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References & Resources

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2017   Lichvar and Goulet Examining Wetland Frequency Discrepancies Produced by Data Collected
at Wetland Boundaries and across the Landscape.
    2017b. Lichvar R.W. and J.J. Goulet. Examining Wetland Frequency Discrepancies Produced by Data Collected at Wetland Boundaries and across the Landscape. ERDC/CRREL TR-17-11. Hanover, NH: US Army Engineer Research and Development Center.
 
2017   Lichvar and Goulet Testing Methods for Challenging the National Wetland Plant List,
using Tsuga canadensis (L.) Carr. as a case study.
    2017a. Lichvar R.W. and J.J. Goulet. Testing Methods for Challenging the National Wetland Plant List, using Tsuga canadensis (L.) Carr. as a case study. ERDC/CRREL TR-17-9. Hanover, NH: US Army Engineer Research and Development Center.
 
2016   Gage et al. Developing a field-tested wetland indicator rating for blue spruce (Picea pungens) in the western US.
    Gage E.A. D.J. Cooper B.L. Bultema C.E. McKernan R.W. Lichvar. Developing a field-tested wetland indicator rating for blue spruce (Picea pungens) in the western U.S. Wetlands 36(1): 111-120.
 
2015   Lichvar et al. An Overview of Research Supporting Wetland and Ordinary High Water Mark Delineation 2015.
    Lichvar RW JJ Gillrich MK Mersel CE McKernan and BL Bultema. An Overview of Research Supporting Wetland and Ordinary High Water Mark Delineation. Wetland Science and Practice 32(4):18-21.
 
2014   Gillrich and Lichvar Use of LiDAR to assist in delineating waters of the United States including wetlands 2014.
    Gillrich J.J. and R.W. Lichvar. Use of LiDAR to assist in delineating waters of the United States including wetlands. ERDC/CRREL TN-03-14. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2014   Lichvar and Gillrich Field testing new plot designs and methods for determining hydrophytic vegetation
during wetland delineations in the United States 2014a.
    Lichvar R.W. and J.J. Gillrich. Field testing new plot designs and methods for determining hydrophytic vegetation
during wetland delineations in the United States. ERDC/CRREL TN-14-1. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2014   Lichvar and Gillrich Examining discrepancies among three methods used to make hydrophytic vegetation
determinations for wetland delineation purposes 2014b.
    Lichvar R.W. and J.J. Gillrich. Examining discrepancies among three methods used to make hydrophytic vegetation determinations for wetland delineation purposes. ERDC/CRREL TR-14-2. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2012   Lichvar et al. Testing Wetland Delineation Indicators in New England Boulder Fields 2012.
    Lichvar R.W. K.E. Curtis J.J. Gillrich and L.E. Dixon. Testing Wetland Delineation Indicators in New England Boulder Fields. ERDC/CRREL TR-12-4. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH
 
2012   Lichvar et al. National Wetland Plant List Indicator Rating Definitions 2012.
    Lichvar R.W. N.C. Melvin M.L. Butterwick and W.N. Kirchner. National Wetland Plant List Indicator Rating Definitions. ERDC/CRREL TR-12-1. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH
 
2012   Tiner Defining Hydrophytes for Wetland Identification and Delineation 2012.
    Tiner R. Defining Hydrophytes for Wetland Identification and Delineation. ERDC/CRREL CR-12-1. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH
 
2011   Gillrich et al. The effect of a low-cover stratum-woody vines-on vegetation determinations
made during wetland delineations 2011.
    Gillrich J.J. B.P. Allen and R.W. Lichvar. The effect of a low-cover stratum-woody vines-on vegetation determinations made during wetland delineations. Wetlands 31:865-873.
 
2011   Lichvar and Dixon Flora and Field Guide References supporting all US Army Corps of Engineers
Wetland Regional Supplements 2011.
    Lichvar R. and L. Dixon. Flora and Field Guide References supporting all U.S. Army Corps of Engineers Wetland Regional Supplements. ERDC/CRREL SR-11-1. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2011   Lichvar et al. Discrepancies in hydrophytic determinations produced by three vegetation formulas
used for wetland delineations 2011.
    Lichvar R.W. J.J. Gillrich and W.R. Ochs. Discrepancies in hydrophytic determinations produced by three vegetation formulas used for wetland delineations. Wetlands 31:603-611.
 
2011   Lichvar and Fertig Epiphytes and the National Wetland Plant List Phytoneuron2011.
    Lichvar R. and W. Fertig. Epiphytes and the National Wetland Plant List. Phytoneuron 2011-17:1-31.
 
2011   Lichvar and Gillrich Final protocol for assessing wetland indicator status ratings during
the National Wetland Plant List update 2011.
    Lichvar R.W. and J.J. Gillrich. Final protocol for assessing wetland indicator status ratings during the National Wetland Plant List update. ERDC/CRREL TR-11-1. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2011   Trott Status of the National Wetland Plant List 2011.
    Trott K. Status of the National Wetland Plant List. National Wetland Newsletter. January-February:17-19.
 
2010   Gage and Cooper Vegetation Sampling for Wetland Delineations 2010.
    Gage E. and D. Cooper. Vegetation Sampling for Wetland Delineations. ERDC/CRREL CR-10-2. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2010   Gillrich and Bowman Use of bryophytes as indicators of hydric soils and wetland hydrology
during wetland delineations in the United States 2010.
    Gillrich J.J. and K.C. Bowman. Use of bryophytes as indicators of hydric soils and wetland hydrology during wetland delineations in the United States. ERDC/CRREL TR-10-09.U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2010   Gillrich and Lichvar Sphagnum as an indicator of wetland hydrology in the Atlantic and Gulf Coastal Plain region 2010.
    Gillrich J.J. and R.W. Lichvar. Sphagnum as an indicator of wetland hydrology in the Atlantic and Gulf Coastal Plain region. ERDC/CRREL TN-10-2. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2010   Malone and Williams Growing Season Definition and Use in Wetland Delineations 2010.
    Malone K. and H. Williams. Growing Season Definition and Use in Wetland Delineations. ERDC/CRREL CR-10-3. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2009   Lichvar et al. Selecting and testing cryptogam species for use in wetland delineation in Alaska 2009.
    Lichvar R.W. G.A. Laursen R.D. Seppelt and W.R. Ochs. Selecting and testing cryptogam species for use in wetland delineation in Alaska. Arctic 62:119-225.
 
2009   Lichvar and Kartesz Nomenclature and the National Wetland Plant List 2009.
    Lichvar R. and J. Kartesz. Nomenclature and the National Wetland Plant List. ERDC/CRREL TN-09-01. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2008   Lichvar and Minkin Concepts and procedures for updating the National Wetland Plant List 2008.
    Lichvar R. and P. Minkin. Concepts and procedures for updating the National Wetland Plant List. ERDC/CRREL TN-08-03. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2008   Lichvar et al. Evaluation of surface features for delineating the ordinary high water mark
on playas of the arid western United States 2008.
    Lichvar R. W. Ochs and S. Gains. Evaluation of surface features for delineating the ordinary high water mark on playas of the arid western United States. Wetlands 28:68-80.
 
2008   Seppelt et al. A Guide to Alaskan Black Spruce Wetland Bryophytes: Species Specific to Delineation
for Interior and South Central Regions 2008.
    Seppelt R.D. G.A. Laursen and R.W.. Lichvar. A Guide to Alaskan Black Spruce Wetland Bryophytes: Species Specific to Delineation for Interior and South Central Regions. ERDC/CRREL TN-08-02. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2007   Lichvar and Dixon Wetland Plants of Specialized Arid Habitats in the Arid West 2007.
    Lichvar R. and L. Dixon. Wetland Plants of Specialized Arid Habitats in the Arid West. ERDC/CRREL TR-07-8. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH
 
2006   Lichvar et al. Surficial features associated with ponded water on playas of the arid southwestern United States:
Indicators for delineating under the Clean Water Act 2006a.
    Lichvar R. W. Brostoff and S. Sprecher. Surficial features associated with ponded water on playas of the arid southwestern United States: Indicators for delineating under the Clean Water Act. Wetlands 26: 385-399.
 
2006   Lichvar et al. Delineating and evaluating vegetation conditions of vernal pools using spaceborne
and airborne remote sensing techniques Beale Air Force Base CA 2006b.
    Lichvar R.W. D.C. Finnegan S. Newman and W. Ochs. Delineating and evaluating vegetation conditions of vernal pools using spaceborne and airborne remote sensing techniques Beale Air Force Base CA. ERDC/CRREL TN-06-3. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH
 
2005   Lichvar Common Wetland Delineation Sedges of the Northeast 2005.
    Lichvar R. Common Wetland Delineation Sedges of the Northeast. ERDC/CRREL TR-05-4. U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH
 
2004   Lichvar et al. Ponding duration ponding frequency and field indicators: A case study
on three California USA Playas Wetlands 2004.
    Lichvar R. G. Gustina and R. Bolus. Ponding duration ponding frequency and field indicators: A case study on three California USA Playas. Wetlands 24:406-413.
 
2002   Lichvar et al. Duration and Frequency of Ponded Water on Arid Southwestern Playas.
    2002. W. R. Lichvar G. Gustina R. and Bolus. Duration and Frequency of Ponded Water on Arid Southwestern Playas. ERDC-TN-WRAP02-02 U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
2001   Brostoff et al. Delineating playas in the arid southwest: A literature review 2001.
    Brostoff W. R. Lichvar and S. Sprecher. Delineating playas in the arid southwest: A literature review. ERDC/CRREL TR-99-30.U.S. Army Engineer Research and Development Center Cold Regions Research and Engineering Laboratory Hanover NH.
 
1998   Lichvar et al. Distribution of winter annual vegetation across Environmental gradients
within a Mojave desert playa 1998.
    Lichvar R. W. Spencer and J. Campbell. Distribution of winter annual vegetation across Environmental gradients within a Mojave desert playa. Madrono 45:231-238.
 
1997   Wakeley and Lichvar Disagreements between plot-based prevalence indices and dominance ratios
in evaluations of wetland vegetation 1997.
    Wakeley J.S. and R.W. Lichvar. Disagreements between plot-based prevalence indices and dominance ratios in evaluations of wetland vegetation. Wetlands 17:301-309.
 
1996   Wakeley et al. Relationships among wetland indicators in the Hawaiian rain forest 1996.
    Wakeley J. S. S.W. Sprecher and R. W. Lichvar. Relationships among wetland indicators in the Hawaiian rain forest. Wetlands 16:173-184.
 
2014   2014 NWPL Rating Changes
2014   Algorithms Used to Assign Wetland Ratings
2013   2013 NWPL Rating Changes
2016   Publication of the 2016 National Wetland Plant List
2015   2016 NWPL Update, Initial Federal Register Notice
2012   National Wetland Plant List-Questions and Answers, May 2012
2012   National Wetland Plant List Facts
2012   Updated 2012 National Wetland Plant List is Available
2012   Publication of the 2012 National Wetland Plant List
2011   2012 NWPL Update, Initial Federal Register Notice
2012   Environmental Assessment and Finding of No Significant Impact for the Finalization of the NWPL
2012   Agreement on the use of the NWPL by the USACE, the USEPA, the USFWS and the USDA-NRCS
2011   External Botanists Consulted on Wetland Ratings
2010   External Peer Review Report for the National Wetland Plant List Update
2012   Draft Procedures for Challenging the Rating of a Plant Species on the NWPL
2016   Email List for the National and Regional Panels of the NWPL
2014   2014 NWPL Website Usage
2013   2013 NWPL Website Usage