TLS Online TPP Program

#Question id: 11406


Which of the following is true for a critically endangered species?

#Section 5: Applied Ecology & Evolution
  1. Reduction in population size is greater than 90%; estimated extinction risk at least 80% in 10 years; area of occupancy less than 10 km^2 generations
  2. Reduction in population size is greater than 90%; estimated extinction risk at least 50% in 10 years; area of occupancy less than 100 km^2 generations
  3. Reduction in population size is greater than 90%; estimated extinction risk at least 50% in 10 years; extent of occurrence less than 10 km^2 generations
  4. Reduction in population size is greater than 90%; estimated extinction risk at least 50% in 10 years; area of occupancy less than 10 km^2 g 
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TLS Online TPP Program

#Question id: 11403

#Section 5: Applied Ecology & Evolution

Several categories of risk of species extinction have been defined. A species can be determined as critical endangered if there is considered to be

TLS Online TPP Program

#Question id: 11404

#Section 5: Applied Ecology & Evolution

You were discovered 4 species in forest, their characteristic as following,

A specie eat only bamboo;

B species eat fruits of many tree species;

C species Short life span;

D species low population variability .

Which of the following species characteristics have been proposed as more prone to extinct?

TLS Online TPP Program

#Question id: 11405

#Section 5: Applied Ecology & Evolution

Vulnerability to extinction can be linked to species following characteristics. Which of the following statement are correct?

A. Endemism species are more prone to extinction than fragmented

B. Species that are capable of migrating between fragments of habitat, such as between mainland areas and islands, may be more resistant to extinction

C. Population variability species are less prone to extinct

D. Species with naturally long life spans may be more likely to become extinct

TLS Online TPP Program

#Question id: 11407

#Section 5: Applied Ecology & Evolution

Which of the following is incorrect statement?

TLS Online TPP Program

#Question id: 11408

#Section 5: Applied Ecology & Evolution

According to IUCN red list criteria , a species would be classified on the basis of following criteria are a- >50 decline in population during last 10 year b-occur in area less than 20,000 sq km c- total adult population less than 2500 Above observation which of the following class of IUCN

TLS Online TPP Program

#Question id: 11409

#Section 5: Applied Ecology & Evolution

Species characteristics that make them less prone to extinction are listed below:

A. Narrow niche and specialized

B. High dispersal power

C. High trophic status

D. Long life span

Which of the following is the correct combination?