Cited by 747Soil and Water Nutrient DynamicsFreshwater macroinvertebrate diversity and ecologyUrban Stormwater Management Solutions

Stream ecosystem function in urbanizing landscapes

Meyer, Judy L., Paul, Michael J., Taulbee, W. Keith·2005·Journal of the North American Benthological Society

Abstract

Ecologists have described an urban stream syndrome with attributes such as elevated nutrients and contaminants, increased hydrologic flashiness, and altered biotic assemblages. Ecosystem function probably also varies with extent of urbanization, although there are few stream networks in which this prediction has been studied. We examined functional characteristics of 6 tributaries of the Chattahoochee River near Atlanta, Georgia, USA, whose catchments differed in degree of urbanization. We conducted short-term NH4- and PO4-addition experiments to measure nutrient uptake velocity, which is the rate at which a nutrient moves through the water column toward the benthos. Both NH4 and soluble reactive P uptake velocities decreased as indicators of urbanization (i.e., % of catchment covered by high-intensity urban development) increased. The amount of fine benthic organic matter (FBOM) also decreased with increasing urbanization, and uptake velocities were directly related to FBOM. Uptake velocities were not related to ecosystem metabolism (gross primary production [GPP], community respiration [CR], or net ecosystem production) as measured with diel oxygen curves. However, NH4 uptake velocity increased as total stream metabolism (GPP + CR) increased in these streams as well as in other North American streams, suggesting that biotic demand drives NH4 uptake velocities across a wide range of stream ecosystems. Measures of ecosystem function responded differently to urbanization: ecosystem metabolism was not correlated with indicators of urbanization, although breakdown rate of Acer barbatum leaves was positively correlated and nutrient uptake velocities were negatively correlated with indicators of urbanization. Elevated nutrient concentrations associated with urbanization are usually attributed to increased inputs from point and non-point sources; our results indicate that concentrations also may be elevated because of reduced rates of nutrient removal. Altered ecosystem function is another symptom of an urban stream syndrome.

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Crossref · 10.1899/04-021.1

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  • Human impacts include changes in morphological structure (e.g., channelization) and hydrography, point source and diffuse pollution, and modified structure of biological assemblages by decrease of biotic richness and increase in tolerant species, species introduction, loss of sensitive species.

    “Humans impacts include changes the morphological structure of (e.g., channelization) and in hydrography, point source and diffuse pollution, and modified structure of biological assemblages by decrease of the biotic richness and increase in tolerant species, species introduction, loss of sensitive species etc. (see, e.g., [100,101].”

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Authors
Meyer, J. L., Paul, M. J., & Taulbee, W. K.
Affiliations
University of Georgia (US)
Venue
Journal of the North American Benthological Society
Published
2005-09
Volume
24
Issue
3
Pages
602-612
ISSN
  • 0887-3593 (ISSN-L)
  • 1937-237X
OpenAlex
W2071496376
Cited by
747
References
32
Citations by year
2026: 19 · 2025: 30 · 2024: 41 · 2023: 43 · 2022: 26 · 2021: 44 · 2020: 37 · 2019: 46 · 2018: 39 · 2017: 33 · 2016: 34 · 2015: 41 · 2014: 44 · 2013: 41 · 2012: 41
FWCI
20.33
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the North American Benthological Society (publishedVersion)
  • BioOne Complete (BioOne) (submittedVersion)
Funders
  • U.S. Environmental Protection Agency
  • U.S. Geological Survey
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Soil and Water Nutrient Dynamics
  • Physical Sciences › Environmental Science › Ecology › Freshwater macroinvertebrate diversity and ecology
  • Physical Sciences › Environmental Science › Environmental Engineering › Urban Stormwater Management Solutions
Keywords
urbanization, urban rivers, stream ecosystem function, ammonium uptake, phosphate uptake, ecosystem metabolism, gross primary productivity, community respiration, leaf breakdown, Chattahoochee River, nutrient removal, urban stream syndrome

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