The effects of land use changes on streams and rivers in mediterranean climates

Scott D. Cooper, P. Sam Lake, Sergi Sabater, John M. Melack, John Sabo

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

We reviewed the literature on the effects of land use changes on mediterranean river ecosystems (med-rivers) to provide a foundation and directions for future research on catchment management during times of rapid human population growth and climate change. Seasonal human demand for water in mediterranean climate regions (med-regions) is high, leading to intense competition for water with riverine communities often containing many endemic species. The responses of river communities to human alterations of land use, vegetation, hydrological, and hydrochemical conditions are similar in mediterranean and other climatic regions. High variation in hydrological regimes in med-regions, however, tends to exacerbate the magnitude of these responses. For example, land use changes promote longer dry season flows, concentrating contaminants, allowing the accumulation of detritus, algae, and plants, and fostering higher temperatures and lower dissolved oxygen levels, all of which may extirpate sensitive native species. Exotic species often thrive in med-rivers altered by human activity, further homogenizing river communities worldwide. We recommend that future research rigorously evaluate the effects of management and restoration practices on river ecosystems, delineate the cause-effect pathways leading from human perturbations to stream biological communities, and incorporate analyses of the effects of scale, land use heterogeneity, and high temporal hydrological variability on stream communities.

Original languageEnglish (US)
Pages (from-to)383-425
Number of pages43
JournalHydrobiologia
Volume719
Issue number1
DOIs
StatePublished - Nov 2013

Fingerprint

Mediterranean climate
land use change
rivers
river
algae
indigenous species
land use
time management
climatic region
ecosystems
ecosystem
hydrological regime
concentrating
endemic species
human population
native species
detritus
dissolved oxygen
effect
dry season

Keywords

  • Ecosystems
  • Land use
  • Mediterranean rivers
  • Streams

ASJC Scopus subject areas

  • Aquatic Science

Cite this

The effects of land use changes on streams and rivers in mediterranean climates. / Cooper, Scott D.; Lake, P. Sam; Sabater, Sergi; Melack, John M.; Sabo, John.

In: Hydrobiologia, Vol. 719, No. 1, 11.2013, p. 383-425.

Research output: Contribution to journalArticle

Cooper, Scott D. ; Lake, P. Sam ; Sabater, Sergi ; Melack, John M. ; Sabo, John. / The effects of land use changes on streams and rivers in mediterranean climates. In: Hydrobiologia. 2013 ; Vol. 719, No. 1. pp. 383-425.
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