DOCSLIB.ORG

Threats and Concerns the Main Threats to This Species Are Oil And

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Threats and Concerns the Main Threats to This Species Are Oil And Species and plant communities at risk accounts in the BCTS Peace – Liard Business Area Threats and Concerns The main threats to this species are oil and gas exploration and development, mining, forest harvesting, and road construction, which may occur in or adjacent to preferred habitat. Best Management Practices Current management guidelines for plant species at risk are focused at the stand level. If a potential plant species at risk is located, it is recommended that the area have ribbon placed around it, photos taken and field cards filled out with the exact location recorded. This information should then be passed on to the designated species at risk coordinator. This is essentially a fine filter approach to managing the identified species, where an individual species and/or habitat is managed singularly and at a small scale (i.e. at the stand level). This approach should be used in association with a course filter approach which involves management for a variety of species/habitats simultaneously, mainly through the use of broad scale provisions at the landscape level such as protected areas and parks. Both the plant species at risk and habitat they occur in should be protected. The current management strategies for plant species at risk are based on the Identified Wildlife Management Strategy (IWMS) wildlife and wildlife habitat provisions/measures set out by the BC Government. The best management practices are as follows: establish a core area around a known element occurrence with a 30-50 m wide buffer establish a management zone around the core area that is 150-200 m wide around the buffer do not harvest within the core area, unless harvesting is aimed specifically at improving the habitat for the particular rare plant species keep the identified area ( core area + buffer) free from herbicide use deactivate temporary roads after use, do not allow road or trail construction upslope or within the element occurrence restrict access to high elevation areas with the use of gates and trenches where roads already exist or are necessary, ensure road is not changing the hydrology of element occurrence habitat ensure road maintenance activities do not alter, damage, or destroy the element occurrence if seeding occurs, use native species (prevent spread of exotic plant species) 144 Species and plant communities at risk accounts in the BCTS Peace – Liard Business Area Further Information and Links: British Columbia Conservation Data Centre: http://a100.gov.bc.ca/pub/eswp/speciesSummary.do?id=18411 Douglas, G.W., D. Meidinger, and J. Penny. 2002. Rare Native Vascular Plants of British Columbia, 2nd ed. B.C. Conserv. Data Centre, Terrestrial Inf. Branch, Victoria. E-Flora BC: Electronic Atlas of the Plants of British Columbia: http://linnet.geog.ubc.ca/Atlas/Atlas.aspx?sciname=Selaginella+rupestris Identified Wildlife Management Strategy – BC Ministry Of Environment: http://www.env.gov.bc.ca/wld/frpa/iwms/index.html 145 Species and plant communities at risk accounts in the BCTS Peace – Liard Business Area 146 Species and plant communities at risk accounts in the BCTS Peace – Liard Business Area Nuttall's Orache Atriplex nuttallii Kingdom Phylum Class Order Family Genus Species Plantae Anthophyta Dicotyledoneae Caryophyllales Chenopodiaceae Atriplex nuttallii Description General: Nuttall’s orache is a perennial semi-shrub. It has a woody base with erect or spreading, freely branched stems growing to 10-60 cm in height. Alternate leaves are oblong to spoon-shaped and 2-5 cm long with smooth margins. Flowers are Photo goes here leafless spikes grouped in clusters found axillary or at the terminal end of the stem. Bracteoles are irregularly toothed, smooth to pimply and rounded or lance to elliptic shaped. Status: Global: G5 Canada: Provincial: S1 -- Red Distribution BEC Units: BWBSmw Forest District: DPC (Peace District) Known Locations: In British Columbia it is found only near the Clayhurst Crossing of the Peace River. Outside BC, it is found east to Saskatchewan and south to the states of Utah, Idaho, Colorado, New Mexico and Arizona. Habitat This species is found on dry grassy slopes in the montane zone. 147 Species and plant communities at risk accounts in the BCTS Peace – Liard Business Area Threats and Concerns The main threats to this species are oil and gas exploration and development, mining, forest harvesting, and road construction, which may occur in or adjacent to preferred habitat. It’s only known location in British Columbia is of significant importance. Because it is located on the banks of the Peace River, major changes in hydrological processes (ex. Proposed Site “C” dam) will have drastic impacts on the species in this area. Best Management Practices Current management guidelines for plant species at risk are focused at the stand level. If a potential plant species at risk is located, it is recommended that the area have ribbon placed around it, photos taken and field cards filled out with the exact location recorded. This information should then be passed on to the designated species at risk coordinator. This is essentially a fine filter approach to managing the identified species, where an individual species and/or habitat is managed singularly and at a small scale (i.e. at the stand level). This approach should be used in association with a coarse filter approach which involves management for a variety of species/habitats simultaneously, mainly through the use of broad scale provisions at the landscape level such as protected areas and parks. Both the plant species at risk and habitat they occur in should be protected. The current management strategies for plant species at risk are based on the Identified Wildlife Management Strategy (IWMS) wildlife and wildlife habitat provisions/measures set out by the BC Government. The best management practices are as follows: establish a core area around a known element occurrence with a 30-50 m wide buffer establish a management zone around the core area that is 150-200 m wide around the buffer do not harvest within the core area, unless harvesting is aimed specifically at improving the habitat for the particular rare plant species keep the identified area ( core area + buffer) free from herbicide use deactivate temporary roads after use, do not allow road or trail construction upslope or within the element occurrence restrict access to high elevation areas with the use of gates and trenches where roads already exist or are necessary, ensure road is not changing the hydrology of element occurrence habitat ensure road maintenance activities do not alter, damage, or destroy the element occurrence if seeding occurs, use native species (prevent spread of exotic plant species) 148 Species and plant communities at risk accounts in the BCTS Peace – Liard Business Area Further Information and Links: British Columbia Conservation Data Centre: http://a100.gov.bc.ca/pub/eswp/speciesSummary.do?id=14345 Douglas, G.W., D. Meidinger, and J. Penny. 2002. Rare Native Vascular Plants of British Columbia, 2nd ed. B.C. Conserv. Data Centre, Terrestrial Inf. Branch, Victoria. Douglas, G.W., D. Meidinger, and J. Pojar, eds. 2001b. Illustrated Flora of British Columbia, Vol. 2, Monocotyledons (Orchidaceae through Zosteraceae). B.C. Minist. Sustainable Resour. Manage., and B.C. Minist. For. Victoria, BC. E-Flora BC: Electronic Atlas of the Plants of British Columbia: http://linnet.geog.ubc.ca/Atlas/Atlas.aspx?sciname=Atriplex+nuttallii Identified Wildlife Management Strategy – BC Ministry Of Environment: http://www.env.gov.bc.ca/wld/frpa/iwms/index.html 149 Species and plant communities at risk accounts in the BCTS Peace – Liard Business Area 150 Species and plant communities at risk accounts in the BCTS Peace – Liard Business Area 3.2 Wildflowers Alpine Meadow-Foxtail Alopecurus alpinus Kingdom Phylum Class Order Family Genus Species Plantae Anthophyta Monocotyledoneae Cyperales Poaceae Alopecurus alpinus Description General: Alpine meadow- foxtail is a perennial, tufted grass stemming from short rhizomes that grows to 20-80 cm in height. Sheaths are open and the blades are flat and have short hairs. Ligules are finely eroded, blunt and irregularly jagged. Spikes are cylinder- Photo goes here shaped with spikelets less than 4.5 mm in length. Dry, membranous bracts have dense, long woolly hairs on the entire surface. The outer, flower-enclosing bract has rounded tips. Status: Global: G5 Canada: Provincial: S1S3 -- Red Distribution BEC Units: BWBSmw, SWBmk Forest District: DPC (Peace District) Know locations: In British Columbia, alpine meadow-foxtail is rare and has only been recorded from the Beatton River to Pink Mountain areas of the province. Habitat The alpine meadow-foxtail is found in moist meadows in the subalpine zone. 151 Species and plant communities at risk accounts in the BCTS Peace – Liard Business Area Threats and Concerns The main threats to this species are oil and gas exploration and development, mining, forest harvesting, and road construction, which may occur in or adjacent to preferred habitat. Best Management Practices Current management guidelines for plant species at risk are focused at the stand level. If a potential plant species at risk is located, it is recommended that the area have ribbon placed around it, photos taken and field cards filled out with the exact location recorded. This information should then be passed on to the designated species at risk coordinator. This is essentially a fine filter approach to managing the identified species, where an individual species and/or habitat is managed singularly and at a small scale (i.e. at the stand level). This approach should be used in association with a coarse filter approach which involves management for a variety of species/habitats simultaneously, mainly through the use of broad scale provisions at the landscape level such as protected areas and parks. Both the plant species at risk and habitat they occur in should be protected.
Load more

Recommended publications
  • Standardized National Vegetation Classification System Report
    USGS/NPS Vegetation Mapping Program Standardized National Vegetation Classification System - Final Draft Final Draft Standardized National Vegetation Classification System USGS/NPS Vegetation Mapping Program November 1994 Prepared for: United States Department of Interior United States Geological Survey and National Park Service Prepared By: The Nature Conservancy 1815 N. Lynn Street Arlington, Virginia 22209 Environmental Systems Research Institute 380 New York Street Redlands, California 92373 USGS/NPS Vegetation Mapping Program Standardized National Vegetation Classification System - Final Draft ESRI, ARC/INFO, PC ARC/INFO, ArcView, and ArcCAD are registered trademarks of Environmental Systems Research Institute, Inc. ARC/INFO COGO, ARC/INFO NETWORK, ARC/INFO TIN, ARC/INFO GRID, ARC/INFO LIBRARIAN, ARCSHELL, ARCEDIT, ARCPLOT, ARC Macro Language (AML), Simple Macro Language (SML), DATABASE INTEGRATOR, IMAGE INTEGRATOR, WorkStation ARC/INFO, ArcBrowser, ArcCensus, ARC News, ArcKits, ARCware, ArcCity, ArcDoc, ArcExpress, ArcFrame, ArcScan, ArcScene, ArcSchool, ArcSdl, ArcStorm, ArcTools, ArcUSA, ArcWorld, Avenue, FormEdit, Geographic User Interface (GUI), Geographic User System (GUS), Geographic Table of Contents (GTC), ARC Development Framework (ADF), PC ARCEDIT, PC ARCPLOT, PC ARCSHELL, PC OVERLAY, PC NETWORK, PC DATA CONVERSION, PC STARTER KIT, TABLES, University LAB KIT, the ESRI corporate logo, the ARC/INFO logo, the PC ARC/INFO logo, the ArcView logo, the ArcCAD logo, the ArcData logo, ESRI—Team GIS, and ESRI—The GIS People are trademarks of Environmental Systems Research Institute, Inc. ARCMAIL, ArcData, and Rent-a-Tech are service marks of Environmental Systems Research Institute, Inc. Other companies and products herein are trademarks or registered trademarks of their respective trademark owners. The information contained in any associated brochures is subject to change without notice.
    [Show full text]
  • Phylogenetic Models Linking Speciation and Extinction to Chromosome and Mating System Evolution
    Phylogenetic Models Linking Speciation and Extinction to Chromosome and Mating System Evolution by William Allen Freyman A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Integrative Biology and the Designated Emphasis in Computational and Genomic Biology in the Graduate Division of the University of California, Berkeley Committee in charge: Dr. Bruce G. Baldwin, Chair Dr. John P. Huelsenbeck Dr. Brent D. Mishler Dr. Kipling W. Will Fall 2017 Phylogenetic Models Linking Speciation and Extinction to Chromosome and Mating System Evolution Copyright 2017 by William Allen Freyman Abstract Phylogenetic Models Linking Speciation and Extinction to Chromosome and Mating System Evolution by William Allen Freyman Doctor of Philosophy in Integrative Biology and the Designated Emphasis in Computational and Genomic Biology University of California, Berkeley Dr. Bruce G. Baldwin, Chair Key evolutionary transitions have shaped the tree of life by driving the processes of spe- ciation and extinction. This dissertation aims to advance statistical and computational ap- proaches that model the timing and nature of these transitions over evolutionary trees. These methodological developments in phylogenetic comparative biology enable formal, model- based, statistical examinations of the macroevolutionary consequences of trait evolution. Chapter 1 presents computational tools for data mining the large-scale molecular sequence datasets needed for comparative phylogenetic analyses. I describe a novel metric, the miss- ing sequence decisiveness score (MSDS), which assesses the phylogenetic decisiveness of a matrix given the pattern of missing sequence data. In Chapter 2, I introduce a class of phylogenetic models of chromosome number evolution that accommodate both anagenetic and cladogenetic change.
    [Show full text]
  • "National List of Vascular Plant Species That Occur in Wetlands: 1996 National Summary."
    Intro 1996 National List of Vascular Plant Species That Occur in Wetlands The Fish and Wildlife Service has prepared a National List of Vascular Plant Species That Occur in Wetlands: 1996 National Summary (1996 National List). The 1996 National List is a draft revision of the National List of Plant Species That Occur in Wetlands: 1988 National Summary (Reed 1988) (1988 National List). The 1996 National List is provided to encourage additional public review and comments on the draft regional wetland indicator assignments. The 1996 National List reflects a significant amount of new information that has become available since 1988 on the wetland affinity of vascular plants. This new information has resulted from the extensive use of the 1988 National List in the field by individuals involved in wetland and other resource inventories, wetland identification and delineation, and wetland research. Interim Regional Interagency Review Panel (Regional Panel) changes in indicator status as well as additions and deletions to the 1988 National List were documented in Regional supplements. The National List was originally developed as an appendix to the Classification of Wetlands and Deepwater Habitats of the United States (Cowardin et al.1979) to aid in the consistent application of this classification system for wetlands in the field.. The 1996 National List also was developed to aid in determining the presence of hydrophytic vegetation in the Clean Water Act Section 404 wetland regulatory program and in the implementation of the swampbuster provisions of the Food Security Act. While not required by law or regulation, the Fish and Wildlife Service is making the 1996 National List available for review and comment.
    [Show full text]
  • A General Idea About Phytomelanin Layer in Some
    Indian Journal of Plant Sciences ISSN: 2319-3824 (Online) An Online International Journal Available at http://www.cibtech.org/jps.htm 2013 Vol. 2 (4) October-December, pp.44-48/Jana and Mukherjee Review Article A GENERAL IDEA ABOUT PHYTOMELANIN LAYER IN SOME COMPOSITAE *Jana Bidyut Kumar and Mukherjee Sobhan Kumar Taxonomy and Biosystematics Laboratory, Department of Botany, University of Kalyani, Kalyani- 741235, Nadia, West Bengal, India *Author for Correspondence ABSTRACT The present paper deals with the general idea about the phytomelanin layer, on the surface of cypsela of some Compositae, with the help of both compound light microscope and scanning electrone microscope. Phytomelanin layer is made up of hard, black, water resistant resinous or tanniniferous or polyvinyl alcohol containing disputed substance, usually found in the cypselar wall of some members of the family Compositae belonging to the tribes-Coreopsideae, Helenieae, Heliantheae, Eupatorieae, Millerieae, Perityleae etc. Key Words: Phytomelanin Layer; Cypselar Surface; Compositae INTRODUCTION The Compositae are regarded as a fairly advanced family of the dicotyledons (Takhtajan, 1997) and are one of the largest family of angiosperms, consisting of 43 tribes, 1600- 1700 genera and 24000 species (Funk et al., 2009). Many members of the Compositae are cosmopolitan, found specially in temperate or tropical montane regions and open and / or dry habitats. Phytomelanin layer is made up of a type of hard, black, water resistant resinous or tanniniferous or polyvinyl alcohol containing disputed phytomelanin substance, usually found in the cypselar wall of some members of the family Compositae belonging to the tribes Coreopsideae (Jana and Mukherjee, 2012), Heliantheae, Eupatorieae (Pandey and Dakhal, 2001) etc.
    [Show full text]
  • Literature Cited
    Literature Cited Robert W. Kiger, Editor This is a consolidated list of all works cited in volumes 19, 20, and 21, whether as selected references, in text, or in nomenclatural contexts. In citations of articles, both here and in the taxonomic treatments, and also in nomenclatural citations, the titles of serials are rendered in the forms recommended in G. D. R. Bridson and E. R. Smith (1991). When those forms are abbre- viated, as most are, cross references to the corresponding full serial titles are interpolated here alphabetically by abbreviated form. In nomenclatural citations (only), book titles are rendered in the abbreviated forms recommended in F. A. Stafleu and R. S. Cowan (1976–1988) and F. A. Stafleu and E. A. Mennega (1992+). Here, those abbreviated forms are indicated parenthetically following the full citations of the corresponding works, and cross references to the full citations are interpolated in the list alphabetically by abbreviated form. Two or more works published in the same year by the same author or group of coauthors will be distinguished uniquely and consistently throughout all volumes of Flora of North America by lower-case letters (b, c, d, ...) suffixed to the date for the second and subsequent works in the set. The suffixes are assigned in order of editorial encounter and do not reflect chronological sequence of publication. The first work by any particular author or group from any given year carries the implicit date suffix “a”; thus, the sequence of explicit suffixes begins with “b”. Works missing from any suffixed sequence here are ones cited elsewhere in the Flora that are not pertinent in these volumes.
    [Show full text]
  • Impacts of Agricultural Management Systems on Biodiversity and Ecosystem Services in Highly Simplified Dryland Landscapes
    sustainability Review Impacts of Agricultural Management Systems on Biodiversity and Ecosystem Services in Highly Simplified Dryland Landscapes Subodh Adhikari 1,2,* , Arjun Adhikari 3,4, David K. Weaver 1 , Anton Bekkerman 5 and Fabian D. Menalled 1,* 1 Department of Land Resources and Environmental Sciences, Montana State University, P.O. Box 173120, Bozeman, MT 59717-3120, USA; [email protected] 2 Department of Entomology, Plant Pathology and Nematology; 875 Perimeter Drive MS 2329, Moscow, ID 83844-2329, USA 3 Department of Ecology, Montana State University, P.O. Box 173460, Bozeman, MT 59717-3460, USA; [email protected] 4 Natural Resource Ecology and Management, 008C Agricultural Hall, Oklahoma State University, Stillwater, OK 74078, USA 5 Department of Agricultural Economics and Economics, P.O. Box 172920, Bozeman, MT 59717-3460, USA; [email protected] * Correspondence: [email protected] (S.A.); [email protected] (F.D.M.) Received: 2 May 2019; Accepted: 9 June 2019; Published: 11 June 2019 Abstract: Covering about 40% of Earth’s land surface and sustaining at least 38% of global population, drylands are key crop and animal production regions with high economic and social values. However,land use changes associated with industrialized agricultural managements are threatening the sustainability of these systems. While previous studies assessing the impacts of agricultural management systems on biodiversity and their services focused on more diversified mesic landscapes, there is a dearth of such research
    [Show full text]
  • Characterization of Hybrids from Crosses Between Cultivated Helianthus Annuus L
    Wild Species and Genetic Resources Characterization of hybrids from crosses between cultivated Helianthus annuus L. and subspecies rydbergii (Britton) Long of perennial diploid Helianthus nuttallii Miroslava M. Hristova-Cherbadzi, Michail Christov Dobroudja Agricultural Institute, General Toshevo 9520, Bulgaria, E-mail: [email protected]; [email protected] ABSTRACT The subspecies rydbergii (Britton) Long of the perennial diploid species Helianthus nuttallii was included in hybridization with the cultivated sunflower Helianthus annuus L. The investigation encompassed the period 1999-2007. H. nuttallii ssp. rydbergii could be crossed with the cultivated sunflower, but hybridization was difficult and the crossability rate was low. Seeds were obtained at both directions of crossing and hybrid plants - from the direct crosses. All F1 plants showed an annual growth cycle. The heritability in first generation was intermediate but the plants strongly resembled the wild species in their most important biomorphological traits. The polymorphism between H. annuus, H. nuttallii spp. rydbergii and their F1 hybrids was studied by RAPD. The F1 plants were also cytologically investigated. From H. nuttallii ssp. rydbergii were transferred in F1 genes that controlled such characters as, period of vegetation, plant height, type of branching, size and form of inflorescence and seeds, degree of anthocyanin coloration, seed oil content (60.84%), resistance to Plasmopara helianthi, races 300 and 700, Phomopsis helianthi, Phoma macdonaldii and Orobanche cumana. It was established that the subspecies was a source of Rf gene for CMS Pet-1 and the control was dominant and monogenic. As a result of self- pollination, sib-pollination of the F1 plants and back-crossing with cultivated sunflower, F2, BC1 were obtained.
    [Show full text]
  • Biological Survey of a Prairie Landscape in Montana's Glaciated
    Biological Survey of a Prairie Landscape in Montanas Glaciated Plains Final Report Prepared for: Bureau of Land Management Prepared by: Stephen V. Cooper, Catherine Jean and Paul Hendricks December, 2001 Biological Survey of a Prairie Landscape in Montanas Glaciated Plains Final Report 2001 Montana Natural Heritage Program Montana State Library P.O. Box 201800 Helena, Montana 59620-1800 (406) 444-3009 BLM Agreement number 1422E930A960015 Task Order # 25 This document should be cited as: Cooper, S. V., C. Jean and P. Hendricks. 2001. Biological Survey of a Prairie Landscape in Montanas Glaciated Plains. Report to the Bureau of Land Management. Montana Natural Heritage Pro- gram, Helena. 24 pp. plus appendices. Executive Summary Throughout much of the Great Plains, grasslands limited number of Black-tailed Prairie Dog have been converted to agricultural production colonies that provide breeding sites for Burrow- and as a result, tall-grass prairie has been ing Owls. Swift Fox now reoccupies some reduced to mere fragments. While more intact, portions of the landscape following releases the loss of mid - and short- grass prairie has lead during the last decade in Canada. Great Plains to a significant reduction of prairie habitat Toad and Northern Leopard Frog, in decline important for grassland obligate species. During elsewhere, still occupy some wetlands and the last few decades, grassland nesting birds permanent streams. Additional surveys will have shown consistently steeper population likely reveal the presence of other vertebrate declines over a wider geographic area than any species, especially amphibians, reptiles, and other group of North American bird species small mammals, of conservation concern in (Knopf 1994), and this alarming trend has been Montana.
    [Show full text]
  • R11 Forest Management Plan : Part 3
    R11 Forest Management Plan 3.6 Detailed Indicator Sheets Indicator 1.1.1 Value: Biodiversity – Ecosystem Diversity Objective: Conserve ecosystem diversity by emulating natural disturbance patterns and the range of variation therein (i.e., coarse filter approach). Indicator: Treatment size and residual pattern. Target: Treatment size and pattern within the natural range of variation: multiple treatments over a series of years may be clustered to emulate larger natural burns. Greater than two thirds of these treatment events will be 600 ha or larger. The planning boundaries for individual treatment events will provide a minimum of 15% remnant undisturbed forest, with the average amount of post-treatment remnant area falling between 29% and 49%. Current Status: In developing this indicator and the associated targets, the Planning Team reviewed the work done by the Foothills Model Forest Natural Disturbance Program and the associated Highway 40 North Demonstration Project. The Natural Disturbance Program is a large research project that has been studying fire regimes in the Rocky Mountain and Foothills Natural Regions of west-central Alberta. The Highway 40 project is a multi-partner initiative that is demonstrating how research results from the Natural Disturbance Program can be incorporated into a natural disturbance emulation approach to planning industrial activity. Assessing this indicator using methods similar to those of the Highway 40 project demonstrates use of the best available science, a direct recommendation of the Charrette process (Objective 5.1). Although the Foothills Model Forest study did not occur within the R11 FMU boundary, the study area did border R11 to the north-west and contained a similar compliment of natural subregions (Lower Foothills, Upper Foothills, Montane, Subalpine, and Alpine).
    [Show full text]
  • Porter's Sagebrush Is Endemic to the Wind River and Powder River Basins in Central Wyoming
    Status of Porter’s Sagebrush (Artemisia porteri) in Wyoming Prepared for the Bureau of Land Management Wyoming State Office And Wyoming Natural Diversity Database, University of Wyoming By Walter Fertig Botanical Consultant 1117 West Grand Canyon Dr. Kanab, UT 84741 25 September 2002 Agreement # K910-A4-0011 Task Order No. TO-09 ABSTRACT Porter's sagebrush is endemic to the Wind River and Powder River basins in central Wyoming. It is found primarily in sparsely vegetated Artemisia pedatifida, A. longifolia, or A. porteri communities on barren clay or ashy badlands, flats, or gullies derived from the Wind River, Wagon Bed, or Frontier formations. This species is currently known from 11 extant occurrences consisting of at least 60 subpopulations covering less than 1250 acres. Individual colonies typically number from 100-1000 individuals and occupy areas of 1-50 acres. Based on surveys in 1999, the current population of Porter's sagebrush is conservatively estimated at 50,000-75,000 plants. Porter's sagebrush is primarily threatened by mineral development (oil, natural gas and uranium) within its limited range and specialized habitat. This species was designated as Sensitive by the BLM in 2001 and occurs primarily on BLM lands in the Buffalo, Casper, and Lander field offices. No populations currently receive formal protection, although the population in the Lysite Badlands is managed under special use regulations in the BLM Lander Resource Area Resource Management Plan. Porter's sagebrush is now known to be more widespread and abundant in Wyoming than previously suspected. Until sufficient habitat is afforded protection or management strategies are developed and implemented for this species in mineral extraction areas, A.
    [Show full text]
  • The Vascular Plants of British Columbia Part 1 - Gymnosperms and Dicotyledons (Aceraceae Through Cucurbitaceae)
    The Vascular Plants of British Columbia Part 1 - Gymnosperms and Dicotyledons (Aceraceae through Cucurbitaceae) by George W. Douglas1, Gerald B. Straley2 and Del Meidinger3 1 George Douglas 2 Gerald Straley 3 Del Meidinger 6200 North Road Botanical Garden Research Branch R.R.#2 University of British Columbia B.C. Ministry of Forests Duncan, B.C. V9L 1N9 6501 S.W. Marine Drive 31 Bastion Square Vancouver, B.C. V6T 1Z4 Victoria, B. C. V8W 3E7 April 1989 Ministry of Forests THE VASCULAR PLANTS OF BRITISH COLUMBIA Part 1 - Gymnosperms and Dicotyledons (Aceraceae through Cucurbitaceae) Contributors: Dr. G.W. Douglas, Douglas Ecological Consultants Ltd., Duncan, B.C. — Aceraceae through Betulaceae Brassicaceae (except Arabis, Cardamine and Rorippa) through Cucurbitaceae. Mr. D. Meidinger, Research Branch, B.C. Ministry of Forests, Victoria, B.C. — Gymnosperms. Dr. G.B. Straley, Botanical Garden, University of B.C., Vancouver, B.C. — Boraginaceae, Arabis and Rorippa. With the cooperation of the Royal British Columbia Museum and the Botanical University of British Columbia. ACKNOWLEDGEMENTS We are grateful to Dr. G.A. Allen for providing valuable suggestions during the initial stages of the project. Thanks are also due to Drs. G.A. Allen, A. Ceska and F. Ganders for reviewing taxonomically difficult groups. Mrs. O. Ceska reviewed the final draft of Part 1. Mr. G. Mulligan kindly searched the DAO herbarium and provided information on Brassicaceae. Dr. G. Argus helped with records from CAN. Louise Gronmyr and Jean Stringer kindly typed most of the contributions and helped in many ways in the production of the final manuscript which was typeset by Beth Collins.
    [Show full text]
  • CBA/ABC Bulletin 38(3)
    Contents Table des matières The Canadian Botanical President’s Message page 25 Motions adopted at the AGM Association Bulletin page 26 Editor’s Message / Message du rédacteur page 26 Lawson Medal - Mary E. Elliott Award 2005 Vipen Sawhney page 27 CBA Student Awards 2005 page 28 Bulletin de l’Association Papers / Articles botanique du Canada October/ Octobre 200 5 • Volume 38 No. / No 3 Poorly Known Economic Plants of Canada - 46. Black chokeberry ().Photinia melanocarpa President’s message E. Small and P.M. Catling pages 29-34 Dear CBA/ABC member: The Global Taxonomy Initiative Mark Graham Hope you are all having an exciting and enjoyable summer. A year has gone by pages 35-36 since I took over as the President and I feel that although we have moved forward on a few things, there is still a lot to be accomplished. News from the Teaching Section Christine D. Maxwell First of all, I would like to thank all of you for your support in the last year. In page 37 particular, I want to thank all members of the Board who truly have done an outstanding job in each of their respective responsibilities. We are grateful to the Book Reviews / Revues de livres out-going executive membersChristine Maxwell , the secretary, and Roisin pages 38-43 Mulligan, the Vice-President, for their dedicated service and enormous help to the Association. We welcomeMarian Munro as the new secretary and Daya F.S. Gilliam and M.R. Roberts: The Herbaceous Layer in Forests Dayanandan as the Vice-President and I look forward to working with them.
    [Show full text]