An invasive grass species frequently found in forests has created a thriving habitat for wolf spiders, who then feed on American toads,............... Japanese stiltgrass, which was accidentally introduced to the US in the early 1900s, is one of the most pervasive invasive species.............. Typically found along roads and in forests, it has been found to impact native plant species, invertebrate populations and soil nutrients...............When humans introduce foreign species into the environment, you can at best count on a neutral set of secondary events,,,,,with all too often their being catastrophic consequences for a "long line" of native animals, reptiles and plants

ScienceDaily: Ecology Research News

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More wolf spiders feasting on American toads  due to invasive grass, study shows UGA researchers found that Japanese stiltgrass affects  arachnid predators. Wolf spiders, like the one above,  thrive in the grass. As their numbers grow, more spiders  then feed on young American toads, ultimately reducing  the amphibian's survival wherever this grass grows. Credit: Jayna DeVore/UGA