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首页> 外文学位 >Investigating the physico-chemical niche of obligate subterranean amphipods and isopods in shallow subterranean waters of the DC metro area.
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Investigating the physico-chemical niche of obligate subterranean amphipods and isopods in shallow subterranean waters of the DC metro area.

机译：调查DC都会区浅层地下水域中专性地下两栖动物和等足动物的理化生态位。

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摘要

Washington, D.C. is home to a remarkable assemblage of troglomorphic amphipods and isopods living in shallow subterranean habitats that emerge at seepage springs, or "seeps". Species include amphipods ( Crangonyx and Stygobromus) and isopods ( Caecidotea). One species, Stygobromus hayi, is on the endangered species list and another is soon to be listed; however, little is known about their habitat preferences or their distribution. Seepage springs were sampled in national park lands in the DC metropolitan area for rare subterranean fauna, soil morphology, and water quality indicators such as nitrates, phosphates, radon, pH, DO, and conductivity. Based on a discriminant analysis, the parameters measured in this study were not able to distinguish between stygobiont-rich sites and stygobiont-poor sites. More than 100 seeps have been found in Southeast, D.C., with the highest concentration in Shepherd Parkway. This study points to the potential importance of small parks as reservoirs of biodiversity in low-socioeconomic communities.
机译：华盛顿特区是生活在渗水泉或“渗水”处的浅层地下栖息地的类轮足类两足动物和异足类动物的聚集地。种类包括两栖类（Crangonyx和Stygobromus）和等足类（Caecidotea）。濒危物种Stygobromus hayi已列入濒危物种名单，另一种即将列入清单。然而，人们对其栖息地的偏好或分布知之甚少。在DC大都市区的国家公园土地上采样了渗水泉，以了解地下的稀有动物，土壤形态和水质指标，例如硝酸盐，磷酸盐，ra，pH，DO和电导率。根据判别分析，在这项研究中测量的参数无法区分富含定柄生物部位和贫定柄生物部位。在华盛顿特区东南部发现了100多个渗出物，其中Shepherd Parkway的浓度最高。这项研究指出，小公园作为低社会经济社区生物多样性的储存库的潜在重要性。

著录项

  • 作者

    Keany, Jenna.;

  • 作者单位

    American University.;

  • 授予单位 American University.;
  • 学科 Environmental science.;Conservation biology.
  • 学位 M.S.
  • 年度 2016
  • 页码 66 p.
  • 总页数 66
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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