Composition of Amphibian Assemblages in Agroecosystems from the Central Region of Argentina

Clarisa de L. Bionda, Ismael E. di Tada, Rafael C. Lajmanovich


The anuran diversity, abundance, richness and evenness were examined in agroecosystems from the central region of Argentina, area that was greatly altered by agricultural activities. Relationships with climatic characteristics were also analyzed. To capture anurans, pitfall trap transects were established. A total of 561 amphibians of seven species, belonging to four families (Bufonidae, Leiuperidae, Cycloramphidae, and Leptodactylidae) were recorded. Stepwise multiple linear regressions showed strong positive association between both species richness and anuran abundance with habitat variables as rainfall and rain-day. The anuran richness observed in the studied areas is similar to other sites with level of alteration comparable, but the anuran richness and abundance observed here is lower compared with the records of anuran species for the region before agricultural development. Thus, these results have suggested that amphibians may be particularly affected by habitat modification and degradation due to agricultural activities in the central region of Argentina, and it may be contributing to regression of their diversity and richness.


agroecosystem; Argentina; anuran; soybean cropland

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ASIH, HL, SSAR (2001), Guidelines for Use of Live Amphibians and Reptiles in Field Research, Available on-line at: (accessed on January 15, 2010).

Blaustein A. R., Romansic J. M., Kiesecker J. M., and Hatch A. C. (2003), «Ultraviolet radiation, toxic chemicals and amphibian population declines», Divers. Distrib., 9, 123 – 140.

Bridarolli M. E. and di Tada I. E. (1994), «Biogeografía de los anfibios anuros de la región central de la Republica Argentina», Cuad. Herpetol., 8(1), 63 – 82.

Burkhart J. G., Bidwell J. R., Fort D. J., and Sheffield S. R. (2003), «Chemical stressors», in: G. Linder, S. K. Krest, and D. W. Sparling (eds.), Amphibian Decline: An Integrated Analysis of Multiple Stressors, SETAC Press, Pensacola, Florida, pp. 111 – 128.

Burton E. C., Gray M. J., Schmutzer A. C., and Miller D. L. (2009), «Differential responses of postmetamorphic amphibians to cattle grazing in wetlands», J. Wildlife Manag., 73(2), 269 – 277.

Bécart E., Aubry A., and Emmerson M. (2007), Monitoring the Conservation Status of Natterjack Toad (Bufo calamita) in Ireland, 2004 – 2006, Irish Wildlife Manuals, No. 31, National Parks and Wildlife Service, Department of the Environment, Heritage and Local Government, Dublin, Ireland.

Capitanelli R. G. (1979), «III. Clima», in: R. 0, R. A. Miatello, and M. E. Roqué (eds.), Geografía Física de la provincia de Córdoba, Ed. Boldt, Buenos Aires, pp. 45 – 138.

Cei J. M. (1980), Amphibians of Argentina, Monit. Zool. Ital. Monogr. 2, Nuova Serie, Firenze.

Collins J. P. and Crump M. (2009), Extinction in Our Time: Global Amphibian Declines, Oxford Univ. Press, Oxford – New York.

Colwell R. K. (1997), EstimateS: Statistical Estimation of Species Richness and Shared Species from Samples. Version 5. User’s Guide and Application, Available on-line at: (accessed on February 20, 2010).

Corn P. S. (2005), «Climate change and amphibians», Animal Biodivers. Conserv., 28.1, 59 – 67.

di Tada I. E. (1999), Patrones de distribución de los Anfibios Anuros de la provincia de Córdoba. Ph.D. Diss., Univ. Nacional Río Cuarto, Córdoba, Argentina.

Duellman W. E. and Trueb L. (1986), Biology of Amphibians, McGraw-Hill, New York.

Duré M. I., Kehr A. I., Schaefer E. F., and Marangoni F. (2008), «Diversity of amphibians in rice fields from northeastern Argentina», Interciencia, 33(7), 523 – 527.

Gibbs J. P. (1998), «Distribution of woodland amphibians along a forest fragmentation gradient», Landscape Ecol., 13(4), 263 – 268.

Gray M. J. (2002), «Effect of anthropogenic disturbance and landscape structure on body size, demographics, and chaotic dynamics of southern high plains amphibians», Diss. Abstr. Int., 63, 605.

Hamann M. I., Kehr A. I., and González C. E. (2006), «Species affinity and infracommunity ordination of helminths of Leptodactylus chaquensis (Anura: Leptodactylidae) in two contrasting environments from northeastern Argentina», J. Parasitol., 92(6), 1171 – 1179.

Hazell D., Cunnungham R., Lindenmayer D., Mackey B., and Osborne W. (2001), «Use of farm dams as frog habitat in an Australian agricultural landscape: factors affecting species richness and distribution», Conserv. Biol., 102, 155 – 169.

Henle K., Alard D., Clitherow J., Cobb P., Firbank L., Kull T., Mccracken D., Moritz R. F. A., Niemelä J., Rebane M., Wascher D., Watt A., and Young J. (2008), «Identifying and managing the conflicts between agriculture and biodiversity conservation in Europe — A review», Agr. Ecosyst. Environ., 124, 60 – 71.

Inta EEA Manfredi (2003), Proyecto Regional de Agricultura Sustentable, Available on-line at: (available on April 10, 2006).

Jofré G. M., Reading C. J., and di Tada I. E. (2007), «Habitat selection in the Pampa de Achala toad, Bufo achalensis», Amphibia–Reptilia, 28(1), 129 – 138.

Lavilla E. O., Scrocchi G. J., and Avila L. J. (1992), Clave para la identificación de los Anfibios de la provincia de Córdoba (Argentina), Serie Divulgación No. 7, Asoc. Herpetol. Argentina.

Magurran A. E. (1987), Ecological Diversity and Its Measurements, Princeton Univ. Press, Princeton.

Martino A. L. (1999), Análisis estructural de una comunidad de anfibios (Barreto, Córdoba, Argentina). Ph.D. Diss., Univ. Nacional Río Cuarto, Córdoba, Argentina.

Martori R., Aun L., Gallego F., and Rozzi Giménez C. (2005), «Temporal variation and size class distribution in a herpetological assemblage from Córdoba, Argentina», Cuad. Herpetol., 19(1), 35 – 52.

Pavignano I. (1988), «A multivariate analysis of habitat determinants for Triturus vulgaris and T. carnifex in northwestern Italy», Alytes, 7(3), 265 – 272.

Peltzer P. M. (2006), La fragmentación de hábitat y su influencia en la diversidad y distribución de anfibios anuros de áreas ecotonales de los dominios fitogeográficos amazónico y chaqueño. Doctoral Tesis, Universidad Nacional de La Plata, Buenos Aires.

Peltzer P. M., Lajmanovich R. C., and Beltzer A. H. (2003), «The effects of habitat fragmentation on amphibian species richness in the floodplain of the middle Parana River, Argentina», Herpetol. J., 13, 95 – 98.

Peltzer P. M., Lajmanovich R. C., Attademo A. M., and Beltzer A. H. (2006), «Diversity of anuran across agricultural ponds in Argentina», Biodivers. Conserv., 19(15), 3499 – 3513.

Petit L. J. and Petit D. R. (2003), «Evaluating the importance of human-modified lands for neotropical bird conservation», Conserv. Biol., 17(3), 687 – 694.

Ray N., Lehmann A., and Joly P. (2002), «Modeling spatial distribution of amphibian populations: a GIS approach based on habitat matrix permeability», Biodivers. Conserv., 11, 2143 – 2165.

Romansic J. M., Diez K. A., Higashi E. M., and Blaustein A. R. (2006), «Effects of nitrate and the pathogenic water mold Saprolegnia on survival of amphibian larvae», Dis. Aquat. Organ., 68, 235 – 243.

SAGPyA (2009), Estimaciones agrícolas mensuales, campaña agrícola 2008/2009, Available on-line at: (available on May 15, 2009).

Sanchez L. C., Peltzer P. M., Manzano A. S., and Lajmanovich R. C. (2007), «Dinámica de un ensamble de anuros en un humedal del tramo inferior del río Paraná, Argentina», Interciencia, 32(7), 463 – 470.

Schmutzer A. C., Gray M. J., Burton E. C., and Miller D. L. (2008), «Impacts of cattle on amphibian larvae and the aquatic environment», Freshwater Biol., 53(12), 2613 – 2625.

StatSoft (2001), Statistica for Windows, Release 6.0, Computer Program Manual, StatSoft, Inc., Tulsa, OK, USA.

Tejedo M. (2003), «El declive de los anfibios. La dificultad de separar las variaciones naturales del cambio global», Munibe, 16, 20 – 43.

Vasconcelos T. S. and Rossa-Feres D. de C. (2005), «Diversidade, distribuição espacial e temporal de anfíbios anuros (Amphibia, Anura) na região noroeste do estado de São Paulo, Brasil», Biota Neotropica Ed. Portuguesa, 5(2), 1 – 14.

Waichman A. V. (1992), «An alphanumeric code for toe clipping amphibians and reptiles», Herpetol. Rev., 23(1), 19 – 21.

Wiens J. J. and Donoghue M. J. (2004), «Historical biogeography, ecology and species richness», Trends Ecol. Evol., 19(12), 639 – 644.



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