| Autor: |
Mulieri PR; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), División Entomología, Museo Argentino de Ciencias Naturales 'Bernardino Rivadavia' (MACN). Av. Ángel Gallardo, 470, C1405DJR, Buenos Aires, Argentina., Migale S; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), División Entomología, Museo Argentino de Ciencias Naturales 'Bernardino Rivadavia' (MACN). Av. Ángel Gallardo, 470, C1405DJR, Buenos Aires, Argentina., Patitucci LD; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), División Entomología, Museo Argentino de Ciencias Naturales 'Bernardino Rivadavia' (MACN). Av. Ángel Gallardo, 470, C1405DJR, Buenos Aires, Argentina., González CR; Universidad Metropolitana de Ciencias de la Educación, Instituto de Entomología, Facultad de Ciencias Básicas, Avenida José Pedro Alessandri 774, 8320000, Santiago de Chile, Chile., Montemayor SI; Universidad Nacional de La Plata, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), División Entomología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n, 1900, Buenos Aires, La Plata, Argentina. |
| Abstrakt: |
Global biodiversity loss by anthropogenic impacts is an under-recognized form of global environmental change. Global defaunation is still poorly documented in the case of insects, showing a significant decrease in populations and diversity. The blowfly Neta chilensis (Walker 1837) is poorly known and presumed to be confined to southern-South America, with an unclear distributional pattern. It was last collected in 1984. We aimed, through Ecological Niche Models, to identify regions highly suitable for N. chilensis; to test the suitability of regions with doubtful records; to understand the impact that climatic change and human activities have had; and to identify regions with high chances to find it. We compiled 130 presence records from Argentina and Chile and 117 localities where it was sought but not found between 1987 and 2018. Results indicate that suitable conditions are restricted to southern and central Chile and to southwestern Argentina, that doubtful records are predicted in unsuitable areas, that N. chilensis occupies a narrow niche and that its decline is not mainly caused by climate changes but more probably to habitat loss and to the biological invasion. We identified two regions where the chances of finding the species are higher in the case that it is not extinct already. |
