The similarity coefficients of Pinaceae species in Yunling Reserve, Yulong Snow Mountain, Jiaozi Snow Mountain, Wuliang Mountain, Ailao Mountain, Yao Mountain, Cangshan Mountain and Namjagbarwa Peak were compared to study the community characteristics of Pinaceae species in Gaoligong Mountain. The investigation showed that there were 16 species(including varieties) and 6 genera of Pinaceae in this range, which are the main components of warm temperature and cold temperature zone of coniferous forests in Gaoligong Mountain, and the distribution of Picea farreri in Gaoligong Mountain is reported for the first time. The dominant species were Pinus, Abies and Tsuga. The genera of East Asia areal type and East Asia and North America disjunct type. The species of Sino-Himalayan and Chinese endemic. The coefficients of similarity between Gaoligong Mountain and Namcha Barwa was the highest, and the lowest was between Gaoligong Mountain and Ailao Mountain.
滇桐属(Craigia)为椴树科(Tiliaceae)植物,是东亚特有的寡种属.该属仅分布于中国西南部以及临近的越南北部地区.通过野外考察和文献研究,确认在怒江州高黎贡山东坡发现的滇桐属为高黎贡山新记录属.
高黎贡山地区属于全球生物多样性热点地区之一。长期以来,受地形复杂且植被浓密等限制,对该地区生物多样性现状缺乏全面深入的调查。2013年11月至2015年9月期间,通过布设红外相机,我们对云南高黎贡山国家级自然保护区西坡怒江州泸水县片马区域的兽类和鸟类多样性进行了初步调查,试图进一步补充该区域兽类和鸟类多样性本底资料。调查期内共监测41个不同相机位点,累计9 503个相机日,拍摄到808组独立有效照片。经鉴定包括兽类21种和鸟类24种,分属于10目21科38属,其中怒江金丝猴(Rhinopithecus strykeri)是近年来在高黎贡山地区新发现的灵长类动物。灵长目、肉食目、偶蹄目、雀形目、鸡形目和啮齿目等类群的相对多样性指数较高,且分布广泛。进一步对7种丰富度较高物种的出现时间段分析发现:(1)熊猴(Macaca assamensis)、怒江金丝猴和血雉(Ithaginis cruentus)的日活动规律峰值出现在上午和下午;(2)橙腹长吻松鼠(Dremomys lokriah)和紫啸鸫(Myophonus caeruleus)的日活动高峰出现在中午,但前者在黄昏活动相对较多;(3)黄喉貂(Martes flavigula)和野猪(Sus scrofa)具有一定的夜行性,但野猪的夜行性更强。本研究提供了高黎贡山中段西坡兽类和鸟类多样性现状的基础数据,有助于今后深入研究和推进本地区生物多样性保护。