FWS Saltmarsh Restoration Priorities for the Saltmarsh Sparrow - Atlantic Coast Joint Venture (ACJV) [U.S. Fish and Wildlife Service] Full Details

Full Details

Title:

FWS Saltmarsh Restoration Priorities for the Saltmarsh Sparrow - Atlantic Coast Joint Venture (ACJV) [U.S. Fish and Wildlife Service]

Description:

UPDATED 2024 - This data is intended to provide those interested in salt marsh and Saltmarsh Sparrow conservation with information that will help with conservation implementation. It identifies areas containing salt marsh that are good candidates for restoration, enhancement, and/or conservation to provide persistent high-quality Saltmarsh Sparrow breeding habitat by 2030 in addition to long-term salt marsh resilience. High-quality habitat for the Saltmarsh Sparrow includes high marsh patches with the lowest flooding frequency that provide a window over 23 days between significant flooding events, and are characterized by Spartina patens, Short-form S. alterniflora, Distichlis spicata, and Juncus gerardii, including a well-developed thatch layer of previous years' vegetation. Marshes are characterized as "Priority, "Reference", and "Honorable Mention". "Priority" marshes have been prioritized for ongoing restoration planning and action to support the Saltmarsh Sparrow. "Honorable mention" marshes were identified by the partner group as important to keep in mind and further assess for future work, but of lower priority than "Priority" marshes. "Reference" marshes are less degraded and can act as reference marshes for restoration efforts in the state. Long-term preservation of these areas and the open space around them to facilitate long-term marsh migration is important, but no immediate restoration action is suggested for them. Restoration Technique DefinitionsThe following terms are used repeatedly throughout this document to identify opportunityfor different techniques at identified marshes, including in the "attributes" section. Thisinformation is meant to identify opportunity and potential for these restorationtechniques at each site but is not meant to be prescriptive. A formal site assessment anddesign is always necessary to identify specific next steps and restoration strategies within eachmarsh parcel.Sediment placement - elevation enhancementIntentional placement of material (including beneficial use of dredged sediment) on the marsh platform to raise the marsh platform. Includes both thin-layer placement and thick-layer placement.Repair hydrology - runnelling / channel creationModification of marsh platform using shallow channel creation to remove or prevent ground water saturation at the marsh surface that is causing marsh vegetation death and/or subsidence. Excavated peat is often reused to enhance microtopography.Repair hydrology - tidal restrictionRemoval or modification of features altering tidal flow such as road crossings, culverts, bridges, etc.Repair hydrology - ditch plugsAdjustment of ditch plugging on marsh platform to improve hydrology.Repair hydrology - ditchesAdjustment of human-made ditches on the marsh platform to improve hydrology.Repair hydrology - berm, embankment, or leveeRemoval or alteration of berms, stonewalls or embankments to restore hydrology of marsh platform and/or facilitate marsh migration.Land acquisition / protection - marsh migrationProtect (in fee or easement) land to allow for eventual marsh migration.Land acquisition / protection - existing marshProtect (in fee or easement) land with existing marsh.Facilitated marsh migrationActive management to promote/accelerate marsh migration through modification of the environment.Non-native invasive plant species management (Phragmites australis, etc.)Removal or management of invasive plants.Living shoreline developmentDevelopment of nature-based features (e.g., vegetation, oyster reefs) to promote shoreline stabilization.Wildlife herbivory reductionRemoval or management of wildlife to reduce/prevent overgrazing including both non-native (e.g., hogs, horses, Sesarma crabs) and native species (e.g., deer, Uca [fiddler] crabs, geese).Stormwater managementAddress stormwater to reduce/manage excessive inputs of freshwater, nutrients, pollution, and/or sediment.Additional ecological assessment neededAdditional monitoring and site assessment to determine specific next steps or assess existing restoration efforts at a site.

Creator:

Department of the Interior

Provider:

U.S. Fish and Wildlife Service Open Data

Resource Class:

Web services

Temporal Coverage:

Last modified 2024-09-03

Date Issued:

2022-02-11

Place:

United States

Rights:

Please use in conjunction with the State Saltmarsh Sparrow Plans - acjv.orgThe United States Fish and Wildlife Service (Service) shall not be held liable for improper or incorrect use of the data described and/or contained herein. While the Service makes every reasonable effort to ensure the accuracy and completeness of data provided for distribution, it may not have the necessary accuracy or completeness required for every possible intended use. The Service recommends that data users consult the associated metadata record to understand the quality and possible limitations of the data. The Service creates metadata records in accordance with the standards endorsed by the Federal Geographic Data Committee.As a result of the above considerations, the Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of the data. It is the responsibility of the data user to use the data in a manner consistent with the limitations of geospatial data in general and these data in particular. Although these data have been processed successfully on a computer system at the Service, no warranty, expressed or implied, is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This applies to the use of the data both alone and in aggregate with other data and information.

Access Rights:

Public

Format:

File

Language:

English

Date Added:

2024-09-10