Oecologia (2002) 133, 261-266

Janice Moore and Michael Freehling (2002)
Cockroach hosts in thermal gradients suppress parasite development
Oecologia 133 (2), 261-266
Abstract: Cockroaches parasitized by the temperature-sensitive acanthocephalan Moniliformis moniliformis exhibit a variety of behavioral alterations, so we asked if parasitized cockroaches defended themselves against the parasite with altered thermal choices. We tested the null hypothesis that cockroaches infected with M. moniliformis do not alter temperature choice in two ways: by direct observation and, indirectly, by observation of parasite development after a prolonged developmental period. When we compared acanthocephalan development in cockroaches that were allowed to use thermal gradients to acanthocephalan development in cockroaches held at constant temperatures, we found that in two cockroach species (Supella longipalpa and Blatta orientalis), acanthocephalan development was greatly retarded, a result that is consistent with the cockroaches spending time in cold temperatures. Parasitized animals exhibit behavioral alterations that can have profound effects on parasite transmission and host well-being; neither the beneficiaries of those alterations nor the alterations themselves are easily predictable.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation
general biology - morphology - evolution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Blatta orientalis
Moniliformis moniliformis (parasite)	Blatta orientalis