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Effects of vegetation cutting on invertebrate communities of high conservation value Calluna upland peatlands
Insect Conservation and Diversity ( IF 3.5 ) Pub Date : 2019-10-08 , DOI: 10.1111/icad.12384
Roy Sanderson 1 , Samuel Newton 2 , Jen Selvidge 3
Affiliation  

  1. Upland moors and bogs in the United Kingdom are peatlands of high nature conservation value, many designated under the European Union's Habitat Directive, with internationally important bird populations, which depend on abundant invertebrate populations when breeding.
  2. Moorland management in the United Kingdom traditionally employs controlled burning in 10–30 year rotations of heather, Calluna vulgaris, creating habitat mosaics of different species composition and physical structure. This can increase overall invertebrate biodiversity and abundance, for certain key invertebrate groups. Burning has potential negative environmental effects, including peat erosion and contamination of drinking‐water supplies.
  3. Rotational cutting of vegetation is now being trialled as an alternative to burning, but its long‐term effects on invertebrates are poorly understood. We surveyed invertebrates on a 16‐year chronosequence of rotational cutting on an extensive area of dwarf shrub vegetation on upland peat soils in Northern England.
  4. Invertebrate Simpson diversity was greatest on intermediate‐aged patches, and along edges between cut and uncut areas. Older patches, cut between 2000 and 2008, were dominated by ants (Hymenoptera‐Formicidae), plant‐feeding bugs (Hemiptera‐Auchenorrhyncha) and parasitic wasps (Hymenoptera‐Parasitica). Patches cut more recently, between 2009 and 2016, had significantly lower invertebrate abundance, and were dominated by predatory ground beetles (Coleoptera‐Carabidae), ants and harvestmen (Opiliones).
  5. There were significant relationships between vegetation and invertebrate community composition under both invertebrate sampling methods. We recommend that rotational cutting is used as the primary means of management, it should be undertaken in approximately 15–20 year rotations, in irregularly shaped mosaics, to maximise the benefits to invertebrates and associated wildlife.


中文翻译:

植被砍伐对高保护价值卡鲁纳山旱地无脊椎动物群落的影响

  1. 英国的高地沼泽和沼泽是具有较高自然保护价值的泥炭地,许多是根据欧盟人居指令指定的,具有国际重要意义的鸟类种群,繁殖时依赖于大量的无脊椎动物种群。
  2. 传统上,英国的高沼地管理采用希瑟石楠(Calluna vulgaris)希瑟石楠(Caruna vulgaris) 10-30年轮作的可控燃烧,从而形成具有不同物种组成和物理结构的栖息地马赛克。对于某些重要的无脊椎动物群体,这可以增加整体无脊椎动物的生物多样性和丰富度。燃烧有潜在的负面环境影响,包括泥炭侵蚀和饮用水供应受到污染。
  3. 目前正在尝试旋转切割植被来替代燃烧,但人们对其无脊椎动物的长期影响知之甚少。我们对英格兰北部旱地泥炭土壤上广泛的矮化灌木植被的轮伐cutting割进行了16年的时间序列无脊椎动物调查。
  4. 无脊椎动物Simpson多样性在中年斑块以及切割和未切割区域之间的边缘处最大。在2000年至2008年之间切割的较旧斑块主要由蚂蚁(膜翅目-甲虫),植物摄食性臭虫(半翅目-uch虫科)和寄生性黄蜂(膜翅目-寄生虫)主导。在2009年至2016年之间,最近切割的斑块的无脊椎动物丰度明显降低,并且以掠食性地甲虫(鞘翅目甲虫),蚂蚁和收割者(尖齿夜蛾)为主。
  5. 在两种无脊椎动物采样方法下,植被与无脊椎动物群落组成之间都存在显着的关系。我们建议将轮伐切割用作主要管理手段,应在约15–20年的轮伐中以不规则形状的镶嵌物进行轮伐,以最大程度地提高无脊椎动物和相关野生生物的利益。
更新日期:2019-10-08
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