Which study analyzed questionnaires taken by followers as they described their leader behaviors?

I believe the answer is: Ohio state studies

The purpose of the studies were to find out what traits that a person need to become an effective leader. From the studies, they found that most leaders at lest possess these two traits as the bare minimum:

- People-oriented, which make them able to organize people to work together under a same goal

- Task oriented , they separate time to fragments that is dedicated solely to finish the taks that they need to finsih.

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.