LoCoH: Nonparameteric Kernel Methods for Constructing Home Ranges and Utilization Distributions
- Publication Date
- February 14, 2007
- Journal
- PLOS ONE
- Authors
- Wayne M. Getz, Scott Fortmann Roe, Paul C. Cross, Andrew J. Lyons, et al
- Volume
- 2
- Issue
- 2
- Pages
- e207
- DOI
- https://dx.plos.org/10.1371/journal.pone.0000207
- Publisher URL
- http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0000207
- PubMed
- http://www.ncbi.nlm.nih.gov/pubmed/17299587
- PubMed Central
- http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1797616
- Europe PMC
- http://europepmc.org/abstract/MED/17299587
- Web of Science
- 000207444400008
- Scopus
- 34548552085
- Mendeley
- http://www.mendeley.com/research/locoh-nonparameteric-kernel-methods-constructing-home-ranges-utilization-distributions
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Mendeley | Further Information
{"title"=>"LoCoH: Nonparameteric Kernel methods for constructing home ranges and utilization distributions", "type"=>"journal", "authors"=>[{"first_name"=>"Wayne M.", "last_name"=>"Getz", "scopus_author_id"=>"7006533560"}, {"first_name"=>"Scott", "last_name"=>"Fortmann-Roe", "scopus_author_id"=>"25633616400"}, {"first_name"=>"Paul C.", "last_name"=>"Cross", "scopus_author_id"=>"7102027477"}, {"first_name"=>"Andrew J.", "last_name"=>"Lyons", "scopus_author_id"=>"7102912714"}, {"first_name"=>"Sadie J.", "last_name"=>"Ryan", "scopus_author_id"=>"10039124600"}, {"first_name"=>"Christopher C.", "last_name"=>"Wilmers", "scopus_author_id"=>"6603498246"}], "year"=>2007, "source"=>"PLoS ONE", "identifiers"=>{"sgr"=>"34548552085", "pmid"=>"17299587", "pui"=>"352606019", "isbn"=>"10.1371/journal.pone.0000207", "scopus"=>"2-s2.0-34548552085", "doi"=>"10.1371/journal.pone.0000207", "issn"=>"19326203"}, "id"=>"d9143a4c-6c9d-3750-a781-5135f09e8372", "abstract"=>"<p>Parametric kernel methods currently dominate the literature regarding the construction of animal home ranges (HRs) and utilization distributions (UDs). These methods frequently fail to capture the kinds of hard boundaries common to many natural systems. Recently a local convex hull (LoCoH) nonparametric kernel method, which generalizes the minimum convex polygon (MCP) method, was shown to be more appropriate than parametric kernel methods for constructing HRs and UDs, because of its ability to identify hard boundaries (e.g., rivers, cliff edges) and convergence to the true distribution as sample size increases. Here we extend the LoCoH in two ways: “fixed sphere-of-influence,†or <italic>r</italic>-LoCoH (kernels constructed from all points within a fixed radius <italic>r</italic> of each reference point), and an “adaptive sphere-of-influence,†or <italic>a</italic>-LoCoH (kernels constructed from all points within a radius <italic>a</italic> such that the distances of all points within the radius to the reference point sum to a value less than or equal to <italic>a</italic>), and compare them to the original “fixed-number-of-points,†or <italic>k</italic>-LoCoH (all kernels constructed from <italic>k</italic>-1 nearest neighbors of root points). We also compare these nonparametric LoCoH to parametric kernel methods using manufactured data and data collected from GPS collars on African buffalo in the Kruger National Park, South Africa. Our results demonstrate that LoCoH methods are superior to parametric kernel methods in estimating areas used by animals, excluding unused areas (holes) and, generally, in constructing UDs and HRs arising from the movement of animals influenced by hard boundaries and irregular structures (e.g., rocky outcrops). We also demonstrate that <italic>a</italic>-LoCoH is generally superior to <italic>k</italic>- and <italic>r</italic>-LoCoH (with software for all three methods available at <ext-link xmlns:xlink=\"http://www.w3.org/1999/xlink\" ext-link-type=\"uri\" xlink:href=\"http://locoh.cnr.berkeley.edu\" xlink:type=\"simple\">http://locoh.cnr.berkeley.edu</ext-link>).</p>", "link"=>"http://www.mendeley.com/research/locoh-nonparameteric-kernel-methods-constructing-home-ranges-utilization-distributions", "reader_count"=>430, "reader_count_by_academic_status"=>{"Unspecified"=>20, "Professor > Associate Professor"=>12, "Researcher"=>111, "Student > Doctoral Student"=>21, "Student > Ph. D. Student"=>101, "Student > Postgraduate"=>19, "Student > Master"=>89, "Other"=>15, "Student > Bachelor"=>17, "Lecturer"=>3, "Lecturer > Senior Lecturer"=>4, "Professor"=>18}, "reader_count_by_user_role"=>{"Unspecified"=>20, "Professor > Associate Professor"=>12, "Researcher"=>111, "Student > Doctoral Student"=>21, "Student > Ph. D. Student"=>101, "Student > Postgraduate"=>19, "Student > Master"=>89, "Other"=>15, "Student > Bachelor"=>17, "Lecturer"=>3, "Lecturer > Senior Lecturer"=>4, "Professor"=>18}, "reader_count_by_subject_area"=>{"Unspecified"=>27, "Environmental Science"=>84, "Biochemistry, Genetics and Molecular Biology"=>3, "Mathematics"=>1, "Agricultural and Biological Sciences"=>300, "Medicine and Dentistry"=>1, "Veterinary Science and Veterinary Medicine"=>3, "Social Sciences"=>1, "Computer Science"=>1, "Earth and Planetary Sciences"=>9}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>1}, "Social Sciences"=>{"Social Sciences"=>1}, "Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>9}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>300}, "Computer Science"=>{"Computer Science"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>3}, "Mathematics"=>{"Mathematics"=>1}, "Unspecified"=>{"Unspecified"=>27}, "Environmental Science"=>{"Environmental Science"=>84}, "Veterinary Science and Veterinary Medicine"=>{"Veterinary Science and Veterinary Medicine"=>3}}, "reader_count_by_country"=>{"Argentina"=>1, "United States"=>16, "Japan"=>1, "United Kingdom"=>6, "Malaysia"=>1, "Portugal"=>3, "India"=>1, "Spain"=>2, "Russia"=>1, "New Zealand"=>1, "Greece"=>1, "Canada"=>4, "Czech Republic"=>1, "Austria"=>1, "Belgium"=>1, "Norway"=>1, "Brazil"=>8, "South Africa"=>4, "Italy"=>2, "France"=>1, "Germany"=>6}, "group_count"=>13}CrossRef
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Scopus | Further Information
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- {"month"=>"1", "year"=>"2021", "pdf_views"=>"23", "xml_views"=>"0", "html_views"=>"43"}
PMC Usage Stats | Further Information
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- {"month"=>"8", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"1", "full-text"=>"30", "year"=>"2010", "pdf"=>"14", "unique-ip"=>"26", "figure"=>"2", "scanned-summary"=>"0", "supp-data"=>"0"}
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- {"scanned-page-browse"=>"0", "month"=>"11", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"9", "unique-ip"=>"10", "pdf"=>"5", "year"=>"2011", "figure"=>"0", "scanned-summary"=>"0", "supp-data"=>"0"}
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- {"scanned-page-browse"=>"9", "month"=>"3", "cited-by"=>"2", "abstract"=>"0", "full-text"=>"1", "unique-ip"=>"2", "pdf"=>"0", "year"=>"2007", "figure"=>"41", "scanned-summary"=>"29", "supp-data"=>"27"}
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- {"scanned-page-browse"=>"7", "month"=>"11", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"0", "unique-ip"=>"1", "pdf"=>"0", "year"=>"2007", "figure"=>"30", "scanned-summary"=>"22", "supp-data"=>"24"}
- {"month"=>"12", "scanned-page-browse"=>"4", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"0", "year"=>"2007", "pdf"=>"0", "unique-ip"=>"1", "figure"=>"20", "scanned-summary"=>"15", "supp-data"=>"13"}
- {"scanned-page-browse"=>"14", "month"=>"1", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"0", "unique-ip"=>"0", "pdf"=>"0", "year"=>"2008", "figure"=>"45", "scanned-summary"=>"31", "supp-data"=>"31"}
- {"month"=>"2", "scanned-page-browse"=>"10", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"1", "year"=>"2008", "pdf"=>"0", "unique-ip"=>"1", "figure"=>"44", "scanned-summary"=>"32", "supp-data"=>"29"}
- {"scanned-page-browse"=>"11", "month"=>"3", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"1", "unique-ip"=>"0", "pdf"=>"0", "year"=>"2008", "figure"=>"32", "scanned-summary"=>"20", "supp-data"=>"18"}
- {"month"=>"4", "scanned-page-browse"=>"12", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"0", "year"=>"2008", "pdf"=>"0", "unique-ip"=>"7", "figure"=>"47", "scanned-summary"=>"28", "supp-data"=>"26"}
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- {"month"=>"6", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"48", "year"=>"2008", "pdf"=>"8", "unique-ip"=>"33", "figure"=>"2", "scanned-summary"=>"0", "supp-data"=>"0"}
- {"scanned-page-browse"=>"0", "month"=>"7", "cited-by"=>"0", "abstract"=>"1", "full-text"=>"23", "unique-ip"=>"18", "pdf"=>"4", "year"=>"2008", "figure"=>"1", "scanned-summary"=>"0", "supp-data"=>"0"}
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- {"scanned-page-browse"=>"0", "month"=>"9", "cited-by"=>"0", "abstract"=>"2", "full-text"=>"20", "unique-ip"=>"20", "pdf"=>"6", "year"=>"2008", "figure"=>"2", "scanned-summary"=>"0", "supp-data"=>"0"}
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- {"month"=>"4", "scanned-page-browse"=>"0", "cited-by"=>"0", "abstract"=>"0", "full-text"=>"34", "year"=>"2009", "pdf"=>"15", "unique-ip"=>"33", "figure"=>"3", "scanned-summary"=>"0", "supp-data"=>"0"}
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Relative Metric
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