INVESTIGADORES
LANCELOTTI julio Lucio
artículos
Título:
The role of environmental, geographical, morphometric and spatial variables on plankton communities in lakes of the arid Patagonian plateaus
Autor/es:
PORCEL, SOL; CHAPARRO, GRISELDA; MARINONE, M CRISTINA; SAAD, JUAN F; LANCELOTTI, JULIO; IZAGUIRRE, IRINA
Revista:
JOURNAL OF PLANKTON RESEARCH
Editorial:
OXFORD UNIV PRESS
Referencias:
Lugar: Oxford; Año: 2020
ISSN:
0142-7873
Resumen:
Species diversity is one of the most informative community metrics and is influenced by regional and local factors.We studied the spatial patterns of taxonomic and functional phyto- and zooplankton diversity in 33 lakes from twobasaltic plateaus of the arid Patagonia. The aims of our study were to evaluate α, β and γ taxonomic diversity ofphyto- and zooplankton; to assess the influence of environmental, spatial, geographical and morphometric factors onphyto- and zooplankton communities and to compare the influence of these variables on the taxonomic and functionalcomposition. β1-diversity (within plateaus) was the major component for phytoplankton, rotifers and microcrustaceanstaxonomic regional diversities. Planktonic communities were mainly constrained by macrophytes, fish, conductivity,dissolved organic carbon, altitude and spatial factors. The high dispersion of small individuals within plateaus tends tohomogenize these communities, as indicated by null model results and the high explanation of fine-scale spatial factorsin variation partitioning. This knowledge contributes to explaining the diversity patterns of planktonic communitiesof these valuable environments and to develop conservation strategies, considering both environmental heterogeneityand spatial effects.
