Zobrazeno 1 - 10
of 11
pro vyhledávání: '"David L. Penrose"'
Publikováno v:
JAWRA Journal of the American Water Resources Association. 51:68-83
The Stream Performance Assessment (SPA), a new rapid assessment method, was applied to 93 restored, 21 impaired, 29 reference, and 13 reference streams with some incision throughout North Carolina. Principal component analysis (PCA) indicated restore
Autor:
Barbara A. Doll, James Blackwell, Jean Spooner, Mark Fernandez, Joseph Usset, Gregory D. Jennings, David L. Penrose
Publikováno v:
Water, Vol 8, Iss 4, p 143 (2016)
Water; Volume 8; Issue 4; Pages: 143
Water; Volume 8; Issue 4; Pages: 143
Five rapid visual stream assessment methods were applied to 65 restored streams in North Carolina, and the results were correlated with measured macroinvertebrate community metrics to evaluate predictive ability. The USEPA Rapid Bioassessment Protoco
Autor:
Christy R. Violin, David L. Penrose, Elizabeth B. Sudduth, Emily S. Bernhardt, Brooke A. Hassett, Peter Cada
Publikováno v:
Ecological Applications. 21:1932-1949
Streams, as low-lying points in the landscape, are strongly influenced by the stormwaters, pollutants, and warming that characterize catchment urbanization. River restoration projects are an increasingly popular method for mitigating urban insults. D
Publikováno v:
Journal of the North American Benthological Society. 28:80-92
Channel reconfiguration is a popular but controversial approach to river restoration, and ecological responses to channel reconfiguration have not been rigorously assessed. We compared physical-habitat variables, taxonomic and functional-trait divers
Publikováno v:
Ecological Engineering. 27:228-241
This paper describes the development, application, and evaluation of a method for assessing the effectiveness of stream restoration activities in enhancing four lotic habitats based on the presence of habitat specialists. Three genera were identified
Autor:
David L. Penrose, Samuel M. Call
Publikováno v:
Journal of the North American Benthological Society. 14:203-209
State water-pollution biologists are playing an increasing role in the activities of volunteer monitoring organizations. These activities include training volunteers on basic ecological concepts, conducting taxonomic workshops, and making a variety o
Autor:
Joseph Usset, Mark Fernandez, David L. Penrose, Jean Spooner, Gregory D. Jennings, Barbara A. Doll, James Blackwell
Publikováno v:
Water, Vol 8, Iss 4, p 151 (2016)
Water; Volume 8; Issue 4; Pages: 151
Water; Volume 8; Issue 4; Pages: 151
Restored stream reaches at 79 sites across North Carolina were sampled for aquatic macroinvertebrates using a rapid bioassessment protocol. Morphological design parameters and geographic factors, including watershed and landscape parameters (e.g., va
Autor:
Alfred M. Duda, David L. Penrose
Publikováno v:
Journal of the American Water Resources Association. 16:1034-1040
An intensive water quality investigation was conducted in western North Carolina to determine whether water quality problems existed from point and nonpoint source inputs of sediment from surface mining activities. Depth integrated measurements of se
Publikováno v:
Freshwater Biology. 9:381-392
SUMMARY. The influence of exposure time upon macro-invertebrate colonization on modified Hester-Dendy substrate samplers was investigated over a 60-day period. The duration of exposure affected the number of individuals, taxa and community diversity.
Autor:
David R. Lenat, David L. Penrose
Publikováno v:
Archives of environmental contamination and toxicology. 11(3)
As part of a statewide evaluation of the impact of nonpoint sources of water pollution (relevant to Section 208 of the Federal Water Pollution Control Act Amendments of 1972), a study was conducted to determine the effects of surface runoff from appl