Endangered Cape Sable Seaside Sparrow Survival
We investigated survival for male, female, and first-year Cape Sable seaside sparrows (Ammodramus maritimus mirabilis, hereafter sparrows), a federally endangered bird restricted to the Florida Everglades, USA. Accurate estimates of survival are critical to improve management decisions and populatio...
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Veröffentlicht in: | The Journal of wildlife management 2009-05, Vol.73 (4), p.530-537 |
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container_title | The Journal of wildlife management |
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creator | Boulton, Rebecca L Lockwood, Julie L Davis, Michelle J Pedziwilk, Artur Boadway, Kelly A Boadway, Joshua J. T Okines, David Pimm, Stuart L |
description | We investigated survival for male, female, and first-year Cape Sable seaside sparrows (Ammodramus maritimus mirabilis, hereafter sparrows), a federally endangered bird restricted to the Florida Everglades, USA. Accurate estimates of survival are critical to improve management decisions and population estimates for this and other threatened species. We used Program MARK to evaluate effects of age, sex, population membership, temporal variation, and ground-water levels on annual survival from mark–recapture data collected across 3 sparrow populations from 1997 to 2007. We found little evidence that annual survival rates differed between the populations or across ground-water levels, but we found high variability between years for both adult and juvenile survival. Our results revealed female sparrows experienced 14–19% lower survival than males. Sparrows experienced much lower survival during their first year of life and were short-lived (2–3 yr). Our results highlight sparrows' susceptibility to population declines and suggest that management actions aimed at increasing survival may be effective for this species' management. |
doi_str_mv | 10.2193/2007-467 |
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T ; Okines, David ; Pimm, Stuart L</creator><creatorcontrib>Boulton, Rebecca L ; Lockwood, Julie L ; Davis, Michelle J ; Pedziwilk, Artur ; Boadway, Kelly A ; Boadway, Joshua J. T ; Okines, David ; Pimm, Stuart L</creatorcontrib><description>We investigated survival for male, female, and first-year Cape Sable seaside sparrows (Ammodramus maritimus mirabilis, hereafter sparrows), a federally endangered bird restricted to the Florida Everglades, USA. Accurate estimates of survival are critical to improve management decisions and population estimates for this and other threatened species. We used Program MARK to evaluate effects of age, sex, population membership, temporal variation, and ground-water levels on annual survival from mark–recapture data collected across 3 sparrow populations from 1997 to 2007. We found little evidence that annual survival rates differed between the populations or across ground-water levels, but we found high variability between years for both adult and juvenile survival. Our results revealed female sparrows experienced 14–19% lower survival than males. Sparrows experienced much lower survival during their first year of life and were short-lived (2–3 yr). Our results highlight sparrows' susceptibility to population declines and suggest that management actions aimed at increasing survival may be effective for this species' management.</description><identifier>ISSN: 0022-541X</identifier><identifier>EISSN: 1937-2817</identifier><identifier>DOI: 10.2193/2007-467</identifier><identifier>CODEN: JWMAA9</identifier><language>eng</language><publisher>Oxford, UK: The Wildlife Society</publisher><subject>age structure ; age-specific ; Ammodramus maritimus mirabilis ; Animal behavior ; Birds ; Breeding seasons ; Ecosystems ; Endangered animals ; endangered species ; Everglades ; Female animals ; Females ; Floods ; Florida Everglades ; gender differences ; Groundwater levels ; Management and Conservation ; mark-recapture ; marshes ; National parks ; Native species ; Population ; Population decline ; Population estimates ; population size ; Prairies ; Sables ; seaside sparrow ; sex differences ; Sparrows ; Studies ; Survival ; Survival rates ; temporal variation ; Threatened species ; viability ; water levels ; water table ; wild birds ; Wildlife management ; Young animals</subject><ispartof>The Journal of wildlife management, 2009-05, Vol.73 (4), p.530-537</ispartof><rights>Copyright 2009 The Wildlife Society</rights><rights>2009 The Wildlife Society</rights><rights>Copyright Allen Press Publishing Services May 2009</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b4382-e74907fab51fb3a6065ed8588c9813d20b5b0b4a5f2ca4342bd734c1b005131e3</citedby><cites>FETCH-LOGICAL-b4382-e74907fab51fb3a6065ed8588c9813d20b5b0b4a5f2ca4342bd734c1b005131e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/40208402$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/40208402$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,1411,27903,27904,45553,45554,57995,58228</link.rule.ids></links><search><creatorcontrib>Boulton, Rebecca L</creatorcontrib><creatorcontrib>Lockwood, Julie L</creatorcontrib><creatorcontrib>Davis, Michelle J</creatorcontrib><creatorcontrib>Pedziwilk, Artur</creatorcontrib><creatorcontrib>Boadway, Kelly A</creatorcontrib><creatorcontrib>Boadway, Joshua J. T</creatorcontrib><creatorcontrib>Okines, David</creatorcontrib><creatorcontrib>Pimm, Stuart L</creatorcontrib><title>Endangered Cape Sable Seaside Sparrow Survival</title><title>The Journal of wildlife management</title><description>We investigated survival for male, female, and first-year Cape Sable seaside sparrows (Ammodramus maritimus mirabilis, hereafter sparrows), a federally endangered bird restricted to the Florida Everglades, USA. Accurate estimates of survival are critical to improve management decisions and population estimates for this and other threatened species. We used Program MARK to evaluate effects of age, sex, population membership, temporal variation, and ground-water levels on annual survival from mark–recapture data collected across 3 sparrow populations from 1997 to 2007. We found little evidence that annual survival rates differed between the populations or across ground-water levels, but we found high variability between years for both adult and juvenile survival. Our results revealed female sparrows experienced 14–19% lower survival than males. Sparrows experienced much lower survival during their first year of life and were short-lived (2–3 yr). Our results highlight sparrows' susceptibility to population declines and suggest that management actions aimed at increasing survival may be effective for this species' management.</description><subject>age structure</subject><subject>age-specific</subject><subject>Ammodramus maritimus mirabilis</subject><subject>Animal behavior</subject><subject>Birds</subject><subject>Breeding seasons</subject><subject>Ecosystems</subject><subject>Endangered animals</subject><subject>endangered species</subject><subject>Everglades</subject><subject>Female animals</subject><subject>Females</subject><subject>Floods</subject><subject>Florida Everglades</subject><subject>gender differences</subject><subject>Groundwater levels</subject><subject>Management and Conservation</subject><subject>mark-recapture</subject><subject>marshes</subject><subject>National parks</subject><subject>Native species</subject><subject>Population</subject><subject>Population decline</subject><subject>Population estimates</subject><subject>population size</subject><subject>Prairies</subject><subject>Sables</subject><subject>seaside sparrow</subject><subject>sex differences</subject><subject>Sparrows</subject><subject>Studies</subject><subject>Survival</subject><subject>Survival rates</subject><subject>temporal variation</subject><subject>Threatened species</subject><subject>viability</subject><subject>water levels</subject><subject>water table</subject><subject>wild birds</subject><subject>Wildlife management</subject><subject>Young animals</subject><issn>0022-541X</issn><issn>1937-2817</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp10EtLAzEQB_AgCtYH-AXE4kG8rE7e6VFqrUpVcBW9hWQ3K1vXTU1aH9_elBUFwcsMIT8mmT9COxiOCB7QYwIgMybkCuqlo8yIwnIV9QAIyTjDj-toI8YpAMVYiR46GrWlaZ9ccGV_aGaunxvbpOpMrMvUZyYE_97PF-GtfjPNFlqrTBPd9nffRPdno7vheTa5GV8MTyaZZVSRzEk2AFkZy3FlqREguCsVV6oYKExLApZbsMzwihSGUUZsKSkrsAXgmGJHN9FBN3cW_OvCxbl-qWPhmsa0zi-iJhgLMZAswf0_cOoXoU1_0yTNTXuCSOiwQ0XwMQZX6VmoX0z41Bj0MjW9TE2n1BLNOvpeN-7zX6cvH67GjJHkdzs_jXMffjwDAiqV33l1nLuPn3sTnnV6TXL9cD3W6hRoPsxv9WPye52vjNfmKdRR3-cEMAUsqFRc_EZja-9b9_8qXyxXlxM</recordid><startdate>200905</startdate><enddate>200905</enddate><creator>Boulton, Rebecca L</creator><creator>Lockwood, Julie L</creator><creator>Davis, Michelle J</creator><creator>Pedziwilk, Artur</creator><creator>Boadway, Kelly A</creator><creator>Boadway, Joshua J. T</creator><creator>Okines, David</creator><creator>Pimm, Stuart L</creator><general>The Wildlife Society</general><general>Blackwell Publishing Ltd</general><scope>FBQ</scope><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7SN</scope><scope>7ST</scope><scope>7T7</scope><scope>7U6</scope><scope>7U9</scope><scope>7X2</scope><scope>7XB</scope><scope>88A</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H94</scope><scope>HCIFZ</scope><scope>LK8</scope><scope>M0K</scope><scope>M2O</scope><scope>M2P</scope><scope>M7N</scope><scope>M7P</scope><scope>MBDVC</scope><scope>P64</scope><scope>PADUT</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>R05</scope></search><sort><creationdate>200905</creationdate><title>Endangered Cape Sable Seaside Sparrow Survival</title><author>Boulton, Rebecca L ; Lockwood, Julie L ; Davis, Michelle J ; Pedziwilk, Artur ; Boadway, Kelly A ; Boadway, Joshua J. 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T</au><au>Okines, David</au><au>Pimm, Stuart L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Endangered Cape Sable Seaside Sparrow Survival</atitle><jtitle>The Journal of wildlife management</jtitle><date>2009-05</date><risdate>2009</risdate><volume>73</volume><issue>4</issue><spage>530</spage><epage>537</epage><pages>530-537</pages><issn>0022-541X</issn><eissn>1937-2817</eissn><coden>JWMAA9</coden><abstract>We investigated survival for male, female, and first-year Cape Sable seaside sparrows (Ammodramus maritimus mirabilis, hereafter sparrows), a federally endangered bird restricted to the Florida Everglades, USA. Accurate estimates of survival are critical to improve management decisions and population estimates for this and other threatened species. We used Program MARK to evaluate effects of age, sex, population membership, temporal variation, and ground-water levels on annual survival from mark–recapture data collected across 3 sparrow populations from 1997 to 2007. We found little evidence that annual survival rates differed between the populations or across ground-water levels, but we found high variability between years for both adult and juvenile survival. Our results revealed female sparrows experienced 14–19% lower survival than males. Sparrows experienced much lower survival during their first year of life and were short-lived (2–3 yr). Our results highlight sparrows' susceptibility to population declines and suggest that management actions aimed at increasing survival may be effective for this species' management.</abstract><cop>Oxford, UK</cop><pub>The Wildlife Society</pub><doi>10.2193/2007-467</doi><tpages>8</tpages></addata></record> |
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source | Jstor Complete Legacy; Wiley Online Library Journals Frontfile Complete |
subjects | age structure age-specific Ammodramus maritimus mirabilis Animal behavior Birds Breeding seasons Ecosystems Endangered animals endangered species Everglades Female animals Females Floods Florida Everglades gender differences Groundwater levels Management and Conservation mark-recapture marshes National parks Native species Population Population decline Population estimates population size Prairies Sables seaside sparrow sex differences Sparrows Studies Survival Survival rates temporal variation Threatened species viability water levels water table wild birds Wildlife management Young animals |
title | Endangered Cape Sable Seaside Sparrow Survival |
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