Mitochondrial DNA Variation and the Taxonomic Status of the Large-Billed Savannah Sparrow
The Savannah Sparrow (Passerculus sandwichensis ) is widely distributed in North America. The species includes several phenotypically distinct and geographically restricted forms, some of which were once considered species, as well as a more "typical" or familiar form that is found through...
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Veröffentlicht in: | The Condor (Los Angeles, Calif.) Calif.), 1991-11, Vol.93 (4), p.1016-1019 |
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creator | Zink, Robert M. Dittmann, Donna L. Cardiff, Steven W. Rising, James D. |
description | The Savannah Sparrow (Passerculus sandwichensis ) is widely distributed in North America. The species includes several phenotypically distinct and geographically restricted forms, some of which were once considered species, as well as a more "typical" or familiar form that is found throughout much of the continent. We assessed mitochondrial DNA (mtDNA) differentiation between one of the divergent forms, the large-billed Savannah Sparrow (P. s. rostratus ), and representatives of more "typical" forms of the species. Although van Rossem (1947) proposed that Savannah Sparrow morphology changed gradually from typical (interior North American forms) to large-billed forms (coastal Mexican forms), we suggest that the large-billed Savannah Sparrow is a distinct taxon and not merely the end-point of a gradual cline. |
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The species includes several phenotypically distinct and geographically restricted forms, some of which were once considered species, as well as a more "typical" or familiar form that is found throughout much of the continent. We assessed mitochondrial DNA (mtDNA) differentiation between one of the divergent forms, the large-billed Savannah Sparrow (P. s. rostratus ), and representatives of more "typical" forms of the species. Although van Rossem (1947) proposed that Savannah Sparrow morphology changed gradually from typical (interior North American forms) to large-billed forms (coastal Mexican forms), we suggest that the large-billed Savannah Sparrow is a distinct taxon and not merely the end-point of a gradual cline.</description><identifier>ISSN: 0010-5422</identifier><identifier>EISSN: 1938-5129</identifier><identifier>DOI: 10.2307/3247739</identifier><identifier>CODEN: CNDRAB</identifier><language>eng</language><publisher>Santa Clara, CA: Cooper Ornithological Society</publisher><subject>Biological and medical sciences ; Biological taxonomies ; Birds ; Evolution ; Fundamental and applied biological sciences. 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The species includes several phenotypically distinct and geographically restricted forms, some of which were once considered species, as well as a more "typical" or familiar form that is found throughout much of the continent. We assessed mitochondrial DNA (mtDNA) differentiation between one of the divergent forms, the large-billed Savannah Sparrow (P. s. rostratus ), and representatives of more "typical" forms of the species. Although van Rossem (1947) proposed that Savannah Sparrow morphology changed gradually from typical (interior North American forms) to large-billed forms (coastal Mexican forms), we suggest that the large-billed Savannah Sparrow is a distinct taxon and not merely the end-point of a gradual cline.</description><subject>Biological and medical sciences</subject><subject>Biological taxonomies</subject><subject>Birds</subject><subject>Evolution</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Genetic variation</subject><subject>Haplotypes</subject><subject>Mitochondrial DNA</subject><subject>Ornithology</subject><subject>Short Communications</subject><subject>Sparrows</subject><subject>Species</subject><subject>Taxa</subject><subject>Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</subject><issn>0010-5422</issn><issn>1938-5129</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1991</creationdate><recordtype>article</recordtype><recordid>eNp1kMtOwzAQRS0EEqUgfsELBKuAX0nsZSlPqcCiBYlVNHVs6iqNi-3y-HsCrRAbVjNzdeYsLkKHlJwyTsozzkRZcrWFelRxmeWUqW3UI4SSLBeM7aK9GOeku5lgPfR855LXM9_WwUGDL-4H-Am6NTnfYmhrnGYGT-DDt37hNB4nSKuIvf3JRxBeTHbumsbUeAxv0LYww-MlhODf99GOhSaag83so8ery8nwJhs9XN8OB6NMc65SVhgQZKqYnXItcsuooFpKKqXU1BoDdlpbLRTQghYFFFqruiRSdHxOmCwU76PjtXcZ_OvKxFQtXNSmaaA1fhWr7pHzgpUdeLIGdfAxBmOrZXALCJ8VJdV3ddWmuo482ighamhsgFa7-IvnNJec_sHmMfnwr-0LG1B3zA</recordid><startdate>19911101</startdate><enddate>19911101</enddate><creator>Zink, Robert M.</creator><creator>Dittmann, Donna L.</creator><creator>Cardiff, Steven W.</creator><creator>Rising, James D.</creator><general>Cooper Ornithological Society</general><general>Cooper Ornithological Club</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope><scope>RC3</scope></search><sort><creationdate>19911101</creationdate><title>Mitochondrial DNA Variation and the Taxonomic Status of the Large-Billed Savannah Sparrow</title><author>Zink, Robert M. ; Dittmann, Donna L. ; Cardiff, Steven W. ; Rising, James D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c339t-6ea40b92fb3c45f2141c881888c1feeafbdfc49a16166a6cc9d70842fb5028693</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1991</creationdate><topic>Biological and medical sciences</topic><topic>Biological taxonomies</topic><topic>Birds</topic><topic>Evolution</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Genetic variation</topic><topic>Haplotypes</topic><topic>Mitochondrial DNA</topic><topic>Ornithology</topic><topic>Short Communications</topic><topic>Sparrows</topic><topic>Species</topic><topic>Taxa</topic><topic>Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zink, Robert M.</creatorcontrib><creatorcontrib>Dittmann, Donna L.</creatorcontrib><creatorcontrib>Cardiff, Steven W.</creatorcontrib><creatorcontrib>Rising, James D.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><jtitle>The Condor (Los Angeles, Calif.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zink, Robert M.</au><au>Dittmann, Donna L.</au><au>Cardiff, Steven W.</au><au>Rising, James D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mitochondrial DNA Variation and the Taxonomic Status of the Large-Billed Savannah Sparrow</atitle><jtitle>The Condor (Los Angeles, Calif.)</jtitle><date>1991-11-01</date><risdate>1991</risdate><volume>93</volume><issue>4</issue><spage>1016</spage><epage>1019</epage><pages>1016-1019</pages><issn>0010-5422</issn><eissn>1938-5129</eissn><coden>CNDRAB</coden><abstract>The Savannah Sparrow (Passerculus sandwichensis ) is widely distributed in North America. The species includes several phenotypically distinct and geographically restricted forms, some of which were once considered species, as well as a more "typical" or familiar form that is found throughout much of the continent. We assessed mitochondrial DNA (mtDNA) differentiation between one of the divergent forms, the large-billed Savannah Sparrow (P. s. rostratus ), and representatives of more "typical" forms of the species. Although van Rossem (1947) proposed that Savannah Sparrow morphology changed gradually from typical (interior North American forms) to large-billed forms (coastal Mexican forms), we suggest that the large-billed Savannah Sparrow is a distinct taxon and not merely the end-point of a gradual cline.</abstract><cop>Santa Clara, CA</cop><pub>Cooper Ornithological Society</pub><doi>10.2307/3247739</doi><tpages>4</tpages></addata></record> |
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source | SORA - Searchable Ornithological Research Archive; JSTOR |
subjects | Biological and medical sciences Biological taxonomies Birds Evolution Fundamental and applied biological sciences. Psychology Genetic variation Haplotypes Mitochondrial DNA Ornithology Short Communications Sparrows Species Taxa Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution |
title | Mitochondrial DNA Variation and the Taxonomic Status of the Large-Billed Savannah Sparrow |
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