Skip to main content
Advanced Search

Filters: partyWithName: Dave Theobald (X)

21 results (28ms)   

Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Types
Tag Schemes
View Results as: JSON ATOM CSV
thumbnail
An estimated value for the ability of managers to dirct actions to protect, restore, or mitigate species and habitats. We recognize that our preliminary estimates are arbitrary and fairly approximate, but argue that making these explicit within a framework will enable stakeholders and managers to conduct subsequent analyses to better support their decision making.
thumbnail
For the Green River Basin Landscape Conservation Design (GRB LCD) assessment, we mapped the vulnerability of the sagebrush ecosystem to oil and gas development for each 12-digit hydrologic unit. Using a vulnerability framework, we defined Sensitivity (S) as the multi-scale average of sagebrush ecosystem land cover derived from LANDFIRE Existing Vegetation Type (LANDFIRE 2014). Exposure (E) to oil and gas development was quantified as the average kernel density of active oil and gas wells at multiple scales. Potential Impact (PI) is the square root transformed product of oil and gas development exposure and sagebrush ecosystem sensitivity. Adaptive Capacity (AC) for sagebrush ecosystem was quantified as the inverse...
thumbnail
The landscape permeability model represents the structural connectivity of sagebrush ecosystem habitat in the Green River Basin (including ~5-10 km boundary outside of the GRB. This model connects patches of habitat, across the landscape using resistances that represent the degree of human modification and slope (energetic costs), using the Multi-Scale Landscape Permeability model (Theobald et al. 2012; Theobald unpublished). We used two metrics: (a) patch importance and (b) betweeness centrality amongst patches. These metrics were summarized for each HUC12. This dataset represents the vulnerability of sagebrush ecosystem permeability to human modification summarized for each HUC12 watershed within the Green River...
thumbnail
The Green River Basin Landscape Conservation Design project (GRB LCD) is an opportunity to think, plan, and act across boundaries and jurisdictions to meet mutual goals for agreed upon conservation targets in the ecosystems of the Green River Basin. This effort is not intended to replace existing science or plans, and is not intended to undermine current management. Rather, through a collaborative process, the project will complement existing projects and partnerships by synthesizing and developing spatial data and information that is consistent and comprehensive across the Basin to provide the landscape-scale context.FY2015The Green River Basin Landscape Conservation Design project (GRB LCD) is an opportunity to...
thumbnail
An estimated value for the ability of managers to dirct actions to protect, restore, or mitigate species and habitats. We recognize that our preliminary estimates are arbitrary and fairly approximate, but argue that making these explicit within a framework will enable stakeholders and managers to conduct subsequent analyses to better support their decision making.
thumbnail
An estimated value for the ability of managers to dirct actions to protect, restore, or mitigate species and habitats. We recognize that our preliminary estimates are arbitrary and fairly approximate, but argue that making these explicit within a framework will enable stakeholders and managers to conduct subsequent analyses to better support their decision making.
thumbnail
This project will assess impacts of climate change on stream resources by considering the role of thermal heterogeneity and altered hydrologic regimes. The project will look at streams in Washington, Oregon, and California to develop a case study that stream stewards and conservation planners can use to assess vulnerability for Pacific salmon.Successful adaptation strategies for freshwater biota will consider how spatial patterns in water temperature may respond to climate change. Using remotely sensed spatially continuous maximum water temperature data for~ 30 large rivers throughout the lower portion of the NPLCC, we will map locations of cold water patches, identify potential hydroclimatic and landscape drivers,...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2014, Academics & scientific researchers, Anadromous fish, Applications and Tools, California, All tags...
thumbnail
We represent vulnerability as matrix that relates impacts with adaptive capacity. Vulnerability is high when impact is high and adaptive capacity is low. Vulnerability is moderate when either the impact is high and adaptive capacity is high, or if impact is low and adaptive capacity is low. Vulnerability is low when impact is low and adaptive capacity is high. We represent these conceptually as categorical for ease of discussion, but in reality there is continuum of vulnerabilities, and a different adaptation strategies and likely conservation actions, depending on the characteristics of the vulnerability.
thumbnail
For the Green River Basin Landscape Conservation Design (GRB LCD) assessment, we mapped the vulnerability of sagebrush ecosystem to climate change and resistance/resilience for each 12-digit hydrologic unit. Using a vulnerability framework, we defined Sensitivity (S) as the multi-scale average of sagebrush ecosystem land cover derived from LANDFIRE Existing Vegetation Type (LANDFIRE 2014). Exposure (E) to climate change was based on the max-normalized value of climate velocity from AdaptWest (2015). Potential Impact (PI) is the square root transformed product of climate change exposure and sagebrush ecosystem sensitivity. Adaptive Capacity (AC) of sagebrush ecosystem to climate change was based on soil and landform...
thumbnail
We represent vulnerability as matrix that relates impacts with adaptive capacity. Vulnerability is high when impact is high and adaptive capacity is low. Vulnerability is moderate when either the impact is high and adaptive capacity is high, or if impact is low and adaptive capacity is low. Vulnerability is low when impact is low and adaptive capacity is high. We represent these conceptually as categorical for ease of discussion, but in reality there is continuum of vulnerabilities, and a different adaptation strategies and likely conservation actions, depending on the characteristics of the vulnerability.
thumbnail
We represent vulnerability as matrix that relates impacts with adaptive capacity. Vulnerability is high when impact is high and adaptive capacity is low. Vulnerability is moderate when either the impact is high and adaptive capacity is high, or if impact is low and adaptive capacity is low. Vulnerability is low when impact is low and adaptive capacity is high. We represent these conceptually as categorical for ease of discussion, but in reality there is continuum of vulnerabilities, and a different adaptation strategies and likely conservation actions, depending on the characteristics of the vulnerability.
thumbnail
This project will assess impacts of climate change on stream resources by considering the role of thermal heterogeneity and altered hydrologic regimes. The project will look at streams in Washington, Oregon, and California to develop a case study that stream stewards and conservation planners can use to assess vulnerability for Pacific salmon. Successful adaptation strategies for freshwater biota will consider how spatial patterns in water temperature may respond to climate change. Using remotely sensed spatially continuous maximum water temperature data for~ 30 large rivers throughout the lower portion of the NPLCC, we will map locations of cold water patches, identify potential hydroclimatic and landscape drivers,...
thumbnail
Land managers have incorporated threats to biodiversity for nearly two decades, but very few efforts have included threats from future conditions and fewer still have assessed vulnerability to climate change. This project will address two themes: 1) providing foundational information about habitat fragmentation and connectivity and 2) identifying the degree of vulnerability of key habitats to climate change.For development of understanding broadextent, a landscape-level pattern of climate change is an important complement to approaches to estimate rangeshifts for certain key focal species. Ecological system types (i.e. coarsefilters) are widely used in conservation planning because they contain valuable resources...
Categories: Data, Project; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AZ-01, AZ-04, Applications and Tools, CO-02, CO-03, All tags...
Land managers have incorporated threats to biodiversity into land-use designation and management decisions for nearly two decades, but few efforts have included threats from future conditions and fewer still have assessed vulnerability to climate change. Our work provides foundational information about habitat fragmentation and connectivity in the Southern Rockies ecosystem and identifies the degree of vulnerability of water-limited habitats to climate change. This information is urgently needed because the region is facing large changes in climate conditions that will occur over broad landscapes. In addition to well-documented habitat fragmentation due to urban and energy development and associated transportation...


map background search result map search result map Vulnerability and Connectivity of Natural Landscapes and Riparian Habitat in the SRLCC Incorporating Spatial Heterogeneity in Temperature into Climate Vulnerability Assessments for Coastal Pacific Streams Riparian Vulnerability, RCP 4.5 Riparian Vulnerability, RCP 8.5 Terrestrial Vulnerability, RCP 8.5 Riparian Impact Combined, RCP 4.5 Riparian Impact Combined, RCP 8.5 Terrestrial Impact Combined, RCP 4.5 Terrestrial Impact Combined, RCP 8.5 Adaptive Capacity, High Range Adaptive Capacity, Low Range Adaptive Capacity, Preliminary Green River Basin Landscape Conservation Design Final Report Vulnerability of Sagebrush Ecosystem to Oil and Gas Development for the Green River Basin Vulnerability of Sagebrush Ecosystem Permeability to Human Modification within the Green River Basin Vulnerability of Sagebrush Ecosystem to Climate Change within the Green River Basin Vulnerability of Sagebrush Ecosystem to Oil and Gas Development for the Green River Basin Vulnerability of Sagebrush Ecosystem Permeability to Human Modification within the Green River Basin Vulnerability of Sagebrush Ecosystem to Climate Change within the Green River Basin Incorporating Spatial Heterogeneity in Temperature into Climate Vulnerability Assessments for Coastal Pacific Streams Final Report Green River Basin Landscape Conservation Design Riparian Vulnerability, RCP 4.5 Riparian Vulnerability, RCP 8.5 Terrestrial Vulnerability, RCP 8.5 Riparian Impact Combined, RCP 4.5 Riparian Impact Combined, RCP 8.5 Terrestrial Impact Combined, RCP 4.5 Terrestrial Impact Combined, RCP 8.5 Vulnerability and Connectivity of Natural Landscapes and Riparian Habitat in the SRLCC Adaptive Capacity, High Range Adaptive Capacity, Low Range Adaptive Capacity, Preliminary