| lack of behavioral fever in nematode-parasitized drosophila. | the parasitic nematode howardula aoronymphium causes severe fertility reduction and sterility in females of several species of mycophagous drosophila. infected females of drosophila putrida recover their fertility when kept at a postemergence temperature of 29 c but not when kept at 27 c or below. when given a choice of temperatures in a thermal gradient, neither this species, drosophila falleni, nor drosophila neotestacea manifested adaptive behavioral fever in response to parasitism. however, ... | 1995 | 7472853 |
| no evidence for behavioural adaptations to nematode parasitism by the fly drosophila putrida. | behavioural adaptations of hosts to their parasites form an important component of the evolutionary dynamics of host-parasite interactions. as mushroom-feeding drosophila can tolerate deadly mycotoxins, but their howardula nematode parasites cannot, we asked how consuming the potent mycotoxin α-amanitin has affected this host-parasite interaction. we used the fly d. putrida and its parasite h. aoronymphium, which is both highly virulent and at high prevalence in some populations, and investigate ... | 2013 | 23663194 |
| infectious adaptation: potential host range of a defensive endosymbiont in drosophila. | maternally transmitted symbionts persist over macroevolutionary timescales by undergoing occasional lateral transfer to new host species. to invade a new species, a symbiont must survive and reproduce in the new host, undergo maternal transmission, and confer a selective benefit sufficient to overcome losses due to imperfect maternal transmission. drosophila neotestacea is naturally infected with a strain of spiroplasma that restores fertility to nematode-parasitized females, which are otherwise ... | 2012 | 23550746 |
| nested subset structure of larval mycophagous fly assemblages: nestedness in a non-island system. | nested subset structure has been studied in archipelagoes and fragmented habitats, and has been attributed to differential colonization and extinction rates among species and nested environmental tolerances. in this experiment, we tested for nestedness in assemblages of mycophagous fly larvae. twenty mushrooms in each of three size classes (4.8-6.0 g, 10-15 g, 21-32 g) were placed on moist potting soil in experimental cups. the cups were placed in oak and pine forests in greenville, s.c., usa fo ... | 1996 | 28307312 |