SPATIAL CONSIDERATIONS FOR LINKING WATERSHED LAND COVER TO ECOLOGICAL INDICATORS IN STREAMS

Watershed land cover is widely used as a predictor of stream-ecosystem condition. However, numerous spatial factors can confound the interpretation of correlative analyses between land cover and stream indicators, particularly at broad spatial scales. We used a stream-monitoring data set collected from the Coastal Plain of Maryland, USA to address analytical challenges presented by (1) collinearity of land-cover class percentages, (2) spatial autocorrelation of land cover and stream data, (3) intercorrelations among and spatial autocorrelation within abiotic intermediaries that link land cover to stream biota, and (4) spatial arrangement of land cover within watersheds. We focused on two commonly measured stream indicators, nitrate-nitrogen (NO3–N) and macroinvertebrate assemblages, to evaluate how different spatial considerations may influence results. Partial correlation analysis of land-cover percentages revealed that simple correlations described relationships that could not be separated from the effe...

[1]  L. Johnson,et al.  Catchment and reach‐scale properties as indicators of macroinvertebrate species traits , 1997 .

[2]  D. Correll,et al.  Nutrient dynamics in an agricultural watershed: Observations on the role of a riparian forest , 1984 .

[3]  M. Barbour,et al.  Rapid bioassessment protocols for use in streams and wadeable rivers: periphyton , 1999 .

[4]  Pierre Legendre,et al.  Study of spatial components of forest cover using partial Mantel tests and path analysis , 1992 .

[5]  Zhi-jun Liu,et al.  Effects of land-use change on nutrient discharges from the Patuxent River watershed , 2003 .

[6]  Dominic Frigon,et al.  The Mantel test versus Pearson's correlation analysis : Assessment of the differences for biological and environmental studies , 2000 .

[7]  Peter R. Minchin,et al.  An evaluation of the relative robustness of techniques for ecological ordination , 1987 .

[8]  Michael J. Wiley,et al.  Empirical relationships between land use/cover and stream water quality in an agricultural watershed , 1988 .

[9]  T. Simons,et al.  Spatial autocorrelation and autoregressive models in ecology , 2002 .

[10]  S. K. Jenson,et al.  Extracting topographic structure from digital elevation data for geographic information-system analysis , 1988 .

[11]  J. David Allan,et al.  Assessing Biotic Integrity of Streams: Effects of Scale in Measuring the Influence of Land Use/Cover and Habitat Structure on Fish and Macroinvertebrates , 1999, Environmental management.

[12]  R. O'Neill,et al.  Predicting nutrient and sediment loadings to streams from landscape metrics: A multiple watershed study from the United States Mid-Atlantic Region , 2001, Landscape Ecology.

[13]  Pierre Legendre,et al.  DISTANCE‐BASED REDUNDANCY ANALYSIS: TESTING MULTISPECIES RESPONSES IN MULTIFACTORIAL ECOLOGICAL EXPERIMENTS , 1999 .

[14]  P. Legendre.  Spatial Autocorrelation: Trouble or New Paradigm? , 1993 .

[15]  J. Omernik,et al.  Stream nutrient levels and proximity of agricultural and forest land to streams: Some relationships , 1981 .

[16]  Song S. Qian,et al.  Two statistical methods for the detection of environmental thresholds , 2003 .

[17]  David L. Strayer,et al.  Effects of Land Cover on Stream Ecosystems: Roles of Empirical Models and Scaling Issues , 2003 .

[18]  D F Boesch,et al.  Chesapeake Bay eutrophication: scientific understanding, ecosystem restoration, and challenges for agriculture. , 2001, Journal of environmental quality.

[19]  B. Manly.  Randomization, Bootstrap and Monte Carlo Methods in Biology , 2018 .

[20]  P. Kazyak,et al.  Maryland Biological Stream Survey: A State Agency Program to Assess the Impact of Anthropogenic Stresses on Stream Habitat Quality and Biota , 1998 .

[21]  D. Weller,et al.  Sources of nutrient inputs to the Patuxent River estuary , 2003 .

[22]  J. David Allan,et al.  Landscape influences on stream biotic integrity assessed at multiple spatial scales , 1996, Landscape Ecology.

[23]  B. M. Weigel.  Development of Stream Macroinvertebrate Models That Predict Watershed and Local Stressors in Wisconsin , 2003, Journal of the North American Benthological Society.

[24]  J. D. Av I D A L L A N A N D L U C I N D,et al.  Catchment-scale analysis of aquatic ecosystems , 1997 .

[25]  N. Mantel.  The detection of disease clustering and a generalized regression approach. , 1967, Cancer research.

[26]  David S. Leigh,et al.  Stream macroinvertebrate response to catchment urbanisation (Georgia, U.S.A.) , 2003 .

[27]  Paul W. Seelbach,et al.  GIS‐BASED HYIROLOGIC MODELING OF RIPARIAN AREAS: IMPLICATIONS FOR STREAM WATER QUALITY 1 , 2001 .

[28]  R. M. Nally.  Regression and model-building in conservation biology, biogeography and ecology: The distinction between – and reconciliation of – ‘predictive’ and ‘explanatory’ models , 2000, Biodiversity & Conservation.

[29]  Charles P. Hawkins,et al.  Channel Morphology, Water Temperature, and Assemblage Structure of Stream Insects , 1997, Journal of the North American Benthological Society.

[30]  Kurt H. Riitters,et al.  Monitoring environmental quality at the landscape scale , 1997 .

[31]  R. Sponseller,et al.  Relationships between land use, spatial scale and stream macroinvertebrate communities , 2001 .

[32]  Richard C. Lathrop,et al.  Phosphorus Loads to Surface Waters: A Simple Model to Account for Spatial Pattern of Land Use , 1996 .

[33]  Dean L. Urban,et al.  Spatial Dependency of Vegetation–Environment Linkages in an Anthropogenically Influenced Wetland Ecosystem , 2004, Ecosystems.

[34]  Peter R. Minchin,et al.  An evaluation of the relative robustness of techniques for ecological ordination , 1987, Vegetatio.

[35]  Sarah C. Goslee,et al.  Extending community ecology to landscapes , 2002 .

[36]  D. Strayer,et al.  Effects of Land Cover on Stream Ecosystems: Roles of Empirical Models and Scaling Issues , 2003, Ecosystems.

[37]  Zhi-jun Liu,et al.  EFFECTS OF LAND COVER AND GEOLOGY ON STREAM CHEMISTRY IN WATERSHEDS OF CHESAPEAKE BAY 1 , 2000 .

[38]  Lester L. Yuan,et al.  Comparing responses of macroinvertebrate metrics to increasing stress , 2003, Journal of the North American Benthological Society.

[39]  W. Fagan.  CONNECTIVITY, FRAGMENTATION, AND EXTINCTION RISK IN DENDRITIC METAPOPULATIONS , 2002 .

[40]  K. Price,et al.  Preliminary comparison of landscape pattern-normalized difference vegetation index (NDVI) relationships to Central Plains stream conditions. , 2002, Journal of environmental quality.

[41]  D. Faith,et al.  Compositional dissimilarity as a robust measure of ecological distance , 1987, Vegetatio.

[42]  Koenig,et al.  Spatial autocorrelation of ecological phenomena. , 1999, Trends in ecology & evolution.

[43]  Bruce T. Milne,et al.  Effects of changing spatial scale on the analysis of landscape pattern , 1989, Landscape Ecology.

[44]  John F. Paul,et al.  Relationships between watershed Stressors and sediment contamination in Chesapeake Bay estuaries , 1996, Landscape Ecology.

[45]  Carolyn T. Hunsaker,et al.  Hierarchical Approaches to the Study of Water Quality in RiversSpatial scale and terrestrial processes are important in developing models to translate research results to management practices , 1995 .

[46]  Susan B. Norton,et al.  Can biological assessments discriminate among types of stress? A case study from the Eastern Corn Belt Plains ecoregion , 2000 .

[47]  A. Rosemond,et al.  Stream macroinvertebrate response to catchment urbanisation ( Georgia , , 2003 .

[48]  John Van Sickle,et al.  PROJECTING THE BIOLOGICAL CONDITION OF STREAMS UNDER ALTERNATIVE SCENARIOS OF HUMAN LAND USE , 2004 .

[49]  Daniel P. Faith,et al.  Compositional dissimilarity as a robust measure of ecological distance , 1987, Vegetatio.

[50]  J. Lyons,et al.  Impacts of Urbanization on Stream Habitat and Fish Across Multiple Spatial Scales , 2001, Environmental management.

[51]  John F. O'Callaghan,et al.  The extraction of drainage networks from digital elevation data , 1984, Comput. Vis. Graph. Image Process..

[52]  E. Stanley,et al.  Ecological Forecasting and the Urbanization of Stream Ecosystems: Challenges for Economists, Hydrologists, Geomorphologists, and Ecologists , 2003, Ecosystems.

[53]  Donald E. Weller,et al.  HEURISTIC MODELS FOR MATERIAL DISCHARGE FROM LANDSCAPES WITH RIPARIAN BUFFERS , 1998 .

[54]  Donald E. Weller,et al.  Relating nutrient discharges from watersheds to land use and streamflow variability , 1997 .

[55]  J. Meyer,et al.  Streams in the Urban Landscape , 2001 .

[56]  Curtis J. Richardson,et al.  Integrating Bioassessment and Ecological Risk Assessment: An Approach to Developing Numerical Water-Quality Criteria , 2003, Environmental management.

[57]  P. J. Wigington,et al.  Development of Landscape Metrics for Characterizing Riparian-Stream Networks , 1999 .

[58]  J. Sickle.  ERRATA.: "Analyzing Correlations Between Stream and Watershed Attributes" , 2005 .

[59]  J. T. Curtis,et al.  An Ordination of the Upland Forest Communities of Southern Wisconsin , 1957 .

[60]  G. Helfman,et al.  Stream biodiversity: the ghost of land use past. , 1998, Proceedings of the National Academy of Sciences of the United States of America.

[61]  C. Arnold,et al.  IMPERVIOUS SURFACE COVERAGE: THE EMERGENCE OF A KEY ENVIRONMENTAL INDICATOR , 1996 .

[62]  Donald E. Weller,et al.  Effects of agriculture on discharges of nutrients from Coastal Plain watersheds of Chesapeake Bay , 1997 .

[63]  R. Sokal,et al.  Multiple regression and correlation extensions of the mantel test of matrix correspondence , 1986 .

[64]  Deane Wang,et al.  Role of wetlands in reducing phosphorus loading to surface water in eight watersheds in the Lake Champlain Basin , 1996, Environmental management.

[65]  K. Moore,et al.  Chesapeake Bay: An Unprecedented Decline in Submerged Aquatic Vegetation , 1983, Science.

[66]  L E Cronin,et al.  Chesapeake Bay Anoxia: Origin, Development, and Significance , 1984, Science.

[67]  M. Fortin,et al.  Spatial pattern and ecological analysis , 1989, Vegetatio.