Volumetrically, coleopterans were the most important item (42.4%) followed by lepidoptera larvae (26.8%) and homopterans
Of the 25 homopteran
taxa considered to be common or very common at some time during the Florida study, 19 were encountered during the Point Clear Island survey (15 were common and four others were considered uncommon during the sampling period).
Because ant colonies vary in size and because homopteran
aggregation size is often confounded with distance from ant nests, which independently influences patterns of recruitment (e.g., Taylor 1977, 1978; note that distance was not a factor in the present study), it is unlikely that this assumption will often be met.
Interactions between extrafloral nectarines, aphids and ants: are there competition effects between plant and homopteran
As a result, strains 26-O-to, 40-X-m, 43-S-d and 23-O-to isolated from homopteran
insects showed mortalities of 74, 96, 44 and 82 % respectively while HD-137, HD-1 and Bti showed 19, 83 and 95 % mortalities.
The per capita raw difference index characterizes the impacts of mantids as generally weak, except for one disproportionately strong negative effect on homopteran
prey [ILLUSTRATION FOR FIGURE 7A OMITTED].
insects, 55% of the species are thought to contain more than one type of symbiont (Buchner, 1966), and both sulfide-oxidizing and methylotrophic symbionts have been found within the same bivalve host (Fisher et al., 1993).
These natives are among the most common ants in the study areas (Ward 1987, Holway, 1998a), are all actively displaced by Argentine ants (Holway, 1998a) and, like that species, are omnivores, foraging mostly on dead arthropods, vertebrate carrion, and homopteran
exudates (Creighton 1950, P.S.
Several studies further indicate that harvestmen, primarily Phalangium opilio (L), may be significant biocontrol agents of homopteran
(Dixon and MeKinlay, 1989), coleopteran (Drummond et at., 1990) and lepidopteran (Ashby, 1974) pests in crop communities.
These species are mostly flower-feeding, 65 of them being placed in Heterothrips, but 3 Brazilian species of the genus Alaucothrips are ectoparasitic on an homopteran
The close similarity (more than 90%) observed between the delphacid and aphid symbiotes suggests that an ancestral Pyrenomycete may have parasitized a homopteran
common ancestor before these two groups diverged.
For a phloem feeder, we chose the homopteran
, Bemisia tabaci (the highly polyphagous strain B, also known as B.