Artículo
Interactions of the influences of habitat protection, habitat heterogeneity, and periodic flooding on waterbirds of the lower Paraná River, Argentina
Quiroga, Virginia Mariela
; Ronchi Virgolini, Ana Laura
; Lorenzón, Rodrigo Ezequiel
; Lammertink, J. Martjan
Fecha de publicación:
04/2021
Editorial:
Wiley Blackwell Publishing, Inc
Revista:
Biotropica
ISSN:
0006-3606
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
How waterbirds respond to environmental characteristics of river systems is of interest because of the high biodiversity of waterbirds in these systems, their ecological roles, and the importance of waterbirds in hunting for sport or sustenance. We studied the influence of natural factors (water-level fluctuations and environmental heterogeneity) and human-related factors (habitat protection, which primarily excludes cattle grazing and hunting) on waterbirds in the Pre-Delta region of the Paraná River system during three years. Our objectives were to evaluate the environmental factors that influence the assemblages of waterbirds and whether these variables explain differences in waterbird assemblages between protected and non-protected areas. Both species richness and abundance of waterbirds per point count increased with the diversity of land cover categories at count spots. Species richness also increased with the surface of open water. The larger surface of open water in the non-protected area contributed to explaining the higher species richness and abundance of waterbirds, including species with hunting pressure, in this area. During floods, the protected area maintained a high abundance of waterbirds, probably because the higher proportion of trees and aquatic vegetation in this area provided perches and foraging sites. We recommend enlarging protected areas in the Pre-Delta region because of their role of sheltering waterbirds during floods. Protected and non-protected areas serve complementary functions in providing habitat for waterbirds; therefore, it is important to maintain both of these management types in the landscape. Abstract in Spanish is available with online material.
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Articulos(CICYTTP)
Articulos de CENTRO DE INV.CIENT.Y TRANSFERENCIA TEC A LA PROD
Articulos de CENTRO DE INV.CIENT.Y TRANSFERENCIA TEC A LA PROD
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Articulos de INSTITUTO DE BIOLOGIA SUBTROPICAL
Articulos de INSTITUTO DE BIOLOGIA SUBTROPICAL
Articulos(INALI)
Articulos de INST.NAC.DE LIMNOLOGIA (I)
Articulos de INST.NAC.DE LIMNOLOGIA (I)
Citación
Quiroga, Virginia Mariela; Ronchi Virgolini, Ana Laura; Lorenzón, Rodrigo Ezequiel; Lammertink, J. Martjan; Interactions of the influences of habitat protection, habitat heterogeneity, and periodic flooding on waterbirds of the lower Paraná River, Argentina; Wiley Blackwell Publishing, Inc; Biotropica; 53; 4; 4-2021; 1031-1041
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