Anuran responses to spatial patterns of agricultural landscapes in Argentina
| Autor: | Teresa Boca, Gregorio I. Gavier-Pizarro, Alexis Cerezo, María Elena Zaccagnini, Romina P. Suarez, Josefina Vera-Candioti, Noela C. Calamari, Maria J. Damonte, Guillermo Sebastián Natale, Kimberly J. Babbitt, Nadia Codugnello |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
ESPINAL Otras Ciencias Biológicas Geography Planning and Development Land management HABITAT LOSS LANDSCAPE HETEROGENEITY 010501 environmental sciences 010603 evolutionary biology 01 natural sciences purl.org/becyt/ford/1 [https] Ciencias Biológicas Canonical correspondence analysis Ciencias Naturales Land use land-use change and forestry Ciencias Agrarias LANDSCAPE STRUCTURE purl.org/becyt/ford/1.6 [https] Ciencias Exactas 0105 earth and related environmental sciences Nature and Landscape Conservation Ecology Entre Ríos Landscape heterogeneity Habitat loss Landscape structure Forest connectivity ENTRE RIOS Amphibian conservation Espinal Agriculture expansion and intensification Geography Habitat destruction AMPHIBIAN CONSERVATION Habitat FOREST CONNECTIVITY Spatial ecology Species richness Landscape ecology AGRICULTURE EXPANSION AND INTENSIFICATION CIENCIAS NATURALES Y EXACTAS |
| Zdroj: | SEDICI (UNLP) Universidad Nacional de La Plata instacron:UNLP CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| DOI: | 10.1007/s10980-016-0426-2 |
| Popis: | 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. Facultad de Ciencias Exactas Centro de Investigaciones del Medioambiente |
| Databáze: | OpenAIRE |
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