STREAM ECOSYSTEM FUNCTIONING UNDER REDUCED FLOW CONDITIONS

2007 ◽  
Vol 17 (6) ◽  
pp. 1797-1808 ◽  
Author(s):  
Zoë S. Dewson ◽  
Alexander B. W. James ◽  
Russell G. Death
Keyword(s):  
Ecosystem Functioning ◽  
Flow Conditions ◽  
Stream Ecosystem ◽  
Reduced Flow

scholarly journals Extreme temperature events alter stream ecosystem functioning

2021 ◽  
Vol 121 ◽  
pp. 106984
Author(s):  
Javier Pérez ◽  
Francisco Correa-Araneda ◽  
Naiara López-Rojo ◽  
Ana Basaguren ◽  
Luz Boyero
Keyword(s):  
Ecosystem Functioning ◽  
Extreme Temperature ◽  
Stream Ecosystem ◽  
Extreme Temperature Events

scholarly journals Continental-Scale Effects of Nutrient Pollution on Stream Ecosystem Functioning

Science ◽  
2012 ◽  
Vol 336 (6087) ◽  
pp. 1438-1440 ◽  
Author(s):  
G. Woodward ◽  
M. O. Gessner ◽  
P. S. Giller ◽  
V. Gulis ◽  
S. Hladyz ◽  
...  
Keyword(s):  
Ecosystem Functioning ◽  
Scale Effects ◽  
Nutrient Pollution ◽  
Stream Ecosystem ◽  
Continental Scale

scholarly journals Symmetry recovery of cell-free layer after bifurcations of small arterioles in reduced flow conditions: effect of RBC aggregation

2016 ◽  
Vol 311 (2) ◽  
pp. H487-H497 ◽  
Author(s):  
Yan Cheng Ng ◽  
Bumseok Namgung ◽  
Sim Leng Tien ◽  
Hwa Liang Leo ◽  
Sangho Kim
Keyword(s):  
Vascular Tone ◽  
Tissue Oxygenation ◽  
Vessel Diameter ◽  
Free Layer ◽  
Flow Conditions ◽  
Heterogeneous Distribution ◽  
Rbc Aggregation ◽  
Cell Free Layer ◽  
Reduced Flow

Heterogeneous distribution of red blood cells (RBCs) in downstream vessels of arteriolar bifurcations can be promoted by an asymmetric formation of cell-free layer (CFL) in upstream vessels. Consequently, the CFL widths in subsequent downstream vessels become an important determinant for tissue oxygenation (O2) and vascular tone change by varying nitric oxide (NO) availability. To extend our previous understanding on the formation of CFL in arteriolar bifurcations, this study investigated the formation of CFL widths from 2 to 6 vessel-diameter (2 D-6 D) downstream of arteriolar bifurcations in the rat cremaster muscle ( D = 51.5 ± 1.3 μm). As the CFL widths are highly influenced by RBC aggregation, the degree of aggregation was adjusted to simulate levels seen during physiological and pathological states. Our in vivo experimental results showed that the asymmetry of CFL widths persists along downstream vessels up to 6 D from the bifurcating point. Moreover, elevated levels of RBC aggregation appeared to retard the recovery of CFL width symmetry. The required length of complete symmetry recovery was estimated to be greater than 11 D under reduced flow conditions, which is relatively longer than interbifurcation distances of arterioles for vessel diameter of ∼50 μm. In addition, our numerical prediction showed that the persistent asymmetry of CFL widths could potentially result in a heterogeneous vasoactivity over the entire arteriolar network in such abnormal flow conditions.

Leaf-litter quality effects on stream ecosystem functioning: a comparison among five species

2013 ◽  
Vol 183 (3) ◽  
pp. 239-248 ◽  
Author(s):  
Aingeru Martínez ◽  
Aitor Larrañaga ◽  
Javier Pérez ◽  
Ana Basaguren ◽  
Jesús Pozo
Keyword(s):  
Leaf Litter ◽  
Ecosystem Functioning ◽  
Litter Quality ◽  
Stream Ecosystem

scholarly journals Impacts of marine-derived nutrients on stream ecosystem functioning

2003 ◽  
Vol 270 (1529) ◽  
pp. 2117-2123 ◽  
Author(s):  
Yixin Zhang ◽  
Junjiro N. Negishi ◽  
John S. Richardson ◽  
Renata Kolodziejczyk
Keyword(s):  
Ecosystem Functioning ◽  
Stream Ecosystem ◽  
Marine Derived Nutrients

scholarly journals No evidence of biodiversity effects on stream ecosystem functioning across green and brown food web pathways

2022 ◽  
Author(s):  
Naiara López‐Rojo ◽  
Luz Boyero ◽  
Javier Pérez ◽  
Ana Basaguren ◽  
Bradley J. Cardinale
Keyword(s):  
Food Web ◽  
Ecosystem Functioning ◽  
Stream Ecosystem ◽  
Biodiversity Effects

scholarly journals A Global Assessment of the Effects of Eucalyptus Plantations on Stream Ecosystem Functioning

Ecosystems ◽  
2018 ◽  
Vol 22 (3) ◽  
pp. 629-642 ◽  
Author(s):  
Verónica Ferreira ◽  
Luz Boyero ◽  
Clementina Calvo ◽  
Francisco Correa ◽  
Ricardo Figueroa ◽  
...  
Keyword(s):  
Ecosystem Functioning ◽  
Global Assessment ◽  
Stream Ecosystem ◽  
Eucalyptus Plantations

Growth‐enhanced salmon modify stream ecosystem functioning

2021 ◽  
Author(s):  
Julien Cucherousset ◽  
Line E. Sundt‐Hansen ◽  
Mathieu Buoro ◽  
Libor Závorka ◽  
Rémy Lassus ◽  
...  
Keyword(s):  
Ecosystem Functioning ◽  
Stream Ecosystem
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