Eisermann Knut, Schulz Ulrich
University of Applied Sciences Eberswalde, Fr. Ebertstr. 28, 16225 Eberswalde, Germany.
Rev Biol Trop. 2005 Sep-Dec;53(3-4):577-94. doi: 10.15517/rbt.v53i3-4.14672.
The Northern Central American Highlands have been recognized as endemic bird area, but little is known about bird communities in Guatemalan cloud forests. From 1997 to 2001 a total of 142 bird species were recorded between 2000 and 2400 masl in cloud forest and agricultural clearings on Montaña Caquipec (Alta Verapaz, Guatemala). The bird community is described based on line transect counts within the forest. Pooling census data from undisturbed and disturbed forest, the Gray-breasted Wood-Wren (Henicorhina leucophrys) was found to be the most abundant species, followed in descending order by the Common Bush-Tanager (Chlorospingus ophthalmicus), the Paltry Tyrannulet (Zimmerius vilissimus), the Yellowish Flycatcher (Empidonax flavescens), the Ruddy-capped Nightingale-Thrush (Catharus frantzi), and the Amethyst-throated Hummingbird (Lampornis amethystinus). Bird communities in undisturbed and disturbed forest were found to be similar (Serensen similarity index 0.85), indicating low human impact. Of all recorded species, approximately 27% were Nearctic-Neotropical migratory birds. The most abundant one was the Wilson's Warbler (Wilsonia pusilla). The Montaña Caquipec is an important area for bird conservation, which is indicated by the presence of four species listed in the IUCN Red List (Highland Guan Penelopina nigra, Resplendent Quetzal Pharomachrus mocinno, Pink-headed Warbler Ergaticus versicolor, Golden-cheeked Warbler Dendroica chrysoparia), and 42 Mesoamerican endemics, of which 14 species are endemic to the Central American Highlands. The results presented here will be useful as baseline data for a long-term monitoring.
中美洲北部高地已被认定为特有鸟类区,但危地马拉云雾森林中的鸟类群落却鲜为人知。1997年至2001年期间,在危地马拉上韦拉帕斯省卡基佩克山海拔2000至2400米的云雾森林和农业开垦地共记录到142种鸟类。基于森林中的样线计数对鸟类群落进行了描述。将未受干扰和受干扰森林的普查数据汇总后发现,灰胸林鹪鹩(Henicorhina leucophrys)是数量最多的物种,其次依次是普通灌丛唐纳雀(Chlorospingus ophthalmicus)、侏姬霸鹟(Zimmerius vilissimus)、淡黄斑翅霸鹟(Empidonax flavescens)、红脸夜鸫(Catharus frantzi)和紫喉蜂鸟(Lampornis amethystinus)。未受干扰和受干扰森林中的鸟类群落相似(索伦森相似性指数为0.85),表明人类影响较小。在所有记录的物种中,约27%是新北界 - 新热带界候鸟。数量最多的是威尔逊氏莺(Wilsonia pusilla)。卡基佩克山是鸟类保护的重要区域,国际自然保护联盟红色名录中列出的四种鸟类(高地冠雉Penelopina nigra、凤尾绿咬鹃Pharomachrus mocinno、粉头莺Ergaticus versicolor、金颊林莺Dendroica chrysoparia)以及42种中美洲特有物种的存在证明了这一点,其中14种是中美洲高地特有的。这里呈现的结果将作为长期监测的基线数据。