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The University of Massachusetts Designing Sustainable Landscapes (DSL) project (http://www.umass.edu/landeco/research/dsl/dsl.html) is evaluating the capability of the landscape in the North Atlantic-Landscape Conservation Cooperative region to sustain wildlife populations under alternative climate change and urban growth scenarios. The project has developed Landscape Capability models (LC) for representative species, integrating climate niche models, habitat capability models, and prevalence models to assess the sustainability of the representative species in the 13 northeastern states under future landscape conditions. Modeled species were selected to be representative of habitat needs and ecosystem functions...
With the onset and spread of White-nose Syndrome (WNS) in the eastern United States, several formerly common bat species are now threatened with widespread regional extirpation. For example, the northern long-eared bat has shown precipitous declines and reproduction in surviving bats appears curtailed suggesting functional extirpation in some areas (Francl et al. 2012). This species has been proposed for Federal listing as endangered with the final determination scheduled for April 2015 (Federal Register § 78:61045-61080). Primarily, the species is associated with deciduous forests from New England through the mid-South and Midwest. In addition, to species facing recent declines, WNS has reduced populations of species...
Aquatic ecosystems are among the most imperiled systems on the planet (e.g., Vorosmarty et al. 2010), and freshwater mussels represent a particularly threatened taxonomic group that exemplifies the challenges of assessing numerous rare, cryptic taxa. North America contains the greatest diversity of freshwater mussels globally, but nearly two-thirds of 300 currently recognized species are considered imperiled and 29 are likely extinct (Haag and Williams 2014). While national-level efforts have compiled portfolios of research and management actions to support freshwater mussel conservation (FMCS 2016; Ferreira-Rodriguez et al. 2019), managers urgently need robust frameworks for deciding how to allocate funding and...
USFWS Region 5 Refuges manage approximately 24,000 hectares of coastal wetlands, ecosystems that are undergoing drastic change under accelerating sea-level rise and changing climatic forcing. In response to signs of marsh destabilization, such as widening channels, water logged platforms, accelerating erosion, and internal disintegration, Refuges have invested > $100 million in restoration projects to enhance resiliency. However, more data is needed on the long-term viability of salt marsh units in order to direct limited resources to sites that are likely to persist with sea level rise. Fifteen coastal refuges or refuge complexes in Region 5 participate in Salt Marsh Integrity (SMI) monitoring, to assess ecological...
The Penobscot River in Maine offers an ideal opportunity for understanding estuarine use of migratory fish species in a heavily-modified river system. The Penobscot River historically supported strong runs of diadromous fishes including American shad and American eel (Everhart and Cutting 1968). Dams were constructed across the main-stem of the river in the 1820’s, impeding fish migration. By the 1950’s, dams existed across the main-stem at locations from Mattaceunk at river kilometer (rkm) 158 downstream to Bangor (rkm 42). The Bangor Waterworks Dam was dismantled in the mid-1990’s leaving the Veazie Dam (rkm 48) as the most downstream dam across the main-stem until recent years (Opperman et al. 2011). Currently,...
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Assess threats and management of at-risk and listed shorebirds at Cape Hatteras National Seashore, North Carolina. This project produced four publications.
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This SSP project resulted in a dissertation: Lethal and sub-lethal physiological effects of behavioral responses of endangered freshwater mussels to reductions in streamflow. Little is known about the behavioral responses and physiological effects of freshwater mussels to reductions in streamflow and their ecological significance, but movement behavior of animals is often an important adaptation for responding to changing environmental conditions. Mussels are primarily thought of as sessile organisms typically exhibiting little to no movement during their life span. To better understand this aspect of mussel ecology, flume, mesocosm, and in-situ field studies were conducted to determine behavioral responses to...
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A behavioral comparison of wild and hatchery-reared shortnose sturgeon in the Savannah River, Georgia and South Carolina. There are currently no reports or publications available for this project.
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The goal of this QR project was to identify how mussels responded to reductions in stream discharge. The primary objective was to identify the movement strategy used in response to diminishing water levels for each species. Additionally, determine if these movement strategies are consistent within genera or closely related species.
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The striped newt (Notophthalmus perstriatus) is a small salamander that occurs in xeric habitats (e.g. scrub, sandhill, and dry flatwoods) of the lower coastal plain and northern peninsular Florida. Like most North American amphibians, the striped newt has a biphasic life cycle (i.e., aquatic egg and larval stages, as well as terrestrial juvenile/eft, and adult stages, and requires wetlands for reproduction. Striped newts, and a few other salamanders, are capable of adding an alternative life history pathway called paedogenesis; i.e.,larvae develop gonads and are able to reproduce without leaving the water. Paedomorphs can still transform into terrestrial forms at later time. Paedomorphosis affords benefits...
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This SSP project resulted in one publication. Carbon storage was compared between impounded and naturally tidal freshwater marshes along the Lower Waccamaw River in South Carolina, USA. Soil cores were collected in (1) naturally tidal, (2) moist soil (impounded, seasonally drained since ~1970), and (3) deeply flooded "treatments" (impounded, flooded to ~90 cm since ~2002). Cores were analyzed for % organic carbon, % total carbon, bulk density, and 210Pb and 137Cs for dating purposes. Carbon sequestration rates ranged from 25 to 200 g C m-2 yr-1 (moist soil), 80-435 g C m-2 yr-1 (naturally tidal), and 100-250 g C m-2 yr-1 (deeply flooded). The moist soil and naturally tidal treatments were compared over a period...
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This report serves as metadata and a user guide for five out of six hydrologic and landscape databases developed by the U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service, to describe data-collection, data-reduction, and data-analysis methods used to construct the databases and provides statistical and graphical descriptions of the databases. Six hydrologic and landscape databases were developed: (1) the Cache River and White River National Wildlife Refuges (NWRs) and contributing watersheds in Arkansas, Missouri, and Oklahoma, (2) the Cahaba River NWR and contributing watersheds in Alabama, (3) the Caloosahatchee and J.N. “Ding” Darling NWRs and contributing watersheds in Florida, (4)...
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The objective of this SSP project is to Conduct an inventory of diamondback terrapins on Harris Neck, Blackbeard Island, Wassaw Island, and Wolf Island National Wildlife Refuges. Specific Objectives are to: Compile all existing records of diamondback terrapins from the refuges and surrounding area. Conduct systematic surveys using boat-based head counts on each refuge. Generate a map of terrapin relative densities and associated GIS files with all appropriate data. Cooperator Report Abstract – The diamond-backed terrapin (Malaclemys terrapin) is a small estuarine turtle distributed along the Atlantic and Gulf Coasts of the USA. Terrapin populations are declining throughout their range and one of the main causes...
map background search result map search result map The First Step in Defining Sustainable Aquascapes: Spatially-explicit Quantification of Water Quantity, Timing and Distribution on Southeast Region National Wildlife Refuges Carbon sequestration rates in managed and tidal freshwater marshes in the Waccamaw National Wildlife Refuge, South Carolina Risk Analysis for Diamondback Terrapins on Wassaw, Blackbeard, Wolf, and Harris Neck National Wildlife Refuges A behavioral comparison of wild and hatchery-reared Shortnose Sturgeon in the Savannah River, Georgia and South Carolina Conservation of Beach Nesting Shorebirds and Colonial Waterbirds Response of endangered mussels to decreased flows Science-based needs of 2 broad-partnership-based conservation initiatives in the Lower Mississippi Valley Predicting the effects on endangered mussels from incremental decreases in minimum flows A decision support tool for repatriation of aquatic fauna: A case study involving the Striped Newt (Notophthalmus perstriatus) at St. Marks National Wildlife Refuge, Florida A decision support tool for repatriation of aquatic fauna: A case study involving the Striped Newt (Notophthalmus perstriatus) at St. Marks National Wildlife Refuge, Florida Risk Analysis for Diamondback Terrapins on Wassaw, Blackbeard, Wolf, and Harris Neck National Wildlife Refuges Conservation of Beach Nesting Shorebirds and Colonial Waterbirds A behavioral comparison of wild and hatchery-reared Shortnose Sturgeon in the Savannah River, Georgia and South Carolina Response of endangered mussels to decreased flows Predicting the effects on endangered mussels from incremental decreases in minimum flows Carbon sequestration rates in managed and tidal freshwater marshes in the Waccamaw National Wildlife Refuge, South Carolina Science-based needs of 2 broad-partnership-based conservation initiatives in the Lower Mississippi Valley The First Step in Defining Sustainable Aquascapes: Spatially-explicit Quantification of Water Quantity, Timing and Distribution on Southeast Region National Wildlife Refuges