The University of Tokyo Hokkaido Forest (UTHF) manages extensive areas of mature natural forests using the Stand-based Silvicultural Management System, which provides a favorable environment for forest organisms. In addition to forest reserves, where no silvicultural management or logging is conducted, there are other areas where logging is also not carried out for various reasons. A wildlife protection area including special protection zone is also designated within the UTHF. These measures contribute to the preservation of diverse species’ habitats. However, the recent increase in deer populations poses a risk to biological conservation due to excessive feeding damage. Climate change also presents a potential threat, particularly to alpine species. Furthermore, the rising numbers of nonnative species, such as the raccoon dog, may cause additional risks.