Many species like steller's sea cow passenger pigeon have been driven to the brink of extinction. Which of the following describes this situation?
Over-exploitation by humans
Pollution
Habitat loss
Competition from introduced species
Estuaries are considered as nutrient rich and trap
List any two major causes other than anthropogenic causes of the loss of biodiversity.
Silent valley of Kerala is being preserved because it has
The state of Gujarat has river, desert, forest and lake ecosystems, thus exihibiting a diversity of life. Which measure do you use to denote total diversity in such a case?
In which part of the biosphere reserves, human settlement is permissible?