Knowledge Resource Center for Ecological Environment in Arid Area
| Population ecology and monitoring of the endangered Devils Hole pupfish | |
| Dzul, Maria Christina | |
| 出版年 | 2011 |
| 学位类型 | 硕士 |
| 导师 | Quist, Michael C. ; Dinsmore, Stephen J. |
| 学位授予单位 | Iowa State University |
| 英文摘要 | The federally endangered Devils Hole pupfish, Cyprinodon diabolis , is endemic to Devils Hole, a limestone cavern adjacent to Ash Meadows National Wildlife Refuge in Nye County, Nevada. Sampling of the Devils Hole pupfish must be non-obtrusive, thereby limiting researchers to visual observation methods. This thesis assesses current monitoring efforts of Devils Hole pupfish with the goal of improving trend detection. In addition, a population model is constructed from monthly length-frequency distributions with the dual goal of increasing understanding of Devils Hole pupfish life history characteristics and identifying vulnerable Devils Hole pupfish life history stages. This thesis is composed of three chapters. Specifically, suspected sources of error in SCUBA surveys of adult Devils Hole pupfish were evaluated in the first chapter. In the second chapter, statistical power was used to assess sampling effort allocation (e.g., the number of samples, subsamples, and sub-subsamples) for surveys of larval Devils Hole pupfish. Patterns of Devils Hole pupfish survival, growth, and recruitment were evaluated after constructing a simulation model from length-frequency distributions in the third chapter. The ability to detect trends in population abundance, together with a greater understanding of Devils Hole pupfish population dynamics, will help Devils Hole pupfish conservation by allowing managers develop testable hypotheses and evaluate management actions. |
| 英文关键词 | Conservation Cyprinodon diabolis Monitoring Nevada Population model Pupfish Statistical power Trend detection |
| 语种 | 英语 |
| 国家 | United States |
| 来源学科分类 | Wildlife Conservation; Wildlife Management; Ecology |
| URL | https://pqdtopen.proquest.com/doc/920123967.html?FMT=AI |
| 来源机构 | Iowa State University |
| 资源类型 | 学位论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/245399 |
| 推荐引用方式 GB/T 7714 | Dzul, Maria Christina. Population ecology and monitoring of the endangered Devils Hole pupfish[D]. Iowa State University,2011. |
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