#Question id: 10687
#Unit 10. Ecological Principles
V(t) and E(t) are, respectively, prey density and predator density at time t. The densities have dynamics
dV (t) / dt = V - 0.01 VE
dE (t) / dt = 0.002 VE - E
What will the positive equilibrium densities of both predator and pray at isocline
#Question id: 10688
#Unit 10. Ecological Principles
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?
#Question id: 10689
#Unit 10. Ecological Principles
Which of the following is correct statement?
A) Body size of parasitoid is always greater than host but parasite usually smaller than host
B) Predator immediately kill their prey however parasitoid never kill their host
C) Intrinsic rate of parasite is faster than host but intrinsic rate of predator is slower than prey
D) Body association time between parasite and host is more than time association between predator and prey
#Question id: 10690
#Unit 10. Ecological Principles
Which of following interaction shown in following species of Paramecium?
#Question id: 10691
#Unit 10. Ecological Principles
Following some attributes of biological control agent of parasite
A) General adaptability to the environment.
B) High searching capacity for hosts.
C) K selected strategy
D) Low dispersal ability.
E) Minimal time lag effects in responding to changes in host numbers.
Following above attribute is not ideal for that biological agent?
#Question id: 10692
#Unit 10. Ecological Principles
