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Globally, groundwater dependent ecosystems (GDEs) are increasingly vulnerable to groundwater extraction and land use practices. Groundwater supports these ecosystems by providing inflow, which can maintain water levels, water temperature, and chemistry necessary to sustain the biodiversity that they support. Many aquatic systems receive groundwater as a portion of base flow, and in some systems (e.g., springs, seeps, fens) the connection with groundwater is significant and important to the system’s integrity and persistence. Groundwater management decisions for human use may not consider ecological effects of those actions on GDEs, which rely on groundwater to maintain ecological function. This disconnect between...
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The dwarf wedgemussel (Alasmidonta heterodon) is a federally endangered freshwater mussel that once ranged from New Brunswick to North Carolina, but now only exists in isolated populations throughout its diminished range. This study aimed to understand links between fish abundance and dwarf wedgemussel abundance and occurrence in the Connecticut and Delaware watersheds. Specifically, my study objectives were to 1) characterize fish assemblages near dwarf wedgemussel locations and unoccupied locations, 2) determine if dwarf wedgemussel occurrence and abundance are related to abundance of the known host fish species, tessellated darter and other potential host fish species per St. John White et. al. (2017). Two fish...
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Grouse: These data on sharp-tailed grouse survival times are provided for individuals wanting to run an age-period survival analysis. Entry and exit times are expressed in integer days from the start of the study. Entry age and exit age expressed in integer days are also included. Data are structured to implement survival analysis. White-tailed Deer: These data on white-tailed deer survival times are provided for individuals wanting to run an age-period survival analysis. Entry and exit times are expressed in integer weeks from the start of the study. Entry age and exit age expressed in integer weeks are also included. Data are structured to implement survival analysis. Only adult female individuals that were chronic-wasting...
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We developed and tested neural network-based models to recognize and count emigrating juvenile river herring in continuous video. Continuous video was collected from an underwater camera installed at Great Herring Pond in Bourne, Massachusetts (USA) between June and November 2017. Our algorithm extracts video frames to assess presence/absence of fish and count numbers of fish emigrating. We used extracted video frames to assess model performance. Provided datasets include information about extracted frames that were used for model assessment. This data release includes four datasets that were used to test model performance and select the best fitting model. (1) The “Model Evaluation Dataset” includes count and presence/absence...
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Petroleum within unconventional source-rock reservoirs is hosted in organic matter and mineral pore space as well as in voids and microfractures. Recent work has shown that for source-rock reservoirs in the dry gas window, significant portions of methane (CH4), the main component of petroleum at elevated maturities, can be stored within fine organic matter porosity. However, within reservoirs at lower thermal maturities (e.g., peak oil or wet-gas conditions), the distribution and behavior of CH4 and the higher alkanes that comprise gas condensates across pore sizes is unclear, especially for fine pores with diameters <50 nm. Understanding CH4 within these settings provides insight for petroleum generation, movement,...
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Floodplain inundation is believed to be the dominant physical driver of an array of ecosystem patterns and processes in the Upper Mississippi River System (UMRS). Here, we present the results of a geospatial surface-water connectivity model in support of ecological investigations fully described in the USGS Open File Report entitled “Indicators of Ecosystem Structure and Function for the Upper Mississippi River System” (De Jager et al., in review). Briefly, we identified likely instances of floodplain submergence by comparing a daily time series of gage-derived water surface elevations to topo-bathymetric data modified to account for slopes and hydrologic routing. The resulting raster attribute table contains columns...
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Floodplain inundation is believed to be the dominant physical driver of an array of ecosystem patterns and processes in the Upper Mississippi River System (UMRS). Here, we present the results of a geospatial surface-water connectivity model in support of ecological investigations fully described in the USGS Open File Report entitled “Indicators of Ecosystem Structure and Function for the Upper Mississippi River System” (De Jager et al., in review). Briefly, we identified likely instances of floodplain submergence by comparing a daily time series of gage-derived water surface elevations to topo-bathymetric data modified to account for slopes and hydrologic routing. The resulting raster attribute table contains columns...
The Khutia cluster is named for a village in Abkhazia, a break-away province in western Georgia in the western Caucasus Mountains. Most of the cluster is in Abkhazia, but one dense subcluster of events is off-shore in the Black Sea. The cluster contains a 6.5 Ms event on July 16, 1963 and five earthquakes of magnitude 5.0-5.6 so there is a good sample of teleseismic data. Station distribution for direct calibration is not ideal and a robust result is only obtained by including a fairly large geographic region, using many observations around 1° epicentral distance, and including many earthquakes that are mainly observed at regional distances. All events have depth control, mainly from near-source and local distance...
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Data presented are results of surveys in 2021 for San Diego Cactus Wren (Campylorhynchus brunneicapillus) in southern San Diego County. Surveys were conducted at 378 plots. Plots were surveyed twice in 2021 and the number, age (adult or juvenile), banding status (color banded or not), and breeding status (paired, unpaired, or unknown) of all wrens recorded. Habitat covariate data were collected including amount of dead and stressed cactus in the plot, percent cover of bare ground, and the dominant and percent cover of invasive species.
Presentation given at the 2014 North American Congress on Conservation Biology July 13-16, 2014 in Missoula Montana Abstract: The Crown of the Continent Ecosystem (CCE) is considered an ecologically intact ecosystem and one of the most diverse in North America, but like many natural areas, habitat fragmentation represents one of the area’s most pressing concerns. Species perceive and move through landscapes in different ways; understanding how these differences impact connectivity is vital to conservation efforts. Using resistant kernel connectivity modelling, this study explores connectivity in the CCE using a suite of hypothetical species to understand the synoptic patterns of connectivity in the CCE for multiple...
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This dataset represents the railways within a 5km buffer of the Crown of the Continent Ecosytem. This dataset contains all freely available spatial information on railways within the Crown of the Continent. Due to the free nature of the data, it is of mixed quality and should not necessarily be considered an exhaustive representaion.
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This geodatabase contains all freely available spatial information on pipelines in the Crown of the Continent area. Due to the free nature of the data, it is of mixed quality and should not be considered inclusive of all pipelines actually in the region.
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Delineates outbreaks of the two focal species referred to as Mountain Pine Bettle Covers the CCE and 50km into the surrounding area from 2000 to 2015. This layer is a compilation from multiple sources, Bruce spanworm polygons were removed from Alberta data. This dataset was developed by the Crown Managers Partnership, as part of a transboundary collaborative management initiative for the Crown of the Continent Ecosystem, based on commonly identified management priorities that are relevant at the landscape scale. The CMP is collaborative group of land managers, scientists, and stakeholder in the CCE. For more information on the CMP and its collaborators, programs, and projects please visit: http://crownmanagers.org/
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Data presented are results of surveys in 2021 for Southwestern Willow Flycatcher (Empidonax traillii extimus) in San Diego County, California. Surveys were conducted at the 2016-19 nest monitoring locations (Cleveland National Forest, Rey River Ranch, and Vista Irrigation District) and at Lake Henshaw along the Upper San Luis Rey River. Surveys were conducted along multiple sections of the river where permission to access properties could be obtained. Locations were surveyed using a standardized protocol three to four times between 15 May and 31 July. The number, age (adult or juvenile), sex, banding status (color banded or not, and if so, color combination), and breeding status (paired, undetermined, or transient)...
map background search result map search result map Major Lakes Crown of the Continent Ecosystem (CCE) Pipelines in the Crown of the Continent Ecosystem Railways in the Crown of the Continent Ecosystem Roads c2011 in the Crown of the Continent Ecosystem Mountain Pine Beetle in the Crown of the Continent (2000-2015) West Virginia 2015 State Wildlife Action Plan Species of Greatest Conservation Need AIS Distribution in Lakes (MT) UMRS Floodplain Inundation Attributes - Pool 9 UMRS Floodplain Inundation Attributes - Pool 26 Puerto Rico 2015 State Wildlife Action Plan Species of Greatest Conservation Need Fish Surveys within 500-meters of Alasmidonta heterodon in the Connecticut and Delaware Watersheds from 1999 - 2019 Surveys and Monitoring of Coastal Cactus Wren in Southern San Diego County, 2021 Southwestern Willow Flycatcher (Empidonax traillii extimus) Surveys in San Diego County, California, 2021 White-tailed deer and sharp-tailed grouse data used in constrained generalized additive models to enhance survival analyses and incorporate ecological theory Distribution Models Predicting Groundwater Influenced Ecosystems in the Northeastern United States Total neutron scattering of methane in Niobrara Formation samples at the wet-gas maturity level Data used to test a video monitoring and computational system for estimating juvenile fish abundance Georgia, Khutia: 1963-2022 Total neutron scattering of methane in Niobrara Formation samples at the wet-gas maturity level Data used to test a video monitoring and computational system for estimating juvenile fish abundance Southwestern Willow Flycatcher (Empidonax traillii extimus) Surveys in San Diego County, California, 2021 UMRS Floodplain Inundation Attributes - Pool 26 Puerto Rico 2015 State Wildlife Action Plan Species of Greatest Conservation Need AIS Distribution in Lakes (MT) Georgia, Khutia: 1963-2022 Fish Surveys within 500-meters of Alasmidonta heterodon in the Connecticut and Delaware Watersheds from 1999 - 2019 Pipelines in the Crown of the Continent Ecosystem Railways in the Crown of the Continent Ecosystem West Virginia 2015 State Wildlife Action Plan Species of Greatest Conservation Need Roads c2011 in the Crown of the Continent Ecosystem Mountain Pine Beetle in the Crown of the Continent (2000-2015) Distribution Models Predicting Groundwater Influenced Ecosystems in the Northeastern United States Major Lakes Crown of the Continent Ecosystem (CCE)