The impact of settled grazing on the grassland bird community of the Nantun area, northern Inner Mongolia

スポンサーリンク

概要

• 論文の詳細を見る

• The impact of settled grazing on grassland bird communities was investigated at ten sites along a 25km long transect between Holobo and Baintara villages in the Nantun area of Hulunber grassland, northern Inner Mongolia, during the period 6-11 June 1997. Sixteen species of birds were recorded. Both the number of species and the density of individuals were found to be lower at sites closer to villages, due to the retrogressive change in the vegetation in such areas. Furthermore, the structure of the bird communities also differed, although Alauda arvensis predominated at almost all of the sites. In meadows, where the grass stood more than 25cm high and covered more than 40% of the area, Emberiza aureola was the second most dominant species, accompanied by E. pallasi and Coturnix coturnix. Degraded grasslands close to the villages were characterised by Passer montanus, Hirundo rustica and H. daurica, which probably began breeding during the 1960s when the villages were constructed. Heavily grazed grasslands, though still dominated by A. arvensis, were poor in overall bird-species diversity, although it seems that Upupa epops and Vanellus vanellus might have been particularly attracted to areas of short grassland, such as those degraded by heavy gazing. Significant differences were found in the number of bird species and individual bird densities between grazing areas and mowing areas (t-test, p<0.05). It appears that the grassland bird communities of northern Inner Mongolia have been deleteriously modified since the introduction of settled grazing in the 1960s. Prohibiting the grazing of livestock during the growing season, and protecting these meadows for later mowing has a positive effect on the recovery of native grassland bird communities.

• 野生生物保護学会の論文

著者

• Shi Kun

  Laboratory Of Wildlife Conservation Department Of Ecoregion Science Faculty Of Agriculture Tokyo Nok

• Shi Kun

  Wildlife Conservation Department Of Ecoregion Science Faculty Of Agriculture Tokyo University Of Agr

• Maruyama Naoki

  Laboratory Of Wildlife Conservation Department Of Ecoregion Science Faculty Of Agriculture Tokyo Nok

• Gao Zhongxin

  College Of Wildlife Resources Northwestern Forestry University

• Gao Zhongxin

  College Of Wildlife Northeast Forestry University

• Koganezawa Masaaki

  University Forest, Faculty of Agriculture, Utsunomiya University

• Maruyama Naoki

  Wildlife Conservation Department Of Ecoregion Science Faculty Of Agriculture Tokyo University Of Agr

• Maruyama Naoki

  Wildlife Conservation Department Of Ecoregion Science Faculty Of Agriculture Tokyo Noko University

関連論文

• Seasonal changes in parotid and rumen papillary development in Mongolian gazelle (Procapra gutturosa Pallas)
• The present status, ecology and conservation of the Mongolian gazelle, Procapra gutturosa : a review
• Factors explaining the extension of the sika deer's range in Nikko, Japan
• Food habits of gray wolves and foxes in a grassland-forest ecotone of the western Daxing'anling Mountains, China
• Habitat Selection and Forest Edge Use by Japanese Monkeys in the Nikko and Imaichi Area, Central Honshu, Japan
• Effect of livestock grazing on the bird communities in Xinbarhuyouqi, western Hulunber grassland, northern Inner Mongolia
• The effect of livestock grazing on densities of Brandt's voles and Daurian ground squirrels in Hulunber grassland, northern Inner Mongolia
• The impact of settled grazing on the grassland bird community of the Nantun area, northern Inner Mongolia
• Impacts of settled grazing on the grassland ecosystem in the Nantun Area, northern Inner Mongolia
• The "Trace Recorder", a new device for surveying mammal home ranges, and its application to raccoon dog research
• Effects of sika deer on forest mice in evergreen broad-leaved forests on the Tsushima Islands, Japan
• The effects of sika deer on the structure and composition of the forests on the Tsushima Islands
• 16) A profile of ecotourists in the Nikko National Park, Japan
• Home range and seasonal migration of Japanese monkeys in Nikko and Imaichi, central Honshu, Japan
• Changes in the livestock grazing system in the Hulunber grassland, northern Inner Mongolia

もっと見る 閉じる

スポンサーリンク