Does the presence of wolves impact the health of aspens? Debate continues

From DenverGazette.com:

The trickle-down effect of changes within an ecosystem can often be surprising and impactful. With that in mind, one related topic of discussion has long been that of whether or not the presence (or addition of) an apex predator may change the natural landscape – from how rivers flow to population numbers of other species to the health of local flora.

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