2.1. Protect mammals close to development areas (e.g. by fencing) https://www.conservationevidence.com/actions/2324 • We found no studies that evaluated the effects of protecting mammals close to development areas (e.g. by fencing). ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or har..