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Abstract:

On current knowledge, it has not been possible to determine the sex of Blue-fronted Amazons (Amazona aestiva) in the hand, as males and females were thought not to differ in the colour of plumage or size. We used discriminant function analysis to develop equations for determining the sex of Blue-fronted Amazons using in-hand measurements. We took seven measurements of size and one measure of plumage colour (percentage of yellow on the head) from 202 birds in north-western Argentina. The sex of each individual was determined using DNA-based genetic techniques. For all size measurements, males averaged larger than females. Males also had a higher percentage of yellow plumage on the head than females. The percentage of yellow plumage (64%) and body mass (12%) had the highest degree of dimorphism, but also showed high within-sex coefficients of variation, correctly classifying 73% and 72% of the individuals respectively. Although bill-depth had a low degree of dimorphism (7%), it had the lowest coefficient of variation (4%) resulting in the most accurate single-measurement for sexing this species (80% of the individuals). A cross validation process revealed that a discriminant function including three measurements (bill-depth, tibial length and head-width) was more accurate and reliable for determination of sex than single measurements, classifying correctly85%of the individuals. Our results showthat Blue-fronted Amazons are sexually dimorphic for most characteristics of body size and show sexual dichromatism in the colour of the plumage of the head, which allows determination of sex of individuals by morphological variables that can be easily measured in the field. © Royal Australasian Ornithologists Union 2009.

Registro:

Documento: Artículo
Título:Sexual dimorphism and determination of sex by morphometrics in Blue-fronted Amazons (Amazona aestiva)
Autor:Berkunsky, I.; Mahler, B.; Reboreda, J.C.
Filiación:Departamento de Ecología, Genética y Evolucín, Pabelĺn II Ciudad Universitaria, C1428EGA Buenos Aires, Argentina
Palabras clave:Amazona aestiva xanthopteryx; Discriminant analysis; Sexual dichromatism; bird; body size; discriminant analysis; DNA; genetic analysis; morphometry; plumage; population viability analysis; sex determination; sexual dimorphism; Argentina; South America; Amazona aestiva; Amazona aestiva xanthopteryx; Aves; Psittacidae
Año:2009
Volumen:109
Número:3
Página de inicio:192
Página de fin:197
DOI: http://dx.doi.org/10.1071/MU08072
Título revista:Emu
Título revista abreviado:Emu
ISSN:01584197
CODEN:EMUMA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01584197_v109_n3_p192_Berkunsky

Referencias:

  • Andersson, M., (1994) Sexual Selection, , Princeton University Press: Princeton, NJ
  • Badyaev, A.V., Hill, G.E., Evolution of sexual dichromatism: Contribution of carotenoid- versus melanin-based coloration (2000) Biological Journal of the Linnean Society, 69, pp. 153-172. , doi: 10.1111/j.1095- 8312.2000.tb01196.x
  • Bolkovic, M.L., Ramadori, D., (2006) Manejo de Fauna Silvestre en la Argentina: Programas de Uso Sustentable, , Dirección de Fauna Silvestre, Secretaría de Ambiente y Desarrollo Sustentable: Buenos Aires
  • Bond, A.B., Wilson, K.J., Diamond, J., Sexual dimorphism in the Kea (Nestor nobilis) (1991) Emu, 91, pp. 12-19
  • Bosch, K., Wedde, U., (1981) Encyclopedia of Amazon Parrots, , T. F. H. Publications: Neptune City, NJ
  • Bucher, E.H., Saravia, C., Miglietta, S., Zaccagnini, M.E., Status and management of the Blue-fronted Amazon parrot in Argentina (1992) Psittascene, 4, pp. 3-6
  • Budden, A.E., Beissinger, S.R., Against the odds? Nestling sex ratio variation in green-rumped parrotlets (2004) Behavioral Ecology, 15 (4), pp. 607-613. , DOI 10.1093/beheco/arh052
  • Butler, C., Gosler, A., Sexing and aging Rose-ringed Parakeets Psittacula krameri in the UK (2004) Ringing & Migration, 22, pp. 7-12
  • Collar, N.J., Family Psittacidae (Parrots) (1997) Handbook of the Birds of the World., 4, pp. 280-477. , Sandgrouse to Cuckoos'. (Eds J. del Hoyo, A. Elliott and J. Sargatal.) Lynx Edicions: Barcelona
  • Darrieu, C.A., Revisión de las razas geográficas de Amazona aestiva (Linne) (Aves, Psittacidae) (1983) Neotrópica, 29, pp. 3-10
  • Donohue, K.C., Dufty Jr. A.M, Sex determination of Redtailed Hawks (Buteo jamaicensis calurus) using DNA analysis and morphometrics (2006) Journal of Field Ornithology, 77, pp. 74-79. , doi: 10.1111/ j.1557-9263.2006.00003.x
  • Ellegren, H., First gene on the avian W chromosome (CHD) provides a tag for universal sexing of non-ratite birds (1996) Proceedings of the Royal Society B: Biological Sciences, 263 (1377), pp. 1635-1641. , DOI 10.1098/rspb.1996.0239
  • Fernandes Seixas, G.H., Mourao, G.D., Nesting success and hatching survival of the blue-fronted amazon (amazona aestiva) in the pantanal of mato grosso do sul, Brazil (2002) Journal of Field Ornithology, 73, pp. 399-409
  • Fletcher, K.L., Hamer, K.C., Sexing terns using biometrics: The advantage of within-pair comparisons (2003) Bird Study, 50, pp. 78-83
  • Forshaw, J.M., (1989) Parrots of the World.' 3rd Edn., , Lansdowne Editions: Sydney
  • Forshaw, J.M., (2006) Parrots of the World: An Identification Guide, , Princeton University Press: Princenton, NJ
  • Griffith, S.C., Owens, I.P.F., Burke, T., Female choice and annual reproductive success favour less-ornamented male house sparrows (1999) Proceedings of the Royal Society B: Biological Sciences, 266 (1421), pp. 765-770. , DOI 10.1098/rspb.1999.0703
  • Hill, G.E., Plumage colouration is a sexually selected indicator mechanism (1991) Nature, 350, pp. 337-339. , doi: 10.1038/350337a0
  • Hill, G.E., McGraw, K.J., (2006) Bird Coloration. Vol.II: Function and Evolution, , Harvard University Press: Harvard
  • Hughes, C., Integrating molecular techniques with field methods in studies of social behavior: A revolution results (1998) Ecology, 79, pp. 383-399
  • Keyser, A.J., Hill, G.E., Structurally based plumage coloration is an honest signal of quality in male Blue Grosbeaks (2000) Behavioral Ecology, 11, pp. 202-209. , doi: 10.1093/beheco/11.2.202
  • Low, R., (2005) Amazon Parrots: Aviculture, Trade and Conservation, , Insignis Publications: Mansfield, Notts, UK
  • Masello, J.F., Quillfeldt, P., Body size, body condition and ornamental feathers of Burrowing Parrots: Variation between years and sexes, assortative mating and influences on breeding success (2003) Emu, 103 (2), pp. 149-161. , DOI 10.1071/MU02036
  • Miller, S.A., Dykes, D.D., Polesky, H.F., A simple salting out procedure for extracting DNAfrom human nucleated cells (1988) Nucleic Acids Research, 16, p. 1215. , doi: 10.1093/nar/16.3.1215
  • Miyaki, C.Y., Duarte, J.M.B., Caparroz, R., Nunes, A.L.V., Wajntal, A., Sex identification of New World parrots (Psittacidae, Aves) using the human minisatellite probe 33.15 (1997) Auk, 114, pp. 516-520
  • Moorhouse, R.J., Sibley, M.J., Lloyd, B.D., Greene, T.C., Sexual dimorphism in the North Island Kaka Nestor meridionalis septentrionalis: Selection for enhanced male provisioning ability? (1999) Ibis, 141, pp. 644-651. , doi: 10.1111/j.1474-919X.1999.tb07372.x
  • Phillips, R.A., Furness, R.W., Predicting the sex of parasitic jaegers by discriminant analysis (1997) Waterbirds, 20, pp. 14-23. , doi: 10.2307/ 1521759
  • Quintana, F., Somoza, G., Uhart, M., Cassara, C., Gandini, P., Frere, E., Sex determination of adult Rock Shags by molecular sexing and morphometric parameters (2003) Journal of Field Ornithology, 74, pp. 370-375
  • Reynolds, S.J., Martin, G.R., Wallace, L.L., Wearn, C.P., Hughes, B.J., Sexing sooty terns on Ascension Island from morphometric measurements (2008) Journal of Zoology, 274, pp. 2-8
  • Safran, R.J., McGraw, K.J., Plumage coloration, not length or symmetry of tail-streamers, is a sexually selected trait in North American barn swallows (2004) Behavioral Ecology, 15, pp. 455-461. , doi: 10.1093/beheco/ arh035
  • Santos, S.I.C.O., Elward, B., Lumeij, J.T., Sexual dichromatism in the Blue-fronted Amazon Parrot (Amazona aestiva) revealed by multiple-angle spectrometry (2006) Journal of Avian Medicine and Surgery, 20, pp. 8-14. , doi: 10.1647/1082-6742(2006)20[8:SDITBA]2.0.CO;2
  • Senar, J.C., Figuerola, J., Pascual, J., Brighter yellow blue tits make better parents (2002) Education Economics, 269 (1488), pp. 257-261. , DOI 10.1098/rspb.2001.1882
  • Siefferman, L., Hill, G.E., Structural and melanin coloration indicate parental effort and reproductive success in male eastern bluebirds (2003) Behavioral Ecology, 14 (6), pp. 855-861. , DOI 10.1093/beheco/arg063
  • Siefferman, L., Hill, G.E., UV-blue structural coloration and competition for nestboxes in male eastern bluebirds (2005) Animal Behaviour, 69 (1), pp. 67-72. , DOI 10.1016/j.anbehav.2003.12.026, PII S000334720400329X
  • Snyder, N.F., Wiley, J.W., Sexual size dimorphism in hawks and owls of North America (1976) Ornithological Monographs, 20, pp. 1-96
  • Sokal, R.R., Rohlf, F.J., (1995) Biometry, , W. H. Freeman and Company: New York
  • (2001) Statistica for Windows Version 6.0, , StatSoft StatSoft Inc.: Tulsa, OK
  • Svagelj, W.S., Quintana, F., Sexual size dimorphism and sex determination by morphometric measurements in breeding imperial shags (Phalacrocorax atriceps) (2007) Waterbirds, 30, pp. 97-102. , doi: 10.1675/ 1524-4695(2007)030[0097:SSDASD]2.0.CO;2
  • Tabachnick, B.G., Fidell, L.S., (1996) Using Multivariate Statistics, , Harper Collins Publishers: New York
  • Weidinger, K., Van Franeker, J.A., Applicability of external measurements for sexing of the cape petrel Daption capense at withinpair, within-population and between-population scales (1998) Journal of Zoology, 245, pp. 473-482. , doi: 10.1111/j.1469-7998.1998.tb00122.x
  • Winker, K., Suggestions for measuring external characters of birds (1998) Ornitologia Neotropical, 9, pp. 23-30

Citas:

---------- APA ----------
Berkunsky, I., Mahler, B. & Reboreda, J.C. (2009) . Sexual dimorphism and determination of sex by morphometrics in Blue-fronted Amazons (Amazona aestiva). Emu, 109(3), 192-197.
http://dx.doi.org/10.1071/MU08072
---------- CHICAGO ----------
Berkunsky, I., Mahler, B., Reboreda, J.C. "Sexual dimorphism and determination of sex by morphometrics in Blue-fronted Amazons (Amazona aestiva)" . Emu 109, no. 3 (2009) : 192-197.
http://dx.doi.org/10.1071/MU08072
---------- MLA ----------
Berkunsky, I., Mahler, B., Reboreda, J.C. "Sexual dimorphism and determination of sex by morphometrics in Blue-fronted Amazons (Amazona aestiva)" . Emu, vol. 109, no. 3, 2009, pp. 192-197.
http://dx.doi.org/10.1071/MU08072
---------- VANCOUVER ----------
Berkunsky, I., Mahler, B., Reboreda, J.C. Sexual dimorphism and determination of sex by morphometrics in Blue-fronted Amazons (Amazona aestiva). Emu. 2009;109(3):192-197.
http://dx.doi.org/10.1071/MU08072