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 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.

Leaf litter decomposition of dominant tree species of Namdapha National Park, Arunachal Pradesh, northeast India

2008 ◽  
Vol 13 (1) ◽  
pp. 25-34 ◽  
Author(s):  
Atiqur Rahman Barbhuiya ◽  
Ayyanadar Arunachalam ◽  
Prabhat Chandra Nath ◽  
Mohammed Latif Khan ◽  
Kusum Arunachalam
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Tree Species ◽  
National Park ◽  
Northeast India ◽  
Leaf Litter Decomposition ◽  
Arunachal Pradesh ◽  
Namdapha National Park

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
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