Spatial Distribution of the Greater Sage-grouse in the Powder River Basin in Northeastern Wyoming

نویسنده

  • Audra Smolek
چکیده

ix CHAPTER 1: INTRODUCTION 1 1.1 Thesis Organization 7 CHAPTER 2: RELATED WORK 8 2.1 Types of Species Distribution Models 8 2.2 The MAXENT Model and Applications 10 CHAPTER 3: METHODS AND DATA 15 3.1 Typical Species Distribution Model Workflow 15 3.2 Presence Data 17 3.3 Explanatory Variables 17 3.4 MAXENT Model Runs 22 3.5 Assessment of Model and Variable Performance 23 CHAPTER 4: RESULTS 25 4.1 Greater Sage-Grouse (Centrocercus urophasianus) Observation Data 25 4.2 Contributions and Importance of Variables 25 4.3 Model Validation 28 4.4 Final Habitat Suitability Maps 32

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Comparing Ecological Site Descriptions to Habitat Characteristics Influencing Greater Sage-Grouse Nest Site Occurrence and Success

We used 119 greater sage-grouse (Centrocercus urophasianus) nests located in the Powder River Basin of northeastern Wyoming during 2004–2007 to assess the ability of US Department of Agriculture–Natural Resource Conservation Service (USDA–NRCS) ecological site descriptions (ESDs) to predict nest occurrence and success. We used nesting data from a regional study in the Powder River Basin that do...

متن کامل

West Nile virus and greater sage-grouse: estimating infection rate in a wild bird population.

Understanding impacts of disease on wild bird populations requires knowing not only mortality rate following infection, but also the proportion of the population that is infected. Greater sage-grouse (Centrocercus urophasianus) in western North America are known to have a high mortality rate following infection with West Nile virus (WNv), but actual infection rates in wild populations remain un...

متن کامل

Conserving migratory mule deer through the umbrella of sage-grouse

Conserving migratory ungulates in increasingly human-dominated landscapes presents a difficult challenge to land managers and conservation practitioners. Nevertheless, ungulates may receive ancillary benefits from conservation actions designed to protect species of greater conservation priority where their ranges are sympatric. Greater Sage-Grouse (Centrocerus urophasianus), for example, have b...

متن کامل

Burning and Mowing Wyoming Big Sagebrush: Do Treated Sites Meet Minimum Guidelines for Greater Sage-Grouse Breeding Habitats?

Wyoming big sagebrush (Artemisia tridentata wyomingensis) treatments are often implemented to improve breeding habitat for greater sage-grouse (Centrocercus urophasianus), a species of considerable conservation concern. In 2008 and 2009, we measured vegetation structure available to sage-grouse for breeding at 19 sites that were prescribed burned during 1990–1999 and 2000–2006, 6 sites that wer...

متن کامل

Mitigation effectiveness for improving nesting success of greater sage-grouse influenced by energy development.

Sagebrush (Artemisia spp.) habitats being developed for oil and gas reserves are inhabited by sagebrush obligate species-including the greater sage-grouse (Centrocercus urophasianus; sage-grouse) that is currently being considered for protection under the U.S. Endangered Species Act. Numerous studies suggest increasing oil and gas development may exacerbate species extinction risks. Therefore, ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015