Abstract
Effects of dehydration on the behavioral response to humidity have been examined in the cockroach, Periplaneta americanaL. Under normal conditions cockroaches prefer lower humidity, but the preference is reversed by dehydration. Dehydrated cockroaches can distinguish smaller differences between two air streams compared with normal individuals. Cockroach behavioral responses to humidification include swing of antennae and locomotion. The period from onset of humidification to behavioral response decreases with increasing dehydration, indicating that the humidity threshold required for behavioral response decreases. Observed modulations of the behavioral response are discussed in relation to the contribution of the antennal hygroreceptors.
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Doi, N., Toh, Y. Modification of cockroach behavior to environmental humidity change by dehydration (Dictyoptera: Blattidae). J Insect Behav 5, 479–490 (1992). https://doi.org/10.1007/BF01058193
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DOI: https://doi.org/10.1007/BF01058193