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Riparian Forest Buffer - CPS 391
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by
Morgan Harris
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published
Jul 12, 2019
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last modified
Jul 17, 2023 11:19 AM
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filed under:
Eastern Hellbender NRCS Conservation Practices & Materials,
Conservation Practices,
NRCS Conservation Practices & Materials,
Resources,
Aquatics
An area predominantly trees and/or shrubs located adjacent to and up-gradient from watercourses or water bodies.
Located in
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NRCS Conservation Practices & Materials
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Conservation Practices
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Stream Habitat Improvement and Management - CPS 395
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by
Morgan Harris
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published
Jul 12, 2019
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last modified
Jul 17, 2023 11:29 AM
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filed under:
Eastern Hellbender NRCS Conservation Practices & Materials,
Conservation Practices,
NRCS Conservation Practices & Materials,
Resources,
Aquatics
Maintain, improve or restore physical, chemical and biological functions of a stream, and its associated riparian zone, necessary for meeting the life history requirements of desired aquatic species.
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NRCS Conservation Practices & Materials
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Conservation Practices
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Streambank and Shoreline Protection - CPS 580
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by
Morgan Harris
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published
Jul 12, 2019
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last modified
Jul 17, 2023 11:35 AM
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filed under:
Eastern Hellbender NRCS Conservation Practices & Materials,
Conservation Practices,
NRCS Conservation Practices & Materials,
Resources,
Aquatics
Treatment(s) used to stabilize and protect banks of streams or constructed channels, and shorelines of lakes, reservoirs, or estuaries.
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NRCS Conservation Practices & Materials
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Conservation Practices
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Watering Facility - CPS 614
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by
Morgan Harris
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published
Jul 12, 2019
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last modified
Jul 17, 2023 11:36 AM
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filed under:
Eastern Hellbender NRCS Conservation Practices & Materials,
Conservation Practices,
NRCS Conservation Practices & Materials,
Resources,
Aquatics
A watering facility is a means of providing drinking water to livestock or wildlife.
Located in
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NRCS Conservation Practices & Materials
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Conservation Practices
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Fence - CPS 382
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by
Morgan Harris
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published
Jul 12, 2019
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last modified
Jul 17, 2023 11:38 AM
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filed under:
Eastern Hellbender NRCS Conservation Practices & Materials,
Conservation Practices,
NRCS Conservation Practices & Materials,
Resources,
Aquatics
This practice facilitates the accomplishment of conservation objectives by providing a means to control movement of animals and people, including vehicles.
Located in
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NRCS Conservation Practices & Materials
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Conservation Practices
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Fence Job Sheet
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by
Morgan Harris
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published
Jul 12, 2019
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last modified
Jul 17, 2023 11:41 AM
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filed under:
Eastern Hellbender NRCS Conservation Practices & Materials,
NRCS Conservation Practices & Materials,
Job Sheets,
Resources,
Aquatics
NC Fence Job Sheet Installation Instructions
Located in
Information Materials
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NRCS Conservation Practices & Materials
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Job Sheets
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Riparian Forest Buffer
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by
Morgan Harris
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published
Jul 12, 2019
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last modified
Jul 17, 2023 11:42 AM
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filed under:
Eastern Hellbender NRCS Conservation Practices & Materials,
NRCS Conservation Practices & Materials,
Job Sheets,
Resources,
Aquatics
Buffers are applied on stable areas adjacent to permanent or intermittent streams, rivers, lakes, ponds, and wetlands that flood or pond.
Located in
Information Materials
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NRCS Conservation Practices & Materials
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Job Sheets
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The Last Dragons - Protecting Appalachia's Hellbenders - 10 minute film
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by
Freshwaters Illustrated
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published
Mar 17, 2021
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last modified
Jul 12, 2023 06:05 PM
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filed under:
Hellbenders,
Protecting Appalachia's Hellbenders,
Multimedia,
Freshwaters Illustrated,
Eastern Hellbender Multimedia,
Eastern Hellbender,
Aquatics,
The Last Dragons,
Resources
An intimate glimpse at North America's Eastern Hellbender, an ancient salamander that lives as much in myth as in reality.... and in many waters, myths are all that remain of these sentinel stream-dwellers.
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Multimedia
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Population Genetics of the Eastern Hellbender (Cryptobranchus alleganiensis alleganiensis) across Multiple Spatial Scales
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by
Shem D. Unger, Olin E. Rhodes Jr, Trent M. Sutton, Rod N. Williams
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published
Feb 10, 2023
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last modified
Jul 26, 2023 01:36 PM
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filed under:
Additional Resources,
Eastern Hellbender Additional Resources,
Research,
Peer-reviewed Science,
Aquatics,
Resources
Conservation genetics is a powerful tool to assess the population structure of species and provides a framework for informing management of freshwater ecosystems. As lotic habitats become fragmented, the need to assess gene flow for species of conservation management becomes a priority. The eastern hellbender (Cryptobranchus alleganiensis alleganiensis) is a large, fully aquatic paedamorphic salamander. Many populations are experiencing declines throughout their geographic range, yet the genetic ramifications of these declines are currently unknown. To this end, we examined levels of genetic variation and genetic structure at both range-wide and drainage (hierarchical) scales. We collected 1,203 individuals from 77 rivers throughout nine states from June 2007 to August 2011. Levels of genetic diversity were relatively high among all sampling locations. We detected significant genetic structure across populations (Fst values ranged from 0.001 between rivers within a single watershed to 0.218 between states). We identified two genetically differentiated groups at the range-wide scale: 1) the Ohio River drainage and 2) the Tennessee River drainage. An analysis of molecular variance (AMOVA) based on landscape-scale sampling of basins within the Tennessee River drainage revealed the majority of genetic variation (∼94–98%) occurs within rivers. Eastern hellbenders show a strong pattern of isolation by stream distance (IBSD) at the drainage level. Understanding levels of genetic variation and differentiation at multiple spatial and biological scales will enable natural resource managers to make more informed decisions and plan effective conservation strategies for cryptic, lotic species.
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Research
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Peer-reviewed Science
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Importance of demographic surveys and public lands for the conservation of eastern hellbenders Cryptobranchus alleganiensis alleganiensis in southeast USA
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by
Michael J. Freake, Christopher S. DePerno
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published
Feb 10, 2023
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last modified
Jul 26, 2023 01:37 PM
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filed under:
Additional Resources,
Eastern Hellbender Additional Resources,
Research,
Peer-reviewed Science,
Aquatics,
Resources
Comparisons of recent and historic population demographic studies of eastern hellbenders Cryptobranchus alleganiensis alleganiensis have identified significant population declines and extirpations associated with habitat degradation, poor water quality and disease, leading to nomination as a candidate for listing under the Endangered Species Act. However, populations in the southern Appalachian region of the range have received less attention despite relatively high levels of watershed protection due to the establishment of federally protected National Forest and National Park public lands. These watersheds likely represent some of the best remaining available habitat, yet the lack of published studies make assessment of population stability and viability very difficult. Our objectives were to (1) conduct a capture-mark-recapture (CMR) demographic study and a point transect survey on the Hiwassee River in Tennessee which is designated a National Scenic River, and is largely contained within the Cherokee National Forest, (2) quantify the size structure of the population, (3) compare abundance, survival and recruitment with historic and contemporary hellbender populations across the range, (4) assess the importance of this population and the significance of National Forest and National Park lands in the context of hellbender population conservation in the southeastern United States. We detected all age classes present, with larval hellbenders comprising 21.5% of captures. Using a combination of static life table and CMR methods, we determined that survival rates during the first year were low (~10%), but were high (68–94%) for taggable sized hellbenders. Density of hellbenders at the study site was very high (84 taggable sized hellbenders per 100m of river) compared to recent demographic studies conducted in other regions of the range. We detected hellbenders over ~28 km of river, with a mean density of 23 taggable sized hellbenders per 100m of river, and a total population estimate of 6440 taggable hellbenders. National Forest and National Park lands are likely to continue to play a particularly important role in providing suitable habitat for hellbenders in the southern Appalachians. In fact, only six of 21 known hellbender locations in Tennessee appear to show consistent larval recruitment, all of which are located within or adjacent to National Forest or National Park land.
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Peer-reviewed Science