Foraging efficiency of Akodon azarae under different plant cover and resource levels
The goal of this work was to determine how the foraging behaviour of Akodon azarae changes with predation risk and food availability in cropfield borders of Buenos Aires, Argentina. Our hypotheses were that A. azarae has a greater foraging efficiency in safe areas than in risky ones and that the for...
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2009
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| LEADER | 10724caa a22009017a 4500 | ||
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| 001 | PAPER-8679 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518203829.0 | ||
| 008 | 190411s2009 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-70349588543 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 030 | |a JOETE | ||
| 100 | 1 | |a Fraschina, J. | |
| 245 | 1 | 0 | |a Foraging efficiency of Akodon azarae under different plant cover and resource levels |
| 260 | |c 2009 | ||
| 270 | 1 | 0 | |m Fraschina, J.; CONICET, Avenida Rivadavia 1917, CP C1033AAJ Ciudad de Buenos Aires, Argentina; email: jfraschina@ege.fcen.uba.ar |
| 506 | |2 openaire |e Política editorial | ||
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| 520 | 3 | |a The goal of this work was to determine how the foraging behaviour of Akodon azarae changes with predation risk and food availability in cropfield borders of Buenos Aires, Argentina. Our hypotheses were that A. azarae has a greater foraging efficiency in safe areas than in risky ones and that the foraging behaviour of A. azarae also depends on the level of resources. We measured giving-up densities (GUDs) and food consumption twice a year in artificial foraging patches (bottles with known amounts of millet seed) in covered and open areas and with two different levels of seed abundance. In both periods, GUDs were lower in the covered areas than in the open ones independently of food level. Consumption increased with food level in covered areas but not in open areas. Based on these results, we conclude that A. azarae appears to maximize its consumption depending on predation risk. © Japan Ethological Society and Springer 2009. |l eng | |
| 536 | |a Detalles de la financiación: Universidad de Buenos Aires | ||
| 536 | |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas | ||
| 536 | |a Detalles de la financiación: Acknowledgments We thank Gerardo Cueto and Beatriz Gonzalez for their statistical advice and Joel S. Brown for his useful comments on early versions of this manuscript. We also thank D. Gaynor people for their assistance during field work. We greatly acknowledge commentaries on a previous version of the manuscript by R. Cavia, M.S. Fernández, I.E. Gómez Villafañe, D. Bilenca and V. León. This work was funded by University of Buenos Aires and CONICET grants. | ||
| 593 | |a CONICET, Avenida Rivadavia 1917, CP C1033AAJ Ciudad de Buenos Aires, Argentina | ||
| 593 | |a Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Av. Intendente Cantilo s/n Ciudad Universitaria, CP 1428 Núñez, Buenos Aires, Argentina | ||
| 690 | 1 | 0 | |a CONSTRAINTS |
| 690 | 1 | 0 | |a FORAGING EFFICIENCY |
| 690 | 1 | 0 | |a GIVING-UP DENSITY |
| 690 | 1 | 0 | |a PREDATION RISK |
| 690 | 1 | 0 | |a RODENT |
| 690 | 1 | 0 | |a AKODON AZARAE |
| 690 | 1 | 0 | |a RODENTIA |
| 700 | 1 | |a Knight, C. | |
| 700 | 1 | |a Busch, M. | |
| 773 | 0 | |d 2009 |g v. 27 |h pp. 447-452 |k n. 3 |p J. Ethol. |x 02890771 |t Journal of Ethology | |
| 856 | 4 | 1 | |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-70349588543&doi=10.1007%2fs10164-008-0140-x&partnerID=40&md5=d92d38075a097ed1f4717e7cf5e74bdf |y Registro en Scopus |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s10164-008-0140-x |y DOI |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_02890771_v27_n3_p447_Fraschina |y Handle |
| 856 | 4 | 0 | |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02890771_v27_n3_p447_Fraschina |y Registro en la Biblioteca Digital |
| 961 | |a paper_02890771_v27_n3_p447_Fraschina |b paper |c PE | ||
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| 999 | |c 69632 | ||