{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["005:18"], "contactPoint": {"fn": "Smith, Lincoln", "hasEmail": "mailto:Link.smith@usda.gov"}, "description": "<p>We monitored populations of the stem weevil, <em>Mecinus janthiniformis</em>, the invasive alien weed Dalmatian toadflax (<em>Linaria dalmatica</em>) and other vegetation to document the impact of using <em>M. janthiniformis</em> as a biological control agent of <em>L. dalmatica</em>.  Weevils were released in 2008 and again in 2014 after a wild fire.  The results document increases and spread of weevil populations, decrease in Dalmatian toadflax and changes in cover of some vegetation classes. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Consolidated data dictionary.</p> <p>File Name: consolidated_HV_meta.csv</p><p>Resource Description: Description of variables in Condensed_HV data file</p><p>Resource Software Recommended: Microsoft Excel,url: <a href=\"http://www.microsoft.com\">http://www.microsoft.com</a> </p></li><br><li><p>Resource Title: Consolidated data.</p> <p>File Name: consolidated_HV.csv</p><p>Resource Description: Condensed data for each site by year for plant size, weevil density, vegetation cover and meteorological data, 2008-2019.</p><p>Resource Software Recommended: Microsoft Excel,url: <a href=\"http://www.microsoft.com\">http://www.microsoft.com</a> </p></li><br><li><p>Resource Title: Cover_2008 data dictionary.</p> <p>File Name: cover_2008_HV_meta.csv</p><p>Resource Description: description of variables in the file cover_2008_HV</p><p>Resource Software Recommended: Microsoft Excel,url: <a href=\"http://www.microsoft.com\">http://www.microsoft.com</a> </p></li><br><li><p>Resource Title: vegetation cover 2008.</p> <p>File Name: cover_2008_HV.csv</p><p>Resource Description: vegetation cover 2008-2011</p><p>Resource Software Recommended: Microsoft Excel,url: <a href=\"http://www.microsoft.com\">http://www.microsoft.com</a> </p></li><br><li><p>Resource Title: vegetation cover 2013 data dictionary.</p> <p>File Name: cover_2013_HV_meta.csv</p><p>Resource Description: description of variables in the file cover_2013_HV, which contains vegetation cover 2013-2019</p></li><br><li><p>Resource Title: vegetation cover 2013.</p> <p>File Name: cover_2013_HV.csv</p><p>Resource Description: vegetation cover 2013-2019</p><p>Resource Software Recommended: Microsoft Excel,url: <a href=\"http://www.microsoft.com\">http://www.microsoft.com</a> </p></li><br><li><p>Resource Title: dissections 2009 data dictionary.</p> <p>File Name: dissections_2009_HV_meta.csv</p><p>Resource Description: Description of variables in the file dissections_2009_HV, containing dissections of toadflax stems 2009-2011</p><p>Resource Software Recommended: Microsoft Excel,url: <a href=\"http://www.microsoft.com\">http://www.microsoft.com</a> </p></li><br><li><p>Resource Title: dissections 2009-2011.</p> <p>File Name: dissections_2009_HV.csv</p><p>Resource Description: Data from dissection of toadflax stems 2009-2011</p><p>Resource Software Recommended: Microsoft Excel,url: <a href=\"http://www.microsoft.com\">http://www.microsoft.com</a> </p></li><br><li><p>Resource Title: dissections 2012 data dictionary.</p> <p>File Name: dissections_2012_HV_meta.csv</p><p>Resource Description: description of variables in the file dissections_2012_HV, containing data from dissections of toadflax stems 2012-2019</p></li><br><li><p>Resource Title: dissections 2012-2019.</p> <p>File Name: dissections_2012_HV.csv</p><p>Resource Description: data from dissection of toadflax stems 2012-2019</p><p>Resource Software Recommended: Microsoft Excel,url: <a href=\"http://www.microsoft.com\">http://www.microsoft.com</a> </p></li><br><li><p>Resource Title: stem_counts data dictionary.</p> <p>File Name: stem_counts_HV_meta.csv</p><p>Resource Description: description of variables in the file stem_counts_HV, which contains data on number of toadflax stems in 25 x 50 cm quadrats, 2008-2013</p><p>Resource Software Recommended: Microsoft Excel,url: <a href=\"http://www.microsoft.com\">http://www.microsoft.com</a> </p></li><br><li><p>Resource Title: stem_counts.</p> <p>File Name: stem_counts_HV.csv</p><p>Resource Description: Number of toadflax stems in 25 x 50 cm quadrats, 2008-2013</p><p>Resource Software Recommended: Microsoft Excel,url: <a href=\"http://www.microsoft.com\">http://www.microsoft.com</a> </p></li><br><li><p>Resource Title: stem_height data dictionary.</p> <p>File Name: stem_height_HV_meta.csv</p><p>Resource Description: description of variables in the file stem_height_HV.csv, which contains data on height of live Linaria dalmatica stems, 2008-2019</p><p>Resource Software Recommended: Microsoft Excel,url: <a href=\"http://www.microsoft.com\">http://www.microsoft.com</a> </p></li><br><li><p>Resource Title: stem_height.</p> <p>File Name: stem_height_HV.csv</p><p>Resource Description: height of live stems of Linaria dalmatica, 2008-2019</p><p>Resource Software Recommended: Microsoft Excel,url: <a href=\"http://www.microsoft.com\">http://www.microsoft.com</a> </p></li></ul><p></p>", "distribution": [{"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369542", "format": "csv", "mediaType": "text/plain", "title": "consolidated_HV_meta.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369545", "format": "csv", "mediaType": "text/plain", "title": "consolidated_HV.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369548", "format": "csv", "mediaType": "text/plain", "title": "cover_2008_HV_meta.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369551", "format": "csv", "mediaType": "text/plain", "title": "cover_2008_HV.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369554", "format": "csv", "mediaType": "text/plain", "title": "cover_2013_HV_meta.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369557", "format": "csv", "mediaType": "text/plain", "title": "cover_2013_HV.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369560", "format": "csv", "mediaType": "text/plain", "title": "dissections_2009_HV_meta.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369563", "format": "csv", "mediaType": "text/plain", "title": "dissections_2009_HV.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369566", "format": "csv", "mediaType": "text/plain", "title": "dissections_2012_HV_meta.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369569", "format": "csv", "mediaType": "text/plain", "title": "dissections_2012_HV.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369572", "format": "csv", "mediaType": "text/plain", "title": "stem_counts_HV_meta.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369575", "format": "csv", "mediaType": "text/plain", "title": "stem_counts_HV.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369578", "format": "csv", "mediaType": "text/plain", "title": "stem_height_HV_meta.csv"}, {"@type": "dcat:Distribution", "downloadURL": "https://ndownloader.figshare.com/files/43369581", "format": "csv", "mediaType": "text/plain", "title": "stem_height_HV.csv"}], "identifier": "10.15482/USDA.ADC/1522564", "keyword": ["ARS", "Dalmatian toadflax", "Linaria dalmatica", "Mecinus janthiniformis", "NP304", "biological control", "data.gov", "invasive alien plant"], "license": "https://www.usa.gov/publicdomain/label/1.0/", "modified": "2025-11-21", "programCode": ["005:040"], "publisher": {"@type": "org:Organization", "name": "Agricultural Research Service"}, "spatial": "{\"type\": \"Point\", \"coordinates\": [-118.89994, 34.788891]}", "temporal": "2008-05-19/2019-05-08", "title": "Data from: Release and establishment of the weevil Mecinus janthiniformis for biological control of Dalmatian toadflax in southern California"}