Multi-level analysis of bird abundance and damage to crop fields

Authors
Canavelli, Sonia Beatriz; Branch, Lyn C.; Cavallero, Pedro; González, Cristina; Zaccagnini, Maria Elena
Publication Year
2014
Language
English
Format
article
Status
Published version
Description
Bird damage to agricultural crops is an important cause of economic loss for farmers worldwide. Predictive habitat models relating bird abundance and damage to characteristics of the agricultural environment at multiple scales are a key tool for designing management programs to reduce impacts of birds on agricultural production. In this study, we explored habitat features influencing abundance and damage of monk parakeets (Myiopsitta monachus) to corn (Zea mays) and sunflower (Helianthus annuus) fields, as a basis for the design and evaluation of management strategies for preventing damage in the future. Using a multi-level approach, we evaluated within-field, field, and landscape variables at three spatial scales potentially related to monk parakeet abundance and damage in crop fields. Monk parakeet abundance and damage was greater in sunflower than in corn fields. Landscape variables, such as distance to nearest site with trees, percentage of landscape with trees, and availability of foraging sites for monk parakeets around the crop fields were more important than local variables in explaining monk parakeet damage to crop fields. However, local variables, such as field area, plant density and percentage of field border with trees, also were related to damage. Relationships varied depending on the crop under consideration and spatial scale of analysis. Based on this study, managers should consider both local and landscape factors when planning management measures to prevent bird damage to crops.
EEA Paraná
Fil: Canavelli, Sonia Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina. University of Florida. Department of Wildlife Ecology and Conservation; Estados Unidos
Fil: Branch, Lyn C. University of Florida. Department of Wildlife Ecology and Conservation; Estados Unidos
Fil: Cavallero, Pedro. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias; Argentina
Fil: González, Cristina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros; Argentina
Fil: Zaccagnini, Maria Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina
Source
Agriculture, ecosystems & environment 197 (1) : 128-136. (December 2014)
Subject
Pájaros Nocivos
Pérdidas de la Cosecha
Paisaje
Maíz
Zea Mays
Helianthus Annuus
Maize
Landscape
Crop Losses
Noxious Birds
Myiopsitta Monachus
Argentina
Sunflower
Access level
Restricted access
License
Repository
INTA Digital (INTA)
Institution
Instituto Nacional de Tecnología Agropecuaria
OAI Identifier
oai:localhost:20.500.12123/3023