China News Service, April 7. According to Taiwan's "Central News Agency", Taiwan Yushan Park Management Office (hereinafter referred to as "Jade Management Office") published research results on Yushan conservation on the 7th, including Taiwan black bear satellite tracking, hunting autonomous management planning, China Survey results of large herbivorous mammals, butterflies, fern abundance in the Nanheng area, and raptors passing through the autumn of Tataga.

  According to reports, the Yushan Park Management Office celebrated its 37th birthday on that day. In addition to holding environmental education lectures, it also published a conservation advocacy video and experience sharing in the "Mink Safari Country" note book. The conference on conservation research results will focus on topics such as Taiwan black bears, autonomous hunting management, medium and large herbivorous mammals, butterflies, ferns, and raptors.

  The Jade Management Office issued a press release stating that Cai Wenling, the hired commentator, led the public into the world of Taiwan black bears through hand-painted black bears, to understand the ecological habits, distribution range and what to do when encountering black bears in Taiwan; "Mink Safari Country" observation notes The book is based on the rich data of 328 sightings of yellow-throated mink on foot in Tataga by hired researcher Yin Limin in the past 10 years. By recording the ecological habits of yellow-throated mink in simple terms, the public can better understand the importance of habitat conservation.

  The Jade Management Office pointed out that the Yushan Park is the main activity area of ​​the core population of Taiwan black bears. Satellites are used to track and analyze the activity range and habitat use patterns of Taiwan black bears in the eastern and western parks. Relevant physical measurements, health checks and genetic analysis are also carried out. Train 34 citizen scientists to monitor medium and large mammals.

  It is reported that the Jade Management Office conducted a survey on the southern park where there are still many hunting taboos or ethics, so as to understand the current situation of hunting and attitudes and opinions on self-management of hunting. It also investigated the local wildlife groups and found that the southern park is rich in species of wild animals, and Taiwan has appeared steadily. Traces of black bears, bear eagles, etc.

  The Jade Management Office said that the park is well-preserved. With the increase in the number of herbivorous mammals, the survey and monitoring of Taiwan's sambar's preferred tree species in the Tataga area, such as alpine duck-foot wood and Yushan false pear, are more commonly eaten and milled, and since 2019 Begin to study and monitor, the gnawing rate of the wood samples on both sides of Yushan Forest Road has been increasing year by year, which shows that the pressure of Taiwan sambar gnawing and grinding on the forest road continues to increase.

  It is understood that the Yuguan Office has surveyed and recorded 71 species of butterflies in the Nanxi area of ​​Tataga. Based on the relevant research over the years, there are 164 species of butterflies in the Tataga area. Among them, the cut-veined silk butterfly, which used to be mostly in the southern park, first appeared in the northwest. The park was recorded as the northernmost record for the island's distribution; 22 species of butterflies were newly recorded in this area, and the peak of butterfly diversity in Nanxi Forest Road was concentrated from June to July, overlapping with the flowering period of nectar plants.

  Regarding the comfortable growth environment for ferns in the Meishan area of ​​Nanheng, the Jade Management Office stated that there are 21 families and 231 species of ferns in the southern park, and the maximum number of species ranges from 1599 to 2699 meters above sea level, of which 22 species of ferns are newly recorded, among which Guan Trail is an area with high diversity of ferns in the survey area, and the trail is relatively flat, so it is suitable for public environmental education and interpretation.

  Regarding the survey of birds of prey transiting Tataga in autumn, the Jade Management Office stated that in September 2020, the survey recorded 10,563 birds of prey, of which the red-bellied eagle accounted for 90%, in October 30,650 birds of prey were recorded, and the gray-faced buteo eagle accounted for 99% ; In September 2021, 5,102 birds of prey were recorded, of which the red-bellied eagle accounted for 90%, in October 26,721 birds of prey were recorded, and the gray-faced eagle still accounted for 99%. The survey shows that Tataga is an important "eagle road" for the migration of the gray-faced eagle. ”, in September and October, you can enjoy the heroic flying of the red-bellied eagle and the gray-faced eagle circling up from the valley at close range.