Watch this video: and write one good paragraph 

Community ecologists often proclaim that all species within healthy wildlife communities are important for ecosystems to function properly. However, we know that some species perform essential functions within communities that no other species perform, in contrast to some species that have many redundant counterparts (i.e. other species performing a similar role in those systems). For example, the presence of wolves can influence the species composition of an entire community because they are a top predator. So, when we think about preserving entire communities, should we value some species more than others? In other words, with limited resources for conservation, should we focus more on saving more “important” species that help the whole community and allow less unique species to go extinct?

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