Marine Ecology — DU B.Sc. (Hons.) Environmental Science Previous Year Question Papers

1. Write short notes on any three of the following: (a) Ocean basins and sediment formation (b) Life in pelagic communities (c) Ocean productivity zones (d) Uses and abuses of the ocean 2. Differentiate between any three of the following: (a) Macroecology vs. trait-based ecology (b) Regime shifts vs. trophic skew (c) Biogeographic zones vs. functional traits (d) Metapopulations vs. recruitment 3 . (a) Explain species interactions and the organization of benthic macrophyte communities (b) What is resource partitioning? How does it maintain biodiversity? t10l t5l 4. (a) Describe the biogeographic classification of oceans and evidence for island biogeography. tl0l (b) What is the Anthropocene ocean? Mention two key features. t5l 5. (a) Discuss the biological pump and the global carbon cycle. t10l (b) Define the energetic equivalence rule and its ecological implications. t5l 6. Describe the impacts of ocean warming and acidification on marine food webs, species distribution, and global marine biodiversity. [15]