Page 18: Research news on species diversity

Species diversity is a multidimensional ecological concept describing the variability of species within a community, typically quantified through measures that integrate both species richness (the number of species) and evenness (the relative abundances of those species). It underpins community structure, ecosystem functioning, and resilience by influencing processes such as resource use, trophic interactions, and stability against perturbations. Species diversity is often assessed using alpha diversity (within-community), beta diversity (turnover among communities), and gamma diversity (regional diversity), and is commonly measured with indices such as Shannon, Simpson, or Hill numbers, each emphasizing different aspects of richness and evenness.

Ocean species discovery: 14 new marine animals described

Earth's vast oceanic biodiversity remains largely unexplored, with only a fraction of an estimated two million total living marine species formally named and described. A significant challenge is the protracted delay, often ...

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