The hills near Missoula, Montana, are changing, native grasses and other plants increasingly squeezed out by nonnative plants. Knapweed, cinquefoil, and other weeds aren’t only changing the look of this ecosystem but its very structure. As ecologist Dean Pearson’s research has shown, however, some species are benefitting from the changed habitat in unexpected ways. You just have to look closely to see them.
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Learn more about these spiders on the Encyclopedia of Life.