Loss of Biodiversity
Loss of Biodiversity: Overview
This topic covers concepts such as Loss of Biodiversity, Natural Extinction, Habitat Loss and Fragmentation, Alien Species Invasions, Co-extinctions and Over Exploitation of Natural Resources.
Important Questions on Loss of Biodiversity
Loss of biodiversity occurs due to the growth of carrot grass (Parthenium sp.). This is an example of:
An exotic species that is introduced to a new area, spreads rapidly and eliminates native species is called
When a species becomes extinct, the plant and animal species associated with it in an obligatory way also become extinct. This phenomenon is referred to as
Dodo, passenger pigeon and Steller's sea cow became extinct in the last 500 years due to
According to most conservation biologists, the single greatest threat to global biodiversity is
The major cause of loss of number of migratory birds is
Wild life is destroyed most by
Which of the following forests is known as the 'lungs of the planet earth'?
Which of the following is/are cause/s for loss of biodiversity?
(i) habitat loss and fragmentation
(ii) co-extinction
(iii) over-exploitation
(iv) alien species invasion.
Which of the following is the most important cause of “The Evil Quartet”, which may lead to the extinction of animals and plants?
Which among the following is an example of invasive weed species?
A major factor for biodiversity loss is
The decrease in species diversity in tropical countries is mainly due to
Read the following statement.
"Nature" biological library is burning even before we catalogued the titles of all the books stocked there." What does this statement refer to?
The main cause of extinction of species from tropical areas is:
The alien species (Nile perch) introduced into Lake Victoria in
Find the incorrect statement from the following.
Which of the following is referred to as "Evil Quartet'' reference to the loss of biodiversity?
The loss of biodiversity in a region may lead to
Which of the following is known as the lungs of the planet earth?
