• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Responses of vertebrate fauna to prescribed fire and fuel reduction treatments in the southern Piedmont.
【24h】

Responses of vertebrate fauna to prescribed fire and fuel reduction treatments in the southern Piedmont.

机译：皮埃蒙特南部地区脊椎动物对指定的降火和减燃处理的反应。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The National Fire and Fire Surrogate Study (FFS) is a national study installed at 13 sites across the United States. The goal of the FFS is to assess the effects of fuel reduction treatments on seven categories of physical and biological response variables. One installation of the FFS was on the Clemson Experimental Forest. There, the impacts of fuel reduction treatments such as prescribed burning and thinning were studied on a multitude of factors, including the subjects of this text: herpetofauna, small mammals, and avifauna.;Treatment, study site, and block effects on abundance were detected at the order, suborder, functional group, and species level for herpetofauna, small mammals, and avifauna. Anolis carolinensis abundance was higher in Thin plots than in Control plots. Significant block effects were detected for Serpentes and Plethodon spp. Anura and Caudata abundance were correlated to adjacent breeding wetland proximity. Herpetofauna response variables were positively correlated with and predicted by the presence of large trees (45-60 cm dbh) more than any other environmental variable. There were significant treatment responses for Peromyscus spp. and total small mammal abundance. Peromyscus spp. abundance was higher in Thin/Burn, Thin, and Burn plots than in Control plots. Small mammal variables were most often positively correlated with woody and herbaceous vegetation species dominance.;Breeding season bird abundance was highest in Burn and Thin/Burn plots treatments. Indigo bunting (Passerina cyanea), prairie warbler (Dendroica discolor), and yellow-breasted chat ( Icteria virens) abundance was higher in Burn and Thin/Burn plots than in Thin and Control plots. Breeding season, conservation value, partners in flight (PIF) score, and species richness were significantly higher in Burn and Thin/Burn plots than in Thin and Control plots. Breeding season bird abundance and richness were most often positively correlated with herbaceous species diversity and native herb cover. Burn and Thin/Burn plots had the highest breeding season conservation value. Early successional and high PIF scoring species nested more frequently in Thin/Burn plots than in the other treatments. Winter abundance and richness were most frequently positively correlated with 1000 hour rotten fuel. Carolina wren (Thryothorus ludovicianus) abundance was higher in Burn plots than in Control and Thin plots during winter surveys.;Path analysis of fuel reduction treatments on herpetofauna across four southeastern FFS sites provided quantitative evidence relating changes in vegetation and fuels to herpetofauna response. Treatment effects on herpetofauna response variables were predicted by the direct and indirect effects of basal area, coarse woody debris volume, native herb cover, and forest floor depth. Path models were solved for Lacertilia, Serpentes, Testudines, and Reptilia response to fuel reduction treatments. Lizard and reptile abundance were higher in Burn and Thin/Burn plots than in Control and Thin plots across four southeastern FFS sites. Increasing native herb cover best predicted lizard and reptile abundance within Burn and Thin/Burn plots. Native herb cover, lizard, and reptile abundance were highest in Burn and Thin/Burn plots and each of these response variables responded positively to Burn and Thin/Burn treatments.;Introducing prescribed burning and thinning in upland pine plantations in the southern Piedmont creates habitat conditions that are essential for the conservation of resident and migratory bird species that rely on early succession shrub/scrub habitat. Thinning and prescribed burning that creates gaps in the forest canopy can increase the abundance of Peromyscus spp., which are important in forest stands not only as ecological consumers but as prey items for a number of bird, reptile, and mammal species. Older stands composed of large diameter trees provide habitat for mesic snake species. Managers should maintain a component of sawtimber-sized trees in southern Piedmont forests to provide habitat for these species. Forest stands are important staging grounds for salamanders and anurans that use adjacent streams and beaver impoundments for breeding habitat. Upland Piedmont forest stands in close proximity to amphibian breeding habitat should be maintained.;Prescribed burning and thinning can mimic historical disturbance regimes in southeastern forests where southeastern herpetofauna have evolved. This study related a positive response from the reptile community to an increase in native herb cover which resulted from prescribed burning and thinning. Reptiles in southeastern forests with historical disturbance regimes benefit from the open conditions created from prescribed burning and thinning. Amphibian response to fuel reduction treatments across southeastern FFS sites could not be accurately assessed. Amphibian abundance was dictated more by the proximity of breeding wetlands to treatment areas and masked the ability to detect treatment effects.
机译：美国国家火灾与火灾替代研究（FFS）是一项在美国13个地点安装的国家研究。 FFS的目标是评估燃料减少处理对七类物理和生物响应变量的影响。 FFS的一个装置位于克莱姆森实验林上。在那里，研究了减少燃料的处理方法（例如规定的燃烧和稀化）对多种因素的影响，其中包括本文的主题：爬虫，小型哺乳动物和鸟类；检测到治疗，研究地点和对丰度的阻滞作用依次为Herpetofauna，小型哺乳动物和avifauna。薄地上的Anolins carolinensis丰度高于对照地。对蛇纹石和斑节菜属检测到明显的阻滞作用。 Anura和Caudata的丰度与相邻繁殖湿地的接近程度相关。与其他环境变量相比，Herpetofauna反应变量与大树（45-60 cm dbh）的存在呈正相关，并通过大树木的存在进行预测。对Peromyscus spp有明显的治疗反应。以及小型哺乳动物的总数。 Peromyscus spp。稀/烧，稀和烧图的丰度高于对照图。较小的哺乳动物变量最常与木质和草本植被物种的优势呈正相关。在伯恩和薄/伯恩地块处理中，繁殖季节鸟类的丰度最高。在“烧成”和“薄/烧”地块中，靛蓝旗布（“ Passerina cyanea”），“草原莺”（Dendroica discolor）和“黄胸”聊天（“ Icteria virens”）的丰度高于“薄”和“控制”地块。与稀薄和对照样地相比，烧伤和稀薄/烧伤样地的繁殖季节，保护价值，飞行伙伴（PIF）得分和物种丰富度显着更高。繁殖季节鸟类的丰度和丰富度通常与草本物种的多样性和原生草本覆盖率呈正相关。烧伤和稀/烧伤地块的繁殖季节保护价值最高。与其他处理相比，稀薄/烧伤样地中的早期演替和高PIF得分物种更频繁地嵌套。冬季的丰度和丰富度最经常与1000小时的腐烂燃料呈正相关。在冬季调查中，伯恩地块（Thryothorus ludovicianus）的丰度高于对照和薄地块。东南四个FFS站点对Herpetofauna进行的减燃料处理的路径分析提供了定量的证据，表明植被和燃料的变化与Herpetofauna的响应有关。通过基面积，粗木屑量，原生药草覆盖率和林地深度的直接和间接影响来预测对疱疹性动植物反应变量的治疗效果。求解了路径模型，确定了羊角cert，蛇形，睾丸和鼻疽对减少燃料的反应。在东南部四个FFS站点，Burn和Thin / Burn地块中的蜥蜴和爬行动物丰度高于Control和Thin地块。在Burn和Thin / Burn地块中，增加天然草覆盖率可以更好地预测蜥蜴和爬行动物的数量。在Burn和Thin / Burn区，本地草本覆盖率，蜥蜴和爬行动物的丰度最高，并且这些响应变量均对Burn和Thin / Burn处理产生积极的响应;在皮埃蒙特南部的山地松树人工林中引入规定的燃烧和间伐方法可创造栖息地对依靠早期演替灌木丛/灌木丛生境的居民和候鸟物种的保护至关重要的条件。细化和规定的燃烧会在林冠层中造成间隙，可增加Peromyscus spp。的丰富度。这不仅在林分中很重要，不仅是生态消费者，而且还是许多鸟类，爬行动物的猎物和哺乳动物物种。由大直径树木组成的较旧的林分提供了中生蛇种的栖息地。管理者应在皮埃蒙特南部森林中保留一部分锯木大小的树木，以为这些物种提供栖息地。林地是sal和无尾蜥蜴的重要聚集地，它们利用相邻的溪流和海狸蓄水池繁殖栖息地。应当保持山麓高地森林靠近两栖动物的繁殖栖息地。规定的燃烧和间伐可以模仿东南角形动物进化的东南森林的历史扰动状态。这项研究将爬行动物群落对由于规定的燃烧和稀疏导致的天然草本植物覆盖增加的积极反应联系起来。具有历史性干扰制度的东南森林中的爬行动物得益于规定的燃烧和疏伐所创造的开放条件。两栖动物对整个东南部FFS场址的燃油减少处理的反应无法准确评估。两栖动物的丰度更多地取决于繁殖湿地与治疗区域的距离，并掩盖了检测治疗效果的能力。

著录项

  • 作者

    Kilpatrick, Eran Stephen.;

  • 作者单位

    Clemson University.;

  • 授予单位 Clemson University.;
  • 学科 Agriculture Forestry and Wildlife.
  • 学位 Ph.D.
  • 年度 2006
  • 页码 198 p.
  • 总页数 198
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号