id:"swepub:oai:lup.lub.lu.se:8f21f90b-6a4e-4248-9316-772314398564"
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- Ocko, Samuel A.Massachusetts Institute of Technology,Stanford University (författare)
Solar-powered ventilation of African termite mounds
- Artikel/kapitelEngelska2017
Förlag, utgivningsår, omfång ...
- The Company of Biologists,2017
- 10 s.
Nummerbeteckningar
- LIBRIS-ID:oai:lup.lub.lu.se:8f21f90b-6a4e-4248-9316-772314398564
- https://lup.lub.lu.se/record/8f21f90b-6a4e-4248-9316-772314398564URI
- https://doi.org/10.1242/jeb.160895DOI
Kompletterande språkuppgifter
- Språk:engelska
- Sammanfattning på:engelska
Ingår i deldatabas
- SwePubSwePub
Klassifikation
Anmärkningar
- How termite mounds function to facilitate climate control is still only partially understood. Recent experimental evidence in the mounds of a single species, the south Asian termite Odontotermes obesus, suggests that the daily oscillations of radiant heating associated with diurnal insolation patterns drive convective flow within them. How general this mechanism is remains unknown. To probe this, we consider the mounds of the African termite Macrotermes michaelseni, which thrives in a very different environment. By directly measuring air velocities and temperatures within the mound, we see that the overall mechanisms and patterns involved are similar to that in the south Asian species. However, there are also some notable differences between the physiology of these mounds associated with the temporal variations in radiant heating patterns and CO2 dynamics. Because of the difference between direct radiant heating driven by the position of the sun in African conditions, and the more shaded south Asian environments, we see changes in the convective flows in the two types of mounds. Furthermore, we also see that the south Asian mounds showa significant overturning of stratified gases, once a day, while the African mounds have a relatively uniform concentration of CO2. Overall, our observations show that despite these differences, termite architectures can harness periodic solar heating to drive ventilation inside them in very different environments, functioning as an external lung, with clear implications for human engineering.
Ämnesord och genrebeteckningar
- NATURVETENSKAP Biologi Biofysik hsv//swe
- NATURAL SCIENCES Biological Sciences Biophysics hsv//eng
- Animal architecture
- Termite mounds
- Ventilation
Biuppslag (personer, institutioner, konferenser, titlar ...)
- King, HunterHarvard University (författare)
- Andreen, DavidLund University,Lunds universitet,Institutionen för arkitektur och byggd miljö,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Architecture and Built Environment,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)arki-dae (författare)
- Bardunias, PaulState University of New York College of Environmental Science and Forestry (författare)
- Turner, J. ScottState University of New York College of Environmental Science and Forestry (författare)
- Soar, RupertNottingham Trent University (författare)
- Mahadevan, L.Harvard University (författare)
- Massachusetts Institute of TechnologyStanford University (creator_code:org_t)
Sammanhörande titlar
- Ingår i:Journal of Experimental Biology: The Company of Biologists220:18, s. 3260-32690022-09491477-9145
Internetlänk
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- Ocko, Samuel A.
- King, Hunter
- Andreen, David
- Bardunias, Paul
- Turner, J. Scott
- Soar, Rupert
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- Mahadevan, L.
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