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This data contains the height of shrubs found along transects on the south facing slopes of Santa Cruz Island, CA. It was used in the analysis for the Manuspcript "Long-term impacts of exotic grazer removal on native shrub recovery, Santa Cruz Island, California". These sites were sampled in 2004 and 2016 to gain a longer term view on native shrub reestablishment into exotic grasslands after exotic grazer removal.
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This data contains the location of transects on the south facing slopes of Santa Cruz Island, CA that were used to collect percent cover and shrub abundance data. It was used in the analysis for the Manuspcript "Long-term impacts of exotic grazer removal on native shrub recovery, Santa Cruz Island, California". These same transects were sampled in 2004 and 2016 to gain a longer term view on native shrub reestablishment into exotic grasslands after exotic grazer removal.
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Data presented are results of surveys for California gnatcatchers and vegetation sampling conducted in 2015, 2016, and 2020 to address two inter-related questions: (1) How have gnatcatchers and their habitat recovered in areas burned by wildfires in 2003, 2007, and 2014?, and (2) What is the current regional occupancy of gnatcatchers throughout their southern California range? Data for the post-fire study were collected in 2015, 2016, and 2020, while the regional occupancy survey was conducted in 2016, and 2020. In 2015, gnatcatcher occupancy as a function of fire history was derived from 324 points in the following fire categories: 2003-2006 (106 points), 2007-2010 (111 points), and 2011-2014 (107 points). In 2016,...
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This data includes data and metadata of (1) the percent cover of all species found along transects on the south facing slopes of Santa Cruz Island, CA (2) the height of all shrub individuals on transects on the south facing slopes of Santa Cruz Island, CA and (3) location data of on the south facing slopes of Santa Cruz Island, CA. Data were used in the analysis for the Manuspcript "Long-term impacts of exotic grazer removal on native shrub recovery, Santa Cruz Island, California". These sites were sampled in 2004 and 2016 to gain a longer term view on native shrub reestablishment into exotic grasslands after exotic grazer removal.
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This data contains the percent cover of all species found along transect on the south facing slopes of Santa Cruz Island, CA. It was used in the analysis for the Manuspcript "Long-term impacts of exotic grazer removal on native shrub recovery, Santa Cruz Island, California". These sites were sampled in 2004 and 2016 to gain a longer term view on native shrub reestablishment into exotic grasslands after exotic grazer removal.
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Land cover/vegetation data produced for the Hopper Mountain NWR complex Comprehensive Conservation Plan in 2011. Process steps include the following: Aerial photography from the National Agricultural Imagery Program (NAIP) was acquired in 2010 and was used as the base for image classification. The NAIP image was clipped to a buffered area around the refuge and then segmented at multiple scales to divide the imagery into thousands of homogenous polygons. Statistics were then calculated for each segmented piece of imagery and classes were created based on these image statistics. Statistics included image spectral values for each of the four NAIP bands, the Normalized Difference Vegetation Index, and several texture-based...


    map background search result map search result map Vegetation and Land Cover, Hopper Mountain National Wildlife Refuge Channel Island Grazer Removal Data 2004-2016 Percent cover of plants on south facing slopes of Santa Cruz Island, CA, in 2004 and 2016 Height of shrubs on south facing slopes of Santa Cruz Island, CA, in 2004 and 2016 Location of transects on south facing slopes of Santa Cruz Island, CA, in 2004 and 2016 Rangewide Occupancy and Post-Fire Recovery of California Gnatcatchers in Southern California, 2020 Vegetation and Land Cover, Hopper Mountain National Wildlife Refuge Channel Island Grazer Removal Data 2004-2016 Percent cover of plants on south facing slopes of Santa Cruz Island, CA, in 2004 and 2016 Location of transects on south facing slopes of Santa Cruz Island, CA, in 2004 and 2016 Height of shrubs on south facing slopes of Santa Cruz Island, CA, in 2004 and 2016 Rangewide Occupancy and Post-Fire Recovery of California Gnatcatchers in Southern California, 2020