(Pekania Pennanti) Restoration in Olympic National Park and the Olympic Recovery Area 2014 Annual Progress Report

Total Page:16

File Type:pdf, Size:1020Kb

(Pekania Pennanti) Restoration in Olympic National Park and the Olympic Recovery Area 2014 Annual Progress Report National Park Service U.S. Department of the Interior Natural Resource Stewardship and Science Evaluation of Fisher (Pekania pennanti) Restoration in Olympic National Park and the Olympic Recovery Area 2014 Annual Progress Report Natural Resource Data Series NPS/OLYM/NRDS—2015/804 ON THE COVER Fisher visiting remote camera station in Olympic National Forest, National Park Service. Photograph courtesy of the National Park Service. Evaluation of Fisher (Pekania pennanti) Restoration in Olympic National Park and the Olympic Recovery Area 2014 Annual Progress Report Natural Resource Data Series NPS/OLYM/NRDS—2015/804 Patricia J. Happe1, Kurt J. Jenkins2, Thomas J. Kay1, Kristy Pilgrim3, Michael K. Schwartz3, Jeffrey C. Lewis4, Keith B. Aubry5 1National Park Service 3U.S. Forest Service Olympic National Park Rocky Mountain Research Station 600 East Park Avenue 800 Block East Beckwith Port Angeles, WA 98362 Missoula, MT 59801 2 U.S. Geological Survey 4Washington Department of Fish and Wildlife Forest & Rangeland Ecosystem Science Center 600 Capital Way N. 600 East Park Avenue Olympia, WA 98501 Port Angeles, WA 98362 5U.S. Forest Service Pacific Northwest Research Station 3625 93rd Ave. SW Olympia, WA 98512 June 2015 U.S. Department of the Interior National Park Service Natural Resource Stewardship and Science Fort Collins, Colorado The National Park Service, Natural Resource Stewardship and Science office in Fort Collins, Colorado, publishes a range of reports that address natural resource topics. These reports are of interest and applicability to a broad audience in the National Park Service and others in natural resource management, including scientists, conservation and environmental constituencies, and the public. The Natural Resource Data Series is intended for the timely release of basic data sets and data summaries. Care has been taken to assure accuracy of raw data values, but a thorough analysis and interpretation of the data has not been completed. Consequently, the initial analyses of data in this report are provisional and subject to change. All manuscripts in the series receive the appropriate level of peer review to ensure that the information is scientifically credible, technically accurate, appropriately written for the intended audience, and designed and published in a professional manner. Data in this report were collected and analyzed using methods based on established, peer-reviewed protocols and were analyzed and interpreted within the guidelines of the protocols. This report received formal peer review by subject- matter experts who were not directly involved in the collection, analysis, or reporting of the data, and whose background and expertise put them on par technically and scientifically with the authors of the information. Views, statements, findings, conclusions, recommendations, and data in this report do not necessarily reflect views and policies of the National Park Service, U.S. Department of the Interior. This paper has been peer reviewed and approved for publication consistent with USGS Fundamental Science practices (http://pubs.usgs.gov/circ/1367/). Mention of trade names or commercial products does not constitute endorsement or recommendation for use by the U.S. Government. This report is available in digital format from the Olympic National Park website (http://www.nps.gov/olym/index.htm) and the Natural Resource Publications Management website (http://www.nature.nps.gov/publications/nrpm/). To receive this report in a format optimized for screen readers, please email [email protected]. Please cite this publication as: Happe, P. J., K. J. Jenkins, T. J. Kay, K. Pilgrim, M. K. Schwartz, J. C. Lewis, and K. B. Aubry. 2015. Evaluation of fisher (Pekania pennanti) restoration in Olympic National Park and the Olympic Recovery Area: 2014 annual progress report. Natural Resource Data Series NPS/OLYM/NRDS— 2015/804. National Park Service, Fort Collins, Colorado. NPS 149/128760, June 2015 ii Contents Page Figures................................................................................................................................................... iv Tables ..................................................................................................................................................... v Conversion Factors ............................................................................................................................... vi Executive Summary ............................................................................................................................. vii Acknowledgments ...............................................................................................................................viii Background and Study Objectives ......................................................................................................... 1 Research Accomplishments, 2014 ......................................................................................................... 2 Study Area ...................................................................................................................................... 2 Methods .......................................................................................................................................... 4 Sampling Effort .............................................................................................................................. 6 Fisher Detections .......................................................................................................................... 10 Remote Cameras ...................................................................................................................... 10 DNA Analysis ......................................................................................................................... 11 Other Species Detected ................................................................................................................. 12 Other Fisher Detections ................................................................................................................ 14 Follow-up on 2013 results that were not resolved in the 2013 annual report: ........................ 17 Plans for 2015 ...................................................................................................................................... 18 Publications and Public Outreach Activities (2014) ............................................................................ 18 Reports: ................................................................................................................................... 18 Presentations: ........................................................................................................................... 18 Funding (2014) ..................................................................................................................................... 19 References Cited .................................................................................................................................. 20 Appendix A. Founders detected in 2014 .............................................................................................. 21 Appendix B. Parentage of recruits identified by DNA in 2014 in the occupancy study and incidental detections. ............................................................................................................................ 24 Appendix C. National Park Service necropsy reports .......................................................................... 29 iii Figures Page Figure 1. Sampling frame depicting 24-km2 hexagons where fisher occupancy and genetic characteristics are being sampled on the Olympic Peninsula. ................................................... 3 Figure 2. Example of locations of stations in a hex. Fishers were detected in this hex in 2014........................................................................................................................................................ 5 Figure 3. Members of a field crew setting up a station within Olympic National Park (Hex 239). .............................................................................................................................................. 6 Figure 4. Location the 2014 sample frame and hexes sampled in 2014 (check marks) by primary landowner. ................................................................................................................................ 7 Figure 5. Location of fisher detections (stars) by cameras in hexes sampled in 2014 (white dots). ......................................................................................................................................... 11 Figure 6. Location (pink dots) and number of station/visits events (scaled by dot size) of Virginia opossum detections collected in 2014. .................................................................................. 14 Figure 7. Location of incidental fisher detections on the Olympic Peninsula, 2014. ......................... 16 Figure 8. Location of all fisher detections on the Olympic Peninsula, 2014, including fishers not detected in the project. ....................................................................................................... 17 Figure A1. Release location (purple star) and movements of M082 from his release in 2010 through September 2011. ...........................................................................................................
Recommended publications
  • Land Areas of the National Forest System, As of September 30, 2019
    United States Department of Agriculture Land Areas of the National Forest System As of September 30, 2019 Forest Service WO Lands FS-383 November 2019 Metric Equivalents When you know: Multiply by: To fnd: Inches (in) 2.54 Centimeters Feet (ft) 0.305 Meters Miles (mi) 1.609 Kilometers Acres (ac) 0.405 Hectares Square feet (ft2) 0.0929 Square meters Yards (yd) 0.914 Meters Square miles (mi2) 2.59 Square kilometers Pounds (lb) 0.454 Kilograms United States Department of Agriculture Forest Service Land Areas of the WO, Lands National Forest FS-383 System November 2019 As of September 30, 2019 Published by: USDA Forest Service 1400 Independence Ave., SW Washington, DC 20250-0003 Website: https://www.fs.fed.us/land/staff/lar-index.shtml Cover Photo: Mt. Hood, Mt. Hood National Forest, Oregon Courtesy of: Susan Ruzicka USDA Forest Service WO Lands and Realty Management Statistics are current as of: 10/17/2019 The National Forest System (NFS) is comprised of: 154 National Forests 58 Purchase Units 20 National Grasslands 7 Land Utilization Projects 17 Research and Experimental Areas 28 Other Areas NFS lands are found in 43 States as well as Puerto Rico and the Virgin Islands. TOTAL NFS ACRES = 192,994,068 NFS lands are organized into: 9 Forest Service Regions 112 Administrative Forest or Forest-level units 503 Ranger District or District-level units The Forest Service administers 149 Wild and Scenic Rivers in 23 States and 456 National Wilderness Areas in 39 States. The Forest Service also administers several other types of nationally designated
    [Show full text]
  • Jefferson County Hazard Identification and Vulnerability Assessment 2011 2
    Jefferson County Department of Emergency Management 81 Elkins Road, Port Hadlock, Washington 98339 - Phone: (360) 385-9368 Email: [email protected] TABLE OF CONTENTS PURPOSE 3 EXECUTIVE SUMMARY 4 I. INTRODUCTION 6 II. GEOGRAPHIC CHARACTERISTICS 6 III. DEMOGRAPHIC ASPECTS 7 IV. SIGNIFICANT HISTORICAL DISASTER EVENTS 9 V. NATURAL HAZARDS 12 • AVALANCHE 13 • DROUGHT 14 • EARTHQUAKES 17 • FLOOD 24 • LANDSLIDE 32 • SEVERE LOCAL STORM 34 • TSUNAMI / SEICHE 38 • VOLCANO 42 • WILDLAND / FOREST / INTERFACE FIRES 45 VI. TECHNOLOGICAL (HUMAN MADE) HAZARDS 48 • CIVIL DISTURBANCE 49 • DAM FAILURE 51 • ENERGY EMERGENCY 53 • FOOD AND WATER CONTAMINATION 56 • HAZARDOUS MATERIALS 58 • MARINE OIL SPILL – MAJOR POLLUTION EVENT 60 • SHELTER / REFUGE SITE 62 • TERRORISM 64 • URBAN FIRE 67 RESOURCES / REFERENCES 69 Jefferson County Hazard Identification and Vulnerability Assessment 2011 2 PURPOSE This Hazard Identification and Vulnerability Assessment (HIVA) document describes known natural and technological (human-made) hazards that could potentially impact the lives, economy, environment, and property of residents of Jefferson County. It provides a foundation for further planning to ensure that County leadership, agencies, and citizens are aware and prepared to meet the effects of disasters and emergencies. Incident management cannot be event driven. Through increased awareness and preventive measures, the ultimate goal is to help ensure a unified approach that will lesson vulnerability to hazards over time. The HIVA is not a detailed study, but a general overview of known hazards that can affect Jefferson County. Jefferson County Hazard Identification and Vulnerability Assessment 2011 3 EXECUTIVE SUMMARY An integrated emergency management approach involves hazard identification, risk assessment, and vulnerability analysis. This document, the Hazard Identification and Vulnerability Assessment (HIVA) describes the hazard identification and assessment of both natural hazards and technological, or human caused hazards, which exist for the people of Jefferson County.
    [Show full text]
  • Keeping It Wild in the National Park Service
    Wilderness Stewardship Division National Park Service Wilderness Stewardship Program U.S. Department of the Interior Keeping It Wild in the National Park Service A USER GUIDE TO INTEGRATING WILDERNESS CHARACTER INTO PARK PLANNING, MANAGEMENT, AND MONITORING Keeping it Wild in the National Park Service A User Guide to Integrating Wilderness Character into Park Planning, Management, and Monitoring National Park Service | U.S. Department of the Interior Wilderness Stewardship Division | Wilderness Stewardship Program January 2014 Cover photos: (Top) NPS/Suzy Stutzman, Great Sand Dunes Wilderness, Great Sand Dunes National Park (Left) NPS/Peter Landres, recommended wilderness, Canyonlands National Park (Right) NPS/Peter Landres, recommended wilderness, Cedar Breaks National Monument KEEPING IT WILD IN THE NATIONAL PARK SERVICE A USER GUIDE TO INTEGRATING WILDERNESS CHARACTER INTO PARK PLANNING, MANAGEMENT, AND MONITORING Developed by the National Park Service Wilderness Character Integration Team with funding and support from the NPS Office of Park Planning and Special Studies and the Wilderness Stewardship Division A Companion Document to the 2014 Wilderness Stewardship Plan Handbook: Planning to Preserve Wilderness Character WASO 909/121797; January 2014 EXECUTIVE SummARY This User Guide was developed to help National Park Service (NPS) staff effectively and efficiently fulfill the mandate from the 1964 Wilderness Act and NPS policy to “preserve wilderness character” now and into the future. This mandate applies to all congressionally designated wilderness and other park lands that are, by policy, managed as wilderness, including eligible, potential, proposed, or recommended wilderness. This User Guide builds on the ideas in Keeping It Wild: An Interagency Strategy to Monitor Trends in Wilderness Character Across the National Wilderness Preservation System (Landres and others 2008).
    [Show full text]
  • Geologic History of Siletzia, a Large Igneous Province in the Oregon And
    Geologic history of Siletzia, a large igneous province in the Oregon and Washington Coast Range: Correlation to the geomagnetic polarity time scale and implications for a long-lived Yellowstone hotspot Wells, R., Bukry, D., Friedman, R., Pyle, D., Duncan, R., Haeussler, P., & Wooden, J. (2014). Geologic history of Siletzia, a large igneous province in the Oregon and Washington Coast Range: Correlation to the geomagnetic polarity time scale and implications for a long-lived Yellowstone hotspot. Geosphere, 10 (4), 692-719. doi:10.1130/GES01018.1 10.1130/GES01018.1 Geological Society of America Version of Record http://cdss.library.oregonstate.edu/sa-termsofuse Downloaded from geosphere.gsapubs.org on September 10, 2014 Geologic history of Siletzia, a large igneous province in the Oregon and Washington Coast Range: Correlation to the geomagnetic polarity time scale and implications for a long-lived Yellowstone hotspot Ray Wells1, David Bukry1, Richard Friedman2, Doug Pyle3, Robert Duncan4, Peter Haeussler5, and Joe Wooden6 1U.S. Geological Survey, 345 Middlefi eld Road, Menlo Park, California 94025-3561, USA 2Pacifi c Centre for Isotopic and Geochemical Research, Department of Earth, Ocean and Atmospheric Sciences, 6339 Stores Road, University of British Columbia, Vancouver, BC V6T 1Z4, Canada 3Department of Geology and Geophysics, University of Hawaii at Manoa, 1680 East West Road, Honolulu, Hawaii 96822, USA 4College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, 104 CEOAS Administration Building, Corvallis, Oregon 97331-5503, USA 5U.S. Geological Survey, 4210 University Drive, Anchorage, Alaska 99508-4626, USA 6School of Earth Sciences, Stanford University, 397 Panama Mall Mitchell Building 101, Stanford, California 94305-2210, USA ABSTRACT frames, the Yellowstone hotspot (YHS) is on southern Vancouver Island (Canada) to Rose- or near an inferred northeast-striking Kula- burg, Oregon (Fig.
    [Show full text]
  • New Titles for Spring 2021 Green Trails Maps Spring
    GREEN TRAILS MAPS SPRING 2021 ORDER FORM recreation • lifestyle • conservation MOUNTAINEERS BOOKS [email protected] 800.553.4453 ext. 2 or fax 800.568.7604 Outside U.S. call 206.223.6303 ext. 2 or fax 206.223.6306 Date: Representative: BILL TO: SHIP TO: Name Name Address Address City State Zip City State Zip Phone Email Ship Via Account # Special Instructions Order # U.S. DISCOUNT SCHEDULE (TRADE ONLY) ■ Terms: Net 30 days. 1 - 4 copies ........................................................................................ 20% ■ Shipping: All others FOB Seattle, except for orders of 25 books or more. FREE 5 - 9 copies ........................................................................................ 40% SHIPPING ON BACKORDERS. ■ Prices subject to change without notice. 10 - 24 copies .................................................................................... 45% ■ New Customers: Credit applications are available for download online at 25 + copies ................................................................45% + Free Freight mountaineersbooks.org/mtn_newstore.cfm. New customers are encouraged to This schedule also applies to single or assorted titles and library orders. prepay initial orders to speed delivery while their account is being set up. NEW TITLES FOR SPRING 2021 Pub Month Title ISBN Price Order February Green Trails Mt. Jefferson, OR No. 557SX 9781680515190 18.00 _____ February Green Trails Snoqualmie Pass, WA No. 207SX 9781680515343 18.00 _____ February Green Trails Wasatch Front Range, UT No. 4091SX 9781680515152 18.00 _____ TOTAL UNITS ORDERED TOTAL RETAIL VALUE OF ORDERED An asterisk (*) signifies limited sales rights outside North America. QTY. CODE TITLE PRICE CASE QTY. CODE TITLE PRICE CASE WASHINGTON ____ 9781680513448 Alpine Lakes East Stuart Range, WA No. 208SX $18.00 ____ 9781680514537 Old Scab Mountain, WA No. 272 $8.00 ____ ____ 9781680513455 Alpine Lakes West Stevens Pass, WA No.
    [Show full text]
  • Pacific Lamprey 2020 Regional Implementation Plan Washington
    Pacific Lamprey 2020 Regional Implementation Plan for the Washington Coast/Puget Sound Regional Management Units Submitted to the Conservation Team August 12, 2020 Primary Authors Primary Editors M.Plumb U.S. Fish and Wildlife Service This page left intentionally blank I. Status and Distribution of Pacific lamprey in the RMUs A. General Description of the RMUs The Puget Sound/Strait of Juan de Fuca Region is bordered by the Strait of Juan de Fuca to the west, the Cascade Range to the east, Puget Sound systems to the south, and the U.S.–Canada border to the north (Figure 1). The Puget Sound/Strait of Juan de Fuca Region includes all Washington river basins flowing into the Puget Sound, Hood Canal, and Strait of Juan de Fuca. The major river basins in the Puget Sound initiate from the Cascade Range and flow west, discharging into Puget Sound, with the exception of the Fraser River system, which flows northwest into British Columbia. All of the major river basins in Hood Canal and the Strait of Juan de Fuca originate in the Olympic Mountains. This region is comprised of 20 4th field HUCs ranging in size from 435-6,604 km2 (Table 1). The Washington Coast Region is bordered by the Pacific Ocean to the West, Cape Flattery to the North, Olympic Mountain Range and Willapa Hills to the East, and the Columbia River to the South (Figure 2). This region includes all Washington river basins flowing directly into the Pacific Ocean. The Washington Coast Region includes the Hoh-Quillayute, Queets-Quinault, Upper and Lower Chehalis, Grays Harbor, and Willapa Bay sub-regions, or 4th field HUCs, ranging in size from 1,471-3,393 km2 (Table 2).
    [Show full text]
  • Space Use and Seasonal Movement of Isolated Mountain Goat Populations in the North Cascades, WA
    Space Use and Seasonal Movement of Isolated Mountain Goat Populations in the North Cascades, WA Jennifer Sevigny ( [email protected] ) Amanda Summers: Stillaguamish Tribe of Indians, Natural Resources Department, 22712 6th Avenue NE, Arlington, WA 98223 https://orcid.org/0000-0002-1839-3872 Amanda Summers Stillaguamish Tribe of Indians Emily George-Wirtz Sauk-Suiattle Tribe Research Keywords: mountain goat, home range, spatial overlap, utilization distribution overlap index, seasonal range, Cascades Posted Date: October 5th, 2020 DOI: https://doi.org/10.21203/rs.3.rs-84165/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Page 1/25 Abstract Background: The spatial distribution and seasonal movement patterns of isolated populations of mountain goats (Oreamnos americanus) in the North Cascade range of Washington State is not fully understood. Determining harvest potential in these populations is challenging without a clear understanding of spatiotemporal movement, space use, and spatial overlap. Mountain goat populations in the North Cascades are fragmented and many have declined considerably from historic estimates. Identication of harvestable populations requires a clear understanding of population size, distribution, and movement. We investigated the population trends and spatial distribution of mountain goats in the Boulder River North Harvest Area in Boulder River Wilderness of Washington State. Methods: We reviewed recent mountain goat population estimates and used Global Positioning System collar data to determine year-round and seasonal home range distributions, spatial overlap within these ranges, and proximity of mountain goats to roads and trails. Results: We found 2 populations of mountain goats inhabiting the Whitehorse and Three Fingers Mountains in the Boulder River North Harvest Area.
    [Show full text]
  • The Resource
    Chapter II THE RESOURCE LOCATOR MAP OF CLALLAM COUNTY DESCRIPTION OF PLANNING AREA • NARRATIVE • PHYSICAL FEATURES • CHARACTERISTIC LANDSCAPES HISTORIC RESOURCES • NATIONAL REGISTER OF HISTORIC PLACES • WASHINGTON STATE REGISTER OF HISTORIC PLACES APPENDICES • APPENDIX A – GENERALIZED FUTURE LAND USE MAP • APPENDIX B – PHYSIOGRAPHIC ZONES MAP • APPENDIX C – CHARACTERISTIC LANDSCAPES MAP LOCATOR OF MAP CLALLAM COUNTY Chapter II, Page 1 DESCRIPTION OF THE PLANNING AREA NARRATIVE Clallam County lies across the northern half of Washington’s Olympic Peninsula, the northwest corner of the Pacific Northwest. Its western and northern boundaries are the Pacific Ocean and Strait of Juan de Fuca shorelines. The southern boundary cuts through Olympic National Park, the nearly million-acre wilderness interior of the Peninsula. The high mountains, rugged coastlines, deep forest, miles of unspoiled rivers, clean air and water, and mild marine climate offer a most unusual combination of environmental amenities. When the cultural, educational, and social amenities available in the cities and towns are considered, along with the range of living styles from small town to rural to backwoods, the county becomes a uniquely desirable place to live and work. The county is rich in natural resources. The Olympic Peninsula is one of the most productive timber-growing areas in the country, and 60 percent of Clallam County’s land area is in commercial timberland. The ocean waters once contained a vast fishery. Salmon have been the most significant species for commercial and sports fishermen, but twenty-four other commercially significant species are also landed. Some species of salmon have now become listed as threatened or endangered.
    [Show full text]
  • Expedition Descriptions
    BOLD & GOLD EXPEDITION DESCRIPTIONS BOYS AND GIRLS OUTDOOR LEADERSHIP DEVELOPMENT AT THE YMCA OF GREATER SEATTLE BOLD & GOLD EXPEDITION DESCRIPTIONS 1 WELCOME FROM THE BOLD & GOLD TEAM! To Our Old and New Friends, Welcome to our community! You have taken the first step to discovering what you are truly capable of. BOLD & GOLD is a program that will guide you to find the strength in yourself, in the community around you and in the outdoors. Whether it is exploring the old growth forest of North Cascades National Park, backpacking along the wild coastline of Olympic National Park, or summiting Mount Baker, you will have the opportunity to explore the beauty of nature, overcome challenges, try new things, and create lifelong friendships. We applaud you for taking the first step. While navigating the challenges of travel in the wilderness, we will help you embrace multicultural leadership by combining your unique self and our program’s values. You now have the chance to live beyond your wildest dreams! Thank you for seizing this opportunity and we look forward to hearing your stories when you return. In the words of Dr. Seuss: “You’re off to Great Places! Today is your day! Your mountain is waiting, So... get on your way!” - See you soon! The BOLD & GOLD Team TABLE OF CONTENTS BOLD | 1-WEEK EXPEDITIONS 3 MAKE A SCENE: ART AND BACKPACKING IN THE NORTH CASCADES . 13 BACKPACKING AND FISHING IN THE NORTH CASCADES . 3 POETS AND PEAKS: EXPLORING WILD PLACES THROUGH BEYOND CITY LIMITS: CAMPING AND HIKING AT MT. RAINIER CREATIVE WRITING .
    [Show full text]
  • Olympic Peninsula Tourism Commission 2019 Media Kit
    Olympic Peninsula Tourism Commission 2019 Media Kit Hoh Rain Forest, Olympic National Park Located in Washington’s northwest corner, the Olympic Peninsula is a land like no other. It is both environmentally and culturally rich. From the jigsaw coastlines, temperate rainforest, and glacial-capped peaks of Olympic National Park to the organic farms and wineries of the Dungeness and Chimacum Valleys; from the cultural centers of native tribes dotting the Highway 101 Pacific Coast Scenic Byway to the maritime history of its port towns, there’s an adventure for every age and spirit here. Holiday Lights Blyn, WA Olympic National Park A Modern-day Eden The Olympic Peninsula is home to the 1,400 square mile Olympic National Park. A designated UNESCO World Heritage Site and International Biosphere Reserve, the park has three distinctly different ecosystems; the Pacific coastline, the Olympic Mountains and the primeval rain forests. In 1976, Olympic became an International Biosphere Reserve; and in 1981, it was designated a World Heritage Site. These diverse ecosystems are still largely pristine due to its wilderness designations. The wild and rugged coastline along the Pacific Ocean stretches over 70 miles and is the longest undeveloped coast in the contiguous United States. The extensive alpine forests are home to some of the world’s largest conifers, towering 300 feet tall and measuring 25 feet around. Among the ancient forests of old-growth trees exists the largest temperate rainforest on the earth. Found on the Pacific Coast of North America, stretching from Oregon to Alaska. The rugged Olympic Mountains, home to Mount Olympus and over 60 glaciers, are thought to be beautiful enough for the gods to dwell.
    [Show full text]
  • Petrogenesis of Siletzia: the World’S Youngest Oceanic Plateau
    Results in Geochemistry 1 (2020) 100004 Contents lists available at ScienceDirect Results in Geochemistry journal homepage: www.elsevier.com/locate/ringeo Petrogenesis of Siletzia: The world’s youngest oceanic plateau T.Jake R. Ciborowski a,∗, Bethan A. Phillips b,1, Andrew C. Kerr b, Dan N. Barfod c, Darren F. Mark c a School of Environment and Technology, University of Brighton, Brighton BN2 4GJ, UK b School of Earth and Ocean Science, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK c Natural Environment Research Council Argon Isotope Facility, Scottish Universities Environmental Research Centre, East Kilbride G75 0QF, UK a r t i c l e i n f o a b s t r a c t Keywords: Siletzia is an accreted Palaeocene-Eocene Large Igneous Province, preserved in the northwest United States and Igneous petrology southern Vancouver Island. Although previous workers have suggested that components of Siletzia were formed Geochemistry in tectonic settings including back arc basins, island arcs and ocean islands, more recent work has presented Geochemical modelling evidence for parts of Siletzia to have formed in response to partial melting of a mantle plume. In this paper, we Mantle plumes integrate geochemical and geochronological data to investigate the petrogenetic evolution of the province. Oceanic plateau Large igneous provinces The major element geochemistry of the Siletzia lava flows is used to determine the compositions of the primary magmas of the province, as well as the conditions of mantle melting. These primary magmas are compositionally similar to modern Ocean Island and Mid-Ocean Ridge lavas. Geochemical modelling of these magmas indicates they predominantly evolved through fractional crystallisation of olivine, pyroxenes, plagioclase, spinel and ap- atite in shallow magma chambers, and experienced limited interaction with crustal components.
    [Show full text]
  • Olympic Marmot (Marmota Olympus)
    Candidate Species ____________________________________________________________________________________________ Olympic Marmot (Marmota olympus) State Status: Candidate, 2008 Federal Status: None Recovery Plans: None The Olympic marmot is an endemic species, found only in the Olympic Mountains of Washington (Figure 1). It inhabits subalpine and alpine meadows and talus slopes at elevations from 920-1,990 m (Edelman 2003). Its range is largely contained within Olympic National Park. The Olympic marmot was added Figure 1. Olympic marmot (photo by Rod Gilbert). to the state Candidate list in 2008, and was designated the State Endemic Mammal by the Washington State Legislature in 2009. The Olympic marmot differs from the Vancouver Island marmot (M. vancouverensis), in coat color, vocalization, and chromosome number. Olympic marmots were numerous during a 3-year study in the 1960s, but in the late 1990s rangers began noticing many long-occupied meadows no longer hosted marmots. Olympic marmots differ from most rodents by having a drawn out, ‘K-selected’ life history; they are not reproductively mature until 3 years of age, and, on average, females do not have their first litter until 4.5 years of age. Marmots can live into their teens. Data from 250 ear-tagged and 100 radio-marked animals indicated that the species was declining at about 10%/year at still-occupied sites through 2006, when the total population of Olympic marmots was thought to be fewer than 1,000 animals. During 2007-2010, a period of higher snowpack, marmot survival rates improved and numbers at some well-studied colonies stabilized. Human disturbance and disease were ruled out as causes, but the decline was apparently due to low survival of females (Griffin 2007, Griffin et al.
    [Show full text]