Artículo
Abstract:
We analysed the effects of the design of feeding-preference experiments in a study of seed selection by Rufous-collared Sparrows Zonotrichia capensis. We presented eight seed options in multiple- and simple-offer experiments. Statistical results indicated that in multiple-offer tests there were three preferred, and two avoided seed species. The other three species could not be assigned to any of those groups. In contrast, results of simple-offer tests showed that all seed species were preferred, except the two avoided ones. Using a graphical combination of the results of both approaches, we obtained an easily interpretable assessment of the seed preferences of Rufous-collared Sparrows. In the graph space, seed species make up three groups: preferred, avoided, and less-preferred (i.e., heavily consumed in simple-offer trials, but avoided or consumed to a lesser extent in multiple-offer trials). With the combination of both protocols we avoided the biases caused by using one experimental design alone and could detect secondary-preferred food items. This seems crucial when the bird under study is plastic in its feeding preferences.
Registro:
| Documento: | Artículo |
| Título: | Seed preferences by birds: Effects of the design of feeding-preference experiments |
| Autor: | Cueto, V.R.; Marone, L.; De Casenave, J.L. |
| Filiación: | Departamento de Ciencias Biológicas, FCEyN, Ciudad Universitaria, Piso 4, C1428EHA Buenos Aires, Argentina Desert Community Ecology Research Team (Ecodes), IADIZA Institute, Argentina Desert Community Ecology Research Team (Ecodes), IADIZA Institute, Casilla de Correo 507, 5500 Mendoza, Argentina |
| Palabras clave: | avifauna; experimental design; food preference; seed; Aves; Passeridae; Vertebrata; Zonotrichia capensis; Zonotrichia capensis |
| Año: | 2001 |
| Volumen: | 32 |
| Número: | 3 |
| Página de inicio: | 275 |
| Página de fin: | 278 |
| DOI: | http://dx.doi.org/10.1111/j.0908-8857.2001.320311.x |
| Título revista: | Journal of Avian Biology |
| Título revista abreviado: | J. Avian Biol. |
| ISSN: | 09088857 |
| CODEN: | JAVBE |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09088857_v32_n3_p275_Cueto |
Referencias:
- Cipollini, M.L., Levey, D.J., Why are some fruits toxic? Glycoalkaloids in Solanum and fruit choice by vertebrates (1997) Ecology, 78, pp. 782-798
- Johnson, D.H., The comparison of usage and availability measurements for evaluating resource preference (1980) Ecology, 61, pp. 65-71
- Johnson, D.H., The insignificance of statistical significance testing (1999) J. Wildl. Manage., 63, pp. 763-772
- Karasov, W.H., Digestive plasticity in avian energetics and feeding ecology (1996), pp. 61-84. , Carey, C. (ed.). Avian energetics and nutritional ecology. Chapman & Hall, New York; Lockwood III, J.R., On the statistical analysis of multiple-choice feeding preference experiments (1998) Oecologia, 116, pp. 475-481
- Manly, B.F.J., Comments on design and analysis of multiple-choice feeding-preference experiments (1993) Oecologia, 93, pp. 149-152
- Manly, B.F.J., Measuring selectivity from multiple choice feeding-preference experiments (1995) Biometrics, 51, pp. 709-715
- Marone, L., Habitat features affecting bird spatial distribution in the Monte desert, Argentina (1991) Ecología Austral, 1, pp. 77-86
- Marone, L., Horno, M.E., Seed reserves in the central Monte Desert, Argentina: Implications for granivory (1997) J. Arid Environ., 36, pp. 661-670
- Marone, L., Rossi, B.E., Lopez de Casenave, J., Granivore impact on soil-seed reserves in the central Monte desert, Argentina (1998) Funct. Ecol., 12, pp. 640-645
- Peterson, C.H., Renaud, P.E., Analysis of feeding preference experiments (1989) Oecologia, 80, pp. 82-86
- Roa, R., Design and analysis of multiple-choice feeding-preference experiments (1992) Oecologia, 89, pp. 509-515
- Smallwood, P.D., Peters, W.M.D., Grey squirrel food preferences: The effects of tannin and fat concentration (1986) Ecology, 67, pp. 168-174
- Tukey, J.W., The future of data analysis (1962) Ann. Math. Stat., 33, pp. 1-67
- Zar, J.H., (1996) Biostatistical analysis, , Prentice-Hall Upper Saddle River, New Jersey
Citas:
---------- APA ----------
Cueto, V.R., Marone, L. & De Casenave, J.L. (2001) . Seed preferences by birds: Effects of the design of feeding-preference experiments. Journal of Avian Biology, 32(3), 275-278.http://dx.doi.org/10.1111/j.0908-8857.2001.320311.x
---------- CHICAGO ----------
Cueto, V.R., Marone, L., De Casenave, J.L. "Seed preferences by birds: Effects of the design of feeding-preference experiments" . Journal of Avian Biology 32, no. 3 (2001) : 275-278.http://dx.doi.org/10.1111/j.0908-8857.2001.320311.x
---------- MLA ----------
Cueto, V.R., Marone, L., De Casenave, J.L. "Seed preferences by birds: Effects of the design of feeding-preference experiments" . Journal of Avian Biology, vol. 32, no. 3, 2001, pp. 275-278.http://dx.doi.org/10.1111/j.0908-8857.2001.320311.x
---------- VANCOUVER ----------
Cueto, V.R., Marone, L., De Casenave, J.L. Seed preferences by birds: Effects of the design of feeding-preference experiments. J. Avian Biol. 2001;32(3):275-278.http://dx.doi.org/10.1111/j.0908-8857.2001.320311.x
