Because of the Great Schism, the Church in medieval society lost

The Church in medieval society lost political and cultural influence. (I think sorry if it's wrong)

Explanation:

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.

fertile good for trade etc