Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Pennsylvania Technical Assistance

  • Duane DiefenbachReviewed a species status assessment (SSA) for the Florida Key deer (December 2017 - December 2017)
  • Tyler WagnerProvided expert opinion on Trout Unlimited's conservation portfolio analysis for the eastern range of the brook trout. This occurred via a webinar to discuss results of their assessment. (April 2016 - April 2016)
  • Tyler WagnerProvide technical assistance/expert opinion to Ontario Ministry of Natural Resources and Forestry, through Cambium Inc., to help guide efforts to manage and monitor both brook trout and their habitat across southern Ontario. (February 2016 - February 2016)
  • Duane DiefenbachProvided population estimates for black bears in New Jersey for the NJ Division of Wildlife using 2003-2-14 data. (January 2015 - February 2015)
  • Tyler WagnerMember of the Chesapeake Bay Program’s Brook Trout Action Team to develop a management strategy for brook trout in the Chesapeake Bay (October 2014 - January 2015)
  • Tyler WagnerMember of the Chesapeake Bay brook trout technical team to provide expertise on statistical model development and application. (April 2014 - December 2014)
  • Tyler WagnerI served on a technical review panel to review and comment on stock assessment and simulation models of management performance and to share criticisms with the Lake Erie Percid Management Advisory Group (LEPMAG). The LEPMAG is a partnership between the Lake Erie Committee and the Lake Erie fisheries stakeholders. LEPMAG works to develop fisheries management plans for walleye and yellow perch. (February 2012 - February 2012)
  • Tyler WagnerFacilitated Structured Decision Making workshop for Pennsylvania Bureau of Forestry to develop a decision model for managing deer with respect to forest vegetation conditions. (February 2011 - February 2011)
  • Duane DiefenbachFacilitated Structured Decision Making workshop for Pennsylvania Bureau of Forestry to develop a decision model for managing deer with respect to forest vegetation conditions. (February 2010 - February 2010)
  • Duane DiefenbachAssist DCNR with developing a process for setting deer harvest allocations on state forest lands (October 2009 - Present)
  • Robert CarlineParticipated in a Conservation Action Planning Workshop (September 2006 - September 2006)
  • Robert CarlineReviewed brook trout conservation plan for the PA Fish and Boat Commission (June 2006 - June 2006)
  • Robert CarlineProvided analyses of angler survey data to state biologists (May 2006 - May 2006)
  • Robert CarlineAssisted local sewer authority and state EPA personnel with design of fish sampling protocol. (May 2006 - May 2006)
  • Robert CarlineAssisted environmental monitoring volunteers with selection of stream sampling sites (May 2006 - May 2006)
  • Robert CarlineAssisted PA Fish & Boat Comm. staff with study design for angler survey (April 2006 - April 2006)
  • Robert CarlineFacilitated presentation by economists on value of recreational fishing for technical and nontechnical audience (January 2006 - January 2006)
  • Robert CarlineParticipated in a working group to design two studies for PA Fish & Boat Comm. (January 2006 - January 2006)
  • Duane DiefenbachServed on a panel to review Wisconsin's deer population estimation methods (September 2005 - October 2005)
  • Robert CarlineParticipating in a working group that reviewed guidelines and policies for the stocked trout program. (September 2005 - September 2005)
  • Robert CarlineOrganized a panel of freshwater mussel experts who reviewed existing protocols for sampling mussels in large rivers and developed revised protocols. (June 2005 - July 2005)
  • Robert CarlineParticipated in a workshop that reviewed monitoring plans for the National Park Service (May 2005 - May 2005)
  • Robert CarlineProvided printed materials and advice to a Cumberland County fishing club on techniques to treat an acidified stream. (April 2005 - April 2005)
  • Duane DiefenbachMet with bear biologists from Maryland, New Jersey, and Pennsylvania to discuss survival and population estimation as well as aversive conditioning techniques for nuisance bears and possible multi-state research (March 2005 - March 2005)
  • Robert CarlineAssisted PA Fish and Boat Personnel with design of a state-wide angler survey on stocked trout streams (February 2005 - February 2005)
  • Duane DiefenbachAssisted USFWS staff at Rappahannock NWR to conduct a pilot study to develop techniques for monitoring wintering grassland songbirds. (January 2005 - January 2005)
  • Robert CarlineParticipated in a Trout Working Group session that reviewed regulation proposals for the PA Fish and Boat Commission (January 2005 - January 2005)
  • Duane DiefenbachServed on a science advisory committee meeting for the Eastern Rivers and Mountains Network (December 2004 - December 2004)
  • Duane DiefenbachParticipated in a 2-day workshop sponsored by the PA Game Commission to provide input on avian conservation in Pennsylvania. (November 2004 - November 2004)
  • Duane DiefenbachParticipated in a workshop to develop a risk assessment procedure for chronic wasting disease in cervids for use by state wildlife agencies (April 2004 - April 2004)
  • Duane DiefenbachSurveyed heron rookery on Susquehanna River (April 2004 - April 2004)
  • Robert CarlineParticipated on a panel to review selection criteria for state wildlife grants. (March 2004 - March 2004)
  • Duane DiefenbachAssisted state fisheries biologists in developing a sampling design to assess fisher use of wild trout streams in Pennsylvania (March 2004 - March 2004)
  • Robert CarlineAssisted state biologist with designing a sampling program for detection of PCBs at fish hatcheries. (February 2004 - February 2004)
  • Robert CarlineAssisted state biologists with designing an angler survey for wild trout streams (January 2004 - January 2004)
  • Duane DiefenbachProvided evalation of efficacy of sampling hunter-killed deer to detect presence of chronic wasting disease in Pennsylvania (July 2003 - July 2003)
  • Erin SnyderAttended a meeting at the Huntsdale Fish Hatchery to assist the Pennsylvania Fish and Boat Commission with a plan to identify the source(s) of PCBs in hatchery fish. (July 2003 - July 2003)
  • Robert CarlineAssisted in a horseshoe crab survey. (June 2003 - June 2003)
  • Duane DiefenbachSurvey heron rookery on Susquehanna River (April 2003 - April 2003)
  • Robert CarlineConducted groundwater sampling on Big Spring Creek. (February 2003 - February 2003)
  • Duane DiefenbachProvided technical advice to New Jersey Division of Fish and Wildlife regarding methods of estimating abundance of black bears (February 2003 - February 2003)
  • Erin SnyderAssisted Pennsylvania Fish and Boat Commission with determining the best methods to assess PCB concentrations in water at the state fish hatchery in Huntsdale, PA. (February 2003 - February 2003)
  • Erin SnyderParticipated in a meeting of the Product and Process Review Committee, Pennsylvania Dirt and Gravel Roads Program. Purpose was to provide toxicological expertise. (February 2003 - February 2003)
  • Robert CarlineHelped Trout Unlimited chapter set up an environmental fellowship for a graduate student and screened applicants. (December 2002 - December 2002)
  • Duane DiefenbachServed on a interdisciplinary, multi-agency team to develop guidelines for development and conduct of scientifically sound surveillance programs for detecting Chronic Wasting Disease in free-ranging cervids, U.S. Geological Survey, National Wildlife Health Center, Madison, Wisconsin, (December 2002 - December 2002)
  • Robert CarlineAdvised PA Fish & Boat Commission on a groundwater sampling protocol at Huntsdale Hatchery. (November 2002 - November 2002)
  • Robert CarlineConducted a redd survey on Big Spring Creek for the PA Fish & Boat Commission. (November 2002 - November 2002)
  • Robert CarlineProvided recommendations on designing a trout spawning survey to Trout Unlimited Watershed Coordinator, Amy Gottesfeld. (September 2002 - September 2002)
  • Erin SnyderReviewed an application submitted to the Product and Process Review Committee for approval into the Pennsylvania Dirt & Gravel Roads Program. (August 2002 - August 2002)
  • Duane DiefenbachAssist Deer Management Section of the Pennsylvania Game Commission with developing management programs and activities, and developing research projects. (July 2002 - July 2002)
  • Duane DiefenbachReviewed the Pennsylvania Game Commission's draft Deer Management Plan and provided comments and recommendations (July 2002 - July 2002)
  • Robert CarlineAssisted U.S. Fish and Wildlife Service with hooking mortality study. (May 2002 - May 2002)
  • Erin SnyderAttended a meeting of the Product and Process Review Comittee, Pennsylvania Dirt & Gravel Roads Program. Provided input on testing methods to evaluate the environmental safety of dust pallatives and evaluated applications for two new products (January 2002 - January 2002)
  • Robert CarlineSite visit with Pennsylvania state personnel to discuss an environmental sampling program at a hatchery (December 2001 - December 2001)

Current Staff

Federal Staff: 3

Masters Students: 4

Phd Students: 3

Post Docs: 1

University Staff: 3

5 Year Summary

Students graduated: 20

Scientific Publications: 86

Presentations: 112


Contact Us

Pennsylvania Cooperative Fish and Wildlife Research Unit University Park, PA 16802 Phone: (814) 865 - 4511 Fax: (814) 863 - 4710

Pennsylvania Cooperative Fish and Wildlife Research Unit Cooperators

  1. Pennsylvania Fish and Boat Commission
  2. Pennsylvania Game Commission
  3. Pennsylvania State University
  4. U.S. Fish and Wildlife Service
  5. U.S. Geological Survey
  6. Wildlife Management Institute