Hydrobiologia

, Volume 719, Issue 1, pp 93–118

Long-term population and community patterns of benthic macroinvertebrates and fishes in Northern California Mediterranean-climate streams

  • Vincent H. Resh
  • Leah A. Bêche
  • Justin E. Lawrence
  • Raphael D. Mazor
  • Eric P. McElravy
  • Alison P. O’Dowd
  • Deborah Rudnick
  • Stephanie M. Carlson
MEDITERRANEAN CLIMATE STREAMS Review Paper

DOI: 10.1007/s10750-012-1373-9

Cite this article as:
Resh, V.H., Bêche, L.A., Lawrence, J.E. et al. Hydrobiologia (2013) 719: 93. doi:10.1007/s10750-012-1373-9

Abstract

Long-term studies can document temporal patterns in freshwater ecosystems, and this is particularly important in mediterranean-climate (med-climate) regions because of strong interannual variation in precipitation amounts and consequently stream flow. We review long-term studies of populations and communities of benthic macroinvertebrate and fishes from sites throughout the med-climate region of California and develop generalities that may apply broadly to med-climate streams worldwide. Severe drought may result in community shifts, and alter age-structure in both macroinvertebrates and fishes. Within-year seasonal patterns in macroinvertebrate communities can be influenced by annual variability in flow regimes. Macroinvertebrate biological-monitoring metrics with consistently low intra-annual variability may be especially applicable in med-climate streams, as is the use of different temporal windows to describe reference periods to reduce influence of interannual variability on impact detection. Long-term data can be used to develop macroinvertebrate-based metrics that can either show or be independent of climate-change effects. Most macroinvertebrate species are temporally rare in their annual occurrence. Multiple components of natural flow regimes can favor native over invasive fishes. Long-term, quantitative information from med-climate streams is generally lacking, which is a hindrance to both management practices and development of appropriate ecological constructs.

Keywords

Biological monitoringLong-term variabilityBenthic macroinvertebratesFishesMediterranean climateStreams

Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • Vincent H. Resh
    • 1
  • Leah A. Bêche
    • 1
    • 2
  • Justin E. Lawrence
    • 1
  • Raphael D. Mazor
    • 1
    • 3
  • Eric P. McElravy
    • 1
  • Alison P. O’Dowd
    • 1
    • 4
  • Deborah Rudnick
    • 1
    • 5
  • Stephanie M. Carlson
    • 1
  1. 1.Department of Environmental SciencePolicy & Management, University of CaliforniaBerkeleyUSA
  2. 2.VilleurbanneFrance
  3. 3.Southern California Coastal Water Research ProjectCosta MesaUSA
  4. 4.Department of Environmental Science & ManagementHumboldt State UniversityArcataUSA
  5. 5.Integral Consulting IncSeattleUSA