Summer Ecology of the Teshekpuk Caribou Herd PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Summer Ecology of the Teshekpuk Caribou Herd PDF full book. Access full book title Summer Ecology of the Teshekpuk Caribou Herd by Lincoln Scott Parrett. Download full books in PDF and EPUB format.
Author: Lincoln Scott Parrett
Publisher:
ISBN:
Category : Grant's caribou
Languages : en
Pages : 298
Get Book Here
Book Description
"The summer range of the Teshekpuk Caribou (Rangifer tarandus granti) Herd is currently undergoing the initial stages of petroleum exploration and development. Pre-development baseline information is necessary to interpret post-development distribution and habitat selection of caribou and to develop mitigation measures. We estimated bi-weekly distributions, diet and habitat selection by caribou during the summers, 2002-2004, based on aerial relocations of 21-49 radio-collared females. Little or no habitat selection was detected when comparing used locations to habitat available within bi-weekly utilization distributions. Habitat selection was much stronger when comparing bi-weekly utilization distributions to the remaining area of summer use. At the latter scale of analysis, there were dynamic temporal patterns in resource selection by caribou. High air temperature was strongly avoided throughout July. Tussock tundra was avoided early in the summer, but selected during August. Wet sedge was selected in June and from late-August through September. Estimates of dietary nitrogen content indicated that high nitrogen concentrations are available only for a short period in early summer, and declined well before forage biomass. Predicted dietary nitrogen concentration appeared to be much lower for the Teshekpuk Caribou Herd than for the Porcupine Caribou Herd. Successful mitigation measures for petroleum development in NPR-A will need to be spatially and temporally tailored to observed dynamic patterns in caribou resource selection. Future work should estimate the performance of caribou (e.g., survival or weight gain) in relation to habitat quality and use in order to confirm the value of selected habitats and to enhance the robustness of mitigation measures"--Leaf iii.
Author: Lincoln Scott Parrett
Publisher:
ISBN:
Category : Grant's caribou
Languages : en
Pages : 298
Get Book Here
Book Description
"The summer range of the Teshekpuk Caribou (Rangifer tarandus granti) Herd is currently undergoing the initial stages of petroleum exploration and development. Pre-development baseline information is necessary to interpret post-development distribution and habitat selection of caribou and to develop mitigation measures. We estimated bi-weekly distributions, diet and habitat selection by caribou during the summers, 2002-2004, based on aerial relocations of 21-49 radio-collared females. Little or no habitat selection was detected when comparing used locations to habitat available within bi-weekly utilization distributions. Habitat selection was much stronger when comparing bi-weekly utilization distributions to the remaining area of summer use. At the latter scale of analysis, there were dynamic temporal patterns in resource selection by caribou. High air temperature was strongly avoided throughout July. Tussock tundra was avoided early in the summer, but selected during August. Wet sedge was selected in June and from late-August through September. Estimates of dietary nitrogen content indicated that high nitrogen concentrations are available only for a short period in early summer, and declined well before forage biomass. Predicted dietary nitrogen concentration appeared to be much lower for the Teshekpuk Caribou Herd than for the Porcupine Caribou Herd. Successful mitigation measures for petroleum development in NPR-A will need to be spatially and temporally tailored to observed dynamic patterns in caribou resource selection. Future work should estimate the performance of caribou (e.g., survival or weight gain) in relation to habitat quality and use in order to confirm the value of selected habitats and to enhance the robustness of mitigation measures"--Leaf iii.
Author: Donald Edmund Russell
Publisher:
ISBN:
Category : Barren ground caribou
Languages : en
Pages : 14
Get Book Here
Book Description
Author: Archana Bali
Publisher:
ISBN:
Category : Barren ground caribou
Languages : en
Pages : 228
Get Book Here
Book Description
Barren-ground caribou herds are part of social-ecological systems that are of critical importance to northern Indigenous Peoples of the Arctic, contributing to nutritional, cultural, and spiritual well being that are today undergoing significant changes. This dissertation uses multiple disciplinary lenses to understand the dynamics of these systems and to clarify methods for studying them. Chapter 1 focuses on a prediction of summer (June 1- August 31) mosquito activity and potential insect harassment of caribou in response to a changing climate. The Mosquito Activity Index (MAI) was based on daily ambient temperature and wind velocity obtained from the North American Regional Reanalysis dataset (NARR) from 1979 to 2009 for summer ranges of Alaska’s four Arctic herds: Western Arctic Herd (WAH), Teshekpuk Caribou Herd (TCH), Central Arctic Herd (CAH), and Porcupine Caribou Herd (PCH). Mean MAI was lowest for TCH, followed by WAH and PCH and highest for CAH. Over 31 years there was an increasing trend in MAI that affected the summer habitat of TCH and PCH, but a decreasing trend for WAH. Intra-annual patterns in MAI among herds differed in peak MAI. Chapter 2 presents a novel method of participatory videography to document the knowledge and experiences of Caribou People. Ninety-nine interviews were videoed in six Arctic communities of North America in the summer of 2008 as part of the International Polar Year. Chapter 3 presents “Voices of Caribou People,” a composite film of those interviewed, portraying the range of topics reported. Chapter 4 presents the results of an open-coding content analysis of a sample of 34 of the Voices Project interviews. Interviews described people’s rich memories of the past, aspects of their traditional knowledge and practices, the changes they have observed, the challenges they face, and what they perceive as their needs to meet present and future challenges. A key finding of the analysis is that while the research community and funding agencies are highly focused on climate change, Caribou People expressed greater concern about their social, economic, and political challenges. Caribou people noted that more studies undertaken in full partnership with caribou user communities along with community authority in decision-making are needed to sustain their human-caribou systems.
Author: Frank Matthias Mörschel
Publisher:
ISBN:
Category : Caribou
Languages : en
Pages : 160
Get Book Here
Book Description
Author: Lincoln Scott Parrett
Publisher:
ISBN:
Category : Caribou
Languages : en
Pages : 0
Get Book Here
Book Description
"This report provides a record of survey and inventory management activities for Teshekpuk caribou in Units 23, 24, and 26 for the 5 regulatory years 2012–2016 and plans for survey and inventory management activities in the following 5 regulatory years, 2017–2021. A regulatory year (RY) begins 1 July and ends 30 June (e.g., RY14 = 1 July 2014–30 June 2015). This report is produced primarily to provide agency staff with data and analysis to help guide and record agency efforts but is also provided to the public to inform it of wildlife management activities. In 2016 the Alaska Department of Fish and Game’s (ADF&G, the department) Division of Wildlife Conservation (DWC) launched this 5-year report to more efficiently report on trends and to describe potential changes in data collection activities over the next 5 years. It replaces the caribou management report of survey and inventory activities that was previously produced every 2 years."--Page 1
Author: Donald Edmund Russell
Publisher:
ISBN:
Category : Caribou
Languages : en
Pages : 165
Get Book Here
Book Description
"The primary objective of this study was to define and identify critical caribou habitat in northern Yukon (ie. north of treeline) in order to better predict impact of any human activity on caribou. A comprehensive ecological approach was used to first of all define "critical" habitat. Caribou movement and behavior was related to the "need to feed" and the "need to avoid insects". 1. Historical and recent movements and distribution of the herd pointed to the importance of the Richardson Mountains and the Muskeg Basin regions of the northern Yukon during summer insect season. Radio-tracking relocations pointed to the frequent fracturing and reformation of large aggregations during the insect season and the constant movement of these groups. 2. Our assessment of the regional distribution of vegetation communities has shown that the Blow River valley and the valleys of the Richardson Mountains support lush vegetation. ...3. Our study of mosquito activity ... showed that mosquito activity peaks the second week of July and declines thereafter, .... 4. Our documentation of regional weather in 1986 revealed the regional influence of warm, moist northeasterly flows from interior Alaska and the cool southwesterly flows from the Beaufort Sea. Our study appeared to lie within the area of conflict between these two systems, resulting in dynamic weather patterns that can and are exploited by the caribou. ... 5. Our study of caribou behaviour response to insect harassment revealed the importance of defense strategies such as forming large dense groups when insects are active, and the advantage gained by individuals in the core or windward side of a group. 6. Caribou activity budgets indicated that insect harassment had the most profound effect of reducing lying and feeding at the expense of standing. ... The study provides the baseline information on the use of the region by the Porcupine caribou herd during the summer period, and combined with our knowedge of caribou/human interactions from related studies, puts us in an excellent position to help guide industrial development. ... The study provides the baseline informaion on the use of the region by the Porcupine caribou herd during the summer period, and combined with our knowledge of caribou/human interactions from related studies, puts us in an excellent position to help guide industrial development"--ASTIS [online] database.
Author: R. Terry Bowyer
Publisher: Frontiers Media SA
ISBN: 2889669106
Category : Science
Languages : en
Pages : 308
Get Book Here
Book Description
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Alaska
Languages : en
Pages : 310
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 632
Get Book Here
Book Description
Author: United States. Bureau of Land Management. Alaska State Office
Publisher:
ISBN:
Category : Alaska
Languages : en
Pages : 438
Get Book Here
Book Description
