Prairie dogs once covered the expanses of the Great Plains. Their grazing made the grass more nutritious for the huge herds of bison, and a variety of snakes, raptors, and mammals   preyed on the rodents. In fact, the black- footed ferret (now endangered) specialized in prairie dog predation. Today, growing housing and agricultural developments have covered many prairie dog towns. Which of the following statements about prairie dogs is true?

TLS Online TPP Program

#Question id: 12286

#Section 1: Ecology

Keystone predators can maintain species diversity in a community if they

TLS Online TPP Program

#Question id: 12575

#Section 5: Applied Ecology & Evolution

All of the following are adaptations that permit the camel to be active by day in the desert EXCEPT 

TLS Online TPP Program

#Question id: 11662

#Section 1: Ecology

During the successional process generation of community through the short time period successional process as well as long time successional process;

a) During short time period evolve pioneer community from the climax community

b) During short time period generation of the microbial community 

c) During long time period generation of end community (forest) from the pioneer community

d) During long time period generation of the microbial community 

TLS Online TPP Program

#Question id: 10647

#Section 2: Evolution

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?

TLS Online TPP Program

#Question id: 11656

#Section 1: Ecology

What is the assumption of Clements in colonizing successional  species?