北京西山国家森林公园有野猪？园方：与游客“相逢”概率不大

Core Viewpoint - The recent sighting of wild boars in Xishan National Forest Park raises concerns about human-wildlife interactions, prompting authorities to enhance monitoring and safety measures for visitors [4][10]. Group 1: Wild Boar Sightings and Safety Measures - Wild boars have been spotted in Xishan National Forest Park, which is close to urban areas, increasing the likelihood of encounters with visitors [4]. - The park has placed over 20 warning signs in areas where wild animals are frequently seen to ensure public safety [4]. - Visitors are advised to avoid entering undeveloped areas and to stick to designated paths, especially at night, to minimize the risk of encounters with wild boars [4][5][6]. Group 2: Reasons for Increasing Wild Boar Population - The wild boar population is increasing due to their high reproductive capacity, with a litter size of five to six piglets and a high survival rate [8]. - Wild boars have strong adaptability and a varied diet, allowing them to thrive in different environments [9]. - The decline in natural predators, such as the North China leopard and wolves, has contributed to the rapid growth of the wild boar population [10]. Group 3: Biodiversity and Wildlife Monitoring - Xishan has a rich biodiversity, with 173 species of terrestrial vertebrates identified, thanks to extensive afforestation efforts over the past 70 years [11]. - A wildlife monitoring system has been established in Xishan, utilizing over 110 infrared cameras and 400 monitoring devices to track animal populations [11]. - The ongoing ecological improvements in Beijing have led to an increase in various wildlife populations, including wild boars [10]. Group 4: Historical Context of Wild Boar Protection - Wild boars were listed as a protected species in Beijing in 1989 and were downgraded to a secondary protection level in 2008 [12][14]. - In 2023, wild boars were removed from the national list of protected species, reflecting changes in their population status and management [14].