University of Wyoming National Park Service Research Center Annual Report最新文献

Front Matter and Table of Contents 封面和目录

University of Wyoming National Park Service Research Center Annual Report Pub Date : 2018-08-28 DOI: 10.13001/UWNPSRC.2005.3589

Harlow J. Harlow, M. Harlow

引用次数: 0

Trophic State Evaluation for Selected Lakes in Yellowstone National Park 黄石国家公园湖泊营养状态评价

University of Wyoming National Park Service Research Center Annual Report Pub Date : 2010-05-17 DOI: 10.2495/WP100131

W. Miller

{"title":"Trophic State Evaluation for Selected Lakes in Yellowstone National Park","authors":"W. Miller","doi":"10.2495/WP100131","DOIUrl":"https://doi.org/10.2495/WP100131","url":null,"abstract":"The purpose of this study is to classify the trophic state for selected lakes in Yellowstone National Park, USA. This paper also documents that monitoring methods and perspectives used in this study meet current acceptable practices. For selected lakes in Yellowstone National Park, phosphorus, nitrogen, chlorophyll-a, and other lake characteristics are studied to identify lake behavior and to classify the annual average trophic state of the lakes. The four main trophic states are oligotrophic, mesotrophic, eutrophic and hyper-eutrophic. The greater the trophic state, the greater the level of eutrophication that has taken place. Eutrophication is the natural aging process of a lake as it progresses from clear and pristine deep water to more shallow, turbid, and nutrient rich water where plant life and algae are more abundant. The trophic state of a lake is a measurement of where the lake is along the eutrophication process. Human interaction tends to speed up eutrophication by introducing accelerated loadings of nitrogen and phosphorus into aquatic systems. As lakes advance in the eutrophication process, water quality generally decreases. Four models are used in this study to classify the trophic state of the lakes: the Carlson Trophic State Index, the Vollenweider Model, the Larsen-Mercier Model, and the Nitrogen-Phosphorus Ratio Model. Simple models are commonly used where steady-state conditions and lake homogeneity are assumed. There is concern that natural processes and human activity on and around the Yellowstone Lakes are causing the water quality to decline. The objectives of this study are to identify possible areas of concern and develop a baseline to which future evaluations can be compared. This paper presents results for some 20 lakes in Yellowstone Park, which have been studied over the past 12 years.","PeriodicalId":321051,"journal":{"name":"University of Wyoming National Park Service Research Center Annual Report","volume":"39 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121008617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Influence of Habitat Conditions and Predation Risk on Productivity and Behavior of a Partially-Migratory Elk Herd in the Absaroka Range 栖息地条件和捕食风险对Absaroka地区部分迁徙性麋鹿群生产力和行为的影响

University of Wyoming National Park Service Research Center Annual Report Pub Date : 2009-12-31 DOI: 10.13001/UWNPSRC.2009.3735

A. Middleton, M. Kauffman

引用次数: 0

Interseismic Hanging Wall Uplift on Teton Normal Fault, Grand Teton National Park Wyoming, 1988-1997, Measured by Precise Leveling 怀俄明大提顿国家公园提顿正断层的地震间上盘隆起，1988-1997，精确水准测量

University of Wyoming National Park Service Research Center Annual Report Pub Date : 1997-05-13 DOI: 10.13001/uwnpsrc.1997.3331

A. Sylvester, Robert B. Smith, C. Hitchcock, J. Byrd

引用次数: 0

Snow Avalanches and Vegetation Pattern in Cascade Canyon, Grand Teton National Park 大提顿国家公园喀斯喀特峡谷的雪崩和植被格局

University of Wyoming National Park Service Research Center Annual Report Pub Date : 1994-02-01 DOI: 10.1080/00040851.1994.12003036

R. Patten, D. H. Knight

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引用次数: 52

Carbon Storage Responses of Subalpine Forests to Mountain Pine Beetle Outbreaks Under Current and Altered Climate Regimes in Western North America. 北美西部气候变化下亚高山森林对山松甲虫爆发的碳储量响应

University of Wyoming National Park Service Research Center Annual Report Pub Date : 1900-01-01 DOI: 10.13001/uwnpsrc.2009.3763

D. Kashian

{"title":"Carbon Storage Responses of Subalpine Forests to Mountain Pine Beetle Outbreaks Under Current and Altered Climate Regimes in Western North America.","authors":"D. Kashian","doi":"10.13001/uwnpsrc.2009.3763","DOIUrl":"https://doi.org/10.13001/uwnpsrc.2009.3763","url":null,"abstract":"Understanding how climate, disturbances, and carbon storage interact in subalpine forests is critical for assessing the role of this ecosystem in the global carbon budget under altered climate scenarios. Most research to date in western North American forests has focused on wildfire effects on carbon storage and net ecosystem productivity (NEP). The current extensive insect outbreak in this region, however, suggests that insects such as the mountain pine beetle (MPB) are an important driver of carbon dynamics and may determine whether western landscapes are carbon sinks or sources. The overall objective of this study is therefore to understand how MPB outbreaks affect forest carbon storage at stand and landscape scales under multiple climate scenarios. Specific objective include examining how carbon storage changes with stand development following beetle outbreaks, how variability in outbreak extent, frequency, and post-outbreak stand development affect landscape-scale carbon storage, and how beetle outbreaks and climate interact. This research will, for the first time, provide data documenting post-outbreak carbon dynamics under current and altered climate scenarios. These data will provide the basis for developing a carbon-based, ecological rationale for future outbreak management in western forests.  INTRODUCTION","PeriodicalId":321051,"journal":{"name":"University of Wyoming National Park Service Research Center Annual Report","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115623822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Analysis of Composition, Distribution, and Habitat Use of Reintroduced Desert Bighorn Sheep in Arches National Park, Utah 犹他州拱门国家公园荒漠大角羊的组成、分布及生境利用分析

University of Wyoming National Park Service Research Center Annual Report Pub Date : 1900-01-01 DOI: 10.13001/UWNPSRC.1989.2763

C. Haas, G. Workman

引用次数: 0

Status, Appropriate Sampling Scheme, and Movement in the Tiger Salamander (Ambystoma tigrinum) in Yellowstone National Park 黄石国家公园虎蝾螈(Ambystoma tigrinum)的现状、适当的抽样方案和运动

University of Wyoming National Park Service Research Center Annual Report Pub Date : 1900-01-01 DOI: 10.13001/UWNPSRC.2002.3511

C. Peterson, S. Spear

引用次数: 0

Elk Food Habits and Range Interactions with other Herbivores in Wind Cave National Park 风洞国家公园麋鹿的饮食习惯和范围与其他食草动物的相互作用

University of Wyoming National Park Service Research Center Annual Report Pub Date : 1900-01-01 DOI: 10.13001/UWNPSRC.1977.2049

Adrian P. Wydeven

引用次数: 3

Historical Vegetation, Fuel Loads, and Integrated Resource Information Systems for Bryce Canyon National Park 布莱斯峡谷国家公园的历史植被、燃料负荷和综合资源信息系统

University of Wyoming National Park Service Research Center Annual Report Pub Date : 1900-01-01 DOI: 10.13001/UWNPSRC.1988.2691

D. Roberts, M. Jenkins, Doug W. Wight

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引用次数: 4