Effect of Habitat Fragmentation and Isolation for Reducing Damage by Wildlife

― Empirical research on a “corridor blockade fence” as a countermeasure against wild boars ―

Abstract

We applied the installation of a "corridor blockade fence" based on the analysis of agglomeration and connectivity of wild boar habitat to the site and verified its damage countermeasure effect. As a result, abandoned cultivated land may improve the agglomeration of habitats even if the area is small, but if a "corridor blockade fence" is installed in the part where the largest cluster of habitat can be effectively divided, habitat connectivity can be reduced. In addition, as a result of verifying the effects of "corridor blockade fence" by wild boar haunting frequency surveys using sensor cameras, captured wild boar population surveys, questionnaires and interview surveys, the synergistic effect of the "corridor blockade fence" and capture has significantly reduced the damage and infestation frequency of wild boars. It was also confirmed that even if the number of captured individuals are decreasing, the effect of suppressing the damage and infestation frequency throughout the site is continuously.