How does connectivity contribute to ecosystem resilience?

How does connectivity contribute to ecosystem resilience?

• A. Recolonization and genetic exchange
• B. Decreased biodiversity
• C. Increased vulnerability
• D. Isolation of species

Answer: (A)

Connectivity between habitats strengthens resilience by enabling recolonization after disturbance and promoting genetic exchange among populations. When landscapes are linked, organisms can move back into damaged areas, so patches aren’t left empty and ecosystem functions like pollination, predation, and nutrient cycling recover more quickly. Gene flow between populations maintains higher genetic diversity, reduces inbreeding, and provides a broader set of traits to respond to changing conditions, making communities better able to adapt and persist through shocks. If movement is limited and habitats become isolated, recolonization slows, genetic variation can decline, and overall resilience drops.

Connectivity between habitats strengthens resilience by enabling recolonization after disturbance and promoting genetic exchange among populations. When landscapes are linked, organisms can move back into damaged areas, so patches aren’t left empty and ecosystem functions like pollination, predation, and nutrient cycling recover more quickly. Gene flow between populations maintains higher genetic diversity, reduces inbreeding, and provides a broader set of traits to respond to changing conditions, making communities better able to adapt and persist through shocks. If movement is limited and habitats become isolated, recolonization slows, genetic variation can decline, and overall resilience drops.