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Agenda - March 11, 2015 Workshop
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Urban Woodlands Conservation and Management Workshop. Organized and facilitated by the National Park Service to identify and create opportunities for greater collaboration among urban woodland researchers and managers working to restore and manage urban woodland ecosystems.
To view the goals and objectives of the workshop, please open the workshop agenda.
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Cultural Resources
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Urban Conservation
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Urban Woodlands Conservation and Restoration
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AMJV Partnership Receives $8 Million RCPP Award to Enhance Cerulean Habitat
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A project proposal from the Appalachian Mountains Joint Venture (AMJV) Partnership was one of 115 high-impact projects to receive in total more than $370 million as part of the new Regional Conservation Partnership Program (RCPP), Agriculture Secretary Tom Vilsack announced today.
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News & Events
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Bennet Bayou Coastal Marsh Restoration
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Bennett Bayou’s is a gateway to the Pascagoula River marshes. The Pascagoula River is the largest unimpeded river system in the continental U.S. It supports habitats for about 22 threatened and endangered species, and serves as a critical refueling and rest stop for birds during intercontinental migrations. Beneficiaries of restoration include red drum, brown and white shrimp, Gulf sturgeon, speckled trout and Atlantic croaker.
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Resources
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Whitewater to Bluewater W2B
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Bird Richness and Abundance in Response to Urban Form in a Latin American City
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There is mounting evidence that urban areas influence biodiversity. Generalizations how- ever require that multiple urban areas on multiple continents be examined. Here we evaluated the role of urban areas on avian diversity for a South American city, allowing us to examine the effects of urban features common worldwide, using the city of Valdivia, Chile as case study. We assessed the number of birds and their relative abundance in 152 grid cells of equal size (250 m2) distributed across the city. We estimated nine independent variables: land cover diversity (DC), building density (BD), impervious surface (IS),municipal green space (MG),non-municipal green space (NG), domestic garden space (DG), distance to the periphery (DP), social welfare index (SW), and vegetation diversity (RV). Impervious surface represent 41.8% of the study area, while municipal green, non-municipal green and domestic garden represent 11.6%, 23.6% and 16% of the non- man made surface. Exotic vegetation species represent 74.6% of the total species identified across the city. We found 32 bird species, all native with the exception of House Sparrow and Rock Pigeon. The most common species were House Sparrow and Chilean Swallow. Total bird richness responds negatively to IS and MG, while native bird richness responds positively to NG and negatively to BD, IS DG and, RV. Total abundance increase in areas with higher values of DC and BD, and decrease in areas of higher values of IS, SW and VR. Native bird abundance responds positively to NG and negatively to BD, IS MG, DG and RV. Our results suggest that not all the general patterns described in previous studies, conducted mainly in the USA, Europe, and Australia, can be applied to Latin American cities, having important implications for urban planning. Conservation efforts should focus on non-municipal areas, which harbor higher bird diversity, while municipal green areas need to be improved to include elements that can enhance habitat quality for birds and other species. These findings are relevant for urban planning in where both types of green space need to be considered, especially non-municipal green areas, which includes wetlands, today critically threatened by urban development.
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Resources
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Climate Science Documents
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Carbon Sequestration in Two Created Riverine Wetlands in the Midwestern United States
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Wetlands have the ability to accumulate significant amounts of carbon (C) and thus could provide an effective approach to mitigate greenhouse gas accumulation in the atmosphere. Wetland hydrology, age, and management can affect primary productivity, decomposition, and ultimately C sequestration in riverine wetlands, but these aspects of wetland biogeochemistry have not been adequately investigated, especially in created wetlands. In this study we investigate the ability of created freshwater wetlands to sequester C by determining the sediment accretion and soil C accumulation of two 15-yr-old created wetlands in central Ohio—one planted and one naturally colonized. We measured the amount of sediment and soil C accumulated over the parent material and found that these created wetlands accumulated an average of 242 g C m-2 yr-1, 70% more than a similar natural wetland in the region and 26% more than the rate estimated for these same wetlands 5 yr before this study. The C sequestration of the naturally colonized wetland was 22% higher than that of the planted wetland (267 ± 17 vs. 219 ± 15 g C m-2 yr-1, respectively). Soil C accrual accounted for 66% of the aboveground net primary productivity on average. Open water communities had the highest C accumulation rates in both wetlands. This study shows that created wetlands can be natural, cost-effective tools to sequester C to mitigate the effect of greenhouse gas emissions.
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Resources
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Climate Science Documents
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Changes in Avian and Plant Communities of Aspen Woodlands over 12 Years after Livestock Removal in the Northwestern Great Basin
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Riparian and quaking aspen (Populus tremuloides) woodlands are centers of avian abundance and diversity in the western United States, but they have been affected adversely by land use practices, particularly livestock grazing. In 1990, cattle were removed from a 112,500-ha national wildlife refuge in southeastern Oregon. Thereafter, we monitored changes in vegetation and bird abundance in years 1–3 (phase 1) and 10–12 (phase 2) in 17 riparian and 9 snow-pocket aspen plots. On each 1.5-ha plot, we sampled vegetation in 6 transects. Three times during each breeding season, observers recorded all birds 50 m to each side of the plot’s 150-m centerline for 25 minutes. We analyzed data with multivariate analysis of variance and paired t tests with p values adjusted for multiple comparisons. In both periods, riparian and snow-pocket aspen produced extensive regeneration of new shoots ( x ̄ = 2646 stems/ha and 7079 stems/ha, respectively). By phase 2, a 64% increase in medium-diameter trees in riparian stands indicated successful recruitment into the overstory, but this pattern was not seen in snow-pocket stands, where the density of trees was over 2 times greater. By phase 2 in riparian and snow-pocket stands, native forb cover had increased by 68% and 57%, respectively, mesic shrub cover had increased by 29% and 58%, and sagebrush cover had decreased by 24% and 31%. Total avian abundance increased by 33% and 39% in riparian and snow-pocket aspen, respectively, ground or understory nesters increased by 133% and 67% and overstory nesters increased by 34% and 33%. Similarly, ground or understory foragers increased by 25% and 32%, aerial foragers by 55% and 57%, and overstory foragers by 66% and 43%. We interpreted the substantial regeneration of aspen shoots, increased densities of riparian forbs and shrubs, and increased avian abundances as a multitrophic-level response to the total removal of livestock and as substantial movement toward recovery of biological integrity.
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Resources
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Climate Science Documents
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Channel, Bank, & Riparian Restoration to Improve Habitat and Water Quality in Kings River, AR
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The natural course and riparian corridor of the Kings River have been significantly modified by various landowners over several decades, leading to channel instability and decreased habitat and water quality. The Nature Conservancy (TNC) purchased a preserve on the Kings River that includes nine miles of river. To protect and restore river and riparian habitat, TNC has created a stream channel and floodplain restoration project along 0.5 miles of the river.
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Resources
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Whitewater to Bluewater W2B
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Chipola River Watershed Restoration Listed Mussels and Black Bass Initiative
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A Chipola River watershed partnership between the U.S. Fish and Wildlife Service (Service) and Florida Fish and Wildlife Conservation Commission (FWC) have been initiated since 2006. The purpose was to develop and lead a research-based platform for environmental restoration and conservation. The Service, along with FWC, West Florida RC&D; Council and others developed a Chipola River Watershed Management Plan (CRWMP) to achieve management and conservation of fish and wildlife resources. This proposal is for the next steps toward management activities under the CRWMP.
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Resources
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Whitewater to Bluewater W2B
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Community-Based and Larger-Scale Oyster Restoration in ACE Basin NERR, South Carolina
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This project will build intertidal shorelines with oyster reefs.
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Resources
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Whitewater to Bluewater W2B
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Community-based and larger-scale oyster restoration in ACE Basin NERR Phase II
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This project will create and protect intertidal oyster reefs and saltmarsh, essential fish habitat, within the Ashepoo-Combahee-Edisto (ACE) Basin National Estuarine Research Reserve in South Carolina. Organization: South Carolina Department of Natural Resources.
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Resources
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Whitewater to Bluewater W2B
