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1 July 2012 CO2 Release in Groups of Reticulitermes virginicus (Isoptera: Rhinotermitidae)
Terence L. Wagner, Thomas G. Shelton, Eric J. Villavaso
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CO2 release rates were measured from groups of 10 Reticulitermes virginicus Banks workers, soldiers, and nymphs. For workers, co2, (μl·mg−1·h−1) increased linearly with temperature between 16.2 - 30.4°C. co2 recorded at ≈20°C was 0.177 ± 0.005 μl·mg−1·h−1 for soldiers and 0.219 ± 0.027 (μl·mg−1·h−1 tor nymphs. Assuming a similar slope of temperature increase in co2 for all castes, predicted mass-corrected CO2 release values for grouped R. virginicus workers, soldiers and nymphs at 23.6°C were 27, 52 and 27% lower than literature values for the same castes of R. flavipes measured individually at that temperature. CO2 release rate (μl·mg−1·h−1) for R. virginicus nearly doubled over the 20°C to 30°C temperature range (Q10 = 1.91), similar to literature values for Zootermopsis nevadensis (Hagen) over the same range. For all temperatures except 25.2°C, CO2 release rate (in μl·h−1) increased significantly with mass, with coefficients ranging from 0.123 (16.2°C) to 0.599 (30.4°C).

Terence L. Wagner, Thomas G. Shelton, and Eric J. Villavaso "CO2 Release in Groups of Reticulitermes virginicus (Isoptera: Rhinotermitidae)," Journal of Entomological Science 47(3), 264-271, (1 July 2012).
Received: 29 November 2011; Accepted: 1 January 2012; Published: 1 July 2012

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