this post was submitted on 14 Nov 2023
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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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A team of land managers at the University of Minnesota, working with a colleague at the University of Manitoba, has learned more about the role wolves play in boreal forest dynamics as they prey on beavers. In their study, published in Proceedings of the Royal Society B, the group used GPS trackers on wild wolves and cameras placed around several beaver ponds at a forested park in Minnesota to learn more about the impact of beavers and wolves on forest dynamics.

Prior research has shown that beavers play a major role in forest dynamics because they clear land, dam streams and forage on areas around beaver ponds. Prior research has also suggested that wolves may alter the impact that beavers have on forest dynamics by preying on them when the beavers stray too far from their self-built lodges—giving wolves a role in forest dynamics. In this new effort, the research team took a closer look to determine the impact wolves have on forest dynamics by preying on beavers.

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