#Question id: 10645
#Section 1: Ecology
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. dn/dt is isoclines when
#Question id: 10646
#Section 1: Ecology
Four sampling unit of Area occupy by species having following number is 00, 20, 10, 20. What is abundance of that species?
#Question id: 10647
#Section 1: Ecology
Use the graph to answer the following question
In the figure, which of the following survivorship curves implies that an animal may lay many eggs, of which a regular number die each year on a logarithmic scale?
#Question id: 10652
#Section 1: Ecology
Which factors (limited space or overcrowding; limited food; Predators; parasite and diseased) tend to act in a density-dependent manner; Tony Sinclair (1989) many studies of density dependence in 51 populations of insects, 82 populations of large mammals, and 36 populations of small mammals and birds. Which of the following observation is most likely true?
a) Insects showed a wide variety of causes of density dependence and no one density-dependent factor was of overriding importance
b) The lesser the amount of available food, the greater the mortality of large mammals
c) Space and social interactions were more important for smaller mammals and birds, because they are more territorial
#Question id: 10653
#Section 1: Ecology
All offspring are produced in a single reproductive event, we term this pattern semelparity. Which of the following is characteristics feature for semelparity individuals?
a) Semelparity is common in insects and other invertebrates
b) Semelparous organisms may live for many years before reproducing
c) semelparity occur only in plant
d) In semelparity, exploitation competition is more common than interference competition
#Question id: 10654
#Section 1: Ecology
Complete the following hypothetical life table for a bird
What will be population size in next generation?