Survival of termites (Isoptera) exposed to various levels of relative humidity (RH) and water availability, and their RH preferences Author Zukowski, John University of Florida, Entomology and Nematology Department, Fort Lauderdale, FL 33314, USA, E-mail: jzukows 2 @ ufl. edu (J. Z.), nysu @ ufl. edu (N. - Y. S) * Corresponding author; E-mail: jzukows 2 @ ufl. edu (J. Z.) jzukows2@ufl.edu Author Su, Nan-Yao University of Florida, Entomology and Nematology Department, Fort Lauderdale, FL 33314, USA, E-mail: jzukows 2 @ ufl. edu (J. Z.), nysu @ ufl. edu (N. - Y. S) * Corresponding author; E-mail: jzukows 2 @ ufl. edu (J. Z.) jzukows2@ufl.edu text Florida Entomologist 2017 2017-09-30 100 3 532 538 http://dx.doi.org/10.1653/024.100.0307 journal article 10.1653/024.100.0307 1938-5102 13307315
Table 3. Effects of water source and species on worker survival (%) of 4 species of termite (Coptotermes formosanus, Neotermes jouteli, Cryptotermes brevis, and Cryptotermes cavifrons) from 1 to 4 wk (mean ± standard error of the mean [SEM]).
Water source abc
a Weekly mean RH ± SEM associated with each water source are found in parentheses. b Means for each combination of treatment (species × water source) followed by the same lowercase letters within a row or means followed by the same capital letter within a column are not significantly different at the α = 0.05 level (Tukey honest significant difference test). c Values for each combination (species × water source) of treatments are means of 3 observations. d Values for each main treatment effect (species, water source) are means of 15 and 12 observations, respectively.
Wet woodDry woodWet soilWood + waterWood + RH
Species(91.0 ± 0.22%)(49.6 ± 0.61%)(92.6 ± 0.22%)(91.1 ± 0.22%)(94.2 ± 0.18%)Mean species survival d
Wk 1
C. formosanus93.3 ± 6.7Aa0.0 ± 0.0Ab100 ± 0.0Aa100 ± 0.0Aa93.3 ± 3.3Aa77.3 ± 10.4A
N. jouteli96.7 ± 3.3Aa90.0 ± 10.0Ba96.7 ± 3.3Aa93.3 ± 3.3Aa100 ± 0.0Aa95.3 ± 2.2B
Cr. cavifrons86.7 ± 8.8Aa90.0 ± 10.0Ba93.3 ± 6.7Aa86.7 ± 13.3Aa76.7 ± 3.3Aa86.7 ± 3.7AB
Cr. brevis63.3 ± 21.9Aa86.7 ± 8.8Ba73.3 ± 13.3Aa80.0 ± 10.0Aa100 ± 0.0Aa80.7 ± 5.9AB
Mean survival with source d85.0 ± 6.6ab66.7 ± 12.1b90.8 ± 4.5a90.0 ± 4.3a92.5 ± 3.0a
Wk 2
C. formosanus90.0 ± 5.8Aa0.0 ± 0.0Ab96.7 ± 3.3Aa63.3 ± 31.8Aa90.0 ± 10.0Aa68.0 ± 11.2A
N. jouteli96.7 ± 3.3Aa90.0 ± 10.0Ba96.7 ± 3.3Aa96.7 ± 3.3Aa96.7 ± 3.3Aa95.3 ± 2.2B
Cr. cavifrons83.3 ± 6.7Aa90.0 ± 5.8Ba80.0 ± 11.5Aa100 ± 0.0Aa86.7 ± 3.3Aa88.0 ± 3.1AB
Cr. brevis26.7 ± 21.9Aa73.3 ± 21.9Ba56.7 ± 29.6Aa80.0 ± 11.5Aa80.0 ± 10.0Aa63.3 ± 9.4A
Mean survival with source d74.2 ± 9.8a63.3 ± 12.4a82.5 ± 8.4a85.0 ± 8.5a88.3 ± 3.7a
Wk 3
C. formosanus90.0 ± 5.8Aa0.0 ± 0.0Ab96.7 ± 3.3Aa90.0 ± 10.0Aa90.0 ± 5.8Aa73.3 ± 10.1AB
N. jouteli90.0 ± 10.0Aa83.3 ± 12.0Ba96.7 ± 3.3Aa86.7 ± 8.8Aa100 ± 0.0Aa91.3 ± 3.5A
Cr. cavifrons83.3 ± 8.8Aa96.7 ± 3.3Ba86.7 ± 6.7Aa93.3 ± 3.3Aa90.0 ± 0.0Aa90.0 ± 2.4A
Cr. brevis26.7 ± 26.7Aa80.0 ± 11.5Ba50.0 ± 26.5Aa60.0 ± 30.6Aa36.7 ± 12.0Aa50.7 ± 10.0B
Mean survival with source d72.5 ± 10.3a65.0 ± 12.0a82.5 ± 8.3a82.5 ± 8.2a79.2 ± 8.0a
Wk 4
C. formosanus100 ± 0.0Aa0.0 ± 0.0Ab96.7 ± 3.3Aa33.3 ± 33.3Aab96.7 ± 3.3ABa65.3 ± 12.4AC
N. jouteli86.7 ± 8.8ABa90.0 ± 0.0Ba93.3 ± 3.3Aa96.7 ± 3.3Aa83.3 ± 6.7ABa90.0 ± 2.4AB
Cr. cavifrons86.7 ± 8.8ABa100 ± 0.0Ba90.0 ± 10.0Aa73.3 ± 14.5Aa100 ± 0.0Aa90.0 ± 4.3B
Cr. brevis26.7 ± 14.5Ba83.3 ± 8.8Ba56.7 ± 3.3Aa36.7 ± 31.8Aa26.7 ± 14.5Ba46.0 ± 8.8C
Mean survival with source d75.0 ± 9.5a68.3 ± 12.2a84.2 ± 5.4a60.0 ± 13.0a76.7 ± 9.6a