The Northern Goshawk (Accipiter gentilis Linnaeus 1758), a rare raptor, is listed as an near threatened (NT) species on the red lists by the Ministry of Environment of Japan. Many guidelines about how to manage the forest have been suggested for habitat conservation of the Northern Goshawk, and suggested that active forest management is required to maintain appropriate habitat conditions for extended periods. However, there are few cases of actual active management in Japan. The aim of this study is to evaluate the effectiveness of the active forest management implemented in "The Forest of Accipiter gentilis, Daisen, Tottori Prefecture" by comparing the forest structure and avifauna before and after forest management and to suggest an appropriate management plan. A management plan (Management of pine tree density, improvement by cutting of broad-leaved trees that reached the sub-tall tree layer) was suggested based on the first survey by the Tottori Chapter of the Wild Bird Society of Japan and Tottori University in 2003, and this suggestion was implemented by Tottori Prefecture for the five ensuing years. A second survey, conducted after the management, revealed that pine trees with a large diameter at breast height (DBH) and open spaces between the canopy and understory foliage for flying were preferred as nest areas by the Northern Goshawk. In addition, there was a good foraging range around the case study area. The mosaic of farmland and forest of the Satoyama range was utilized by the Northern Goshawk for foraging. Forest management that includes (1) promoting growth of large diameter trees for nesting and (2) securing flight space in the forest was made clear appropriate for both the conservation of Northern Goshawk habitat and timber cultivation.

The goal of the 2014 management plan "The Forest of Accipiter gentilis, Daisen, Tottori Prefecture" was to achieve a long-term balance between the nesting environment for birds of prey and timber productivity by renewing natural seedlings in red pine forests via small-scale clear-cutting. In this study, we conducted treeby-tree and vegetation surveys of Japanese red pine seedlings and young trees in the renewal operation area to evaluate the renewal of natural seedlings. It was determined that a sufficient number of seedlings had germinated in the target area, permitting adequate renewal. In addition, five years of undergrowth cutting had suppressed the undergrowth, and young red pine trees were growing at a sufficient density.

One's thought go to "the wisdom of ancestors who took advantage of ecosystem services"through the excursion of Nagara-gawa river, Gujo Hachiman and Kokeizan district

Roadkill (RK) refers to wildlife killed as a result of the collision with a vehicle. RK prevention is an important issue not only for environmental conservation but also for safe driving. In this study, we focused on RK records (RKR). RKR is an invaluable source of biological information that provides the basis for solving RK problems. The RKR can be used to identify RK hot spots, analyze the causes of its occurrence, propose preventive countermeasures, and understand the animal habitat. Moreover, RKR is big data with a large amount and variety. Therefore, the systematization of records is important. Previous studies have reported the content and management of RKR; thus, this study focuses on the current situation and issues of the RKR in Tottori Prefecture. Besides, future RKR improvements and methods are also proposed. Data on RKR were collected through interviews via phone, e-mail, and direct visits to related organizations such as road administrators, police department, prefectural departments that rescue injured birds and mammals, and local museums during the period from 2018 to 2019. Consequently, it was found that some organizations did not record RKR and even if it was collected, the data are too few to meet the need for countermeasure implementation and scientific analysis both from qualitative and quantitative points of view. One of the main reasons for insufficient records is the RK status in each organization. Nearly all organizations (except highway road administrators) did not utilize RKR for countermeasure implementation and analysis. In the future, it is desirable to improve the content and format of RKR, considering the importance and burden of RKR in each organization. Establishment of a suitable RK recording system and enactment of favorable RK policies are of paramount importance for the alleviation of RK.