Stabilization of fine gravels by net-spinning caddisfly larvae
نویسندگان
چکیده
منابع مشابه
Resilience of aquatic net-spinning caddisfly silk structures to common global stressors
1. Two of the most common consequences resulting from land use and climate change are increased fine sediment loads and shifts in hydrological regimes in freshwater ecosystems. 2. Although a growing number of studies indicate that these stressors are likely to directly affect community composition and organism physiology, little is known about how biological structures produced by aquatic organ...
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The objective of the study is to improve the understanding of relationships between multiple spatial scales and the development of micro-habitat as well as its co-dependence with the net-spinning caddisfly (Stenopsyche mamorada). In this study, two target riffles located in the Asa River basin were investigated during the spring of 2006. Three major findings of this research were that; 1. the t...
متن کاملBehavioral correction to prevent overhydration and increase survival by larvae of the net-spinning caddisflies in relation to water flow.
We report behavioral regulation of body water content in caddisfly larvae, Hydropsyche morosa and Cheumatopsyche pettiti, by selecting microhabitats with different water flow rates. The purpose of our study was to examine features necessary for survival in the same apparent habitat, because the two species co-exist in riffle areas of freshwater streams. Both species are highly sensitive to wate...
متن کاملSex differences in cooperative silk-spinning by weaver ant larvae.
Final-instar larvae of weaver ants (Oecophylla longinoda) use their silk for nest construction rather than for cocoon spinning; this commitment represents a shift from entirely selfish to entirely cooperative behavior that occurred after the emergence of the phylogenetically advanced subfamily Formicinae. Male larvae were found to have smaller silk glands and to contribute substantially less si...
متن کاملGlobal Asymptotic Stabilization of a Spinning
The dynamical equations for a spinning top are derived in which the orientation is speciied by a complex variable using stereographic projection of Poisson's equations. Necessary and suucient conditions for Lyapunov stability of the uncontrolled motion of the spinning top are derived using the Energy-Casimir method. Control laws that globally asymptotically stabilize the spinning top to the sle...
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ژورنال
عنوان ژورنال: Earth Surface Processes and Landforms
سال: 2009
ISSN: 0197-9337,1096-9837
DOI: 10.1002/esp.1750