Species Richness & Ecosystem Stability — NEET Biology
📚 Practice ConceptDoes the number of species in a community really matter to the functioning of the ecosystem?This is a question for which ecologists have not been able to give a definitive answer. For many decades, ecologists believed that communities with more species, generally, tend to be more stable than those with less species. What exactly is stability for a biological
Which of the following statements are correct regarding the reasons for high tropical biodiversity? S1. Tropical latitudes have remained relatively undisturbed for millions of years, providing a long evolutionary time for species diversification. S2. Tropical regions experience high seasonality and unpredictable climatic conditions, which promote frequent extinction and recolonisation. S3. Greater solar energy availability in the tropics directly increases primary consumption, leading to higher biodiversity without involving productivity. S4. Temperate regions have experienced frequent glaciations in the past, reducing the evolutionary time available for speciation compared to tropical regions. S5. Long-term ecosystem experiments showed that communities with higher species diversity have greater year-to-year variation in total biomass production.
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