AP BIOLOGY

Detailed explanation-1: -Tropical Dry Forests The Most Endangered Major Tropical Ecosystem-Biodiversity-NCBI Bookshelf.

Detailed explanation-2: -Prairies and grasslands are some of the most endangered (and least talked about) ecosystems on earth. Grassland biomes have just as much, if not more, biological diversity as any of these other ecosystems.

Detailed explanation-3: -Conservation concern But rainforests are perhaps the most endangered habitat on earth and most vulnerable to deforestation. Each year, some 140, 000 sq km of rainforests are destroyed. Rainforests are being felled for timber by logging companies and cleared by people for farming.

Detailed explanation-4: -Madagascar rainforest Sadly, the WWF reports that less than 10% of Madagascar’s original forest cover exists today, due to land being cleared for cattle, illegal tree cutting and agriculture.