Tuesday, May 19, 2009: 10:15 AM-12:15 PM
Pantlind Ballroom
Special Session - Application of Landscape, Bioassessment and Predictive Models in Stream Ecology
There is a heightened interest throughout the scientific community in innovative ecological modeling techniques. Many aquatic researchers are currently developing alternative types of predictive ecological models that use non-parametric, Bayesian, and path approaches. Historically, disturbance models relied primarily on multiple regression procedures, however, many newer ecological modeling techniques include classification and regression tree (CART) methods, structural equation modeling (SEM), multilevel-hierarchical and Bayesian models. This special session will emphasize the growing use of modeling techniques in stream ecology by highlighting current advances in quantitative ecological modeling methods. Papers presented will include the use of landscape models to illicit better causal linkages to stream biological attributes and the use of models to predict biological indicators of stream condition at unsampled sites. This session will also focus on some classic modeling techniques and application of newer predictive modeling methods that have the potential to provide managers with more powerful tools for understanding the factors associated with degradation of water quality and biological communities and allow them to make cost-effective decisions about how to avoid further degradation. However, O/E Rivspac type models will not presented, as this predictive modeling technique has previously been presented at NABS.
Moderator:Ian R. Waite
10:15 AM139Comparison of watershed-disturbance predictive models for stream benthic macroinvertebrates for three distinct western ecoregions
Jason T. May, Ian R. Waite, Larry R. Brown, Jonathan G. Kennen, Thomas F. Cuffney, James L. Orlando, Kimberly A. Jones
10:30 AM139bComparison of watershed disturbance predictive models for stream benthic macroinvertebrates: Multiple linear regression vs. alternative models
Ian R. Waite, Larry R. Brown, Jonathan G. Kennen, Thomas F. Cuffney, Jason T. May, James L. Orlando, Kimberly A. Jones
10:45 AM140Can we predict the presence of benthic diatom species in streams?
Christian Parker, Yangdong Pan, Scott L. Rollins
11:00 AM141Using a transient storage model to characterize habitat and biological conditions in urban streams of the Pacific Northwest, USA
Robert Black, Andrew Gendaszek, Christopher P. Konrad
11:15 AM142The relative importance of physicochemical stressors in urbanizing streams: Evidence from model selection and multi-model inference
Daren M. Carlisle, Wade L. Bryant
11:30 AM143Application of a bayesian hierarchical regression model to explain multiple trait distributions of lotic insects across environmental gradients
Matthew I. Pyne, N. LeRoy Poff, Jennifer A. Hoeting, Devin Johnson
11:45 AM144Understanding invertebrate responses to urbanization: The role of multilevel regression models
Thomas F. Cuffney, Roxolana Kashuba, Song Qian, Gerard McMahon
12:00 PM145The nature and consequences of systematic prediction errors in ecological assessments — or why it is inappropriate to be concerned about mice when there are tigers abroad
Charles P. Hawkins, Nora K. Burbank, Ryan A. Hill, John R. Olson
Sponsor:Special Sessions

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See more of The NABS 57th Annual Meeting (16-23 May, 2009)