How Deforestation Reduces Biodiversity — The Chain of Events

⚙️ How Deforestation Reduces Biodiversity — The Chain of Events

Deforestation does not simply "kill trees." It triggers a cascade of ecological consequences. The forest canopy creates a unique microclimate — warm, humid, and stable — that hundreds of specialist species depend on. Once the trees are removed, this microclimate disappears immediately.

The loss of trees removes food sources (fruits, leaves, bark) and nesting sites for animals. Predators that depend on forest prey lose their food supply. Decomposers in forest soils lose the constant input of leaf litter that sustains them. Soil structure deteriorates rapidly — tree roots hold soil together, and without them, heavy rain causes soil erosion, washing nutrients into rivers (causing eutrophication downstream) and leaving infertile ground that prevents forest regrowth.

Simultaneously, fewer trees means less photosynthesis, so less CO₂ is removed from the atmosphere. If the cleared land is burned, the stored carbon in the wood is released immediately as CO₂. The combined effect — reduced CO₂ removal plus increased CO₂ release — accelerates global warming, which in turn threatens species globally, far beyond the cleared area itself.