Scientists examine biodiversity in an area to evaluate the health of an ecosystem. By collecting research over a number of years, scientists can determine whether a given species is in decline, experiencing a population increase or is possibly extinct from an area. They can also find out whether invasive species are outperforming native species and pushing them out of their natural habitat. This information can then be used to make decisions about how to manage a habitat.
Though our backyards are often carefully landscaped with non-native plants, there are many different species of plants and animals that can be discovered. Comparing what types of plants and animals you find in your backyard to what types of plants and animals are known to exist in a given region can give you an indication of how healthy the ecosystem of your own backyard is.
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