this post was submitted on 14 May 2025
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Biodiversity

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A community about the variety of life on Earth at all levels; including plants, animals, bacteria, and fungi.

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Biodiversity is a term used to describe the enormous variety of life on Earth. It can be used more specifically to refer to all of the species in one region or ecosystem. Biodiversity refers to every living thing, including plants, bacteria, animals, and humans. Scientists have estimated that there are around 8.7 million species of plants and animals in existence. However, only around 1.2 million species have been identified and described so far, most of which are insects. This means that millions of other organisms remain a complete mystery.

Over generations, all of the species that are currently alive today have evolved unique traits that make them distinct from other species. These differences are what scientists use to tell one species from another. Organisms that have evolved to be so different from one another that they can no longer reproduce with each other are considered different species. All organisms that can reproduce with each other fall into one species. Read more...

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Even in intact Amazon forests, climate change affects bird populations: Study (news.mongabay.com)
submitted 2 months ago by wolfyvegan@slrpnk.net to c/biodiversity@mander.xyz
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  • A recent study analyzed the behavior of birds that feed on insects in parts of the Amazon that have not yet been altered by human activity. Of the 29 species studied, 24 have gone through a reduction in population.
  • The results point to climate change as the cause: Less rainfall and more severe droughts seem to be affecting the number of insects there, resulting in less food for the birds, which seem to be reacting by reproducing less in order to save energy.
  • According to the study, an increase of just 1° C (1.8° F) in average dry season temperature in the Amazon would result in a 63% drop in the bird community’s average survival rate.

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