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后河国家级自然保护区鸟类资源调查 总被引：3，自引：0，他引：3
为探明后河自然保护区鸟类资源，于2003年7月10日～8月8日，采用样带法等对保护区进行鸟类资源调查。结果记录有164种鸟类，其中属于国家Ⅰ级保护动物1种，国家Ⅱ级保护动物32种，湖北省级保护动物30种，属于国家林业局公布的《国家保护的有益的或者有重要经济、科学研究价值的陆生野生动物名录》中的种类92种，保护区新记录7种。 相似文献
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2005年和2008-2009年,以样带法和固定半径样点法,对内蒙古鄂尔多斯高原鸟类区系进行了调查。调查期间共记录到鸟类168种,隶属于14目39科。其中,留鸟31种,夏候鸟73种,旅鸟60种,冬候鸟4种。繁殖鸟104种,构成鸟类区系的主体。繁殖鸟中北方型种类有92种,占繁殖鸟总数的88.5%,北方型种类占绝对优势,具有典型的古北界特征。在所记录鸟类中,有国家I级重点保护鸟类5种,国家Ⅱ级重点保护鸟类21种。调查区域主要由林地、灌丛草地、湿地、农田和居民区5种生境类型组成,调查结果表明：人类活动对鸟类区系组成有较大影响。 相似文献
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Two contrasting trajectories for vegetation restoration in agricultural landscapes are secondary succession following cropland abandonment that can regenerate woodlands (passive restoration) and conversion of cropland to tree plantations (active restoration), which have mostly focused on pine species in the Mediterranean Basin. We compared the effects of these two contrasting trajectories of vegetation restoration on bird assemblages in central Spain. Vegetation structure differed in the two restoration trajectories, pine plantations attaining higher tree cover and height (31% and 4.1 m, respectively) but lower strata complexity than secondary shrubland and holm oak woodland (which attained 10% and 1.4 m of tree cover and height, respectively). Bird species richness differed in stands under active or passive restoration trajectories, the former collecting a higher total number of species (4.2 species per 0.78 ha plot) than the latter (3.5 species per plot). The number of forest species increased with vegetation maturity in both restoration trajectories, but especially in stands under active restoration. The occurrence of woodland generalist species increased and of species inhabiting open habitats decreased in actively restored stands, being some of these latter species of high conservation priority in the European context but relatively common at the regional level. Bird species inhabiting pine plantations had broader habitat breadth at the regional level than those inhabiting secondary shrublands and woodlands. Maximum regional density did not differ between both restoration trajectories, but it increased with development of the herbaceous layer only at the secondary succession trajectory. The relative importance of species of European biogeographic origin was higher in mature pine plantations (58.9% of total bird abundance) than in mature holm oak woodlands (34.4%), whereas that of Mediterranean species was considerably higher in the latter (40.1%) than in the former (20%). Bird assemblages of relatively small patches of pine plantations are unable to reflect the regional avifauna, in contrast with the relationships between local and regional assemblage characteristics that can be found in isolated natural forests. We conclude that programs of vegetation restoration should base upon a range of approaches that include passive restoration, active restoration with a variety of tree and shrub species, and mixed models to conciliate agricultural production, vegetation restoration and conservation of target species. 相似文献
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2008年10月14日至11月21日,考察了新疆和田地区的民丰、于田、策勒、和田、皮山5县的11条昆仑山河谷,包括安迪尔河(上游)、克里雅河、阿克赛河、布藏河、策勒河、玉龙喀什河、喀拉喀什河、杜瓦河、桑株河、康阿孜河等,徒步攀登最高至海拔5 300 m以上。跨度从77°40′~84°00′E,35°55′~37°30′N范围。东西长600 km,南北宽约100 km,覆盖面积6.0×104km2以上。采用样线法和点计数法,对昆仑山区不同县域鸟的种类和数量进行多样性分析和比较。共记录到110种鸟类,隶属于14目、33科、74属,合计14 161只,其中斑姬鹟(Ficedula hypo-leuca)为中国鸟类新记录种。区系组成以古北型和广布种为主,缺少东洋型的成分。属于青藏高原特有物种只有雪雀(Montifringilla sp.)、雪鸡(Tetraogallus sp.)和地山雀(褐背拟地鸦)(Pseudopodoces humilis)等。物种多样性指数和均匀度分析表明,策勒(4.0)和皮山(3.9)的指数均较高。策勒与和田的相似性系数较大(0.60)。 相似文献
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自2002年3月到2004年8月对黑龙江青年水库及周边鸟类资源进行了调查,共鉴定鸟类2082只,共计97种,隶属13目28科,其中古北界鸟类77种,广布种20种,在区系上以古北界鸟类为主．留鸟、夏候鸟、旅鸟、冬候鸟分别为27种、55种、12种、3种。在居留型上,主要以夏候鸟、留鸟居多。其中鸳鸯、苍鹰、毛脚、红脚等15种为国家Ⅱ级保护动物。青年水库的鸟类多样性系数(H)为3．0759,鸟类的均匀度指数(E)为0．67237。 相似文献
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