DMPQ- Explain the following terms: • Edge effect • Trophic cascade • Dieback

Edge effect: Edge effects refer to the changes in population or community structures that occur at the boundary of two habitats.

Trophic cascade: A trophic cascade is an ecological phenomenon triggered by the addition or removal of top predators and involving reciprocal changes in the relative population of Predator and prey through a food chain which often results in drastic changes in ecosystem structure and nutrient cycling.

Dieback: Dieback refers to the progressive death of a plant, usually from the tip of any portion of the plant. It is a condition in which a tree or shrub begins to die from the tip of its leaves or roots backward, owing to disease or an unfavourable environment.


RAS-RTS FREE Notes brings Prelims and Mains programs for RAS-RTS FREE Prelims and RAS-RTS FREE Mains Exam preparation. Various Programs initiated by RAS-RTS FREE Notes are as follows:- For any doubt, Just leave us a Chat or Fill us a querry––

Android App for RAS Prelims and Mains 

-Rajasthan GK (History, Geography, Economy and Polity)
-RAS Prelims Notes
-RAS Current Affairs
-Daily Mains Practice Questions (DMPQ)
-Daily Prelims Practice Questions (DPPQ)
-Mains Topic wise Notes for All RAS GS Papers

Install Now on

Never Miss any RAS Updates