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A new sex determination method using morphological traits in adult chinstrap and gentoo penguins on King George Island, Antarctica

Cited 4 time in wos
Cited 4 time in scopus
Title
A new sex determination method using morphological traits in adult chinstrap and gentoo penguins on King George Island, Antarctica
Authors
Lee, Won Young
Kim, Jeong-Hoon
Chung, Hosung
Han, Yeong-Deok
Jung, Jin-Woo
Keywords
chinstrap penguingentoo penguinmolecular sexingmorphological sexing
Issue Date
2015
Citation
Lee, Won Young, et al. 2015. "A new sex determination method using morphological traits in adult chinstrap and gentoo penguins on King George Island, Antarctica". ANIMAL CELLS AND SYSTEMS, 19: 156-159.
Abstract
Sex identification is a fundamental work for studying the behavioural ecology in animals. Although recent molecular sexing techniques have enabled us to distinguish the sexes, it is still convenient to discriminate the sexes with morphological traits especially when surveying colonial animals under harsh field conditions. For chinstrap and gentoo penguins in Antarctica, previous studies developed several morphological discriminant functions, but many studies did not adopt molecular sexing methods for deciding sexes. In this study, we tested previous morphology-based sexing methods to determine their applicability to adult chinstrap and gentoo penguins breeding at Nar?bski Point (Antarctic Specially Protected Area No. 171) in Barton Peninsula on King George Island. Furthermore, we aimed to develop alternative morphological features to reliably discriminate penguin sexes. Our results showed that the accuracies of previously suggested functions varied among discriminant functions in both species (approximately 64?82%). Here, we developed new functions to discriminate sexes in chinstrap and gentoo penguins, using bill and middle toe size which are easily acquired and less error-prone. The classification accuracy of the discriminant functions derived in this study was >90% for both species. Also, it was successfully applicable to another chinstrap population.
URI
https://repository.kopri.re.kr/handle/201206/7339
DOI
http://dx.doi.org/10.1080/19768354.2014.1003600
Type
Article
Indexed
SCIE
Appears in Collections  
2013-2014, Development of Environmental Monitoring Techniques of Antarctic Specially Protected Area (ASPA No. 171) (13-14) / Chung, Hosung (PE13360)
2014-2016, Long-Term Ecological Researches on King George Island to Predict Ecosystem Responses to Climate Change (14-16) / Hong; Soon Gyu (PE14020; PE15020; PE16020)
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