Microbial and macroinvertebrate communities, but not leaf decomposition, change along a mining-induced salinity gradient

2019 ◽  
Vol 64 (4) ◽  
pp. 671-684 ◽  
Author(s):  
Ross Vander Vorste ◽  
Anthony J. Timpano ◽  
Catie Cappellin ◽  
Brian D. Badgley ◽  
Carl E. Zipper ◽  
...  
Keyword(s):  
Salinity Gradient ◽  
Leaf Decomposition ◽  
Macroinvertebrate Communities

scholarly journals Aquatic bryophytes play a key role in sediment-stressed boreal headwater streams

Hydrobiologia ◽  
2019 ◽  
Vol 847 (2) ◽  
pp. 605-615 ◽  
Author(s):  
Jarno Turunen ◽  
Timo Muotka ◽  
Jukka Aroviita
Keyword(s):  
Headwater Streams ◽  
Fine Sediment ◽  
Leaf Decomposition ◽  
Ecosystem Functions ◽  
Macroinvertebrate Communities ◽  
Fine Sediments ◽  
Key Factor ◽  
Sediment Cover ◽  
Negative Impacts ◽  
Stream Biodiversity

AbstractForestry-related land use can cause increasing instream sedimentation, burying and eradicating stream bryophytes, with severe ecological consequences. However, there is limited understanding of the relative roles and overall importance of the two frequently co-occurring stressors, increased fine sediments and loss of bryophytes, to stream biodiversity and ecosystem functions. By using random forest modeling and partial dependence functions, we studied the relative importance of stream bryophytes and fine sediments to multiple biological endpoints (leaf-decaying fungi, diatom, bryophyte, and benthic macroinvertebrate communities; leaf decomposition) using field survey data from headwater streams. Stream bryophyte abundance and richness were negatively related to fine sediment cover, highlighting the detrimental effect of sedimentation on bryophytes. However, bryophyte abundance was consistently more important a determinant of variation in community composition than was fine sediment cover. Leaf decomposition was influenced by shredder abundance, water temperature and, to a lesser degree, stream size. Our results suggest that the loss of stream bryophytes due to increasing sedimentation, rather than fine sediments per se, seems to be the key factor affecting multiple biological responses. Enhancing the re-establishment of bryophyte stands could partly compensate for the negative impacts of sedimentation on bryophytes and, consequently, on several other components of boreal stream ecosystems.

Assessing the influence of wildfire on leaf decomposition and macroinvertebrate communities in boreal streams using mixed‐species leaf packs

2020 ◽  
Vol 65 (6) ◽  
pp. 1047-1062
Author(s):  
Jordan L. Musetta‐Lambert ◽  
David P. Kreutzweiser ◽  
Paul K. Sibley
Keyword(s):  
Leaf Decomposition ◽  
Macroinvertebrate Communities ◽  
Mixed Species ◽  
Leaf Packs ◽  
Boreal Streams

Monitoring Changes in Freshwater Macroinvertebrate Communities Along a Salinity Gradient Using Artificial Substrates

2006 ◽  
Vol 116 (1-3) ◽  
pp. 529-542 ◽  
Author(s):  
Christophe Piscart ◽  
Jean-Claude Moreteau ◽  
Jean-Nicolas Beisel
Keyword(s):  
Salinity Gradient ◽  
Artificial Substrates ◽  
Macroinvertebrate Communities

In situ experimental study of reed leaf decomposition along a full salinity gradient

2009 ◽  
Vol 85 (3) ◽  
pp. 497-506 ◽  
Author(s):  
Victor Quintino ◽  
Franca Sangiorgio ◽  
Fernando Ricardo ◽  
Renato Mamede ◽  
Adília Pires ◽  
...  
Keyword(s):  
Experimental Study ◽  
Salinity Gradient ◽  
Leaf Decomposition

Biodiversity and Structure of Macroinvertebrate Communities Along a Small Permanent Salinity Gradient (Meurthe River, France)

Hydrobiologia ◽  
2005 ◽  
Vol 551 (1) ◽  
pp. 227-236 ◽  
Author(s):  
Christophe Piscart ◽  
Jean-Claude Moreteau ◽  
Jean-Nicolas Beisel
Keyword(s):  
Salinity Gradient ◽  
Macroinvertebrate Communities

Environmental controls on estuarine nitrifying communities along a salinity gradient

2017 ◽  
Vol 80 (2) ◽  
pp. 167-180 ◽  
Author(s):  
M Monteiro ◽  
J Séneca ◽  
L Torgo ◽  
DFR Cleary ◽  
NCM Gomes ◽  
...  
Keyword(s):  
Salinity Gradient ◽  
Environmental Controls
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