Anoxia begets anoxia: A positive feedback to the deoxygenation of temperate lakes (phys.org)

submitted 10 months ago by GreyShuck@feddit.uk to c/biodiversity@mander.xyz

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Anoxia threatens inland waters worldwide. Once it has occurred in a lake, the lack of oxygen even sets in motion a downward spiral that accelerates with increasing global warming. This is indicated by the results of an international study involving researchers of TU Bergakademie Freiberg, which were published in Global Change Biology.

According to the study, lakes that were once affected by a lack of oxygen in deep water are affected again the following year. As a result, the living conditions for fish and invertebrates continue to deteriorate, greenhouse gases are increasingly released and nutrient cycles are intensified.

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this post was submitted on 05 Jan 2024

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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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