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.
Environmental DNA (eDNA) metabarcoding has emerged as a powerful tool for monitoring aquatic biodiversity, enabling researchers to identify fish species from traces of DNA found in water without using invasive techniques ...
Plants & Animals
Jun 9, 2026
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Indonesia is home to the world's largest and most biodiverse coral reef system, spanning more than 32,000 square kilometers across the archipelago. Just like what is happening globally, these reefs are now bearing the brunt ...
Ecology
Jun 8, 2026
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A 1-millimeter difference in the size of a nest box entrance could help rare little pygmy-possums recover after bushfire, according to new research by Adelaide University, Kangaroo Island Research Station, and Kangaroo Island ...
Plants & Animals
Jun 2, 2026
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Thanks to a historical data archive, Swiss researchers are able to draw conclusions about the changes in the diversity of two insect groups over the past 90 years. The study, led by Agroscope, identified a significant decline ...
Plants & Animals
Jun 2, 2026
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Newly created grassland habitats that compensate for nature lost to development can effectively support wild pollinators like bees and hoverflies, according to a first of its kind study in the Netherlands. The findings are ...
Plants & Animals
Jun 2, 2026
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There's a conundrum that has perplexed biologists since Charles Darwin himself. Why do some exotic species take off as invasive pests while others don't?
Evolution
May 29, 2026
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For decades, ecologists have theorized that the extinction of one important species could set off a chain reaction of losses throughout an ecosystem. Now, new research offers some of the clearest real-world evidence that ...
Plants & Animals
May 29, 2026
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Wild pigs are generally considered among the world's most problematic invasive mammals. But a major new study from Aarhus Universitet shows that the introduced animals may actually have beneficial effects in North American ...
Plants & Animals
May 28, 2026
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When researchers survey wildlife in a lake, forest, or other habitat, they rarely capture every species present—some are simply too rare or elusive to detect. A new study published in the May issue of Ecological Informatics ...
Ecology
May 28, 2026
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A Brazilian study published in the journal Ecography indicates that the biodiversity of anuran amphibians (toads and frogs) on islands is determined by factors encompassed in two previously opposing theories.
Plants & Animals
May 27, 2026
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