DOCSLIB.ORG

Federal Register / Vol. 61, No. 40 / Wednesday, February 28, 1996 / Proposed Rules 7457

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Federal Register / Vol. 61, No. 40 / Wednesday, February 28, 1996 / Proposed Rules 7457 Federal Register / Vol. 61, No. 40 / Wednesday, February 28, 1996 / Proposed Rules 7457 List of Subjects in 48 CFR Parts 401 candidate list may very well be restored tridentata) communities. Recent survey through 453 to candidate status if additional information indicates there are at least Government contracts, Government information supporting such a change 66 extant populations of Aase's onion procurement. becomes available to the Service. (containing approximately 400,000 Requests for such information were individuals), with 49 of these Ira L. Hobbs, issued by the Service in the 1993 Plant populations having more than 1,000 Director of Operations. Notice of Review (58 FR 51144; individuals. Because threats from [FR Doc. 96±4499 Filed 2±27±96; 8:45 am] September 30, 1993) and the 1994 suspected hybridization with other BILLING CODE 3410±98±M Animal Notice of Review (59 FR 58982; species have been shown to be November 15, 1994). A combined plant unfounded and because of the size and and animal notice of review, requesting distribution of extant populations, A. DEPARTMENT OF THE INTERIOR updated information on candidate aaseae is removed from candidate species, is being published elsewhere in status. Fish and Wildlife Service today's Federal Register. Allium dictuon (Blue Mountain onion) is known only from the vicinity 50 CFR Part 17 Findings of Weller Butte in the Blue Mountains Candidate species are those species Endangered and Threatened Species; of Columbia County, Washington. Five for which the Service has on file occurrences of this plant are historically Notice of Reclassification of 96 sufficient information to support and currently known within a range of Candidate Taxa issuance of a proposed rule to list under about 4 square miles. Population AGENCY: Fish and Wildlife Service, the Act. The Service recently completed estimates for this species range between Interior. a review of all candidate species to 1,000 and 3,000 plants. The species is ACTION: Notice of candidate taxa assure that this definition is uniformly removed from candidate status because reclassification. applicable. The results of this review it is believed to be stable and the threats indicate that 88 plant taxa and 8 animal associated with recreational use are SUMMARY: In this document, the U.S. taxa included in the settlement exhibits uncertain. Cattle grazing does occur in Fish and Wildlife Service (Service) should be removed from candidate the vicinity of Weller Butte, but the provides explanation for changes in the status. There are four primary impact of this activity on Allium status of 96 taxa of plants and animals explanations for these reclassifications: dictuon is uncertain and data currently that are under review for possible (1) The taxon is believed or known to available to the Service do not indicate addition to the List of Endangered and be extinct; (2) the taxon is not a listable that listing is warranted. Threatened Wildlife and Plants (List) entity or is the subject of taxonomic Allium hickmanii (Hickman's onion) under the Endangered Species Act (Act) review; (3) the taxon is more occurs in Monterey and San Luis of 1973, as amended. widespread than previously thought or Obispo Counties (California) and is ADDRESSES: Comments and questions not subject to identified threats; and (4) associated with closed-cone coniferous concerning this notice should be sent to Service files contain insufficient forests, chaparral, coastal prairie, coastal the Chief, Division of Endangered information on status and threats to scrub, and valley and foothill Species, U.S. Fish and Wildlife Service, justify issuing a proposed rule. This grasslands. Additional populations of 1849 C Street, N.W., Mail Stop ARLSQ± notice provides specific explanations for Hickman's onion have been found in the 452, Washington, D.C., 20240. each of the 96 reclassifications. last five years, indicating the species is The Ciervo aegialian scarab beetle more widespread than previously FOR FURTHER INFORMATION CONTACT: (Aegialia concinna) is a flightless, known. Also, information in Service E. LaVerne Smith, Chief, Division of fossorial beetle that was first described files is currently insufficient to support Endangered Species, at telephone in 1977: long-term information on issuance of a proposed listing, so this number (703/358±2171). species trends is not available. General species is removed from candidate SUPPLEMENTARY INFORMATION: threats from urban, suburban, and status. agricultural development were Artemisia campestris wormskioldii Background identified when this species was first (northern wormwood) was historically In December 1992, the Service designated as a candidate. Additional known from the banks of the Columbia reached a settlement agreement populations have been discovered in River near the mouth of the John Day (agreement) with the plaintiffs in the Fresno, San Joaquin, and Costa River in Wasco County, Oregon, Fund For Animals et al. v. Lujan et al. Counties. These discoveries include westward to the vicinity of the Hood case (D.D.C. Civ. No. 92±800) that new habitat types and suggest that the River. Today it is known from two provides for the Service to review the species is not likely to become widely disjunct sites along the listing status of species regarded as threatened or endangered in the Columbia River in Washington. Possible Category 1 candidates as of September foreseeable future. The species is trampling associated with recreational 1, 1992. For any species covered by the removed from candidate status because activity is the only identified threat to agreement and removed from candidate of the recent discoveries and limited this species. The most recent status (Category 1) status because listing is no information on habitat requirements, information indicated a declining trend, longer considered to be warranted, the life history, and status needed to but those data are from 1989. It is Service must publish a notice in the prepare a proposed listing. removed from candidate status Federal Register that provides Allium aaseae (Aase's onion) is a primarily because the Service lacks explanation for the reclassification. This small, perennial plant that is endemic to sufficient information on current status notice is published to comply with the southwestern Idaho. The species occurs to issue a proposed listing. above requirement. on relatively barren, xeric habitats with Aster jessicae (Jessica's aster) is It is important to note that candidate gentle to steep slopes and is usually endemic to mesic grasslands or steppe assessment is an ongoing function and associated with sparsely vegetated vegetation of the Palouse region in changes in status should be expected. bitterbrush (Purshia tridentata) or southeast Washington and northern Species that are removed from the bitterbrush/sagebrush (Artemisia Idaho. The species is currently known 7458 Federal Register / Vol. 61, No. 40 / Wednesday, February 28, 1996 / Proposed Rules from three population centers, two in River in Kittitas, Yakima, and Benton Calochortus nitidus (broad-fruit Idaho and one in Washington. Review of counties in Washington. Though once mariposa lily) is a perennial herb with file information indicates that the presumed extirpated in Washington, 29 large, showy flowers that is endemic to threats from grazing, non-native plants, populations have been documented in mid-elevation grassland habitats of the and land use practices are not the past 15 years, four of these in 1994. Palouse region in north-central Idaho. sufficiently severe to support a Approximately 55,000 plants are known The taxon was previously known from proposed listing. Also, additional to exist and viable seeds are being southeast Washington but is now information on the status of this species produced. The recent discovery of considered to be extirpated from the is needed. It is removed from candidate additional populations and apparent State. C. nitidus is currently known status primarily because the Service stability justify removal from candidate from more than 100 populations that lacks current information on biological status. range in size from a few individuals to vulnerability and threats needed for Astragalus mulfordiae (Mulford's several thousand plants. The species is preparation of a proposed listing. milk-vetch) is endemic to the western believed to be stable and faces only Aster puniceus ssp. elliotti var. Snake River plain in Idaho and Oregon. weak threats from grazing, scabricaulis (Synphyotrichum Removal from candidate status is nonindigenous plants, logging, and puniceum var. scabricaule; rough- justified by identification of 36 extant agriculture. A conservation agreement stemmed aster) inhabits wetland areas populations and a lack of information was signed in 1991 to conserve C. in east-central Texas. Recent survey on threats to the species. The estimated nitidus on a parcel of land transferred work has discovered three additional population size is approximately 15,000 from the Bureau of Land Management to populations and extended the range to individuals in Oregon and between private ownership and numerous other a new (Cherokee) county. A recent 3,000 and 4,000 individuals in Idaho. populations occur on BLM lands. taxonomic study has placed this taxon Because of poor documentation of Calochortus westonii (Shirley in the genus Synphyotrichum and the threats and the existence of stable Meadows mariposa lily) is a perennial validity of the taxon is being reviewed. populations, the species is
Load more

Recommended publications
  • Likely to Have Habitat Within Iras That ALLOW Road
    Item 3a - Sensitive Species National Master List By Region and Species Group Not likely to have habitat within IRAs Not likely to have Federal Likely to have habitat that DO NOT ALLOW habitat within IRAs Candidate within IRAs that DO Likely to have habitat road (re)construction that ALLOW road Forest Service Species Under NOT ALLOW road within IRAs that ALLOW but could be (re)construction but Species Scientific Name Common Name Species Group Region ESA (re)construction? road (re)construction? affected? could be affected? Bufo boreas boreas Boreal Western Toad Amphibian 1 No Yes Yes No No Plethodon vandykei idahoensis Coeur D'Alene Salamander Amphibian 1 No Yes Yes No No Rana pipiens Northern Leopard Frog Amphibian 1 No Yes Yes No No Accipiter gentilis Northern Goshawk Bird 1 No Yes Yes No No Ammodramus bairdii Baird's Sparrow Bird 1 No No Yes No No Anthus spragueii Sprague's Pipit Bird 1 No No Yes No No Centrocercus urophasianus Sage Grouse Bird 1 No Yes Yes No No Cygnus buccinator Trumpeter Swan Bird 1 No Yes Yes No No Falco peregrinus anatum American Peregrine Falcon Bird 1 No Yes Yes No No Gavia immer Common Loon Bird 1 No Yes Yes No No Histrionicus histrionicus Harlequin Duck Bird 1 No Yes Yes No No Lanius ludovicianus Loggerhead Shrike Bird 1 No Yes Yes No No Oreortyx pictus Mountain Quail Bird 1 No Yes Yes No No Otus flammeolus Flammulated Owl Bird 1 No Yes Yes No No Picoides albolarvatus White-Headed Woodpecker Bird 1 No Yes Yes No No Picoides arcticus Black-Backed Woodpecker Bird 1 No Yes Yes No No Speotyto cunicularia Burrowing
    [Show full text]
  • Botany, Invasive Plants, Native Plants, Genetics
    United States Department of Agriculture Forest Service Pacific Northwest FY-16 Region Program Accomplishments Calochortus umpquaensis, Umpqua mariposa lily, is found only in the Umpqua River watershed of Botany southwestern OR. A big "anthophorid" bee is tucked into the flower. Invasive Plants Native Plants Genetics U.S. Department of Agriculture (USDA) civil rights regulations and policies In accordance with Federal civil rights law and U.S. Department of Agriculture (USDA) civil rights regulations and policies, the USDA, its Agencies, offices, and employees, and institutions participating in or administering USDA programs are prohibited from discriminating based on race, color, national origin, religion, sex, gender identity (including gender expression), sexual orientation, disability, age, marital status, family/parental status, income derived from a public assistance program, political beliefs, or reprisal or retaliation for prior civil rights activity, in any program or activity conducted or funded by USDA (not all bases apply to all programs). Remedies and complaint filing deadlines vary by program or incident. Persons with disabilities who require alternative means of communication for program information (e.g., Braille, large print, audiotape, American Sign Language, etc.) should contact the responsible Agency or USDA’s TARGET Center at (202) 720-2600 (voice and TTY) or contact USDA through the Federal Relay Service at (800) 877-8339. To file a program discrimination complaint, complete the USDA Program Discrimination Complaint Form, AD-3027, found online at http://www.ascr.usda.gov/complaint_filing_cust.html and at any USDA office or write a letter addressed to USDA and provide in the letter all of the information requested in the form.
    [Show full text]
  • Outline of Angiosperm Phylogeny
    Outline of angiosperm phylogeny: orders, families, and representative genera with emphasis on Oregon native plants Priscilla Spears December 2013 The following listing gives an introduction to the phylogenetic classification of the flowering plants that has emerged in recent decades, and which is based on nucleic acid sequences as well as morphological and developmental data. This listing emphasizes temperate families of the Northern Hemisphere and is meant as an overview with examples of Oregon native plants. It includes many exotic genera that are grown in Oregon as ornamentals plus other plants of interest worldwide. The genera that are Oregon natives are printed in a blue font. Genera that are exotics are shown in black, however genera in blue may also contain non-native species. Names separated by a slash are alternatives or else the nomenclature is in flux. When several genera have the same common name, the names are separated by commas. The order of the family names is from the linear listing of families in the APG III report. For further information, see the references on the last page. Basal Angiosperms (ANITA grade) Amborellales Amborellaceae, sole family, the earliest branch of flowering plants, a shrub native to New Caledonia – Amborella Nymphaeales Hydatellaceae – aquatics from Australasia, previously classified as a grass Cabombaceae (water shield – Brasenia, fanwort – Cabomba) Nymphaeaceae (water lilies – Nymphaea; pond lilies – Nuphar) Austrobaileyales Schisandraceae (wild sarsaparilla, star vine – Schisandra; Japanese
    [Show full text]
  • A Self--Guided Tour
    SONOMA STATE UNIVERSITY A SELF--GUIDED TOUR School of Social Sciences SONOMA- Department of Environmental Studies and Planning STATE UNIVERSITY . A self-guided tour Written by: Kenneth M. Stocking Professor ·Emeritus, Environmental Studies and Planning Robert J. Sherman, Professor of Biology Karen Tillinghast, Lead Gardener, Landscape Services 1st Revision, 1997, by Brian King and Karen Tillinghast 2nd Revision, 2006, by Katherine Musick and Karen Tillinghast ACKNOWLEDGEMENTS TABLE OF CONTENTS Our appreciation and thanks to the students, staff, and faculty from Environmental Studies and Planning and Biology who have contributed in many ways toward the development of the garden. Introduction ....................................................... iv Concept of the Garden . ...................... iv Special thanks to the following: Layout of the Garden. v John Bond, Director of Plant Operations, Retired A. Oak Woodland. 1 William Mabry, Director of Plant Operations, Retired B. Yellow Pine Forest ............. ................................. 4 George Smith, Superintendent of Grounds, Retired C. Douglas-Fir Forest .................... ...... ..................... 7 Sam Youney, Superintendent of Grounds D. Mixed Evergreen. 8 E. Grassland ...................................................... 10 Organizations that have contributed time, effort, and plant specimens include: F. Chaparral . 12 California Flora Nursery G. Redwood Forest ................................................ 15 California Native Plant Society, Milo Baker Chapter H.
    [Show full text]
  • Complete Chloroplast Genomes Shed Light on Phylogenetic
    www.nature.com/scientificreports OPEN Complete chloroplast genomes shed light on phylogenetic relationships, divergence time, and biogeography of Allioideae (Amaryllidaceae) Ju Namgung1,4, Hoang Dang Khoa Do1,2,4, Changkyun Kim1, Hyeok Jae Choi3 & Joo‑Hwan Kim1* Allioideae includes economically important bulb crops such as garlic, onion, leeks, and some ornamental plants in Amaryllidaceae. Here, we reported the complete chloroplast genome (cpDNA) sequences of 17 species of Allioideae, fve of Amaryllidoideae, and one of Agapanthoideae. These cpDNA sequences represent 80 protein‑coding, 30 tRNA, and four rRNA genes, and range from 151,808 to 159,998 bp in length. Loss and pseudogenization of multiple genes (i.e., rps2, infA, and rpl22) appear to have occurred multiple times during the evolution of Alloideae. Additionally, eight mutation hotspots, including rps15-ycf1, rps16-trnQ-UUG, petG-trnW-CCA , psbA upstream, rpl32- trnL-UAG , ycf1, rpl22, matK, and ndhF, were identifed in the studied Allium species. Additionally, we present the frst phylogenomic analysis among the four tribes of Allioideae based on 74 cpDNA coding regions of 21 species of Allioideae, fve species of Amaryllidoideae, one species of Agapanthoideae, and fve species representing selected members of Asparagales. Our molecular phylogenomic results strongly support the monophyly of Allioideae, which is sister to Amaryllioideae. Within Allioideae, Tulbaghieae was sister to Gilliesieae‑Leucocoryneae whereas Allieae was sister to the clade of Tulbaghieae‑ Gilliesieae‑Leucocoryneae. Molecular dating analyses revealed the crown age of Allioideae in the Eocene (40.1 mya) followed by diferentiation of Allieae in the early Miocene (21.3 mya). The split of Gilliesieae from Leucocoryneae was estimated at 16.5 mya.
    [Show full text]
  • Guidelines for Determining Significance and Report Format and Content Requirements
    COUNTY OF SAN DIEGO GUIDELINES FOR DETERMINING SIGNIFICANCE AND REPORT FORMAT AND CONTENT REQUIREMENTS BIOLOGICAL RESOURCES LAND USE AND ENVIRONMENT GROUP Department of Planning and Land Use Department of Public Works Fourth Revision September 15, 2010 APPROVAL I hereby certify that these Guidelines for Determining Significance for Biological Resources, Report Format and Content Requirements for Biological Resources, and Report Format and Content Requirements for Resource Management Plans are a part of the County of San Diego, Land Use and Environment Group's Guidelines for Determining Significance and Technical Report Format and Content Requirements and were considered by the Director of Planning and Land Use, in coordination with the Director of Public Works on September 15, 2O1O. ERIC GIBSON Director of Planning and Land Use SNYDER I hereby certify that these Guidelines for Determining Significance for Biological Resources, Report Format and Content Requirements for Biological Resources, and Report Format and Content Requirements for Resource Management Plans are a part of the County of San Diego, Land Use and Environment Group's Guidelines for Determining Significance and Technical Report Format and Content Requirements and have hereby been approved by the Deputy Chief Administrative Officer (DCAO) of the Land Use and Environment Group on the fifteenth day of September, 2010. The Director of Planning and Land Use is authorized to approve revisions to these Guidelines for Determining Significance for Biological Resources and Report Format and Content Requirements for Biological Resources and Resource Management Plans except any revisions to the Guidelines for Determining Significance presented in Section 4.0 must be approved by the Deputy CAO.
    [Show full text]
  • 2017… Program of Work
    2017… PROGRAM OF WORK. Umatilla National Foresttt View from Oregon Butte - Pomeroy Ranger District United States Department of Agriculture FOREST SERVICE 1 The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or part of an individual’s income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA’s TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410, or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 2 TABLE OF CONTENTS Umatilla National Forest 2017 Program of Work 2016 Forest Staff and Accomplishments………………....…….. Page 5 South Zone Program of Work: Heppner Ranger District.………..…………………………..……….….. Page 7 North Fork John Day Ranger District………………………….…..….… Page 21 North Zone Program of Work: Pomeroy Ranger District …………………………..…………………… Page 33 Walla Walla Ranger District…………….……………………………..... Page 41 Forest-Wide Program of Work: Forest-wide projects…………………………………….…………….…
    [Show full text]
  • Idell Weydemeyer's Native Plants TREES SHRUBS & SUBSHRUBS
    Idell Weydemeyer’s Native Plants 11-04 Note: • All plants on here are drought resistant except those originating in moist areas. Some will die if given summer water. Sun required unless shade is mentioned. • “LOCAL” means found growing in Idell’s garden or within 100 yards; “Local” means growing within ten miles from the garden. • Thr & Endgr refers to plant posting on Threatened or Endangered List. • There is disagreement among authors as to the range or locations for various plants. TREES Native Plant Common Name Location Aesculus californica California Buckeye LOCAL; Central Coast Ranges to Sierras & Tehachapis; in woodlands, forests & chaparral; on dry slopes & canyons near water; takes clay; deciduous by July or August Arbutus menziesii Madrone Coast Ranges from Baja to British Columbia & N. Sierras; wooded slopes & canyons; full sun to high afternoon shade, well drained acidic soil Calocedrus decurrens Incense Cedar Oregon to Baja, Nevada & Utah; sandy to clay soil Cercidium floridum Palo Verde California, Arizona, Mexico & Central America; Southern California desert in creosote bush Blue Palo Verde scrub & Colorado Desert (in CA) below 3,000 feet; by dry creeks with water in summer & winter, perfect drainage, no summer water; deciduous part of year Pinus (possibly jeffreyi) Jeffrey Pine Platanus racemosa California Sycamore Coast Ranges & foothills in warmer parts of CA; along creeks; drought tolerant only with high Western Sycamore water table or along coast, tolerates full sun, part shade, seasonal flooding, sand & clay soil; deciduous in fall & winter Populus Cottonwood Regular water; deciduous in winter Prunus ilicifolia Holly-leaved Cherry Coast Ranges from Napa southward into Mexico & to Santa Catalina & San Clement Islands; on dry slopes & flats of foothills Prunus subcordata Klamath Plum Southern California Sierras, Northern California into Oregon; some moisture; deciduous in Sierra Plum winter Prunus virginiana (probably demissa) Chokecherry Most of the West into S.
    [Show full text]
  • Idaho PM Technical Note 2B (Revise): Plants for Pollinators in the Inland Northwest
    TECHNICAL NOTE USDA – Natural Resources Conservation Service Boise, Idaho - Spokane, Washington ______________________________________________________________________________ TN PLANT MATERIALS NO. 2B OCTOBER 2011 REVISION Plants for Pollinators in the Inland Northwest Dan Ogle, Plant Materials Specialist, NRCS, Boise, Idaho Pamela Pavek, Agronomist, NRCS Plant Materials Center, Pullman, Washington Richard Fleenor, Plant Materials Specialist, NRCS, Spokane, Washington Mark Stannard, Manager, NRCS Plant Materials Center, Pullman, Washington Tim Dring, State Biologist, NRCS, Spokane, Washington Jim Cane, Bee Biology and Systematics Lab, ARS, Logan, Utah Karen Fullen, State Biologist, NRCS, Boise, Idaho Loren St. John, Manager, NRCS Plant Materials Center, Aberdeen, Idaho Derek Tilley, Agronomist, NRCS Plant Materials Center, Aberdeen, Idaho Brownbelted bumble bee (Bombus griseocollis) visiting a blanketflower (Gaillardia aristata). Pamela Pavek The purpose of this Technical Note is to provide guidance for the design and implementation of conservation plantings to enhance habitat for pollinators including: bees, wasps, butterflies, moths and hummingbirds. Plant species included in this document are adapted to the Inland Northwest, which encompasses northern Idaho, northeastern Oregon and eastern Washington. For species adapted to southern Idaho, southeastern Oregon, northern Nevada and northern Utah, refer to Idaho Plant Materials Technical Note 2A. For lists of species adapted to western Washington and western Oregon, refer to the Oregon
    [Show full text]
  • Mulford's Milkvetch (Astragalus Mulfordiae)
    Mulford's milkvetch (Astragalus mulfordiae) ENDANGERED Flowers and fruit (left), habit (center), and habitat (right) of Mulford’s milkvetch. Photos by Andrea Thorpe (left) and Nancy Fredricks (center and right). If downloading images from this website, please credit the photographer. Family Fabaceae Plant description Mulford’s milkvetch is a perennial species with a long taproot and clustered, slender, wiry, thinly strigose stems, 3–20 cm long, arising from a woody, many-branched caudex. Leaves are 4–10 cm long including the petiole, with a flattened rachis and 11- 23 linear to elliptic leaflets, 0.3–0.8 cm long and nearly glabrous. Flowers are scattered, 5–20, in loose racemes on peduncles 5–8 cm long. The calyx is 0.28-0.5 cm long, strigose, with narrow triangular-subulate teeth slightly shorter than the tube. The corolla is whitish, drying yellow, the banner often bluish to purple lined or tinged, 0.5- 0.9 cm long. Pods are horizontally spreading, papery, inflated, 0.8-1.5 cm long, beaked, and almost triangular in cross-section. Valves are strigose and finely cross- veined, the ventral suture straight or curved slightly, the dorsal suture strongly curved. The slender stipe is 0.2-0.3 cm long. Distinguishing characteristics Mulford’s milkvetch is distinguished from the other Astragalus species with which it occurs by its small whitish flowers, its connate, sheath-forming lower stipules, and its pendulous, stipitate, three-faced pods. When to survey Surveys for Mulford’s milkvetch should be performed from May through June when the species is flowering and/or fruiting.
    [Show full text]
  • 39516 Federal Register / Vol. 50, No. 188 / Friday, September 27, 1985
    39516 Federal Register / Vol. 50, No. 188 / Friday, September 27, 1985 / Rules and Regulations reaction irreversibility or by formation polarography or square-wave (3) Irving, H., “The Stability of Metal of two or more complex species in polarography). Complexes and Their Measurement equilibrium with each other. In this last (3) Interpretation and evaluation of Polarographically," Advances ih case it is necessary to apply the method resu lts, (i) Stability constants Polarography Proceedings of the 2nd by De Ford and Hume paragraph (d) (8) determined for a new substance can be International Congress, Ed. I.S. of this section to calculate stepwise compared with literature values for Langmuir (Pergamon Press, 1960). formation constants. standard substances (see Reference (4) Perrin, D.D., Dempsey, B., B u ffe r (2) Test report, (i) The test report substances, above) and used therefore for pH and Metal Ion Controls. should list for each metal ion to evaluate the strength of its (Chapman and Hall: London, 1974). investigated the half-wave potential complexing ability. (5) “Stability Constants of Metal-ion Complexes,” Part B, Organic Ligands, Ei /2 , co-ordination number and overall (ii) The system is physically stability constant. Compiled by D.D. Perrin, IUPAC meaningful if (A) the value of the Publication on Chemical Data Series, stability constant is positive and (B) the (ii) In addition, the following should No. 22 (Pergamon Press, 1979) also be reported: standard error is less than the constant (6) Grabaric, B., Tkalcec, M., Piljac, L, (A) Type of polarisable micro­ (the t-test should be used as a criterion).
    [Show full text]
  • Table of Contents Page
    BIOLOGICAL RECONNAISSANCE SURVEY FOR WOODVILLE PUBLIC UTILITY DISTRICT’S WATER WELL REPLACEMENT PROJECT ( NEAR WOODVILLE, TULARE COUNTY, CALIFORNIA ) Prepared for Woodville Public Utility District P.O. Box 4567 16716 Avenue 168 Woodville, CA 93258 (559) 686-9649 September 2019 Prepared by HALSTEAD & ASSOCIATES Environmental / Biological Consultants 296 Burgan Avenue, Clovis, CA 93611 Office (559) 298-2334; Mobile (559) 970-2875 Fax (559) 322-0769; [email protected] Table of Contents Page 1. Summary ..............................................................................................................................1 2. Background ..........................................................................................................................2 3. Project Location ...................................................................................................................2 4. Project Description...............................................................................................................2 5. Project Site Description .......................................................................................................2 6. Regulatory Overview ...........................................................................................................3 7. Survey Methods ...................................................................................................................7 8. Wildlife Resources in the Project Area ................................................................................8
    [Show full text]