Artículo
Abstract:
Competitive relationships between rodent species were studied in pampean agrosystems. Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens show a differential spatial distribution between cropfields and their borders in this system. The goal of this paper was to assess the role of competition in determining spatial distributions and relative abundances of these species. A removal experiment in border habitats showed that the removal of A. azarae causes an increase in captures, survival and residency time in C. laucha and O. flavescens (as compared to control areas). Removal of C. laucha didn't cause any change in the remaining species. Results showed that competition with A. azarae limits the use of field borders by C. laucha and O. flavescens. Presence of A. azarae in border habitats prevents the establishment of residents of C. laucha and O. flavescens, thereby causing also higher mortality and lower reproductive rates in these two species than those registered when A. azarae is removed. Interspecific encounters in a test arena showed that behavioral interactions are contributing to spatial segregation, with A. azarae becoming dominant over C. laucha. © 1993, Walter de Gruyter. All rights reserved.
Registro:
| Documento: | Artículo |
| Título: | Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal |
| Autor: | Busch, M.; Kravetz, F.O. |
| Filiación: | Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina Av. Intendente Cantilo s/n., Ciudad Universitaria., Pab. II. 40 piso. Lab. 104. Núñez. (CP 1428), Buenos Aires., Argentina |
| Palabras clave: | competition; farmland; rodent; Akodon azarae; Calomys laucha; Calomys musculinus; Oligoryzomys flavescens |
| Año: | 1993 |
| Volumen: | 56 |
| Número: | 4 |
| Página de inicio: | 541 |
| Página de fin: | 554 |
| DOI: | http://dx.doi.org/10.1515/mamm.1992.56.4.541 |
| Título revista: | Mammalia |
| Título revista abreviado: | Mammalia |
| ISSN: | 00251461 |
| PDF: | https://bibliotecadigital.exactas.uba.ar/download/paper/paper_00251461_v56_n4_p541_Busch.pdf |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00251461_v56_n4_p541_Busch |
Referencias:
- Bonaventura, S.M., Cagnoni, M., La vegetación de los bordes de caminos de la pampa ondulada, Pcia de Buenos Aires, , (Argentina). Parodiana. In press
- Brown, J.H., Competition for resources (1978) Effects of mammalian competitors on the ecology and evolution of communities, , Pymatuning Laboratory of Ecology. Special Publication No 6, Small Mammal Populations
- Brown, J.H., Munger, J.C., Experimental manipulation of a desert rodent community: food addition and species removal (1985) Ecology, 66, pp. 1545-1563
- Busch, M., Kravetz, F.O., Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two- habitat system. I. Spatial and numerical relationships (1992) Mammalia, 56, pp. 45-56
- Crespo, J.A., Ecología de una comunidad de roedores silvestres en el Partido de Rojas, Pcia de Buenos Aires (1966) Rev. Museo Arg. de Ciencias Naturales, 1 (3), pp. 79-134
- Danielson, B.J., Johnson, M.L., Gaines, M.S., An analysis of a method for comparing resident and colonists in natural populations of Microtus ochrogas-ter (1986) J. Mamm.y, 67, pp. 733-735
- Danielson, B.J., Gaines, M.S., The influences of conspecific and heterospecific residents on colonization (1987) Ecology, 68 (6), pp. 1778-1884
- De Villafane, G., Bonaventura, S.M., (1988) Mammalia, 51, p. 233. , Ecological studies in cropfields of the endemic area of Argentine Hemorrhagic fever. Calomys musculinus movements in relation to habitat and abundance
- Gliwicz, J., Competitive interactions within a forest rodent community in Central Poland (1981) Oikos, 37, pp. 353-362
- Grant, P.R., Interspecific competition among rodents (1972) Ann. Rev. Ecol. Syst., 3, pp. 79-106
- Grant, P.R., (1972) Competition for resources. Pymatuning Laboratory of Ecology, , Special publications No 5. Small Mammals Populations
- Joule, J., Jameson, D.L., Experimental manipulation of population density in three sympatric rodents (1972) Ecology, 53 (4), pp. 653-660
- Krebs, C.J., Demographic changes in fluctuating populations of Microtus cali-fornicus. Ecol (1966) Mon., 36, pp. 239-272
- Sokal, R.R., Rohlf, F.J., (1969) Biometry, , W.H. Freeman, San Francisco
Citas:
---------- APA ----------
Busch, M. & Kravetz, F.O. (1993) . Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal. Mammalia, 56(4), 541-554.http://dx.doi.org/10.1515/mamm.1992.56.4.541
---------- CHICAGO ----------
Busch, M., Kravetz, F.O. "Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal" . Mammalia 56, no. 4 (1993) : 541-554.http://dx.doi.org/10.1515/mamm.1992.56.4.541
---------- MLA ----------
Busch, M., Kravetz, F.O. "Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal" . Mammalia, vol. 56, no. 4, 1993, pp. 541-554.http://dx.doi.org/10.1515/mamm.1992.56.4.541
---------- VANCOUVER ----------
Busch, M., Kravetz, F.O. Competitive interactions among rodents (Akodon azarae, Calomys laucha, Calomys musculinus and Oligoryzomys flavescens) in a two-habitat system. II. Effect of species removal. Mammalia. 1993;56(4):541-554.http://dx.doi.org/10.1515/mamm.1992.56.4.541
