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Using GIS to assess FAUNMAP and determine geographic range characteristics of mammoths and mastodons, Great Lakes, USA.

机译:使用GIS评估FAUNMAP并确定猛Great象和猛兽的地理范围特征,美国大湖区。

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摘要

During the Terminal Pleistocene, many now extinct megafauna roamed across North America. Two of the most widely studied genera from this time period are Mammut (or mastodons) and Mammuthus (or mammoths). While paleoenvironmental studies on individual site localities have been performed, no one has attempted to do a regional study on such species. Additionally, most research on fauna during this time focuses on community dynamics rather than individual species (or genera). The prime source of data for these studies is the FAUNMAP database; however, some studies reveal issues with using the database. During this investigation, the FAUNMAP database was compared to a database I created, consisting of the original database and other sites previously published, yet not included, in the FAUNMAP database. To limit the spatial extent for the study, only site localities for the Great Lakes region were used, due to the large concentration of mammoth and mastodon fossils and palynology and plant macrofossil studies. After adding 528 new sites, the hypothesis stating FAUNMAP was an effective database for studies concerning individual species (or genera) was rejected. Further objectives, using the modified database, determined geographic range characteristics, such has size, range shift through time, and associated vegetation. Assuming the site localities are located near their feeding grounds, the associated vegetation may provide a geographic understanding of their diets; however, the results for this study were inconclusive.
机译:在更新世末期,许多现已灭绝的大型动物在整个北美漫游。这个时期研究最广泛的两个属是猛mm(或猛兽)和猛mm(或猛mm)。尽管已经对单个地点的地点进行了古环境研究,但没有人尝试对此类物种进行区域研究。此外,这段时期内有关动物的大多数研究都侧重于社区动态,而不是单个物种(或属)。这些研究的主要数据来源是FAUNMAP数据库。但是,一些研究揭示了使用数据库的问题。在调查过程中,将FAUNMAP数据库与我创建的数据库进行了比较,该数据库由原始数据库和先前在FAUNMAP数据库中尚未发布的其他站点组成。为了限制研究的空间范围,由于猛ma象和乳齿象化石的大量集中以及孢粉学和植物大化石的研究,仅使用了大湖地区的地点。在添加了528个新位点之后,表明FAUNMAP是有关单个物种(或属)的研究的有效数据库的假设被拒绝了。使用修改后的数据库,可以确定更多的目标地理范围特征,例如大小,随时间变化的范围以及相关的植被。假设地点位于他们的觅食地附近,那么相关的植被可以提供对其饮食的地理了解;然而,这项研究的结果尚无定论。

著录项

  • 作者

    Adams, Kristin M.;

  • 作者单位

    Michigan State University.;

  • 授予单位 Michigan State University.;
  • 学科 Biology General.;Paleoecology.;Geography.
  • 学位 M.S.
  • 年度 2013
  • 页码 240 p.
  • 总页数 240
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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