Effects of Grass Seed Agriculture on Aquatic Invertebrate Communities Inhabiting Seasonal Wetlands of the Southern Willamette Valley, Oregon

Wetlands ◽  
2013 ◽  
Vol 33 (5) ◽  
pp. 921-937 ◽  
Author(s):  
Lance A. Wyss ◽  
Bruce D. Dugger ◽  
Alan T. Herlihy ◽  
William J. Gerth ◽  
Judith L. Li
Keyword(s):  
Aquatic Invertebrate ◽  
Willamette Valley ◽  
Seasonal Wetlands ◽  
Invertebrate Communities ◽  
Grass Seed

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.

scholarly journals Patchiness of River–Groundwater Interactions within Two Floodplain Landscapes and Diversity of Aquatic Invertebrate Communities

Ecosystems ◽  
2003 ◽  
Vol 6 (8) ◽  
pp. 707-722 ◽  
Author(s):  
Matthias Brunke ◽  
Eduard Hoehn ◽  
Tom Gonser
Keyword(s):  
Aquatic Invertebrate ◽  
Invertebrate Communities

A long-term assessment of pesticide mixture effects on aquatic invertebrate communities

2015 ◽  
Vol 35 (1) ◽  
pp. 218-232 ◽  
Author(s):  
Simone Hasenbein ◽  
Sharon P. Lawler ◽  
Juergen Geist ◽  
Richard E. Connon
Keyword(s):  
Aquatic Invertebrate ◽  
Pesticide Mixture ◽  
Invertebrate Communities ◽  
Mixture Effects

Effects of imidacloprid and a neonicotinoid mixture on aquatic invertebrate communities under Mediterranean conditions

2018 ◽  
Vol 204 ◽  
pp. 130-143 ◽  
Author(s):  
Andreu Rico ◽  
Alba Arenas-Sánchez ◽  
Julia Pasqualini ◽  
Ariadna García-Astillero ◽  
Laura Cherta ◽  
...  
Keyword(s):  
Aquatic Invertebrate ◽  
Invertebrate Communities ◽  
Mediterranean Conditions

Aquatic invertebrate communities of a south German bog stream, a multivariate approach

2001 ◽  
Vol 27 (7) ◽  
pp. 3886-3890
Author(s):  
J. Tham ◽  
J. Blank ◽  
W. Jansen ◽  
H. Rahmann
Keyword(s):  
Aquatic Invertebrate ◽  
Multivariate Approach ◽  
Invertebrate Communities

Loss of ash trees in riparian forests from emerald ash borer infestations has implications for aquatic invertebrate leaf-litter consumers

2019 ◽  
Vol 49 (2) ◽  
pp. 134-144 ◽  
Author(s):  
David Kreutzweiser ◽  
David Nisbet ◽  
Paul Sibley ◽  
Taylor Scarr
Keyword(s):  
Organic Matter ◽  
Leaf Litter ◽  
Food Source ◽  
Emerald Ash Borer ◽  
Riparian Forests ◽  
Aquatic Invertebrate ◽  
High Quality ◽  
Invertebrate Communities ◽  
Leaf Packs ◽  
Ash Trees

Rapid loss of ash (Fraxinus spp.) trees in riparian forests from an invasive insect, the emerald ash borer (EAB; Agrilus planipennis Fairmaire, 1888), could pose risk of altering organic matter inputs to water bodies that underpin many aquatic ecosystem processes. We measured the composition of riparian forests and their leaf-litter contributions to headwater streams and determined the relative palatability of ash leaves and leaves of three other common riparian trees to aquatic invertebrate leaf-litter consumers (the stonefly (Pteronarcys sp.) and the cranefly (Tipula sp.)) in laboratory microcosms and whole invertebrate communities in forest streams. Ash trees contributed, on average, 24% to riparian tree density and 20% to total litterfall. Among the four common streamside trees accounting for 65% of total litterfall, ash was the first or second most preferred food source for consumers. Leaf packs without ash decomposed at slower rates than packs containing 25%–100% ash leaves. Preferential feeding on ash leaves infers a high-quality food source selected by consumers, and this concurred with comparatively high N content and low C–N ratio of ash leaves. Aquatic invertebrate communities on leaf packs in streams differed among leaf mixtures with or without ash, although community dissimilarity was low. The loss of ash in riparian forests represents an EAB-induced reduction in a high-quality resource subsidy to organic matter consumers in streams. We discuss how this has implications for risk predictions and management response strategies.

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