Section 2: Evolution

For two species A and B in competition, the carrying capacities, competition coefficients, per capita growth rate and population size are

KA = 1000           KB = 1200    α of B= 1     β of A= .5       rB= .5         r A= .3                

AN= 500                  BN= 200

According to the Lotka-Volterra model, what is growth rate of species A?