Flow regime change alters shredder identity but not leaf litter decomposition in headwater streams affected by severe, permanent drying

2021 ◽  
Author(s):  
Nicole Carey ◽  
Edwin T. Chester ◽  
Belinda J. Robson
Keyword(s):  
Flow Regime ◽  
Leaf Litter ◽  
Litter Decomposition ◽  
Regime Change ◽  
Headwater Streams ◽  
Leaf Litter Decomposition

scholarly journals Response of nutrients, biofilm, and benthic insects to salmon carcass addition

2006 ◽  
Vol 63 (6) ◽  
pp. 1230-1241 ◽  
Author(s):  
Shannon M Claeson ◽  
Judith L Li ◽  
Jana E Compton ◽  
Peter A Bisson
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Headwater Streams ◽  
Dry Mass ◽  
Trophic Levels ◽  
Leaf Litter Decomposition ◽  
Ammonium Concentration ◽  
Benthic Insects ◽  
Salmon Carcass ◽  
Density And Biomass

Salmon carcass addition to streams is expected to increase stream productivity at multiple trophic levels. This study examined stream nutrient (nitrogen, phosphorus, and carbon), epilithic biofilm (ash-free dry mass and chlorophyll a), leaf-litter decomposition, and macroinvertebrate (density and biomass) responses to carcass addition in three headwater streams of southwestern Washington State, USA. We used stable isotopes (δ13C and δ15N) to trace incorporation of salmon-derived (SD) nutrients into stream food webs. SD nutrients were assimilated by biofilm, benthic insects (Perlidae and Limnephilidae spp.), and age-1 steelhead (Oncorhynchus mykiss gairdneri). SD nutrients peaked ~2 weeks after carcass addition for insects and fish feeding on carcasses, but indirect uptake of SD nutrients by biofilm and insects was delayed by ~2 months. A strong stable isotope signal did not always correspond with measurable biological change. At reaches 10–50 m downstream from carcasses, ammonium concentration, leaf-litter decomposition, and benthic insect density all increased relative to upstream control sites. The strongest responses and greatest SD-nutrient uptake were observed 10 m from decomposing carcasses, with effects generally decreasing to undetectable levels 250 m downstream. Carcass addition to headwater streams can have a transient effect on primary and secondary trophic levels, but responses may be limited to specific taxa near carcass locations.

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

Effect of small reservoirs on leaf litter decomposition in Mediterranean headwater streams

Hydrobiologia ◽  
2012 ◽  
Vol 691 (1) ◽  
pp. 135-146 ◽  
Author(s):  
Margarita Menéndez ◽  
Enrique Descals ◽  
Tecla Riera ◽  
Oscar Moya
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Headwater Streams ◽  
Leaf Litter Decomposition ◽  
Small Reservoirs

Leaf litter decomposition of native and introduced tree species of contrasting quality in headwater streams: How does the regional setting matter?

2013 ◽  
Vol 458-460 ◽  
pp. 197-208 ◽  
Author(s):  
J. Jesús Casas ◽  
Aitor Larrañaga ◽  
Margarita Menéndez ◽  
Jesús Pozo ◽  
Ana Basaguren ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Tree Species ◽  
Headwater Streams ◽  
Leaf Litter Decomposition ◽  
Regional Setting

scholarly journals Leaf-litter decomposition in headwater streams: a comparison of the process among four climatic regions

2011 ◽  
Vol 30 (4) ◽  
pp. 935-950 ◽  
Author(s):  
Jesús Pozo ◽  
Jesús Casas ◽  
Margarita Menéndez ◽  
Salvador Mollá ◽  
Inmaculada Arostegui ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Headwater Streams ◽  
Leaf Litter Decomposition ◽  
Climatic Regions

scholarly journals Benthic algae stimulate leaf litter decomposition in detritus-based headwater streams: a case of aquatic priming effect?

Ecology ◽  
2013 ◽  
Vol 94 (7) ◽  
pp. 1604-1613 ◽  
Author(s):  
Michael Danger ◽  
Julien Cornut ◽  
Eric Chauvet ◽  
Paola Chavez ◽  
Arnaud Elger ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Priming Effect ◽  
Headwater Streams ◽  
Benthic Algae ◽  
Leaf Litter Decomposition

Litter chemistry prevails over litter consumers in mediating effects of past steel industry activities on leaf litter decomposition

2015 ◽  
Vol 537 ◽  
pp. 213-224 ◽  
Author(s):  
Pierre Lucisine ◽  
Antoine Lecerf ◽  
Michaël Danger ◽  
Vincent Felten ◽  
Delphine Aran ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Steel Industry ◽  
Leaf Litter Decomposition ◽  
Litter Chemistry ◽  
Mediating Effects

Effect of vertebrate exclusion on leaf litter decomposition in the coastal Atlantic forest of southeast Brazil

2021 ◽  
Author(s):  
Gabriela Garcia Medeiros ◽  
Juliana Antonio ◽  
Michelle Harrison ◽  
Luciana Della Coletta ◽  
Amin Soltangheisi ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Atlantic Forest ◽  
Leaf Litter Decomposition ◽  
Southeast Brazil
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