Sexing of Black-tailed Godwits Limosa limosa islandica: a comparison of behavioural, molecular, biometric and field-based techniques
Capsule Biometrics and plumage characteristics can both be used to reliably sex Black-tailed Godwits. Aims To develop methods of sexing Black-tailed Godwits and to validate their relative accuracy. Methods A sample of 84 Black-tailed Godwits was sexed by DNA analysis of feather samples. The biometri...
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| Veröffentlicht in: | Bird study 2006-11, Vol.53 (3), p.193-198 |
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| container_title | Bird study |
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| creator | Gunnarsson, Tómas G. Gill, Jennifer A. Goodacre, Sara L. Gélinaud, Guillaume Atkinson, Philip W. Hewitt, Godfrey M. Potts, Peter M. Sutherland, William J. |
| description | Capsule Biometrics and plumage characteristics can both be used to reliably sex Black-tailed Godwits.
Aims To develop methods of sexing Black-tailed Godwits and to validate their relative accuracy.
Methods A sample of 84 Black-tailed Godwits was sexed by DNA analysis of feather samples. The biometric data and plumage characteristics of these birds were then used to develop protocols for sexing godwits in the field.
Results A discriminant function analysis of biometric data correctly sexed 95% of the DNA-sexed reference sample. Of 808 birds caught throughout the range, 74% could be sexed with this method. Approximately 85% of the reference sample were correctly sexed on three plumage characteristics in the hand. Of 105 birds sexed by DNA or biometrics, 82% were sexed correctly on general impression and shape in the field.
Conclusions For the many species with limited sexual dimorphism, a relatively small sample of accurately sexed birds can provide a means of testing and improving current morphological methods of sexing. |
| doi_str_mv | 10.1080/00063650609461433 |
| format | Article |
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Aims To develop methods of sexing Black-tailed Godwits and to validate their relative accuracy.
Methods A sample of 84 Black-tailed Godwits was sexed by DNA analysis of feather samples. The biometric data and plumage characteristics of these birds were then used to develop protocols for sexing godwits in the field.
Results A discriminant function analysis of biometric data correctly sexed 95% of the DNA-sexed reference sample. Of 808 birds caught throughout the range, 74% could be sexed with this method. Approximately 85% of the reference sample were correctly sexed on three plumage characteristics in the hand. Of 105 birds sexed by DNA or biometrics, 82% were sexed correctly on general impression and shape in the field.
Conclusions For the many species with limited sexual dimorphism, a relatively small sample of accurately sexed birds can provide a means of testing and improving current morphological methods of sexing.</description><identifier>ISSN: 0006-3657</identifier><identifier>EISSN: 1944-6705</identifier><identifier>DOI: 10.1080/00063650609461433</identifier><identifier>CODEN: BISTAC</identifier><language>eng</language><publisher>Thetford: Taylor & Francis Group</publisher><subject>Animal behavior ; Biometrics ; Birds ; Chromosomes ; Comparative studies ; Field study ; Males ; Methods ; Molecules</subject><ispartof>Bird study, 2006-11, Vol.53 (3), p.193-198</ispartof><rights>Copyright Taylor & Francis Group, LLC 2006</rights><rights>Copyright British Trust for Ornithology Nov 2006</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c373t-34c9b4e7f40a29668ee8ff251eafef35646a63754728395a8665e9b77d6896543</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Gunnarsson, Tómas G.</creatorcontrib><creatorcontrib>Gill, Jennifer A.</creatorcontrib><creatorcontrib>Goodacre, Sara L.</creatorcontrib><creatorcontrib>Gélinaud, Guillaume</creatorcontrib><creatorcontrib>Atkinson, Philip W.</creatorcontrib><creatorcontrib>Hewitt, Godfrey M.</creatorcontrib><creatorcontrib>Potts, Peter M.</creatorcontrib><creatorcontrib>Sutherland, William J.</creatorcontrib><title>Sexing of Black-tailed Godwits Limosa limosa islandica: a comparison of behavioural, molecular, biometric and field-based techniques</title><title>Bird study</title><description>Capsule Biometrics and plumage characteristics can both be used to reliably sex Black-tailed Godwits.
Aims To develop methods of sexing Black-tailed Godwits and to validate their relative accuracy.
Methods A sample of 84 Black-tailed Godwits was sexed by DNA analysis of feather samples. The biometric data and plumage characteristics of these birds were then used to develop protocols for sexing godwits in the field.
Results A discriminant function analysis of biometric data correctly sexed 95% of the DNA-sexed reference sample. Of 808 birds caught throughout the range, 74% could be sexed with this method. Approximately 85% of the reference sample were correctly sexed on three plumage characteristics in the hand. Of 105 birds sexed by DNA or biometrics, 82% were sexed correctly on general impression and shape in the field.
Conclusions For the many species with limited sexual dimorphism, a relatively small sample of accurately sexed birds can provide a means of testing and improving current morphological methods of sexing.</description><subject>Animal behavior</subject><subject>Biometrics</subject><subject>Birds</subject><subject>Chromosomes</subject><subject>Comparative studies</subject><subject>Field study</subject><subject>Males</subject><subject>Methods</subject><subject>Molecules</subject><issn>0006-3657</issn><issn>1944-6705</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNqFkL1O7DAQhS10kdgLPACdRU3AXv_FiAbQ5UdaiQKoo4ljg8GJF9t7gZ4HJ9HSIUQ1xZxvvtFBaI-SQ0pqckQIkUwKIonmknLGNtCMas4rqYj4g2bTvhoDagv9zfmJEMoJlzP0cWvf_PCAo8NnAcxzVcAH2-HL2L36kvHC9zEDDuvhc4Ch8waOMWAT-yUkn-Mw0a19hP8-rhKEA9zHYM0qQDrArY-9LckbPJLYeRu6qoU8Koo1j4N_Wdm8gzYdhGx3v-Y2ur_4d3d-VS1uLq_PTxeVYYqVinGjW26V4wTmWsra2tq5uaAWnHVMSC5BMiW4mtdMC6ilFFa3SnWy1lJwto3213eXKU7e0jyNDw-jsqFaC0rIfArRdcikmHOyrlkm30N6byhppq6bb12PjFozfnAx9fAaU-iaAu8hJpdgMD5_p5ryVkby5FeS_Sz-BPoaly0</recordid><startdate>20061101</startdate><enddate>20061101</enddate><creator>Gunnarsson, Tómas G.</creator><creator>Gill, Jennifer A.</creator><creator>Goodacre, Sara L.</creator><creator>Gélinaud, Guillaume</creator><creator>Atkinson, Philip W.</creator><creator>Hewitt, Godfrey M.</creator><creator>Potts, Peter M.</creator><creator>Sutherland, William J.</creator><general>Taylor & Francis Group</general><general>British Trust for Ornithology</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QG</scope><scope>7SN</scope><scope>7XB</scope><scope>88A</scope><scope>88I</scope><scope>8AO</scope><scope>8FE</scope><scope>8FH</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>GNUQQ</scope><scope>H95</scope><scope>HCIFZ</scope><scope>L.G</scope><scope>LK8</scope><scope>M2P</scope><scope>M7P</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope></search><sort><creationdate>20061101</creationdate><title>Sexing of Black-tailed Godwits Limosa limosa islandica: a comparison of behavioural, molecular, biometric and field-based techniques</title><author>Gunnarsson, Tómas G. ; 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Aims To develop methods of sexing Black-tailed Godwits and to validate their relative accuracy.
Methods A sample of 84 Black-tailed Godwits was sexed by DNA analysis of feather samples. The biometric data and plumage characteristics of these birds were then used to develop protocols for sexing godwits in the field.
Results A discriminant function analysis of biometric data correctly sexed 95% of the DNA-sexed reference sample. Of 808 birds caught throughout the range, 74% could be sexed with this method. Approximately 85% of the reference sample were correctly sexed on three plumage characteristics in the hand. Of 105 birds sexed by DNA or biometrics, 82% were sexed correctly on general impression and shape in the field.
Conclusions For the many species with limited sexual dimorphism, a relatively small sample of accurately sexed birds can provide a means of testing and improving current morphological methods of sexing.</abstract><cop>Thetford</cop><pub>Taylor & Francis Group</pub><doi>10.1080/00063650609461433</doi><tpages>6</tpages></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Animal behavior Biometrics Birds Chromosomes Comparative studies Field study Males Methods Molecules |
| title | Sexing of Black-tailed Godwits Limosa limosa islandica: a comparison of behavioural, molecular, biometric and field-based techniques |
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