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Showing 1 to 20 of 29 for “"Midges"”.
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Taxonomy and Life History of Gall Midges (Diptera, Cecidomyiidae) on Drosanthemum and Malephora (Aizoaceae) in South Africa
… years revealed a diverse community of gall midges on these plants. This study aimed to investigate the gall midges associated with two speciose genera of Aizoaceae and it is the first of its kind in South Africa. I report five new species of gall midges, three belonging to Asphondylia Loew …
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Assessing the drivers of adaptive radiation in a complex of gall midges: A multitrophic perspective on ecological speciation
… in driving trait divergence in a complex of gall midges in the nominal species <i>Asteromyia carbonifera</i> (Diptera: Cecidomyiidae), which appears to be in the throes of an incipient adaptive radiation on its host plant, goldenrod (<i>Solidago</i>). This galler uses a symbiotic fungus …
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The role of chemicals in the location of host plants by midge pests of UK fruit crops
Gall midges (Diptera: Cecidomyiidae) are important pests of many horticultural crops. They are difficult to control by conventional means as the larvae develop in galls surrounded by plant tissue. Gravid females need to locate suitable host plant material on which to lay their eggs and there is …
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Culicoides smulkiųjų mašalų (Diptera: Ceratopogonidae) mitybos analizė /
… of this study was to look into where the biting midges, which were gathered from several study sites in Lithuania, got their blood meal from as well as to determine ornithophilic and mammalophilic species. A total of 3468 Culicoides females were collected from 2021-2023year results. In total, 258 …
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Investigation into the effects of parasitoids on a gall midge Dasineura sp. (Cecidomyiidae), a biological control agent of Australian myrtle, Leptospermum laevigatum
… effectiveness as a control agent is important. Midges were found to select plants for oviposition that have high growth rates and result in large galls. This results in plants with lots of large galls. These plants are conspicuous to parasites and levels of parasitism are highest at these sites. …
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The chemical diversity of midge pheromones
Midges (Diptera: Cecidomyiidae) are pests of many economically valuable agricultural crops. The female sex pheromones of several midge species have been identified and the hypothesis was that midge sex pheromones could be chemically more diverse in structure than previously thought. This hypothesis …
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Seasonal abundance and host preference of Culicoides in Virginia: with emphasis on the ecology of Culicoides variipennis (Diptera: Ceratopogonidae)
… in this study. The drop trap collected more midges than did the vacuum trap, and the cattle trap collected more midges than did the sheep trap. Culicoides stellifer began host-seeking activity at SS-30 in bait traps and continued to be collected in the blacklight trap the remainder of the …
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DISTURBANCE ECOLOGY OF THE SONADORA RIVER ROCK POOL INSECT ASSEMBLAGE AT LUQUILLO EXPERIMENTAL FOREST, PUERTO RICO
… discovered species of ceratopogonid (biting midges, <em>Dasyhelea</em> <em>grisea</em> species group), 2) chironomids (non-biting midges, tribe Chironomini), and 3) mosquitoes (Culicidae, <em>Culex secutor</em>). The <em>Dasyhelea</em> were rock pool specialists, while the other taxa were …
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Olfactory responses of Dasineura Dielsi Rübsaamen (Diptera: Cecidomyiidae) females to host plant volatiles
… to test the following hypotheses: 1) the midges respond to the scent of A. cyclops to locate suitable oviposition sites; 2) the floral scent of A. melanoxylon, A. longifolia and A. saligna resembles that of A. cyclops and this explains the insects’use of these plants too; and 3) the floral …
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Effects of Short-Term Dewatering on Grazer Abundance and Algal Biomass in a Wastewater Treatment Algal Turf Scrubber
… that dewatering the algae would reduce the midges in the system. Second, does dewatering alter the algal biomass of the system? It was predicted that dewatering the algae would increase the algal biomass due to reduced grazing pressures from the midges. And lastly, was there a shift in the …
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A study of biting midge populations and an assessment of Bluetongue virus presence in southern Ontario, with a visual dichotomous key to the North American genera of Ceratopogonidae
Biting midges (Diptera: Ceratopogonidae) are flying insects that feed on blood in order to produce eggs. Due to their bloodfeeding habits, some species act as vectors for viruses, many of which affect ruminant animals. This establishes ceratopogonids as possible threats to livestock farmers, and …
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Ecological and Evolutionary Consequences of Variation in Clutch Size in Asteromyia Carbonifera (o.s.) (Diptera: Cecidomyiidae)
… Solidago canadensis (Compositae). Female midges deposit one to five offspring per gall. During their brief adult existence, females produce a number of galls. The number of eggs laid at each ovipositional site is termed the "clutch size." Midge larvae are potential hosts to five species of …
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Contributions to the autecology and ecosystematics of immature ceratopogonidae (Diptera), with emphasis on the tribes heteromyiini and sphaeromiini in the middle atlantic United States
… study of the immature stages of the biting midges (Diptera: Ceratopogonidae) has been infrequent, although the family is one of the largest in the order, with over 4,000 species worldwide, and is ubiquitous among aquatic/semiaquatic environments. An ecosystematic analysis is presented here …
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Asynchrony in the dynamics of chironomids across six locations in northeastern Iceland
… 18-year time series of abundances of non-biting midges (Diptera: Chironomidae) from window trap samples at five lakes in northeastern Iceland: Miklavatn, Sílalækjarvatn, Skjálftavatn, Víkingavatn, and Mývatn. The largest lake, Mývatn, consists of two distinct basins which I treat as separate …
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Migratory Stopover of Songbirds in the Western Lake Erie Basin
… greater at sites that had more emergent aquatic midges (Chironomidae) in 2012, suggesting that midges could help explain the distribution and abundance of migrants in the WLEB. While densities of transient migrants were greater near the coast, inland forests often supported more transient …
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Material, acoustic, and mechanical properties of mosquito and midge antennae
… of acoustic reception in mosquitoes and midges, both mechanically and structurally.
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Plasticity of trait divergence in threespine stickleback (Gasterosteus aculeatus) from Lake Mývatn, Iceland
… are found in the lake, in particular chironomid midges and benthic cladocerans that are important prey for threespine stickleback (Gasterosteus aculeatus). As adaptive divergence in response to natural selection is frequently related to diet and/or habitat use, the spatial and temporal variation …
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Ecological Studies on Benthic Macroinvertebrates in Lowland Rivers in Relation to Water Quality
… oligochaetes, tanypodinid and chironominid midges, amphipod crustaceans and molluscs, many of which are regarded as tolerant of organic pollution, were dominant. Mayflies, stoneflies, beetles and caddis flies were restricted, these including most of the indicators of clean waters. This was …
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Reassortment of bluetongue virus vaccine serotypes in cattle
… The virus is transmitted by Culicoide biting midges (Diptera: Ceratoponidae) and the occurrence of the disease depends on the presence and abundance of competent vectors. In South Africa most European ovine breeds are more susceptible to the disease than indigenous sheep, while cattle and …
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A spatial risk assessment of hemorrhagic disease in cattle in Illinois from 2005 to 2011
… States. The viruses are transmitted via biting midges, and EHDV in particular causes severe disease in white-tailed deer annually in Illinois. Cattle can also be infected with these viruses; and although clinical illness is rare, the prolonged viremia in cattle after infection may play an …
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