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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: 10707

#Section 1: Ecology

Based on the intermediate disturbance hypothesis, a community’s species diversity is increased by
TLS Online TPP Program

#Question id: 10708

#Section 1: Ecology

Which of the following statements is a likely explanation for why invasive species take over communities into which they have been introduced?
TLS Online TPP Program

#Question id: 10710

#Section 1: Ecology

Researcher study the diversity of 3 communities, 4 species was recorded from all community. Presence (+) and absence (-) of species are given 


What is similarity coefficient between A & B, B & C, and A & C RESPECTIVELY?
TLS Online TPP Program

#Question id: 10714

#Section 1: Ecology

What is value of Gini-simpson indices of following community? 

 Species identity Number of individuals 
 P 140
 Q 50
 R 2
 S 2
 T 2
 U 2
 W 2
TLS Online TPP Program

#Question id: 10715

#Section 1: Ecology

Following table shows the presence (+) or absence (-) of five species in three communities (A, B, C):

 Species Community A Community B Community C 
 1 10 0 0
 2 09 20 30
 3 11 18 50
 4 10 22 0
 5 10 20 10

Based on the above, which of the following is the correct order of diversity strength communities?
TLS Online TPP Program

#Question id: 10716

#Section 1: Ecology

The stability of a food web in a community is quantified using certain parameters which are defined below. Which of the following is an CORRECT representation?

A. Community with more complex is more stable

B. Community with more number of alternate is more stable

C. Stability of community is inversely proportional to Connectance 

D. Community with higher value of dominax index is more stable