Artículo
Abstract:
Size distribution, sex ratio and use of burrows of the burrowing toad Rhinella fernandezae were studied in Buenos Aires province, Argentina. Two sites separated by approximately 300 m were studied: one was a road next to a swamp, and the other a garden of a country house located further from the swamp. We identified toad burrows, and individuals were sexed, measured and given an individual mark. Burrows were examined in subsequent months after the first sampling to assess the presence of toads. We found significant differences in the size distribution between areas, being the proportion of juveniles greater at the site next to the swamp where the reproduction of the species was observed. This result may suggest that the site located near to the swamp functions as a source habitat of individuals that migrate to the other site, where recruitment would be very scarce. Sex proportion of adults did not differ from 1:1 in neither the total population nor in each site, suggesting that there was not differential mortality by sex. Some toads changed burrows throughout the study period, but there were not differences in the frequency of change between adults and juveniles.
Registro:
| Documento: | Artículo |
| Título: | Population traits of the burrowing toad Rhinella fernandezae (Gallardo, 1957) (Anura, Bufonidae) |
| Autor: | Sanchez, L.C.; Busch, M. |
| Filiación: | Centro de Investigacion Cientifica Y Transferencia de Tecnologia a la Produccion - CICyTTP-CONICET, Matteri and España, 3105, Diamante, Entre Ríos, Argentina Laboratorio de Ecología de Roedores, Departamento de Ecología, Genética Y Evolución, Pabellón 2, C1428EHA, Buenos Aires, Argentina Consejo Nacional de Investigaciones Científicas Y Tecnológicas - CONICET |
| Palabras clave: | Argentina; Burrows use; Rhinella fernandezae; Sex ratio; Size distribution; animal; Argentina; article; classification; ecosystem; female; histology; male; physiology; population density; sex ratio; toad; Animals; Argentina; Bufonidae; Ecosystem; Female; Male; Population Density; Sex Ratio; Anura; Bufonidae; Rhinophrynidae |
| Año: | 2008 |
| Volumen: | 68 |
| Número: | 1 |
| Página de inicio: | 137 |
| Página de fin: | 140 |
| DOI: | http://dx.doi.org/10.1590/S1519-69842008000100019 |
| Título revista: | Brazilian Journal of Biology |
| Título revista abreviado: | Braz. J. Biol. |
| ISSN: | 15196984 |
| PDF: | https://bibliotecadigital.exactas.uba.ar/download/paper/paper_15196984_v68_n1_p137_Sanchez.pdf |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15196984_v68_n1_p137_Sanchez |
Referencias:
- BEGON, M., (1979) Investigating animal abundance: Capture - recapture for biologists, , Edward Arnold, London, 97 p
- BLAIR, A.P., Population structure in toads (1943) Am. Nat, 77 (733), pp. 563-568
- FERNÁNDEZ, K., Sobre la biología y reproducción de batracios argentinos (segunda parte). (1927) Bol. Acad. Nac. Cienc. Córdoba, 29, pp. 271-320
- GALLARDO, J.M., Las subespecies argentinas de Bufo granulosus Spix (1957) Rev. Mus. Arg. Cienc. Nat. "B. Rivadavia" Zool, 3 (6), pp. 336-374
- GALLARDO, J.M., La distribución de las subespecies de Bufo granulosus Spix: Su fidelidad a los sistemas hidrográficos sudamericanos. (1969) Cienc. Invest, 25 (9), pp. 406-416
- IUCN, C., INTERNATIONAL, and NATURE SERVE (2004) Global Amphibian Assessment, , www.globalamphibians.org, Accessed on 15 October 2004
- LAJMANOVICH, R.C., Relaciones tróficas de bufónidos (Anura: Bufonidae) en ambientes del río Paraná, Argentina. (1995) Alytes, 13 (3), pp. 87-103
- MARTORI, R., AUN, L., BIRRI, A., ROZZI GIMÉNEZ, C., HEREDIA, E., Reproducción comparada de tres especies de anuros sintónicos de una localidad del sudoeste de Córdoba. (2004) Cuad. Herpetol, 18 (2), pp. 43-59
- PULLIAM, H.R., Sources, Sinks, and population regulation (1988) Am. Nat, 132 (5), pp. 652-661
- SOKAL, R.R., ROHLF, F.J., (1999) Introducción a la Bioestadística, , Editorial Reverté, Barcelona, 362 p
- (2001) Statistica for Windows, Release 6.0. Computer program manual, , STATSOFT, Statsoft, Inc. Tulsa, OK, USA
- YANOSKY, A.A., MERCOLLI, C., DIXON, J.R., Field ecology of the pygmy toad Bufo pygmeus (Anura: Bufonidae), in northeastern Argentina with notes on sympatric sibling species of the granulosus Group (1997) Bull. Maryland Herpetol. Soc, 33 (2), pp. 66-77
- ZAR, J.H., (1996) Biostatistical Analysis, , 3. ed, Prentice Hall, New Jersey, 918 p
- ZUG, G.R., VITT, L.J., CALDWELL, J.P., (2001) Herpetology. An introductory biology of amphibians and reptiles, , 2. ed, Academic Press, San Diego, 538 p
Citas:
---------- APA ----------
Sanchez, L.C. & Busch, M. (2008) . Population traits of the burrowing toad Rhinella fernandezae (Gallardo, 1957) (Anura, Bufonidae). Brazilian Journal of Biology, 68(1), 137-140.http://dx.doi.org/10.1590/S1519-69842008000100019
---------- CHICAGO ----------
Sanchez, L.C., Busch, M. "Population traits of the burrowing toad Rhinella fernandezae (Gallardo, 1957) (Anura, Bufonidae)" . Brazilian Journal of Biology 68, no. 1 (2008) : 137-140.http://dx.doi.org/10.1590/S1519-69842008000100019
---------- MLA ----------
Sanchez, L.C., Busch, M. "Population traits of the burrowing toad Rhinella fernandezae (Gallardo, 1957) (Anura, Bufonidae)" . Brazilian Journal of Biology, vol. 68, no. 1, 2008, pp. 137-140.http://dx.doi.org/10.1590/S1519-69842008000100019
---------- VANCOUVER ----------
Sanchez, L.C., Busch, M. Population traits of the burrowing toad Rhinella fernandezae (Gallardo, 1957) (Anura, Bufonidae). Braz. J. Biol. 2008;68(1):137-140.http://dx.doi.org/10.1590/S1519-69842008000100019
