| survival and reproductive output of chironomus tentans (diptera: chironomidae) in response to parasitism by larval unionicola foili (acari: unionicolidae). | parasitic associations between larval unionicola foili and the dipteran chironomus tentans were established in the laboratory, and the effects of these water mite larvae on survival and reproduction of c. tentans were determined. longevity of parasitized insects was not significantly different from those that were unparasitized. furthermore, there was no significant difference in the onset of oviposition between parasitized and unparasitized female chironomids. however, infected females oviposit ... | 1997 | 9057722 |
| the behavioral responses by larvae of the water mite unionicola foili (acari: unionicolidae) to gravity, light and host chemicals: adaptations for transmission success? | the life cycle of the water mite unionicola foili includes larvae that parasitize chironomid dipterans, and nymphs and adults that occur in association with the freshwater mussel utterbackia imbecillis. the georesponses and photoresponses of larval u. foili in the presence of chemical substances from chironomids and mussels both prior to (= pre-chironomid larvae) and after their parasitism with chironomids (= post-chironomid larvae) were examined in the laboratory. the responses of larval u. foi ... | 1999 | 11536926 |
| host sex preferences and transmission success by the water mite unionicola foili (acari: unionicolidae) parasitic on the midge chironomus tentans (diptera: chironomidae). | this study examined whether ecoparasitic larval unionicola foili exhibited a sex bias when infecting laboratory populations of the host insect chironomus tentans and whether an association with male or female midges increased the likelihood of larval mites returning to the aquatic habitat. when laboratory populations of c. tentans were exposed to larval u. foili, there was a higher prevalence of mites among female hosts at emergence (17 of 30 males vs. 25 of 30 females infected by mites). howeve ... | 2003 | 14533673 |
| random amplified polymorphic dna analysis of kinship within host-associated populations of the symbiotic water mite unionicola foili (acari: unionicolidae). | kinship relations within populations of unionicolid water mites are not well known, owing to their complex life cycles and the fact that interactions between active and resting stages for some species are transitory. a number of species of unionicolid water mites are, however, obligate symbionts of freshwater mussels and spend most of their life cycle in association with these hosts. among these species of mites, parents and offspring are more likely to co-occur and thus provide opportunities to ... | 2004 | 15597601 |
| mitochondrial genome sequence of unionicola foili (acari: unionicolidae): a unique gene order with implications for phylogenetic inference. | the mitochondrial genome of unionicola foili is circular, 14,738 bp in length, and contains several notable features. the sequence and annotation revealed a unique gene order, continuing a pattern of highly rearranged mitochondrial genomes in the trombidiformes. u. foili mitochondrial trna sequences predict non-canonical secondary structures for these molecules, and our annotation suggests an in-frame fusion between the nad4l and nad5 genes in this genome. the unique gene order and unusual trna ... | 2009 | 19353278 |