| Southern Bird | |
| Sex determination of black petrels (Procellaria parkinsoni) using morphometric measurements and discriminant function analysis | Notornis and Birds New Zealand | |
| Dennis, TE1 Bell, EA1 Landers, TJ1 Mischler, CP1 | |
| 关键词: black petrel; conservation; field measurements; population dynamics; sexing; | |
| DOI : | |
| 学科分类：农业科学（综合） | |
| 来源: Ornithological Society of New Zealand Inc. | |
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【 摘 要 】
Discriminantfunctionanalysis(DFA)iswidelyusedtodeterminesexinthefieldfrommorphologicalmeasurementsofbirdspecieswithmonomorphicplumage.Sexualdimorphismwasexaminedinblackpetrels(Procellariaparkinsoni)using7externalmeasurementsofadultbirdsbreedingonGreatBarrierIsland,NewZealand.Malesweresignificantlylargerthanfemalesinabsolutevaluesofallmeasurementsexceptfortarsus.TwostepwiseDFAmodelsweredeveloped.Thefirstusedall7parameters,whilethesecondmodelusedonly6parametersinordertoincreasesamplesize.Modeloneandtwoshowedan88and82%classificationsuccess,respectively,mostlikelyduetothehighoverlapinmeasurementsbetweenmalesandfemales.Thesecanonicalfunctionswerenotaccurateenoughforfieldsurveys,butmaybeimprovedusingalargerandmorerepresentativesamplesize.
【 授权许可】
Unknown
【 预 览 】
| Files | Size | Format | View |
|---|---|---|---|
| RO201912090835286ZK.pdf | 743KB |  download |
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