Anuran responses to spatial patterns of agricultural landscapes in Argentina

Authors
Suarez, Romina Paula; Zaccagnini, Maria Elena; Babbitt, Kimberly J.; Calamari, Noelia Cecilia; Natale, Guillermo S.; Cerezo, Alexis; Codugnello, Nadia; Boca, Rosa Teresa; Damonte, María Jimena; Vera Candioti, Josefina; Gavier Pizarro, Gregorio Ignacio
Publication Year
2016
Language
English
Format
article
Status
Published version
Description
Context: Amphibians are declining worldwide and land use change to agriculture is recognized as a leading cause. Argentina is undergoing an agriculturalization process with rapid changes in landscape structure. Objectives: We evaluated anuran response to landscape composition and configuration in two landscapes of east-central Argentina with different degrees of agriculturalization. We identified sensitive species and evaluated landscape influence on communities and individual species at two spatial scales. Methods: We compared anuran richness, frequency of occurrence, and activity between landscapes using call surveys data from 120 sampling points from 2007 to 2009. We evaluated anuran responses to landscape structure variables estimated within 250 and 500-m radius buffers using canonical correspondence analysis and multimodel inference from a set of candidate models. Results: Anuran richness was lower in the landscape with greater level of agriculturalization with reduced amount of forest cover and stream length. This pattern was driven by the lower occurrence and calling activity of seven out of the sixteen recorded species. Four species responded positively to the amount of forest cover and stream habitat. Three species responded positively to forest cohesion and negatively to rural housing. Two responded negatively to crop area and diversity of cover classes. Conclusions: Anurans within agricultural landscapes of east-central Argentina are responding to landscape structure. Responses varied depending on species and study scale. Life-history traits contribute to responses differences. Our study offers a better understanding of landscape effects on anurans and can be used for land management in other areas experiencing a similar agriculturalization process.
Instituto de Recursos Biológicos
Fil: Suarez, Romina Paula. INTA. Instituto de Recursos Biológicos; Argentina
Fil: Zaccagnini, Maria Elena. INTA. Instituto de Recursos Biológicos; Argentina
Fil: Babbitt, Kimberly J. University of New Hampshire. Department of Natural Resources and the Environment; Estados Unidos
Fil: Calamari, Noelia Cecilia. INTA. Estación Experimental Agropecuaria Paraná; Argentina
Fil: Natale, Guillermo S. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química. Centro de Investigaciones del Medio Ambiente; Argentina
Fil: Cerezo, Alexis. Asociación Aves Argentinas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos; Argentina
Fil: Codugnello, Nadia. Universidad Nacional de Luján. Laboratorio de Ecología; Argentina
Fil: Boca, Rosa Teresa. INTA. Instituto de Clima y Agua; Argentina
Fil: Damonte, María Jimena. INTA. Instituto de Recursos Biológicos; Argentina
Fil: Vera Candioti, Josefina. INTA. Estación Experimental Agropecuaria Oliveros. Agencia De Extensión Rural Venado Tuerto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gavier Pizarro, Gregorio Ignacio. INTA. Instituto de Recursos Biológicos; Argentina
Source
Landscape Ecology 31 (10) : 2485–2505. (December 2016)
Subject
Anura
Anfibios
Conservación del Paisaje
Agricultura
Intensificación
Amphibians
Landscape Conservation
Agriculture
Intensification
Argentina
Anuros
Agriculturización
Access level
Restricted access
License
Repository
INTA Digital (INTA)
Institution
Instituto Nacional de Tecnología Agropecuaria
OAI Identifier
oai:localhost:20.500.12123/3505