Ecosystem and Biodiversity — Prelims Strategy
Prelims Strategy
For Prelims, a strong emphasis on factual accuracy and conceptual clarity is paramount. Begin by thoroughly understanding the definitions of ecosystem and biodiversity, their types, and levels. Memorize the four biodiversity hotspots in India, along with 2-3 endemic species examples for each.
Pay close attention to the classification of ecosystem services (provisioning, regulating, cultural, supporting) and be able to identify examples for each. The Biological Diversity Act, 2002, is a recurring favorite; know its objectives, the three-tier institutional structure (NBA, SBBs, BMCs), and the concept of Access and Benefit-Sharing (ABS).
Recent amendments to the Act are high-priority. For international conventions, focus on the core objectives of CBD, Nagoya Protocol, CITES (including its Appendices and India-listed species), and the Ramsar Convention.
The Kunming-Montreal Global Biodiversity Framework (GBF) and its key targets (e.g., '30x30') are essential current affairs hooks. Practice identifying the differences between similar concepts (e.g., National Park vs.
Wildlife Sanctuary, in-situ vs. ex-situ). Utilize mnemonics and flashcards for quick recall of facts, numbers, and article provisions. Vyyuha's Quick Recall 'FOREST-BED' will be particularly useful here.
Regularly solve MCQs, paying attention to trap options, especially those that mix up definitions or misattribute facts.