Landscape Analysis of Adult Florida Panther Habitat
Identifieur interne : 000052 ( Pmc/Checkpoint ); précédent : 000051; suivant : 000053Landscape Analysis of Adult Florida Panther Habitat
Auteurs : Robert A. Frakes [États-Unis] ; Robert C. Belden [États-Unis] ; Barry E. Wood [États-Unis] ; Frederick E. James [États-Unis]Source :
- PLoS ONE [ 1932-6203 ] ; 2015.
Abstract
Historically occurring throughout the southeastern United States, the Florida panther is now restricted to less than 5% of its historic range in one breeding population located in southern Florida. Using radio-telemetry data from 87 prime-aged (≥3 years old) adult panthers (35 males and 52 females) during the period 2004 through 2013 (28,720 radio-locations), we analyzed the characteristics of the occupied area and used those attributes in a random forest model to develop a predictive distribution map for resident breeding panthers in southern Florida. Using 10-fold cross validation, the model was 87.5 % accurate in predicting presence or absence of panthers in the 16,678 km2 study area. Analysis of variable importance indicated that the amount of forests and forest edge, hydrology, and human population density were the most important factors determining presence or absence of panthers. Sensitivity analysis showed that the presence of human populations, roads, and agriculture (other than pasture) had strong negative effects on the probability of panther presence. Forest cover and forest edge had strong positive effects. The median model-predicted probability of presence for panther home ranges was 0.81 (0.82 for females and 0.74 for males). The model identified 5579 km2 of suitable breeding habitat remaining in southern Florida; 1399 km2 (25%) of this habitat is in non-protected private ownership. Because there is less panther habitat remaining than previously thought, we recommend that all remaining breeding habitat in south Florida should be maintained, and the current panther range should be expanded into south-central Florida. This model should be useful for evaluating the impacts of future development projects, in prioritizing areas for panther conservation, and in evaluating the potential impacts of sea-level rise and changes in hydrology.
Url:
DOI: 10.1371/journal.pone.0133044
PubMed: 26222526
PubMed Central: 4519242
Affiliations:
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Wood</name><affiliation wicri:level="2"><nlm:aff id="aff001"><addr-line>U.S. Fish and Wildlife Service, South Florida Ecological Services Office, 1339 20th Street, Vero Beach, Florida, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>U.S. Fish and Wildlife Service, South Florida Ecological Services Office, 1339 20th Street, Vero Beach, Florida</wicri:regionArea><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="James, Frederick E" sort="James, Frederick E" uniqKey="James F" first="Frederick E." last="James">Frederick E. 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Frakes</name><affiliation wicri:level="2"><nlm:aff id="aff001"><addr-line>U.S. Fish and Wildlife Service, South Florida Ecological Services Office, 1339 20th Street, Vero Beach, Florida, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>U.S. Fish and Wildlife Service, South Florida Ecological Services Office, 1339 20th Street, Vero Beach, Florida</wicri:regionArea><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Belden, Robert C" sort="Belden, Robert C" uniqKey="Belden R" first="Robert C." last="Belden">Robert C. Belden</name><affiliation wicri:level="2"><nlm:aff id="aff001"><addr-line>U.S. Fish and Wildlife Service, South Florida Ecological Services Office, 1339 20th Street, Vero Beach, Florida, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>U.S. Fish and Wildlife Service, South Florida Ecological Services Office, 1339 20th Street, Vero Beach, Florida</wicri:regionArea><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="Wood, Barry E" sort="Wood, Barry E" uniqKey="Wood B" first="Barry E." last="Wood">Barry E. Wood</name><affiliation wicri:level="2"><nlm:aff id="aff001"><addr-line>U.S. Fish and Wildlife Service, South Florida Ecological Services Office, 1339 20th Street, Vero Beach, Florida, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>U.S. Fish and Wildlife Service, South Florida Ecological Services Office, 1339 20th Street, Vero Beach, Florida</wicri:regionArea><placeName><region type="state">Floride</region></placeName></affiliation></author><author><name sortKey="James, Frederick E" sort="James, Frederick E" uniqKey="James F" first="Frederick E." last="James">Frederick E. James</name><affiliation wicri:level="2"><nlm:aff id="aff002"><addr-line>National Park Service, South Florida Natural Resources Center, Everglades National Park, Homestead, Florida, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>National Park Service, South Florida Natural Resources Center, Everglades National Park, Homestead, Florida</wicri:regionArea><placeName><region type="state">Floride</region></placeName></affiliation></author></analytic><series><title level="j">PLoS ONE</title><idno type="eISSN">1932-6203</idno><imprint><date when="2015">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Historically occurring throughout the southeastern United States, the Florida panther is now restricted to less than 5% of its historic range in one breeding population located in southern Florida. Using radio-telemetry data from 87 prime-aged (≥3 years old) adult panthers (35 males and 52 females) during the period 2004 through 2013 (28,720 radio-locations), we analyzed the characteristics of the occupied area and used those attributes in a random forest model to develop a predictive distribution map for resident breeding panthers in southern Florida. Using 10-fold cross validation, the model was 87.5 % accurate in predicting presence or absence of panthers in the 16,678 km<sup>2</sup> study area. Analysis of variable importance indicated that the amount of forests and forest edge, hydrology, and human population density were the most important factors determining presence or absence of panthers. Sensitivity analysis showed that the presence of human populations, roads, and agriculture (other than pasture) had strong negative effects on the probability of panther presence. Forest cover and forest edge had strong positive effects. The median model-predicted probability of presence for panther home ranges was 0.81 (0.82 for females and 0.74 for males). The model identified 5579 km<sup>2</sup> of suitable breeding habitat remaining in southern Florida; 1399 km<sup>2</sup> (25%) of this habitat is in non-protected private ownership. Because there is less panther habitat remaining than previously thought, we recommend that all remaining breeding habitat in south Florida should be maintained, and the current panther range should be expanded into south-central Florida. This model should be useful for evaluating the impacts of future development projects, in prioritizing areas for panther conservation, and in evaluating the potential impacts of sea-level rise and changes in hydrology.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Fish, U S" uniqKey="Fish U">U.S. Fish</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Johnson, Dh" uniqKey="Johnson D">DH Johnson</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Belden, Rc" uniqKey="Belden R">RC Belden</name></author><author><name sortKey="Frankenberger, Wb" uniqKey="Frankenberger W">WB Frankenberger</name></author><author><name sortKey="Mcbride, Rt" uniqKey="Mcbride R">RT McBride</name></author><author><name sortKey="Schwikert, St" uniqKey="Schwikert S">ST Schwikert</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Maehr, 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<front><journal-meta><journal-id journal-id-type="nlm-ta">PLoS One</journal-id><journal-id journal-id-type="iso-abbrev">PLoS ONE</journal-id><journal-id journal-id-type="publisher-id">plos</journal-id><journal-id journal-id-type="pmc">plosone</journal-id><journal-title-group><journal-title>PLoS ONE</journal-title></journal-title-group><issn pub-type="epub">1932-6203</issn><publisher><publisher-name>Public Library of Science</publisher-name><publisher-loc>San Francisco, CA USA</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">26222526</article-id><article-id pub-id-type="pmc">4519242</article-id><article-id pub-id-type="doi">10.1371/journal.pone.0133044</article-id><article-id pub-id-type="publisher-id">PONE-D-15-08159</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title>Landscape Analysis of Adult Florida Panther Habitat</article-title><alt-title alt-title-type="running-head">Florida Panther Habitat</alt-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Frakes</surname><given-names>Robert A.</given-names></name><xref ref-type="aff" rid="aff001"><sup>1</sup></xref><xref rid="cor001" ref-type="corresp">*</xref></contrib><contrib contrib-type="author"><name><surname>Belden</surname><given-names>Robert C.</given-names></name><xref ref-type="aff" rid="aff001"><sup>1</sup></xref><xref ref-type="author-notes" rid="currentaff001"><sup>¤</sup></xref></contrib><contrib contrib-type="author"><name><surname>Wood</surname><given-names>Barry E.</given-names></name><xref ref-type="aff" rid="aff001"><sup>1</sup></xref></contrib><contrib contrib-type="author" deceased="yes"><name><surname>James</surname><given-names>Frederick E.</given-names></name><xref ref-type="aff" rid="aff002"><sup>2</sup></xref></contrib></contrib-group><aff id="aff001"><label>1</label><addr-line>U.S. Fish and Wildlife Service, South Florida Ecological Services Office, 1339 20th Street, Vero Beach, Florida, United States of America</addr-line></aff><aff id="aff002"><label>2</label><addr-line>National Park Service, South Florida Natural Resources Center, Everglades National Park, Homestead, Florida, United States of America</addr-line></aff><contrib-group><contrib contrib-type="editor"><name><surname>Mortelliti</surname><given-names>Alessio</given-names></name><role>Editor</role><xref ref-type="aff" rid="edit1"></xref></contrib></contrib-group><aff id="edit1"><addr-line>Fenner School of Environment and Society, AUSTRALIA</addr-line></aff><author-notes><fn fn-type="conflict" id="coi001"><p><bold>Competing Interests: </bold>The authors have declared that no competing interests exist.</p></fn><fn fn-type="con" id="contrib001"><p>Conceived and designed the experiments: RAF RCB. Performed the experiments: RAF. Analyzed the data: RAF RCB BEW FEJ. Wrote the paper: RAF RCB FEJ. GIS analysis: BEW RAF. Hydrological calculations: FEJ.</p></fn><fn fn-type="current-aff" id="currentaff001"><label>¤</label><p>Current address: 22032 SW 15<sup>th</sup> Avenue, Newberry, Florida, United States of America</p></fn><corresp id="cor001">* E-mail: <email>frakesr@comcast.net</email></corresp></author-notes><pub-date pub-type="epub"><day>29</day><month>7</month><year>2015</year></pub-date><pub-date pub-type="collection"><year>2015</year></pub-date><volume>10</volume><issue>7</issue><elocation-id>e0133044</elocation-id><history><date date-type="received"><day>23</day><month>2</month><year>2015</year></date><date date-type="accepted"><day>23</day><month>6</month><year>2015</year></date></history><permissions><license xlink:href="https://creativecommons.org/publicdomain/zero/1.0/"><license-p>This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the <ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/publicdomain/zero/1.0/">Creative Commons CC0</ext-link> public domain dedication</license-p></license></permissions><self-uri content-type="pdf" xlink:type="simple" xlink:href="pone.0133044.pdf"></self-uri><abstract><p>Historically occurring throughout the southeastern United States, the Florida panther is now restricted to less than 5% of its historic range in one breeding population located in southern Florida. Using radio-telemetry data from 87 prime-aged (≥3 years old) adult panthers (35 males and 52 females) during the period 2004 through 2013 (28,720 radio-locations), we analyzed the characteristics of the occupied area and used those attributes in a random forest model to develop a predictive distribution map for resident breeding panthers in southern Florida. Using 10-fold cross validation, the model was 87.5 % accurate in predicting presence or absence of panthers in the 16,678 km<sup>2</sup> study area. Analysis of variable importance indicated that the amount of forests and forest edge, hydrology, and human population density were the most important factors determining presence or absence of panthers. Sensitivity analysis showed that the presence of human populations, roads, and agriculture (other than pasture) had strong negative effects on the probability of panther presence. Forest cover and forest edge had strong positive effects. The median model-predicted probability of presence for panther home ranges was 0.81 (0.82 for females and 0.74 for males). The model identified 5579 km<sup>2</sup> of suitable breeding habitat remaining in southern Florida; 1399 km<sup>2</sup> (25%) of this habitat is in non-protected private ownership. Because there is less panther habitat remaining than previously thought, we recommend that all remaining breeding habitat in south Florida should be maintained, and the current panther range should be expanded into south-central Florida. This model should be useful for evaluating the impacts of future development projects, in prioritizing areas for panther conservation, and in evaluating the potential impacts of sea-level rise and changes in hydrology.</p></abstract><funding-group><funding-statement>The authors received no specific funding for this work.</funding-statement></funding-group><counts><fig-count count="6"></fig-count><table-count count="2"></table-count><page-count count="18"></page-count></counts><custom-meta-group><custom-meta id="data-availability"><meta-name>Data Availability</meta-name><meta-value>All relevant data are within the paper and its Supporting Information files, or at the following URLs: Panther telemetry data: <ext-link ext-link-type="uri" xlink:href="http://ocean.floridamarine.org/TRGIS/Description_Layers_terrestrial.htm">http://ocean.floridamarine.org/TRGIS/Description_Layers_terrestrial.htm</ext-link>; panther annual reports: <ext-link ext-link-type="uri" xlink:href="http://www.floridapanthernet.org/index.php/reports/">http://www.floridapanthernet.org/index.php/reports/</ext-link>.</meta-value></custom-meta></custom-meta-group></article-meta><notes><title>Data Availability</title><p>All relevant data are within the paper and its Supporting Information files, or at the following URLs: Panther telemetry data: <ext-link ext-link-type="uri" xlink:href="http://ocean.floridamarine.org/TRGIS/Description_Layers_terrestrial.htm">http://ocean.floridamarine.org/TRGIS/Description_Layers_terrestrial.htm</ext-link>; panther annual reports: <ext-link ext-link-type="uri" xlink:href="http://www.floridapanthernet.org/index.php/reports/">http://www.floridapanthernet.org/index.php/reports/</ext-link>.</p></notes></front></pmc><affiliations><list><country><li>États-Unis</li></country><region><li>Floride</li></region></list><tree><country name="États-Unis"><region name="Floride"><name sortKey="Frakes, Robert A" sort="Frakes, Robert A" uniqKey="Frakes R" first="Robert A." last="Frakes">Robert A. Frakes</name></region><name sortKey="Belden, Robert C" sort="Belden, Robert C" uniqKey="Belden R" first="Robert C." last="Belden">Robert C. Belden</name><name sortKey="James, Frederick E" sort="James, Frederick E" uniqKey="James F" first="Frederick E." last="James">Frederick E. James</name><name sortKey="Wood, Barry E" sort="Wood, Barry E" uniqKey="Wood B" first="Barry E." last="Wood">Barry E. Wood</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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