DOCSLIB.ORG

Draft Mitigated Negative Declaration Unit Y2 Wastewater Interceptor Rehabilitation Project (Ci 5328)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Draft Mitigated Negative Declaration Unit Y2 Wastewater Interceptor Rehabilitation Project (Ci 5328) DRAFT MITIGATED NEGATIVE DECLARATION UNIT Y2 WASTEWATER INTERCEPTOR REHABILITATION PROJECT (CI 5328) Lead Agency: City of Thousand Oaks 2100 Thousand Oaks Boulevard Thousand Oaks, California 91362 Contact: Mr. Nader Heydari (805) 449-2392 Prepared by: Padre Associates, Inc. 1861 Knoll Drive Ventura, CA 93003 (805) 644-2220 December 2020 Project No. 1902-2181 City of Thousand Oaks Unit Y2 Interceptor Rehabilitation (CI 5328) Table of Contents TABLE OF CONTENTS Page MITIGATED NEGATIVE DECLARATION ......................................................................... MND-1 1.0 INTRODUCTION ................................................................................................... 1 1.1 Purpose and Legal Authority ...................................................................... 1 1.2 Project Proponent and Lead Agency .......................................................... 1 1.3 Project Location ......................................................................................... 1 1.4 Project Background .................................................................................... 1 1.5 Project Purpose and Need ......................................................................... 1 1.6 Project Approvals and Permits ................................................................... 1 1.7 Mitigation Monitoring Plan .......................................................................... 2 1.8 Adoption of the Final Mitigated Negative Declaration ................................. 2 1.9 Preparers of this Initial Study ..................................................................... 2 2.0 PROJECT DESCRIPTION .................................................................................... 3 2.1 Existing Facilities ....................................................................................... 3 2.2 Project Elements ........................................................................................ 3 2.3 Construction ............................................................................................... 6 2.4 Operation and Maintenance ....................................................................... 8 3.0 ENVIRONMENTAL IMPACT ANALYSIS ............................................................... 13 3.1 Aesthetics .................................................................................................. 13 3.2 Agricultural and Forestry Resources .......................................................... 15 3.3 Air Quality .................................................................................................. 17 3.4 Biological Resources ................................................................................. 25 3.5 Cultural Resources .................................................................................... 41 3.6 Energy ....................................................................................................... 49 3.7 Geology and Soils ...................................................................................... 50 3.8 Greenhouse Gas Emissions ...................................................................... 53 3.9 Hazards and Hazardous Materials/Risk of Upset ....................................... 59 3.10 Hydrology and Water Quality ..................................................................... 61 3.11 Land Use and Planning .............................................................................. 70 3.12 Mineral Resources ..................................................................................... 71 Page i City of Thousand Oaks Unit Y2 Interceptor Rehabilitation (CI 5328) Table of Contents TABLE OF CONTENTS (CONTINUED) Page 3.13 Noise ......................................................................................................... 72 3.14 Population and Housing ............................................................................. 74 3.15 Public Services .......................................................................................... 75 3.16 Recreation ................................................................................................. 76 3.17 Transportation ............................................................................................ 78 3.18 Tribal Cultural Resources ........................................................................... 79 3.19 Utilities and Service Systems ..................................................................... 80 3.20 Wildfire ....................................................................................................... 81 4.0 CUMULATIVE IMPACTS....................................................................................... 82 4.1 Description of Cumulative Projects ............................................................ 82 4.2 Discussion of Cumulative Impacts ............................................................. 84 5.0 MANDATORY FINDINGS OF SIGNIFICANCE ...................................................... 86 6.0 DETERMINATION OF ENVIRONMENTAL DOCUMENT ...................................... 87 7.0 REFERENCES ...................................................................................................... 88 FIGURES Figure 1 Project Location Map ....................................................................................... 9 Figure 2 Rehabilitation Plan (1 of 2) ............................................................................... 10 Figure 3 Rehabilitation Plan (2 of 2) ............................................................................... 11 Figure 4 Site Photographs ............................................................................................. 12 Figure 5 Surface Water Resources of the Project Area .................................................. 67 TABLES Table 1 Ambient Air Quality Standards ......................................................................... 18 Table 2 Summary of Ambient Air Pollutant Data Collected at the Thousand Oaks and Simi Valley Monitoring Stations ............................................................................... 20 Table 3 Construction Air Pollutant Emissions ............................................................... 23 Table 4 Access Road Maintenance Air Pollutant Emissions ......................................... 23 Table 5 Definitions of Special-status Plant Species ...................................................... 27 Page ii City of Thousand Oaks Unit Y2 Interceptor Rehabilitation (CI 5328) Table of Contents TABLE OF CONTENTS (CONTINUED) Page Table 6 Special-status Plant Species Reported within Five Miles of the Unit Y2 Interceptor 27 Table 7 Definitions of Special-status Wildlife Species ................................................... 32 Table 8 Special-status Wildlife Species Reported within Five Miles of the Unit Y2 Interceptor ........................................................................................................................ 32 Table 9 Jurisdictional Delineation Data Summary ......................................................... 36 Table 10 Previously Recorded Archaeological Sites within 0.5 miles of the Unit Y2 Interceptor ........................................................................................................................ 47 Table 11 Construction-related Greenhouse Gas Emissions ........................................... 58 Table 12 Access Road Maintenance GHG Emissions .................................................... 58 Table 13 Impaired Waters of the Calleguas Creek Watershed ....................................... 62 Table 14 Beneficial Uses of Surface Waters of the Calleguas Creek Watershed ............ 64 APPENDICIES A Vascular Plant Flora Observed along the Unit Y2 Interceptor, Ventura County, California B Vertebrate Animal Species Reported from Hill Canyon and North Fork and South Fork Arroyo Conejo, Ventura County, California Page iii City of Thousand Oaks Unit Y2 Interceptor Rehabilitation (CI 5328) Mitigated Negative Declaration DRAFT MITIGATED NEGATIVE DECLARATION FOR THE UNIT Y2 WASTEWATER INTERCEPTOR REHABILITATION PROJECT PROJECT DESCRIPTION Proposed rehabilitation of the Unit Y2 Interceptor is comprised of the following primary components: Improve approximately 1,350 linear feet of the existing/historical access road between the HCTP and pipeline Station 14+50. Improve the existing meter station near the HCTP headworks (inlet). Install three new pressurized manholes (pipeline Stations 7+25, 13+48, 17+25). The existing clean-out structure at Station 13+48 would be removed in its entirety to construct the new manhole at that location. Line the two existing 18-inch diameter Techite parallel pipes with approximately 2,240 feet each of cured-in-place pipe (pipeline Station 1+40 to 23+65). Remove above-ground portions and abandon in place underground portions of four existing clean-out structures (pipeline Stations 5+30, 10+00, 15+50, 21+50). Construction of Unit Y2 improvements is anticipated to require up to eight months but is unlikely to be continuous. Work would be scheduled to avoid the wet season when high stream flows may impede crossing North Fork Arroyo Conejo and other work tasks. Work would be primarily conducted between the hours of 7 a.m. and 4:30 p.m., Monday through Friday. However, short- term nighttime and/or weekend work may be considered for bypass operations and tie-in to the existing interceptor piping/structures. Access road improvements would be
Load more

Recommended publications
  • BACKGROUND ENVIRONMENTAL REPORT Existing Conditions | January 2020
    Thousand Oaks BACKGROUND ENVIRONMENTAL REPORT Existing Conditions | January 2020 EXISTING CONDITIONS REPORT: BACKGROUND ENVIRONMENTAL Age, including mastodon, ground sloth, and saber-toothed cat CHAPTER 1: CULTURAL (City of Thousand Oaks 2011). RESOURCES Native American Era The earliest inhabitants of Southern California were transient hunters visiting the region approximately 12,000 B.C.E., who were the cultural ancestors of the Chumash. Evidence of significant and Cultural Setting continuous habitation of the Conejo Valley region began around The cultural history of the City of Thousand Oaks and the 5,500 B.C.E. Specifically, during the Millingstone (5,500 B.C.E – surrounding Conejo Valley can be divided in to three major eras: 1,500 B.C.E.) and the Intermediate (1,500 B.C.E. – 500 C.E.) Native-American, Spanish-Mexican, and Anglo-American. periods, the Conejo Valley experienced a year-round stable Remnants from these unique eras exist in the region as a diverse population of an estimated 400-600 people. During this time, range of tribal, archaeological and architectural resources. The people typically lived in largely open sites along water courses Conejo Valley served as an integral part of the larger Chumash and in caves and rock shelters; however, a number of site types territory that extended from the coast and Channel Islands to have been discovered, including permanent villages, semi- include Santa Barbara, most of Ventura, parts of San Luis Obispo, permanent seasonal stations, hunting camps and gathering Kern and Los Angeles Counties. The late 18th and early 19th localities focused on plant resources (City of Thousand Oaks 2011).
    [Show full text]
  • To Oral History
    100 E. Main St. [email protected] Ventura, CA 93001 (805) 653-0323 x 320 QUARTERLY JOURNAL SUBJECT INDEX About the Index The index to Quarterly subjects represents journals published from 1955 to 2000. Fully capitalized access terms are from Library of Congress Subject Headings. For further information, contact the Librarian. Subject to availability, some back issues of the Quarterly may be ordered by contacting the Museum Store: 805-653-0323 x 316. A AB 218 (Assembly Bill 218), 17/3:1-29, 21 ill.; 30/4:8 AB 442 (Assembly Bill 442), 17/1:2-15 Abadie, (Señor) Domingo, 1/4:3, 8n3; 17/2:ABA Abadie, William, 17/2:ABA Abbott, Perry, 8/2:23 Abella, (Fray) Ramon, 22/2:7 Ablett, Charles E., 10/3:4; 25/1:5 Absco see RAILROADS, Stations Abplanalp, Edward "Ed," 4/2:17; 23/4:49 ill. Abraham, J., 23/4:13 Abu, 10/1:21-23, 24; 26/2:21 Adams, (rented from Juan Camarillo, 1911), 14/1:48 Adams, (Dr.), 4/3:17, 19 Adams, Alpha, 4/1:12, 13 ph. Adams, Asa, 21/3:49; 21/4:2 map Adams, (Mrs.) Asa (Siren), 21/3:49 Adams Canyon, 1/3:16, 5/3:11, 18-20; 17/2:ADA Adams, Eber, 21/3:49 Adams, (Mrs.) Eber (Freelove), 21/3:49 Adams, George F., 9/4:13, 14 Adams, J. H., 4/3:9, 11 Adams, Joachim, 26/1:13 Adams, (Mrs.) Mable Langevin, 14/1:1, 4 ph., 5 Adams, Olen, 29/3:25 Adams, W. G., 22/3:24 Adams, (Mrs.) W.
    [Show full text]
  • Calleguas Creek Watershed OC Pesticides and Pcbs TMDL Technical Report
    April 25, 2005 Calleguas Creek Watershed OC Pesticides and PCBs TMDL Technical Report Submitted to Los Angeles Regional Quality Control Board Prepared by Larry Walker Associates on behalf of the Calleguas Creek Watershed Management Plan Table of Contents 1 Introduction ...........................................................................................................................................1 1.1 Regulatory Background................................................................................................................3 1.2 Calleguas Creek TMDL Stakeholder Participation Process .........................................................4 1.3 Elements of a TMDL.....................................................................................................................5 2 Problem Statement ...............................................................................................................................6 2.1 Environmental Setting ..................................................................................................................6 2.2 Water Quality Standards ............................................................................................................13 2.3 Beneficial Uses ..........................................................................................................................13 2.4 Water Quality Objectives............................................................................................................14 2.5 Antidegradation..........................................................................................................................15
    [Show full text]
  • MCB Camp Pendleton Arroyo Toad (Bufo Californicus) Monitoring Results, 2003
    MCB Camp Pendleton Arroyo Toad (Bufo californicus) Monitoring Results, 2003 Annual Report Prepared for: Wildlife Management Branch AC/S Environmental Security Marine Corps Base Camp Pendleton U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY WESTERN ECOLOGICAL RESEARCH CENTER MCB Camp Pendleton Arroyo Toad Monitoring Results, 2003 By Cheryl S. Brehme, Andrea J. Atkinson, and Robert N. Fisher U.S. GEOLOGICAL SURVEY WESTERN ECOLOGICAL RESEARCH CENTER Annual Report Prepared for: Wildlife Management Branch AC/S Environmental Security Marine Corps Base Camp Pendleton San Diego Field Station USGS Western Ecological Research Center 5745 Kearny Villa Road, Suite M San Diego, CA 92123 Sacramento, California 2004 ii U.S. DEPARTMENT OF THE INTERIOR GALE A. NORTON, SECRETARY U.S. GEOLOGICAL SURVEY Charles G. Groat, Director The use of firm, trade, or brand names in this report is for identification purposes only and does not constitute endorsement by the U.S. Geological Survey. For additional information, contact: Center Director USGS Western Ecological Research Center 3020 State University Drive East Modoc Hall, Room 3006 Sacramento, CA 95819 iii TABLE OF CONTENTS ABSTRACT............................................................................................................................. 1 INTRODUCTION................................................................................................................... 3 The Arroyo Toad..............................................................................................................
    [Show full text]
  • Biology 2 Lab Packet for Practical 4
    1 Biology 2 Lab Packet For Practical 4 2 CLASSIFICATION: Domain: Eukarya Supergroup: Unikonta Clade: Opisthokonts Kingdom: Animalia Phylum: Chordata – Chordates Subphylum: Urochordata - Tunicates Class: Amphibia – Amphibians Subphylum: Cephalochordata - Lancelets Order: Urodela - Salamanders Subphylum: Vertebrata – Vertebrates Order: Apodans - Caecilians Superclass: Agnatha Order: Anurans – Frogs/Toads Order: Myxiniformes – Hagfish Class: Testudines – Turtles Order: Petromyzontiformes – Lamprey Class: Sphenodontia – Tuataras Superclass: Gnathostomata – Jawed Vertebrates Class: Squamata – Lizards/Snakes Class: Chondrichthyes - Cartilaginous Fish Lizards Subclass: Elasmobranchii – Sharks, Skates and Rays Order: Lamniiformes – Great White Sharks Family – Agamidae – Old World Lizards Order: Carcharhiniformes – Ground Sharks Family – Anguidae – Glass Lizards Order: Orectolobiniformes – Whale Sharks Family – Chameleonidae – Chameleons Order: Rajiiformes – Skates Family – Corytophanidae – Helmet Lizards Order: Myliobatiformes - Rays Family - Crotaphytidae – Collared Lizards Subclass: Holocephali – Ratfish Family – Helodermatidae – Gila monster Order: Chimaeriformes - Chimaeras Family – Iguanidae – Iguanids Class: Sarcopterygii – Lobe-finned fish Family – Phrynosomatidae – NA Spiny Lizards Subclass: Actinistia - Coelocanths Family – Polychrotidae – Anoles Subclass: Dipnoi – Lungfish Family – Geckonidae – Geckos Class: Actinopterygii – Ray-finned Fish Family – Scincidae – Skinks Order: Acipenseriformes – Sturgeon, Paddlefish Family – Anniellidae
    [Show full text]
  • Assessment of Coastal Water Resources and Watershed Conditions at Channel Islands National Park, California
    National Park Service U.S. Department of the Interior Technical Report NPS/NRWRD/NRTR-2006/354 Water Resources Division Natural Resource Program Center Natural Resource Program Centerent of the Interior ASSESSMENT OF COASTAL WATER RESOURCES AND WATERSHED CONDITIONS AT CHANNEL ISLANDS NATIONAL PARK, CALIFORNIA Dr. Diana L. Engle The National Park Service Water Resources Division is responsible for providing water resources management policy and guidelines, planning, technical assistance, training, and operational support to units of the National Park System. Program areas include water rights, water resources planning, marine resource management, regulatory guidance and review, hydrology, water quality, watershed management, watershed studies, and aquatic ecology. Technical Reports The National Park Service disseminates the results of biological, physical, and social research through the Natural Resources Technical Report Series. Natural resources inventories and monitoring activities, scientific literature reviews, bibliographies, and proceedings of technical workshops and conferences are also disseminated through this series. Mention of trade names or commercial products does not constitute endorsement or recommendation for use by the National Park Service. Copies of this report are available from the following: National Park Service (970) 225-3500 Water Resources Division 1201 Oak Ridge Drive, Suite 250 Fort Collins, CO 80525 National Park Service (303) 969-2130 Technical Information Center Denver Service Center P.O. Box 25287 Denver, CO 80225-0287 Cover photos: Top Left: Santa Cruz, Kristen Keteles Top Right: Brown Pelican, NPS photo Bottom Left: Red Abalone, NPS photo Bottom Left: Santa Rosa, Kristen Keteles Bottom Middle: Anacapa, Kristen Keteles Assessment of Coastal Water Resources and Watershed Conditions at Channel Islands National Park, California Dr.
    [Show full text]
  • Phase I Report
    PHASE I REPORT June 2005 Calleguas Creek Watershed Integrated Regional Water Management Plan This Integrated Regional Water Management Plan (IRWMP) is comprised of two volumes: Volume I: Calleguas Creek Watershed Management Plan Phase I Report Volume II: Calleguas Creek Watershed Management Plan Addendum Volume I is provided as a separate document and Volume II is attached. Volume II is intended to bridge the gap between the Calleguas Creek Watershed Management Plan and the requirements for IRWMPs found in the Integrated Regional Water Management (IRWM) Grant Program Guidelines (Guidelines). The two volumes, together, are intended to be a functionally- equivalent IRWMP document. The Guidelines were prepared by the California Department of Water Resources (DWR) and the State Water Resources Control Board (SWRCB) in November 2004 to provide guidance on the process and criteria that DWR and SWRCB will use to evaluate grant applications under the IRWM Grant Program. The Grant program resulted from the passage of Proposition 50, the Water Security, Clean Drinking Water, Coastal and Beach Protection Act of 2002. IRWM is discussed in Chapter 8 of Proposition 50. p:\05\0587108_cmwd_irwmp\attachments\attach3_irwmp\camrosa_only_preface.doc PHASE I REPORT June 2005 Table of Contents Table of Contents........................................................................................................................... i List of Tables...............................................................................................................................
    [Show full text]
  • How California Was Won: Race, Citizenship, and the Colonial Roots of California, 1846 – 1879
    University of Pennsylvania ScholarlyCommons Publicly Accessible Penn Dissertations 2019 How California Was Won: Race, Citizenship, And The Colonial Roots Of California, 1846 – 1879 Camille Alexandrite Suárez University of Pennsylvania, [email protected] Follow this and additional works at: https://repository.upenn.edu/edissertations Part of the History Commons Recommended Citation Suárez, Camille Alexandrite, "How California Was Won: Race, Citizenship, And The Colonial Roots Of California, 1846 – 1879" (2019). Publicly Accessible Penn Dissertations. 3491. https://repository.upenn.edu/edissertations/3491 This paper is posted at ScholarlyCommons. https://repository.upenn.edu/edissertations/3491 For more information, please contact [email protected]. How California Was Won: Race, Citizenship, And The Colonial Roots Of California, 1846 – 1879 Abstract The construction of California as an American state was a colonial project premised upon Indigenous removal, state-supported land dispossession, the perpetuation of unfree labor systems and legal, race- based discrimination alongside successful Anglo-American settlement. This dissertation, entitled “How the West was Won: Race, Citizenship, and the Colonial Roots of California, 1849 - 1879” argues that the incorporation of California and its diverse peoples into the U.S. depended on processes of colonization that produced and justified an adaptable acialr hierarchy that protected white privilege and supported a racially-exclusive conception of citizenship. In the first section, I trace how the California Constitution and federal and state legislation violated the Treaty of Guadalupe Hidalgo. This legal system empowered Anglo-American migrants seeking territorial, political, and economic control of the region by allowing for the dispossession of Californio and Indigenous communities and legal discrimination against Californio, Indigenous, Black, and Chinese persons.
    [Show full text]
  • Calleguas Creek Watershed Boron, Chloride, TDS, and Sulfate TMDL
    A P R I L 2 0 0 7 C A L L E G U A S C R E E K W A T E R S H E D M A N A G E M E N T P L A N Calleguas Creek Watershed Boron, Chloride, TDS, and Sulfate TMDL Public Review Technical Report Prepared by LARRY W ALKER ASSOCIATES Submitted to LOS ANGELES REGIONAL W ATER QUALITY CONTROL BOARD AND THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Table of Contents Table of Contents ........................................................................................................................... i List of Tables ................................................................................................................................. v List of Figures.............................................................................................................................. vii List of Acronyms........................................................................................................................viii Definitions...................................................................................................................................viii Section 1. Introduction .............................................................................................................. 3 1.1. Regulatory Background .................................................................................................... 5 1.1.1. Chloride Regulatory History...................................................................................... 6 1.2. Calleguas Creek TMDL Stakeholder Participation Process ............................................
    [Show full text]
  • Calleguas Creek Watershed Hydrology Study Present Condition
    CALLEGUAS CREEK WATERSHED HYDROLOGY STUDY PRESENT CONDITION Moorpark Simi Valley Camarillo Thousand Oaks Ventura County Public Works Agency Watershed Protection District March 2003 CALLEGUAS CREEK WATERSHED HYDROLOGY STUDY PRESENT CONDITION Ventura County Public Works Agency Watershed Protection District March 2003 ACKNOWLEDGEMENTS This report represents the combined effort of a large number of agencies and individuals whose contributions are hereby gratefully acknowledged. Supervisor Judy Mikels Calleguas Municipal Water District US Army Corps Of Engineers, Los Angeles District City of Camarillo City of Moorpark City of Simi Valley City of Thousand Oaks Calleguas Creek Watershed Management Plan Participants The following members of the Ventura County Watershed Protection District staff have been instrumental in the creation of this hydrologic report: Scott Holder, Robin Jester, Hassan Kasraie, David Laak, Jayme Laber, Olga Ready, Louise Shi, Dolores Taylor, John Trone, Denny Tuan, Sergio Vargas CALLEGUAS CREEK HYDROLOGY REPORT TABLE OF CONTENTS I. INTRODUCTION/HISTORY A. Introduction 6 B. Historical Models 6 1. Modified Rational Hydrology Method Adoption 6 2. Figure 1 – Vicinity Map 7 3. NWS-Sacremento Model in Real-Time 8 4. COE HEC-1 Model Update 8 5. HSPF Calibration Model 9 II. METHODS AND TECHNIQUES A Modified Rational Hydrology Model-VCRAT Computer Model 10 C. Model Applications 11 D. Areal Reduction 11 E. User friendly tables 11 F. Figure 6 – AR Curve for Calleguas Mainstem above Conejo Creek 12 G. Figure 7 – AR Curve for Calleguas Mainstem below Conejo Creek 13 H. Figure 8 - AR Curve for Conejo Creek 14 I. Figure 9 - AR Curve for Revolon Slough 15 J. GIS and Calleguas Creek Hydrology Model 16 III.
    [Show full text]
  • Legal Authority Over the Use of Native Amphibians and Reptiles in the United States State of the Union
    STATE OF THE UNION: Legal Authority Over the Use of Native Amphibians and Reptiles in the United States STATE OF THE UNION: Legal Authority Over the Use of Native Amphibians and Reptiles in the United States Coordinating Editors Priya Nanjappa1 and Paulette M. Conrad2 Editorial Assistants Randi Logsdon3, Cara Allen3, Brian Todd4, and Betsy Bolster3 1Association of Fish & Wildlife Agencies Washington, DC 2Nevada Department of Wildlife Las Vegas, NV 3California Department of Fish and Game Sacramento, CA 4University of California-Davis Davis, CA ACKNOWLEDGEMENTS WE THANK THE FOLLOWING PARTNERS FOR FUNDING AND IN-KIND CONTRIBUTIONS RELATED TO THE DEVELOPMENT, EDITING, AND PRODUCTION OF THIS DOCUMENT: US Fish & Wildlife Service Competitive State Wildlife Grant Program funding for “Amphibian & Reptile Conservation Need” proposal, with its five primary partner states: l Missouri Department of Conservation l Nevada Department of Wildlife l California Department of Fish and Game l Georgia Department of Natural Resources l Michigan Department of Natural Resources Association of Fish & Wildlife Agencies Missouri Conservation Heritage Foundation Arizona Game and Fish Department US Fish & Wildlife Service, International Affairs, International Wildlife Trade Program DJ Case & Associates Special thanks to Victor Young for his skill and assistance in graphic design for this document. 2009 Amphibian & Reptile Regulatory Summit Planning Team: Polly Conrad (Nevada Department of Wildlife), Gene Elms (Arizona Game and Fish Department), Mike Harris (Georgia Department of Natural Resources), Captain Linda Harrison (Florida Fish and Wildlife Conservation Commission), Priya Nanjappa (Association of Fish & Wildlife Agencies), Matt Wagner (Texas Parks and Wildlife Department), and Captain John West (since retired, Florida Fish and Wildlife Conservation Commission) Nanjappa, P.
    [Show full text]
  • Rapid Extirpation of a North American Frog Coincides with an Increase in Fungal Pathogen Prevalence: Historical Analysis and Implications for Reintroduction
    Received: 8 April 2017 | Revised: 6 August 2017 | Accepted: 19 August 2017 DOI: 10.1002/ece3.3468 ORIGINAL RESEARCH Rapid extirpation of a North American frog coincides with an increase in fungal pathogen prevalence: Historical analysis and implications for reintroduction Andrea J. Adams1 | Allan P. Pessier2 | Cheryl J. Briggs1 1Department of Ecology, Evolution and Marine Biology, University of California, Santa Abstract Barbara, Santa Barbara, CA, USA As extinctions continue across the globe, conservation biologists are turning to spe- 2 Department of Veterinary Microbiology cies reintroduction programs as one optimistic tool for addressing the biodiversity cri- and Pathology, College of Veterinary Medicine, Washington State University, sis. For repatriation to become a viable strategy, fundamental prerequisites include Pullman, WA, USA determining the causes of declines and assessing whether the causes persist in the Correspondence environment. Invasive species—especially pathogens—are an increasingly significant Andrea J. Adams, Department of Ecology, factor contributing to biodiversity loss. We hypothesized that Batrachochytrium dend- Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA, robatidis (Bd), the causative agent of the deadly amphibian disease chytridiomycosis, USA. was important in the rapid (<10 years) localized extirpation of a North American frog Email: [email protected] (Rana boylii) and that Bd remains widespread among extant amphibians in the region of Funding information extirpation. We used an interdisciplinary approach, combining interviews with herpe- Division of Environmental Biology, Grant/ Award Number: DEB-1557190; Robert and tological experts, analysis of archived field notes and museum specimen collections, Patricia Switzer Foundation and field sampling of the extant amphibian assemblage to examine (1) historical rela- tive abundance of R.
    [Show full text]