Role of Debris Dams in the Structure and Functioning of Low-Gradient Headwater Streams

Ecology ◽  
1989 ◽  
Vol 70 (3) ◽  
pp. 764-775 ◽  
Author(s):  
Leonard A. Smock ◽  
Glenn M. Metzler ◽  
James E. Gladden
Keyword(s):  
Headwater Streams ◽  
Debris Dams

Experimental evidence quantifying the role of benthic invertebrates in organic matter dynamics of headwater streams

1990 ◽  
Vol 23 (2) ◽  
pp. 281-299 ◽  
Author(s):  
THOMAS F. CUFFNEY ◽  
J. BRUCE WALLACE ◽  
G. JOHN LUGTHART
Keyword(s):  
Organic Matter ◽  
Experimental Evidence ◽  
Benthic Invertebrates ◽  
Headwater Streams ◽  
Organic Matter Dynamics

Ecology and Role of Headwater Streams

2009 ◽  
pp. 357-365 ◽  
Author(s):  
W.H. McDowell
Keyword(s):  
Headwater Streams

Debris dams as habitat for aquatic invertebrates in forested headwater streams: a large-scale field experiment

2019 ◽  
Vol 70 (5) ◽  
pp. 734
Author(s):  
Brenda R. Baillie ◽  
Brendan J. Hicks ◽  
Ian D. Hogg ◽  
Michael R. van den Heuvel ◽  
Mark O. Kimberley
Keyword(s):  
Large Scale ◽  
Aquatic Invertebrates ◽  
Headwater Streams ◽  
Dam Removal ◽  
Aquatic Invertebrate ◽  
Invertebrate Communities ◽  
Debris Dams ◽  
Scale Field ◽  
Large Scale Field ◽  
Debris Dam

To evaluate the effects of debris dams on aquatic invertebrate communities, we sampled benthic invertebrates in debris dams and riffles in three forested headwater streams in New Zealand. As part of a large-scale field experiment, debris dams were subsequently removed from three treatment sections in each of the streams to assess effects on invertebrate communities. Prior to debris dam removal, total invertebrate densities in debris dams were not significantly different from those in riffles. However, densities of Ephemeroptera, Plecoptera and Trichoptera taxa were significantly higher in debris dams than in riffles. Debris dams contained a higher number of less common taxa (defined as <1% of total catch) and significantly higher densities of shredders. Densities for Coleoptera, Diptera and Trichoptera taxa were significantly higher in the autumn than in the spring. Non-metric multidimensional scaling axis scores indicated that both habitat and season had a significant effect on aquatic invertebrate community composition. At the reach scale, the effects of debris dam removal on the aquatic invertebrate communities were not statistically detectable because debris dams comprised only a small proportion of total habitat. However, these data highlight the importance of debris dams in contributing to the diversity of aquatic invertebrates in forested headwater streams.

Role of Organic Debris Dams in Regulating the Export of Dissolved and Particulate Matter from a Forested Watershed

Ecology ◽  
1981 ◽  
Vol 62 (5) ◽  
pp. 1234-1243 ◽  
Author(s):  
Robert E. Bilby
Keyword(s):  
Particulate Matter ◽  
Forested Watershed ◽  
Organic Debris ◽  
Debris Dams

scholarly journals The role of stranding and inundation on leaf litter decomposition in headwater streams

2013 ◽  
Vol 1 ◽  
Author(s):  
Hannah L. Riedl ◽  
Laurie B. Marczak ◽  
Natalie A. McLenaghan ◽  
Trent M. Hoover
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Headwater Streams ◽  
Leaf Litter Decomposition

Macroinvertebrate community composition and richness along extreme gradients: The role of local, catchment, and climatic variables in Patagonian headwater streams

2021 ◽  
Author(s):  
Anna Astorga Roine ◽  
Brian Reid ◽  
Luis Uribe ◽  
Paulo Moreno‐Meynard ◽  
Pablo Fierro ◽  
...  
Keyword(s):  
Community Composition ◽  
Headwater Streams ◽  
Macroinvertebrate Community ◽  
Climatic Variables

scholarly journals Ecosystem recovery in restored headwater streams: the role of enhanced leaf retention

2002 ◽  
Vol 39 (1) ◽  
pp. 145-156 ◽  
Author(s):  
Timo Muotka ◽  
Pekka Laasonen
Keyword(s):  
Headwater Streams ◽  
Ecosystem Recovery ◽  
Leaf Retention

Debris dams and the relief of headwater streams

Geomorphology ◽  
2006 ◽  
Vol 82 (1-2) ◽  
pp. 84-97 ◽  
Author(s):  
Stephen T. Lancaster ◽  
Gordon E. Grant
Keyword(s):  
Headwater Streams ◽  
Debris Dams

Hydraulic geometry and resistance to flow in headwater streams in the Northwest Territories, Canada

2012 ◽  
Vol 39 (12) ◽  
pp. 1252-1263 ◽  
Author(s):  
Abul Basar M. Baki ◽  
David Z. Zhu ◽  
Gregory Courtice
Keyword(s):  
Northwest Territories ◽  
Headwater Streams ◽  
Dominant Role ◽  
Hydraulic Geometry ◽  
Power Functions ◽  
Mean Velocity ◽  
Mean Values ◽  
Mean Width ◽  
The Mean

Hydraulic geometry and resistance to flow of headwater streams in the Northwest Territories of Canada are presented in this paper. Power functions describe at-a-station hydraulic geometry relationships very well, where positive exponents of width, depth, and velocity have mean values of 0.14, 0.17, and 0.65, respectively. These values were found to be lower, much lower, and higher than corresponding mean values of width, depth, and velocity exponents found in the literature. The mean velocity exponent is greater than mean width and depth exponents combined, demonstrating the dominant role of velocity in accommodating varying discharge in all streams evaluated in this study. Darcy–Weisbach resistance factor (f) and Manning’s n individually vary over three orders of magnitude, 1.0–267 and 0.085–1.37, respectively. Despite large ranges, hydraulic relations are described effectively through power equations and Keulegan function curves fitted for each section.

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