Dimensões longitudinais do impacto do uso do solo em ecossistemas de rios

Translated title of the contribution: Longitudinal dimensions of land-use impacts in riverine ecosystems

Rafael Feijó-Lima, Eugenia Zandonà, Bruna Suelen Da Silva, Flavia Tromboni, Timothy Peter Moulton, Steven Arnold Thomas

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Aim Rivers are linked longitudinally via the flow of water and the spatial dimensions of the changes in local riparian vegetation are still poorly understood. Recent modifications to the Native Vegetation Protection Law allow reduction of lateral buffer strips and amnesty for riparian vegetation removal, which might increase the fragmentation of native riparian vegetation, especially for Atlantic Rainforest streams. Methods We present two case studies conducted in a stream draining a fragmented landscape in the Atlantic Rainforest. The stream flows through two abrupt transitions (forest-pasture-forest) and we investigated how far the upstream effects of a given riparian condition could be detected in the downstream reach for a suite of variables. Results We show that the effects of land cover propagate downstream for both algal and macroinvertebrate communities. For some variables of interest, these effects might extend up to a km downstream from the transition. Conclusions There is a need to understand how the distribution of riparian forest remnants contribute to maintaining watershed-scale resilience to impacts.

Translated title of the contributionLongitudinal dimensions of land-use impacts in riverine ecosystems
Original languagePortuguese
Article numbere107
JournalActa Limnologica Brasiliensia
Volume31
DOIs
StatePublished - 2019
Externally publishedYes

Keywords

  • Atlantic Rainforest streams
  • Habitat fragmentation
  • Land cover
  • Longitudinal effect
  • Watersheds

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology
  • Water Science and Technology

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