47 datasets found
  1. a

    Kernel Density Analyses of Coral and Sponge Catches in Identification of...

    • data-with-cpaws-nl.hub.arcgis.com
    Updated May 13, 2022
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    Canadian Parks and Wilderness Society (2022). Kernel Density Analyses of Coral and Sponge Catches in Identification of Significant Benthic Areas, Atlantic Canada [Dataset]. https://data-with-cpaws-nl.hub.arcgis.com/maps/455cdaa5942a41d495f5782ccb8ffdc5
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    Dataset updated
    May 13, 2022
    Dataset authored and provided by
    Canadian Parks and Wilderness Society
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Description

    Original data can be downloaded from here. Another online version of the data can be found HERE.This version presented and hosted by CPAWS-NL allows for data extraction and analysis within ArcGIS Online Map Viewer."Kernel density estimation (KDE) utilizes spatially explicit data to model the distribution of a variable of interest. It is a simple non-parametric neighbor-based smoothing function that relies on few assumptions about the structure of the observed data. It has been used in ecology to identify hotspots, that is, areas of relatively high biomass/abundance, and in 2010 was used by Fisheries and Oceans Canada to delineate significant concentrations of corals and sponges. The same approach has been used successfully in the Northwest Atlantic Fisheries Organization (NAFO) Regulatory Area. Here, we update the previous analyses with the catch records from up to 5 additional years of trawl survey data from Eastern Canada, including the Gulf of St. Lawrence. We applied kernel density estimation to create a modelled biomass surface for each of sponges, small and large gorgonian corals, and sea pens, and applied an aerial expansion method to identify significant concentrations of theses taxa. We compared our results to those obtained previously and provided maps of significant concentrations as well as point data co-ordinates for catches above the threshold values used to construct the significant area polygons. The borders of the polygons can be refined using knowledge of null catches and species distribution models of species presence/absence and/or biomass." (DOI: 10.17632/dtk86rjm86.2)

  2. Number of incidents counted within census tracts based on different spatial...

    • plos.figshare.com
    xls
    Updated Jun 16, 2023
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    Jacqueline W. Curtis (2023). Number of incidents counted within census tracts based on different spatial join approaches. [Dataset]. http://doi.org/10.1371/journal.pone.0179331.t002
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    xlsAvailable download formats
    Dataset updated
    Jun 16, 2023
    Dataset provided by
    PLOShttp://plos.org/
    Authors
    Jacqueline W. Curtis
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    Number of incidents counted within census tracts based on different spatial join approaches.

  3. Spatial-temporal characteristics and causes of changes to the county-level...

    • plos.figshare.com
    tiff
    Updated Jun 4, 2023
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    Yingying Wang; Yingjie Wang; Lei Fang; Shengrui Zhang; Tongyan Zhang; Daichao Li; Dazhuan Ge (2023). Spatial-temporal characteristics and causes of changes to the county-level administrative toponyms cultural landscape in the eastern plains of China [Dataset]. http://doi.org/10.1371/journal.pone.0217381
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    tiffAvailable download formats
    Dataset updated
    Jun 4, 2023
    Dataset provided by
    PLOShttp://plos.org/
    Authors
    Yingying Wang; Yingjie Wang; Lei Fang; Shengrui Zhang; Tongyan Zhang; Daichao Li; Dazhuan Ge
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    China
    Description

    As part of the cultural landscape, administrative toponyms do not only reflect natural and sociocultural phenomena, but also help with related management and naming work. Historically, county-level administrative districts have been stable and basic administrative regions in China, playing a role in the country’s management. We explore the spatio-temporal evolutionary characteristics of the county-level administrative toponyms cultural landscape in China’s eastern plains areas. A Geographical Information System (GIS) analysis, Geo-Informatic Tupu, Kernel Density Estimation, and correlation coefficients were conducted. We constructed a GIS database of county-level administrative toponyms from the Sui dynasty onward using the Northeast China, North China, and Yangtze Plains as examples. We then summarized the spatio-temporal evolutionary characteristics of the county-level administrative toponyms cultural landscape in China’s eastern plains areas. The results indicate that (1) the number of toponyms has roughly increased over time; (2) toponym densities on the three plains are higher than the national average in the corresponding timeframe since the Sui; and (3) county-level administrative toponyms related to mountains and hydrological features accounted for more than 30% of the total in 2010. However, the percentage of county-level administrative toponyms related to natural factors on the three plains has decreased since the Sui. To explore the factors influencing this spatio-temporal evolution, we analyzed the correlations between the toponyms and natural factors and human/social factors. The correlation degree between toponym density and population density is the highest, and that between toponym density and Digital Elevation Model (DEM) the lowest. Temperature changes were important in toponym changes, and population changes have influenced toponym changes over the last 400 years in China.

  4. Data from: Socioeconomic drivers data from GIS to predict forest fires at...

    • zenodo.org
    • portalcientifico.uah.es
    Updated Feb 9, 2024
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    LARA VILAR; LARA VILAR (2024). Socioeconomic drivers data from GIS to predict forest fires at regional level: kernel density fires response variable [Dataset]. http://doi.org/10.5281/zenodo.10608998
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    Dataset updated
    Feb 9, 2024
    Dataset provided by
    Zenodohttp://zenodo.org/
    Authors
    LARA VILAR; LARA VILAR
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Time period covered
    Jan 7, 2011
    Description

    This data gathers socioeconomic drivers at 1km2 grid cell spatial resolution to predict forest fires in a region in Spain. The response variable was fire density by grid cell from kernel density methods. It was produced under the Firemap project (https://geogra.uah.es/firemap/) by using GIS, spatial and statistical data sources at regional level in Spain. The resulting work was published at Vilar del Hoyo L, Martín Isabel MP, Martínez Vega FJ. 2011. Logistic regression models for human-caused wildfire risk estimation: analysing the effect of the spatial accuracy in fire occurrence data. European Journal of Forest Research. 130:983-96. doi: 10.1007/s10342-011-0488-2

  5. a

    BLM ID Greater Sage-grouse Occupied Habitat poly

    • gbp-blm-egis.hub.arcgis.com
    • catalog.data.gov
    Updated Oct 4, 2024
    + more versions
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    Bureau of Land Management (2024). BLM ID Greater Sage-grouse Occupied Habitat poly [Dataset]. https://gbp-blm-egis.hub.arcgis.com/datasets/BLM-EGIS::blm-id-greater-sage-grouse-occupied-habitat-poly
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    Dataset updated
    Oct 4, 2024
    Dataset authored and provided by
    Bureau of Land Management
    Area covered
    Description

    In Dec 2017, Idaho made decision to use a 95% kernel density estimate on all their telemetry data as well as observation points provided by ID Department of Fish and Game. In March 2018, a national decision was made to consistently buffer occupied leks by 6.4 km. Idaho then merged the buffered leks with the KDE and maintains an occupancy layer for the State.

  6. a

    Coastal Recreation Density

    • hub.arcgis.com
    Updated Nov 29, 2018
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    California State Lands Commission (2018). Coastal Recreation Density [Dataset]. https://hub.arcgis.com/maps/CSLC::coastal-recreation-density-
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    Dataset updated
    Nov 29, 2018
    Dataset authored and provided by
    California State Lands Commission
    Area covered
    Description

    Please note that this data was selected from a larger dataset for use in the San Diego Ocean Planning Partnership, a collaborative pilot project between the California State Lands Commission and the Port of San Diego. For more information about the Partnership, please visit: https://www.sdoceanplanning.org/ The data was retrieved in May 2018 from OceanSpaces.org and is now available at https://data.cnra.ca.gov/dataset/spatial-and-economic-human-uses-california-south-coast-mpa-baseline-study-1992-to-2012 (Chen et al. An Economic and Spatial Baseline of Coastal Recreation in the South Coast of California. OceanSpaces.org. Retrieved May 2018).These data are a Kernel Density layers produced using ArcGIS. The Kernel analysis is a nonparametric statistical method for estimating probability densities from a set of points. Conceptually, a smooth raster surface is fitted over each point. The surface value is highest at the location of the point and diminishes with increasing distance (i.e.search radius), eventually reaching zero. A default value is calculated by the analysis tool for the search radius based on the input data; increasing the radius has little affect on the density value. Although more points will fall inside a larger search radius the number will be divided by a larger area when calculating density resulting in a more generalized output raster. The volume under the surface equals the weighted value for the point. The weights were created by Knowledge Networks and applied to the points based on demographics. The density of the output raster is calculated by adding the values of all the individual surfaces where they overlap. The point's weighted value determines the number of times to count the point. For example, a weighted value of 1.5 would cause the point to be counted one and half times. The resulting dataset is a smooth raster surface depicting the intensity use or density of an activity. Based on previous experience and after conducting some tests, all of the activity datasets were given a search radius of one mile. In discussing a similar project with the Oregon Department of Parks and Recreation we discovered that most visitors to the coast stay within a mile of their activity location. This distance also proved to be a good match to the mapped activities.

  7. a

    ADFG Caribou Seasonality and Movement

    • gis.data.alaska.gov
    • akscf-msb.opendata.arcgis.com
    • +2more
    Updated Oct 2, 2018
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    Alaska Department of Fish & Game (2018). ADFG Caribou Seasonality and Movement [Dataset]. https://gis.data.alaska.gov/datasets/0b24009665a34a709901017d519d39b5
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    Dataset updated
    Oct 2, 2018
    Dataset authored and provided by
    Alaska Department of Fish & Game
    Description

    Analysis condicted by ABR Inc.–Environmental Research & Services.Data from ADFG/BLM/NSB and ConocoPhillips Alaska Inc.For Brownian Bridge Movement Models - Conducted dynamic Brownian Bridge Movement Models (dBBMM) to delineate movmeents on seasonal herd ranges. dBBMM models were run using the move package for r using the following methods.1. Locations within 30 days of first collaring were removed from the analysis. 2. Selected females from PTT and GPS collars during the date range July 1 2012–June 30 2017 and individuals having more than 30 locations per season.3. ran a dBBMMM model for each individual during each season using 1 km pixels. 4. Calculate the 95% isopleth for each individual.5. Overlap all 95% isopleths and calculate the proportion of animals using (as defined by 95% isopleth) each pixel. Value shown is proportion times 1000. Seasons used: Winter (Dec 1-Apr 15); Spring (Apr 16-May 31); Calving (June 1-15); postcalving (June 16-30); Mosquito (July 1-15); Oestrid Fly (July 16-Aug 7); late summer (August 8-Sept 15); Fall Migration (Sept 16-Nov 30). For Kernel Density Estimates - Conducted Kernel Density Estimation (KDE) to delineate seasonal herd ranges. Kernels were run using the ks package for r and the plugin bandwidth estimator. 1. Locations within 30 days of first collaring were removed from the analysis. 2. The mean latitiude and longitude for each animal was calculated for each day.3. A KDE utilization distribution was calculated for Julian day of the season (all years combined). 4. The daily KDE uds were averaged across the season. This method accounts for individual's movements during the seasons without the overfitting that results from using autocorrelated lcoations from individuals.Seasons used: Winter (Dec 1-Apr 15); Spring (Apr 16-May 31); Calving (June 1-15); postcalving (June 16-30); Mosquito (July 1-15); Oestrid Fly (July 16-Aug 7); late summer (August 8-Sept 15); Fall Migration (Sept 16-Nov 30).

  8. a

    Sponge

    • data-with-cpaws-nl.hub.arcgis.com
    Updated May 13, 2022
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    Canadian Parks and Wilderness Society (2022). Sponge [Dataset]. https://data-with-cpaws-nl.hub.arcgis.com/datasets/sponge-1
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    Dataset updated
    May 13, 2022
    Dataset authored and provided by
    Canadian Parks and Wilderness Society
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Description

    Kernel density estimation (KDE) utilizes spatially explicit data to model the distribution of a variable of interest. It is a simple non-parametric neighbour-based smoothing function that relies on few assumptions about the structure of the observed data. It has been used in ecology to identify hotspots, that is, areas of relatively high biomass/abundance, and in 2010 was used by Fisheries and Oceans Canada to delineate significant concentrations of corals and sponges. The same approach has been used successfully in the Northwest Atlantic Fisheries Organization (NAFO) Regulatory Area. Here, we update the previous analyses with the catch records from up to 5 additional years of trawl survey data from Eastern Canada, including the Gulf of St. Lawrence. We applied kernel density estimation to create a modelled biomass surface for each of sponges, small and large gorgonian corals, and sea pens, and applied an aerial expansion method to identify significant concentrations of theses taxa. We compared our results to those obtained previously and provided maps of significant concentrations as well as point data co-ordinates for catches above the threshold values used to construct the significant area polygons. The borders of the polygons can be refined using knowledge of null catches and species distribution models of species presence/absence and/or biomass.

  9. Summary of the data by year.

    • plos.figshare.com
    xls
    Updated Jun 3, 2023
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    Jacqueline W. Curtis (2023). Summary of the data by year. [Dataset]. http://doi.org/10.1371/journal.pone.0179331.t001
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    xlsAvailable download formats
    Dataset updated
    Jun 3, 2023
    Dataset provided by
    PLOShttp://plos.org/
    Authors
    Jacqueline W. Curtis
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    Summary of the data by year.

  10. d

    An Economic and Spatial Baseline of Coastal Recreation in the North Central...

    • datadiscoverystudio.org
    • data.wu.ac.at
    Updated Feb 8, 2018
    + more versions
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    (2018). An Economic and Spatial Baseline of Coastal Recreation in the North Central Coast of California - Beach Going (dog walking, kite flying, etc.). [Dataset]. http://datadiscoverystudio.org/geoportal/rest/metadata/item/c959873534144a4ab45b202f92aecb15/html
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    Dataset updated
    Feb 8, 2018
    Description

    description: These data are a Kernel Density layers produced using ArcGIS. The Kernel analysis is a nonparametric statistical method for estimating probability densities from a set of points. Conceptually, a smooth raster surface is fitted over each point. The surface value is highest at the location of the point and diminishes with increasing distance (i.e.search radius), eventually reaching zero. A default value is calculated by the analysis tool for the search radius based on the input data; increasing the radius has little affect on the density value. Although more points will fall inside a larger search radius the number will be divided by a larger area when calculating density resulting in a more generalized output raster. The volume under the surface equals the weighted value for the point. The weights were created by Knowledge Networks and applied to the points based on demographics. The density of the output raster is calculated by adding the values of all the individual surfaces where they overlap. The point's weighted value determines the number of times to count the point. For example, a weighted value of 1.5 would cause the point to be counted one and half times. The resulting dataset is a smooth raster surface depicting the intensity use or density of an activity. Based on previous experience and after conducting some tests, all of the activity datasets were given a search radius of one mile. In discussing a similar project with the Oregon Department of Parks and Recreation we discovered that most visitors to the coast stay within a mile of their activity location. This distance also proved to be a good match to the mapped activities.Link to the Dataset - ftp://ftp.dfg.ca.gov/R7_MR/NONCONSUMPTIVE/NCCSR/BeachActivities.zip; abstract: These data are a Kernel Density layers produced using ArcGIS. The Kernel analysis is a nonparametric statistical method for estimating probability densities from a set of points. Conceptually, a smooth raster surface is fitted over each point. The surface value is highest at the location of the point and diminishes with increasing distance (i.e.search radius), eventually reaching zero. A default value is calculated by the analysis tool for the search radius based on the input data; increasing the radius has little affect on the density value. Although more points will fall inside a larger search radius the number will be divided by a larger area when calculating density resulting in a more generalized output raster. The volume under the surface equals the weighted value for the point. The weights were created by Knowledge Networks and applied to the points based on demographics. The density of the output raster is calculated by adding the values of all the individual surfaces where they overlap. The point's weighted value determines the number of times to count the point. For example, a weighted value of 1.5 would cause the point to be counted one and half times. The resulting dataset is a smooth raster surface depicting the intensity use or density of an activity. Based on previous experience and after conducting some tests, all of the activity datasets were given a search radius of one mile. In discussing a similar project with the Oregon Department of Parks and Recreation we discovered that most visitors to the coast stay within a mile of their activity location. This distance also proved to be a good match to the mapped activities.Link to the Dataset - ftp://ftp.dfg.ca.gov/R7_MR/NONCONSUMPTIVE/NCCSR/BeachActivities.zip

  11. n

    Tall, heterogenous forests improve prey capture, delivery to nestlings, and...

    • data.niaid.nih.gov
    • search.dataone.org
    • +1more
    zip
    Updated Dec 12, 2022
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    Zachary Wilkinson; H. Anu Kramer; Gavin Jones; Ceeanna Zulla; Kate McGinn; Josh Barry; Sarah Sawyer; Richard Tanner; R. J. Gutiérrez; John Keane; M. Zachariah Peery (2022). Tall, heterogenous forests improve prey capture, delivery to nestlings, and reproductive success for Spotted Owls in southern California [Dataset]. http://doi.org/10.5061/dryad.h70rxwdnq
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    zipAvailable download formats
    Dataset updated
    Dec 12, 2022
    Dataset provided by
    Rocky Mountain Research Station
    Tanner environmental services
    US Forest Service
    University of Minnesota
    University of Wisconsin–Madison
    Authors
    Zachary Wilkinson; H. Anu Kramer; Gavin Jones; Ceeanna Zulla; Kate McGinn; Josh Barry; Sarah Sawyer; Richard Tanner; R. J. Gutiérrez; John Keane; M. Zachariah Peery
    License

    https://spdx.org/licenses/CC0-1.0.htmlhttps://spdx.org/licenses/CC0-1.0.html

    Area covered
    California
    Description

    Predator-prey interactions can be profoundly influenced by vegetation conditions, particularly when predator and prey prefer different habitats. Although such interactions have proven challenging to study for small and cryptic predators, recent methodological advances substantially improve opportunities for understanding how vegetation influences prey acquisition and strengthen conservation planning for this group. The California Spotted Owl (Strix occidentalis occidentalis) is well-known as an old-forest species of conservation concern, but whose primary prey in many regions – woodrats (Neotoma spp.) – occurs in a broad range of vegetation conditions. Here, we used high-resolution GPS tracking coupled with nest video monitoring to test the hypothesis that prey capture rates vary as a function of vegetation structure and heterogeneity, with emergent, reproductive consequences for Spotted Owls in Southern California. Foraging owls were more successful capturing prey, including woodrats, in taller multilayered forests, in areas with higher heterogeneity in vegetation types, and near forest-chaparral edges. Consistent with these findings, Spotted Owls delivered prey items more frequently to nests in territories with greater heterogeneity in vegetation types and delivered prey biomass at a higher rate in territories with more forest-chaparral edge. Spotted Owls had higher reproductive success in territories with higher mean canopy cover, taller trees, and more shrubby vegetation. Collectively, our results provide additional and compelling evidence that a mosaic of large tree forests with complex canopy and shrubby vegetation increases access to prey with potential reproductive benefits to Spotted Owls in landscapes where woodrats are a primary prey item. We suggest that forest management activities that enhance forest structure and vegetation heterogeneity could help curb declining Spotted Owl populations while promoting resilient ecosystems in some regions. Methods See README DOCUMENT Naming conventions *RSF or prey refers to prey capture analysis *delivery in a file name refers to delivery rate analysis *repro in a filename means that file is for the delivery rate analysis

    Setup *files with vegetation data should work with minimal alteration(will need to specify working directory) with associated R code for each analysis *Shapefiles were made in ArcGIS pro but they can be opened with any GIS software such as QGIS.

    Locational data files

    NOTE LOCATIONAL DATA IS SHIFTED AND ROTATED FROM THE ORIGINAL -due to the sensitive nature of this species. The locational_data includes: * All_2021_owls_shifted * Point file showing all GPS tag locations for prey capture analysis * Attributes include: * TERRITORY ID: Numerical identifier for each bird * Year: year GPS tag was recorded * Month: month GPS tag was recorded * Day: Day GPS tag was recorded * Hour: Hour GPS tag was recorded * Minute: minute GPS tag was recorded * All_linked_polygons_shifted * Polygon file showing capture polygons for prey capture analysis * Attributes include * Territory ID: numerical identifier for each bird * Polygon id: numerical identifier for each capture polygon for each bird * Shape area: area of each polygon * SBNF_camera_nests_shifted * Point file showing spotted owl nests for prey capture analysis * Attributes include * Territory id: numerical identifier for each bird * C95_KDE_2021_socal_shifted * Polygon file of owls 95% kernel density estimate for prey delivery rate analysis * Attributes include * Id: numerical identifier for each territory(bird) * Area: area of each polygon * San_bernardino_territory_centers * Point file showing Territory centers for historical SBNF territories – shifted for repro success analysis * Attributes include * Repro Territory id: unique identifier for each territory in broader set of territories

    Besides the sifted locational data we have included - For the Resource selection function vegetation data, for the delivery analysis we have included an overview of prey deliveries by territory and vegetation data used, and for the reproductive analysis we have again included vegetation data as well as an overview of reproductive success. these are labled as follows:

    Files for the prey capture analysis

    Socal_RSF_data.txt

    *description: Text file with vegetation data paired with capture locations both buffered polygons used in prey capture analysis and the unbuffered ones which were not used.(Pair with Socal_rsf_code R script) *format: .txt *Dimensions: 2641 X 35

    *Variables: *ORIG_fid: completely unique identifier for each row *unique_id: unique identifier for each capture polygon(shared between a buffered capture location and its unbuffered pair) *territory_id: unique numerical idenifier of territory *Polygon_id: within territory unique prey capture polygon id *buff: bianary buffered or unbuffered (1=buffered, 0=unbuffered) *used: bianary used=1 available=0 *prey_type: prey species associated with polygon unkn:unknown, flsq:flying squirel, wora:woodrat, umou:mouse, pogo:pocketgopher, grsq: grey squirel, ubrd: unknown bird, umol:unknown mole, uvol, unknown vole. *area_sqm: area of polygon in square meters *CanCov_2020_buff: average canopy cover in polygon *CanHeight_2020_buff: average canopy height in polygon *Canlayer_2020_buff: average number of canopy layers in polygon *Understory_density_2020_buff: average brushy vegetation density in polygon *pix_COUNT: count of pixels in polygon (not needed for analysis) *p_chaparral: percent of polygon comprised of chaparral habitat
    *p_conifer: percent of polygon comprised of conifer habitat *p_hardwood: percent of polygon comprised of hardwood habitat *p_other: percent of polygon comprised of other habitat types *Calveg_cap_CHt_gt10_CC_30to70_intersect_buff: percent of polygon comprised of trees taller than 10m with 30-70percent canopy cover (used to check data) *Calveg_cap_CHt_gt10_CCgt70_intersect_buff: percent of polygon comprised of trees taller than 10m with greater than 70percent canopy cover (used to check data) *Calveg_cap_CHt_lt10_intersect_buff:percent of polygon comprised of trees less than 10m (used to check data)
    *p_sm_conifer: percent of polygon comprised of conifer trees less than 10m (used to calculate diversity)
    *p_lrg_conifer_sc: percent of polygon comprised of conifer forests >10m tall with sparse canopy(used to calculate diversity) *p_large_conifer_dc: percent of polygon comprised of conifer forests greater than 10m tall with dense canopy (used to calculate diversity) *p_sm_hard: percent of polygon comprised of hardwood trees less than 10m (used to calculate diversity) *p_lrg_hard_sc: percent of polygon comprised of hardwood forests greater than 10m with sparse canopy(used to calculate diversity)
    *p_lrg_hard_dc: percent of polygon comprised of hardwood forests greater than 10m dense canopy (used to calculate diversity) *p_forests_gt10_verysparse_CC: percent of polygon comprised of trees less than 10m with very sparse canopies (used to calculate diversity) *primary_edge: total distance in meters of primary edge in a polygon
    *normalized_by_area_primary_edge: total distance in m of primary edge in a polygon divided by the area of the polygon
    *secondary_edge: total distance in meters of secondary edge in a polygon *normalized_by_area_secondary_edge:total distance in m of secondary edge in a polygon divided by the area of the polygon *coarse_diversity: shannon diversity in each polygon (see methods below) *fine_diversity: shannon diversity in each polygon (see methods below) *nest_distance: distance from polygon center to nest for each polygon in meters

    For the Delivery analysis

    note: For information on determining average prey biomass see methods as well as zulla et al 2022 for flying squirels and woodrat masses Zulla CJ, Jones GM, Kramer HA, Keane JJ, Roberts KN, Dotters BP, Sawyer SC, Whitmore SA, Berigan WJ, Kelly KG, Gutiérrez RJ, Peery MZ. Forest heterogeneity outweighs movement costs by enhancing hunting success and fitness in spotted owls. doi:10.21203/rs.3.rs-1370884/v1. PPR:PPR470028.

    prey_deliveries_byterritory.csv *Description: overview file of prey delivered to each nest *format: .csv *dimensions:332 x 8

    *Variables: *SITE: Unique numerical identifier for each territory *DATE: date prey was delivered (in UTC) *CAMERA TIME: time in UTC prey was delivered *VIDEO TIME: time on video prey was delivered - unrelated to real time just original file
    *PREY ITEM: prey species delivered to nest unkn:unknown, uncr: unknown if delivery(removed from eventual analysis due to

  12. f

    DataSheet1_A GIS-based study on the spatial distribution and influencing...

    • datasetcatalog.nlm.nih.gov
    • frontiersin.figshare.com
    Updated Nov 9, 2023
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    Zhang, Ting; Hu, Haihui; Hu, Yuzhu; Lei, Tingting (2023). DataSheet1_A GIS-based study on the spatial distribution and influencing factors of monastic gardens in Jiangxi Province, China.xlsx [Dataset]. https://datasetcatalog.nlm.nih.gov/dataset?q=0000971670
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    Dataset updated
    Nov 9, 2023
    Authors
    Zhang, Ting; Hu, Haihui; Hu, Yuzhu; Lei, Tingting
    Area covered
    Jiangxi, China
    Description

    The temple gardens are an important human landscape and have an important position in the Chinese garden system. Using GIS analysis tools, primarily the Nearest Neighbor Index, Kernel Density Estimation, and Spatial Autocorrelation, and employing a Geographic Detector model, we analyzed the spatial distribution characteristics and influencing factors of 4,317 temples and gardens in Jiangxi Province. Research shows that: 1) The spatial distribution type of temple gardens in Jiangxi Province is agglomeration type, with large spatial differences in distribution, forming a spatial distribution pattern of “generally dispersed and concentrated in some areas”; 2) the distribution of temple gardens in Jiangxi Province is uneven. They are mostly distributed in five prefecture-level cities: Ganzhou, Jiujiang, Shangrao, Fuzhou, and Nanchang; 3) The overall spatial distribution of temple gardens in Jiangxi Province has positive autocorrelation characteristics, and prefecture-level cities have significant proximity characteristics, forming a “high-high” “agglomeration” and “low-low agglomeration” distribution patterns; 4) Temple gardens in various regions are affected by geomorphological factors, and are mostly concentrated in the lower altitude range of 0–500 m and the gentle slope of 0°–30°. Most of the distribution density of temple gardens in various prefecture-level cities is within the buffer zone distance of the road network within the range of 0–1.5 km. 5) Economic, cultural, demographic, and historical factors have affected the development of temple gardens. Areas with more active economies have a denser number of temple gardens. The unique regional culture affects the distribution of temples and gardens in different regions. In places where the modern population is densely distributed, there are fewer temples and gardens, while in places where the population is less densely distributed, there are more temples and gardens. 6) The use of geographical detectors to detect influencing factors shows that the greatest impact on the spatial distribution of temple gardens in Jiangxi Province is the road network, followed by elevation, slope, GDP, and water systems. The research is conducive to scientific understanding of the distribution of temple gardens among prefecture-level cities in Jiangxi Province, and provides reference for strengthening the protection of temple gardens and exploring the tourism characteristics of temple gardens.

  13. f

    Regional regression parameters of GWR model.

    • datasetcatalog.nlm.nih.gov
    Updated Mar 4, 2025
    + more versions
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    Guo, Qi; Yang, Xiaoming; Guan, Jianliang; Yu, Pengfei; Chen, Guohua (2025). Regional regression parameters of GWR model. [Dataset]. https://datasetcatalog.nlm.nih.gov/dataset?q=0002085531
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    Dataset updated
    Mar 4, 2025
    Authors
    Guo, Qi; Yang, Xiaoming; Guan, Jianliang; Yu, Pengfei; Chen, Guohua
    Description

    This paper examines the spatial distribution pattern and influencing factors of Martial Arts Schools (MASs) based on Baidu map data and Geographic Information System (GIS) in China. Using python to obtain the latitude and longitude data of the MASs through Baidu Map API, and with the help of ArcGIS (10.7) to coordinate information presented on the map of China. By harnessing the geographic latitude and longitude data for 492 MASs across 31 Provinces in China mainland as of May 2024, this study employs a suite of analytical tools including nearest neighbor analysis, kernel density estimation, the disequilibrium index, spatial autocorrelation, and geographically weighted regression analysis within the ArcGIS environment, to graphically delineate the spatial distribution nuances of MASs. The investigation draws upon variables such as martial arts boxings, Wushu hometowns, intangible cultural heritage boxings of Wushu, population education level, Per capita disposable income, and population density to elucidate the spatial distribution idiosyncrasies of MASs. (1) The spatial analytical endeavor unveiled a Moran’s I value of 0.172, accompanied by a Z-score of 1.75 and a P-value of 0.079, signifying an uneven and clustered distribution pattern predominantly concentrated in provinces such as Shandong, Henan, Hebei, Hunan, and Sichuan. (2) The delineation of MASs exhibited a prominent high-density core centered around Shandong, flanked by secondary high-density clusters with Hunan and Sichuan at their heart. (3) Amongst the array of variables dissected to explain the spatial distribution traits, the explicative potency of ‘martial arts boxings’, ‘Wushu hometowns’, ‘intangible cultural heritage boxings of Wushu’, ‘population education level’, ‘Per capita disposable income’, and ‘population density’ exhibited a descending trajectory, whilst ‘educational level of the populace’ inversely correlated with the geographical dispersion of MASs. (4) The entrenched regional cultural ethos significantly impacts the spatial layout of martial arts institutions, endowing them with distinct regional characteristics.

  14. Characteristics of participants in largest components of the sociospatial...

    • plos.figshare.com
    xls
    Updated Jun 1, 2023
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    James J. Logan; Ann M. Jolly; Justine I. Blanford (2023). Characteristics of participants in largest components of the sociospatial network. [Dataset]. http://doi.org/10.1371/journal.pone.0146915.t001
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    xlsAvailable download formats
    Dataset updated
    Jun 1, 2023
    Dataset provided by
    PLOShttp://plos.org/
    Authors
    James J. Logan; Ann M. Jolly; Justine I. Blanford
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    Characteristics of participants in largest components of the sociospatial network.

  15. Black Bear Range Florida

    • geodata.myfwc.com
    • data2-myfwc.opendata.arcgis.com
    • +1more
    Updated Jan 1, 2021
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    Florida Fish and Wildlife Conservation Commission (2021). Black Bear Range Florida [Dataset]. https://geodata.myfwc.com/datasets/black-bear-range-florida/about
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    Dataset updated
    Jan 1, 2021
    Dataset authored and provided by
    Florida Fish and Wildlife Conservation Commissionhttp://myfwc.com/
    Area covered
    Description

    This shapefile contains four levels of occurrence (frequent, common, occasional, and rare range) for the Florida black bear (Ursus americanus floridanus) throughout the state of Florida. Range extent and levels of occurrence were created using research, management, and public-generated location data of black bears from 2009-2018. The four levels of occurrence were estimated by 90% kernel density estimator (KDE) isopleth (range of frequent occurrence), 97.5% KDE isopleth (common), concave hull model (occasional), and the remainder of Florida (rare).

  16. f

    Indicators and calculation formulas for analyzing factors affecting the...

    • figshare.com
    xls
    Updated May 30, 2025
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    Qiuju Mao; Liang Xie; Lai Fan (2025). Indicators and calculation formulas for analyzing factors affecting the spatial distribution of traditional villages. [Dataset]. http://doi.org/10.1371/journal.pone.0324275.t002
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    xlsAvailable download formats
    Dataset updated
    May 30, 2025
    Dataset provided by
    PLOS ONE
    Authors
    Qiuju Mao; Liang Xie; Lai Fan
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    Indicators and calculation formulas for analyzing factors affecting the spatial distribution of traditional villages.

  17. PLOS_One_Minimal_Dataset.xlsx.

    • plos.figshare.com
    xlsx
    Updated Jun 1, 2023
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    Jacqueline W. Curtis (2023). PLOS_One_Minimal_Dataset.xlsx. [Dataset]. http://doi.org/10.1371/journal.pone.0179331.s001
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    xlsxAvailable download formats
    Dataset updated
    Jun 1, 2023
    Dataset provided by
    PLOShttp://plos.org/
    Authors
    Jacqueline W. Curtis
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    The records listed in this file can be accessed online: http://online.akronohio.gov/apdonline/reportlookup/EULA.aspx?referrer=ReportLookup. (XLSX)

  18. Regional climatic and economic indicators at the county level used for...

    • plos.figshare.com
    application/x-rar
    Updated May 30, 2025
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    Qiuju Mao; Liang Xie; Lai Fan (2025). Regional climatic and economic indicators at the county level used for contextual analysis. [Dataset]. http://doi.org/10.1371/journal.pone.0324275.s002
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    application/x-rarAvailable download formats
    Dataset updated
    May 30, 2025
    Dataset provided by
    PLOShttp://plos.org/
    Authors
    Qiuju Mao; Liang Xie; Lai Fan
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    Regional climatic and economic indicators at the county level used for contextual analysis.

  19. Protocol for identifying and managing point-in-polygon aggregation...

    • figshare.com
    xls
    Updated May 31, 2023
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    Jacqueline W. Curtis (2023). Protocol for identifying and managing point-in-polygon aggregation uncertainty. [Dataset]. http://doi.org/10.1371/journal.pone.0179331.t003
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    xlsAvailable download formats
    Dataset updated
    May 31, 2023
    Dataset provided by
    PLOShttp://plos.org/
    Authors
    Jacqueline W. Curtis
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Description

    Protocol for identifying and managing point-in-polygon aggregation uncertainty.

  20. a

    Wastewater Infrastructure Indicator- NBEP2017 (geodatabase)

    • arc-gis-hub-home-arcgishub.hub.arcgis.com
    • narragansett-bay-estuary-program-nbep.hub.arcgis.com
    Updated May 23, 2020
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    NBEP_GIS (2020). Wastewater Infrastructure Indicator- NBEP2017 (geodatabase) [Dataset]. https://arc-gis-hub-home-arcgishub.hub.arcgis.com/datasets/e5ce49017c0b4844b5ca8a19f4f87f17
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    Dataset updated
    May 23, 2020
    Dataset authored and provided by
    NBEP_GIS
    Description

    This geodatabase contains data from the 2017 State of Narragansett Bay and Its Watershed Technical Report (nbep.org), Chapter 7: "Wastewater Infrastructure." Sewered areas in the watersheds of Narragansett Bay, Little Narragansett Bay, and Southwest Coastal Ponds were compiled from RIGIS, CT DEEP, and a variety of different sources in Massachusetts. Analysis of onsite wastewater treatment system (OWTS) density relied on estimation based on building data outside sewered areas that were derived from E-911 Sites in Rhode Island (RIGIS) and Building Structures (2-D) in Massachusetts (MassGIS). Buildings were then used in kernel density analysis to estimate high density areas. Tables summarize the number of buildings within and outside sewered areas and the area (in acres) and percent area of sewered areas and estimated high density onsite wastewater treatment. High density areas were defined as clusters estimated to be 90 percent or higher outside of sewered areas.

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Canadian Parks and Wilderness Society (2022). Kernel Density Analyses of Coral and Sponge Catches in Identification of Significant Benthic Areas, Atlantic Canada [Dataset]. https://data-with-cpaws-nl.hub.arcgis.com/maps/455cdaa5942a41d495f5782ccb8ffdc5

Kernel Density Analyses of Coral and Sponge Catches in Identification of Significant Benthic Areas, Atlantic Canada

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Dataset updated
May 13, 2022
Dataset authored and provided by
Canadian Parks and Wilderness Society
License

Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
License information was derived automatically

Area covered
Description

Original data can be downloaded from here. Another online version of the data can be found HERE.This version presented and hosted by CPAWS-NL allows for data extraction and analysis within ArcGIS Online Map Viewer."Kernel density estimation (KDE) utilizes spatially explicit data to model the distribution of a variable of interest. It is a simple non-parametric neighbor-based smoothing function that relies on few assumptions about the structure of the observed data. It has been used in ecology to identify hotspots, that is, areas of relatively high biomass/abundance, and in 2010 was used by Fisheries and Oceans Canada to delineate significant concentrations of corals and sponges. The same approach has been used successfully in the Northwest Atlantic Fisheries Organization (NAFO) Regulatory Area. Here, we update the previous analyses with the catch records from up to 5 additional years of trawl survey data from Eastern Canada, including the Gulf of St. Lawrence. We applied kernel density estimation to create a modelled biomass surface for each of sponges, small and large gorgonian corals, and sea pens, and applied an aerial expansion method to identify significant concentrations of theses taxa. We compared our results to those obtained previously and provided maps of significant concentrations as well as point data co-ordinates for catches above the threshold values used to construct the significant area polygons. The borders of the polygons can be refined using knowledge of null catches and species distribution models of species presence/absence and/or biomass." (DOI: 10.17632/dtk86rjm86.2)

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