scholarly journals Omnivory and opportunism characterize food webs in a large dry-tropics river system

2014 ◽  
Vol 33 (1) ◽  
pp. 142-158 ◽  
Author(s):  
Melanie L. Blanchette ◽  
Aaron M. Davis ◽  
Timothy D. Jardine ◽  
Richard G. Pearson
Keyword(s):  
Food Webs ◽  
River System ◽  
Dry Tropics

Use of Stable Isotopes to Trace Municipal Wastewater Effluents into Food Webs within a Highly Developed River System

2014 ◽  
Vol 31 (9) ◽  
pp. 1093-1100 ◽  
Author(s):  
H. A. Loomer ◽  
K. D. Oakes ◽  
S. L. Schiff ◽  
W. D. Taylor ◽  
M. R. Servos
Keyword(s):  
Stable Isotopes ◽  
Food Webs ◽  
Municipal Wastewater ◽  
River System ◽  
Wastewater Effluents

scholarly journals Effects of Inundation on Water Chemistry and Invertebrates in Floodplain Wetlands

2021 ◽  
Author(s):  
Wing (Iris) Tsoi ◽  
Ivor Growns ◽  
Mark Southwell ◽  
Darren Ryder ◽  
Paul Frazier
Keyword(s):  
Water Chemistry ◽  
Food Webs ◽  
River System ◽  
Floodplain Wetlands ◽  
Floodplain Wetland ◽  
Regulated Rivers ◽  
The North ◽  
Murray Darling Basin ◽  
Floodplain Inundation ◽  
Wetland Processes

Abstract Floodplain wetlands play a significant role in the storage of sediment and water and support high levels of nutrient cycling that lead to substantial primary production and high biodiversity. This storage, cycling and production system is driven by intermittent inundation. In regulated rivers the link between channel flows and floodplain inundation is often impacted with reduction in the frequency and duration of inundation. Managed floodplain inundation is us being used as a tool to help restore floodplain wetland processes and rehabilitate river systems. However, the use of managed water for the environment remains contentious and it is important to quantify the outcomes of re-introducing water to floodplain wetland systems. We examined the effects of environmental floodplain watering on water chemistry and three groups of invertebrates, including benthic and pelagic invertebrates and macroinvertebrates, in wetlands on the Gwydir River system in the north of the Murray-Darling Basin. We hypothesised that wetlands that were inundated for longer periods of time would have altered water chemistry and support a greater richness and abundance of invertebrates, thus altering their assemblage structures. Water chemistry and the assemblage structure of all three invertebrate groups in the wetlands was significantly influenced by the time since connection (TSC) to their respective rivers and therefore inundation period. The microinvertebrate abundance of was positively associated with TSC, but not macroinvertebrates. This suggests that the duration of connection between the channel and floodplain is important in maintaining the ecology and food webs in the wetlands.

Adult aquatic insects: Potential contributors to riparian food webs in Australia's wet-dry tropics

2002 ◽  
Vol 27 (5) ◽  
pp. 515-526 ◽  
Author(s):  
Romeny J. Lynch ◽  
Stuart E. Bunn ◽  
Carla P. Catterall
Keyword(s):  
Food Webs ◽  
Aquatic Insects ◽  
Dry Tropics ◽  
Adult Aquatic Insects

Managing Salinity in the Upper Santa Clara River System of California

2009 ◽  
Author(s):  
Nathan Brown ◽  
Brian Louie ◽  
Frank Guerrero ◽  
Terry Foreman ◽  
Sorab Panday ◽  
...  
Keyword(s):  
River System
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