Assessment of disturbance at three spatial scales in two large tropical reservoirs.

ABSTRACT: Large reservoirs are an increasingly common feature across tropical landscapes because of their importance for water supply, flood control and hydropower, but their ecological conditions are infrequently evaluated. Our objective was to assess the range of disturbances for two large tropical reservoirs and their influences on benthic macroinvertebrates. We tested three hypotheses: i) a wide variation in the level of environmental disturbance can be observed among sites in the reservoirs; ii) the two reservoirs would exhibit a different degree of disturbance level; and iii) the magnitude of disturbance would influence the structure and composition of benthic assemblages. For each reservoir, we assessed land use (macroscale), physical habitat structure (mesoscale), and water quality (microsca

SUBMITTER: de Morais L 

PROVIDER: S-EPMC6060419 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature