IADIZA   20886
INSTITUTO ARGENTINO DE INVESTIGACIONES DE LAS ZONAS ARIDAS
Unidad Ejecutora - UE
artículos
Título:
Abundance, Richness, Seasonal and Altitudinal Dynamics of Aquatic True Bugs (Heteroptera) in Mountain Wetlands of Argentina
Autor/es:
MONTEMAYOR, S. I.; MELO M. C.; SCHEIBLER, E.E.; SCOLLO, A. M.
Revista:
WETLANDS
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2016 vol. 36 p. 265 - 274
ISSN:
0277-5212
Resumen:
Mountain wetlands provide unique information becausetheir biota is highly specific and contributes significantlyto regional diversity. The goals of this study were assessingaltitudinal and temporal variation in the distribution ofHeteropteran assemblages in mountain wetlands; and studyingthe phenology of the most abundant species. All stages ofHeteroptera and data on environmental variables were collectedmonthly over one year from five mountain wetlands. Asimple community structure, and also a low richness of aquatictrue bugs, composed of four Heteropteran families(Corixidae, Belostomatidae, Notonectidae andGelastocoridae), characterized our ponds. Richness and abundancevaried temporally and spatially (p < 0.0001); and increasedat higher elevations. Additionally, the highest abundanceof cold stenothermal species occurred at the highestaltitudes where harsh conditions are prevalent. Ectemnostega(E.) quadrata and S. (T.) jensenhaarupi, both endemic to theAndes region, were the most abundant species. Both thesespecies showed univoltine cycles and overwintered as adults.Biodiversity of the Heteroptera reached maximum values insummer when water temperature increased. Temporal andspatial monitoring studies provide key information on thedistribution, diversity, and habitat requirements ofHeteropteran species as well as on conservation and managementof these vulnerable habitats and species which are facedwith climate warming.