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Keywords = Incisitermes minor

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14 pages, 4958 KiB  
Article
Nest-Gallery Development and Caste Composition of Isolated Foraging Groups of the Drywood Termite, Incisitermes minor (Isoptera: Kalotermitidae)
by S. Khoirul Himmi, Tsuyoshi Yoshimura, Yoshiyuki Yanase, Masao Oya, Toshiyuki Torigoe, Masanori Akada and Setsuo Imadzu
Insects 2016, 7(3), 38; https://doi.org/10.3390/insects7030038 - 22 Jul 2016
Cited by 12 | Viewed by 6721
Abstract
An X-ray computed-tomographic examination of nest-gallery development from timbers naturally infested by foraging groups of Incisitermes minor colonies was conducted. This study documents the colonization process of I. minor to new timbers and how the isolated groups maintain their nest-gallery system. The results [...] Read more.
An X-ray computed-tomographic examination of nest-gallery development from timbers naturally infested by foraging groups of Incisitermes minor colonies was conducted. This study documents the colonization process of I. minor to new timbers and how the isolated groups maintain their nest-gallery system. The results suggested that development of a nest-gallery within a suitable wood item is not random, but shows selection for softer substrate and other adaptations to the different timber environments. Stigmergic coordinations were expressed in dynamic changes of the nest-gallery system; indicated by fortification behavior in sealing and re-opening a tunnel approaching the outer edge of the timber, and accumulating fecal pellets in particular chambers located beneath the timber surface. The study also examines the caste composition of isolated groups to discover how I. minor sustains colonies with and without primary reproductives. Full article
(This article belongs to the Special Issue Management of Wood-Attacking Insects)
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9 pages, 455 KiB  
Article
Seasonal and Daily Patterns in Activity of the Western Drywood Termite, Incisitermes minor (Hagen)
by Vernard Lewis, Shawn Leighton, Robin Tabuchi and Michael Haverty
Insects 2011, 2(4), 555-563; https://doi.org/10.3390/insects2040555 - 12 Dec 2011
Cited by 10 | Viewed by 6746
Abstract
Activity of colonies of the western drywood termite, Incisitermes minor, was measured with acoustic emission (AE) technology in five loquat (Eriobotrya japonica) logs. Termite activity, whether it was feeding, excavation or movement, was monitored for 11 months under ambient conditions [...] Read more.
Activity of colonies of the western drywood termite, Incisitermes minor, was measured with acoustic emission (AE) technology in five loquat (Eriobotrya japonica) logs. Termite activity, whether it was feeding, excavation or movement, was monitored for 11 months under ambient conditions in a small wooden structure maintained at the University of California Richmond Field Station. AE, temperature, and humidity data were measured in 3-minute increments. Termite activity was greater during the warmer summer months compared to the cooler winter months. Termites in all five logs displayed a similar daily cycle of activity, peaking in the late afternoon. Seasonal and daily fluctuations in termite activity were significantly associated with temperature, whereas humidity did not appear to have a noticeable effect on termite activity. Possible mechanisms that drive the seasonal and daily cycles in termite activity, as measured by AE technology, and the possible implications for inspections and post-treatment analysis are discussed. Full article
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