Academic literature on the topic 'Ameletus'

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Journal articles on the topic "Ameletus"

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Zloty, Jacek, and Françoise Harper. "TWO NEW AMELETUS MAYFLIES (EPHEMEROPTERA: AMELETIDAE) FROM WESTERN NORTH AMERICA." Canadian Entomologist 131, no. 1 (1999): 1–9. http://dx.doi.org/10.4039/ent1311-1.

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AbstractTwo new species, Ameletus minimus sp.nov. and Ameletus quadratus sp.nov., are described and illustrated from material collected in Oregon. Diagnostic features for these two species and their relationships with other Ameletus species are discussed. An identification key to the western species of the Ameletus celer Group is also included.
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Li, Xianfu, Yanping Luo, Jian Jiang, Lili Wang, and Xiaoli Tong. "Description of a new species of the genus Ameletus Eaton, 1885 (Ephemeroptera, Ameletidae) from Yunnan, China." ZooKeys 1021 (March 1, 2021): 37–51. http://dx.doi.org/10.3897/zookeys.1021.59927.

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A new species with primitive characteristics, Ameletus daliensis Tong, sp. nov., is described, based on the morphology of imago, larva and egg with molecular data of the mitochondrial COI from Mount Cangshan, Dali, China. The new species is closely related to one of the most primitive mayflies, Ameletus primitivus Traver, 1939, by sharing persistent mouthparts in the alate stage, but it can be distinguished from the latter by the morphological differences of the mouthpart remains, wings and genitals in the imaginal stage. Both morphological and molecular evidence support that A. daliensis Tong, sp. nov. is a new member of the genus Ameletus. The discovery of the new species could help understand the origin and evolution of the genus Ameletus.
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Li, Xianfu, Yanping Luo, Jian Jiang, Lili Wang, and Xiaoli Tong. "Description of a new species of the genus Ameletus Eaton, 1885 (Ephemeroptera, Ameletidae) from Yunnan, China." ZooKeys 1021 (March 1, 2021): 37–51. https://doi.org/10.3897/zookeys.1021.59927.

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A new species with primitive characteristics, Ameletus daliensis Tong, sp. nov., is described, based on the morphology of imago, larva and egg with molecular data of the mitochondrial COI from Mount Cangshan, Dali, China. The new species is closely related to one of the most primitive mayflies, Ameletus primitivus Traver, 1939, by sharing persistent mouthparts in the alate stage, but it can be distinguished from the latter by the morphological differences of the mouthpart remains, wings and genitals in the imaginal stage. Both morphological and molecular evidence support that A. daliensis Tong, sp. nov. is a new member of the genus Ameletus. The discovery of the new species could help understand the origin and evolution of the genus Ameletus.
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Tiunova, Tatiana M. "New species of Ameletus Eaton, 1885 and redescription of Ameletus longulus Sinichenkova, 1981 from the Russian Far East (Ephemeroptera: Ameletidae)." Zootaxa 3630, no. 3 (2013): 519–33. https://doi.org/10.11646/zootaxa.3630.3.7.

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Tiunova, Tatiana M. (2013): New species of Ameletus Eaton, 1885 and redescription of Ameletus longulus Sinichenkova, 1981 from the Russian Far East (Ephemeroptera: Ameletidae). Zootaxa 3630 (3): 519-533, DOI: 10.11646/zootaxa.3630.3.7
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Tiunova, Tatiana M., Aleksandr A. Semenchenko, and Oleg A. Velyaev. "New species of Ameletus Eaton, 1885 from the Russian Far East with notes on Ameletus camtschaticus Ulmer 1927 (Ephemeroptera: Ameletidae)." Zootaxa 4276, no. 2 (2017): 151–76. https://doi.org/10.11646/zootaxa.4276.2.1.

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Tiunova, Tatiana M., Semenchenko, Aleksandr A., Velyaev, Oleg A. (2017): New species of Ameletus Eaton, 1885 from the Russian Far East with notes on Ameletus camtschaticus Ulmer 1927 (Ephemeroptera: Ameletidae). Zootaxa 4276 (2): 151-176, DOI: 10.11646/zootaxa.4276.2.1
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Funk, David H. "Ameletus Mayflies (Ephemeroptera: Ameletidae) of the Eastern Nearctic." Insects 16, no. 5 (2025): 530. https://doi.org/10.3390/insects16050530.

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Fourteen Ameletus species are recognized in the eastern Nearctic (south of the Artic zone), including six described as new. Keys to adult males and full-grown larvae are provided. Taxonomic decisions were based on morphologic and genetic evidence. Their justification is discussed in depth and four species groups are proposed. The vast majority of Ameletus encountered in the eastern Nearctic are members of one of three triploid, clonal parthenogenetic species, at least two of which are of hybrid origin. Bisexual progenitors of the parthenogens were inferred using a combination of mitochondrial and nuclear genetic markers. The parthenogens likely arose during the Late Pleistocene when glacial advances brought previously allopatric species/populations into contact, and as glaciers retreated the parthenogens rapidly expanded their range while the sexual lineages remained in presumed glacial refugia. Although parthenogenesis is relatively common in Ephemeroptera, these Ameletus represent the first known cases of polyploidy and hybrid origin.
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Benton, Michael J. "Energy budgets and reproductive ecologies of mayflies occupying disparate thermal environments." Canadian Journal of Zoology 67, no. 11 (1989): 2782–91. http://dx.doi.org/10.1139/z89-394.

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Energy budgets were calculated for two populations of Ameletus occupying thermally disparate habitats. Growth, consumption, respiration, fecundity, and energy content of larvae and eggs were determined experimentally. Respiration rates increased and decreased with temperature throughout the life cycles of both species, although thermal effects became less pronounced with increased body size. Ameletus similior exhibited more uniform and consistently higher respiration values than Ameletus celer. Respiration costs were not constant over the life cycle of either species as has been reported for some other mayflies. Growth was influenced by both temperature (which affected instar duration) and body size (which affected growth ratio). Growth corresponded positively to temperature in both species, but was more uniform in A. celer. Net growth efficiency and assimilation were highest during cold periods in A. celer, but highest during warmer periods in A. similior. Consumption estimates were high even after adjustments for projected nonfeeding time, but unless food availability or handling time is limiting, the feeding rate of Ameletus relative to body mass may be higher than rates reported for other aquatic insect larvae. Several sources of error in consumption estimates existed, however. Assimilation efficiencies were low, but comparable to those for other herbivorous aquatic insects. Reproductive effort was higher in A. celer, but net reproductive effort was lower. The higher net reproductive effort by A. similior did not result in increased fecundity as expected, but in higher egg energy content. This and other factors suggest that A. similior displays more "K-selected" traits than A. celer, and indicates that greater fitness may not necessarily be synonymous with higher fecundity in all mayflies in all habitats.
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TIUNOVA, TATIANA M. "New species of Ameletus Eaton, 1885 and redescription of Ameletus longulus Sinichenkova, 1981 from the Russian Far East (Ephemeroptera: Ameletidae)." Zootaxa 3630, no. 3 (2013): 519–33. http://dx.doi.org/10.11646/zootaxa.3630.3.7.

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Ameletus khasanensis sp. nov. is described and Ameletus longulus Sinichenkova, 1981 is revalidated and redescribed based on material from the Russian Far East. The structure of the penis of both species is similar to that of Ameletus costalis (Matsumura 1931), a description and drawings of which are also presented in this paper. The male imago of A. khasanensis sp. nov. can be distinguished from that of A. costalis by the absence of spinules on the dorsal surface of the fore tibia. The male imago of A. longulus can be distinguished from A. khasanensis sp. nov. and A. costalis by the color of the forewings. The larvae of A. khasanensis sp. nov. differ from A. costalis in the length of the denticles on the right mandible, in the absence of the group of setae on the dorsal surface at the base of fore femora and the width/length ratio of gillVII. The larvae of A. longulus differ from A. khasanensis and A. costalis in the form and number of the denticles of the first comb-shaped seta of the maxilla and the number of setae on the dorsal surface of the base of the fore femora.
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Casey, Richard J. "Diel periodicity in density of Ephemeroptera nymphs on stream substrata and the relationship with drift and selected abiotic factors." Canadian Journal of Zoology 65, no. 12 (1987): 2945–52. http://dx.doi.org/10.1139/z87-447.

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The diel periodicity in density of Ephemeroptera nymphs on an undisturbed stream bottom was documented by direct observation. The study was conducted in a second-order Rocky Mountain foothill stream in Alberta. Observations were made for 24-h periods, twice during a new moon and twice during a full moon; the times of the dark and light periods were noted. Nocturnal observations were made using a red light. The abundance of drifting nymphs, incident light, percent cloud cover in the sky, and water temperature were recorded to determine if they were related to the observed diel periodicity on top of the substratum. The taxonomic groups of Ephemeroptera nymphs examined were Cinygmula, Heptageniidae (Cinygmula and Epeorus), Baetis, Baetis–Ameletus, Ameletus, Drunella coloradensis Dodds, and total fauna (all groups including minor taxa). In response to the artificial light used for observations, total fauna, Cinygmula, and Baetis nymphs were not affected by the light, and the nymphs were not found to be negatively phototactic. Total fauna and Heptageniidae nymphs exhibited a diel periodicity between 24-h periods; the Baetis–Ameletus group also had a diel periodicity. Cinygmula, Baetis, and D. coloradensis nymphs did not exhibit a diel periodicity. Most taxonomic groups were at greater densities on the top of the substratum in the dark period than in the light period. For small and large size classes of nymphs examined, only the small Heptageniidae and Baetis–Ameletus nymphs showed a diel periodicity in density. Drift of the common groups of nymphs was aperiodic and not statistically correlated with the diel density of nymphs on the substratum. In general, incident light, percent cloud cover, and water temperature were not correlated with the diel density of the taxonomic groups on the top of the substratum.
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Gorovaya, E.A. "Life history of Ameletus longulus Sinichenkova, 1981 (Ephemeroptera: Ameletidae) in a small stream in vicinity of Vladivostok." Far Eastern Entomologist 353 (February 21, 2018): 17–23. https://doi.org/10.25221/fee.353.2.

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Gorovaya, E.A. (2018): Life history of Ameletus longulus Sinichenkova, 1981 (Ephemeroptera: Ameletidae) in a small stream in vicinity of Vladivostok. Far Eastern Entomologist 353: 17-23, DOI: 10.25221/fee.353.2, URL: http://dx.doi.org/10.25221/fee.353.2
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Dissertations / Theses on the topic "Ameletus"

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Šeděnka, Vladimír. "Numerická řešení problematiky EMC malých letadel." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-233594.

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Disertace popisuje současné problémy v certifikaci malých letadel, které by se měly v budoucnu řešit numerickým modelováním. Tento postup má zefektivnit návrh a zlevnit certifikaci letadel. Práce je úzce spjata s projektem HIRF-SE, který se problematikou certifikace letadel numerickými metodami zabývá. Podstatná část práce je věnována popisu dvou modulů pro platformu HIRF-SE: řešič BUTFE založený na metodě konečných prvků v časové oblasti a budicí nástroj BUTFE_EXC. Práce popisuje řešení pohlcujících okrajových podmínek, modelování disperzních a anizotropních materiálů a aproximaci tenkých drátů. Speciální pozornost je věnována řešení aproximace tenkých drátů s ostrými ohyby, jejíž současná formulace způsobuje překryvy mezi jednotlivými segmenty drátu.
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Books on the topic "Ameletus"

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Favati, Giuseppe. Ameleto, in nome dei padri. Polistampa, 2000.

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Favati, Giuseppe. Ameleto, in nome dei padri. Polistampa, 2000.

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Book chapters on the topic "Ameletus"

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Zloty, Jacek. "Description of the Male Imago of Ameletus Primitivus Traver (Ephemeroptera: Ameletidae) with Notes on Its Relationship with Other Ameletus Species." In Trends in Research in Ephemeroptera and Plecoptera. Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1257-8_42.

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Conference papers on the topic "Ameletus"

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Rudnicki, J., and M. Sypniewski. "AMELET-HDF converters for computational electromagnetics in aeronautic projects." In IET 8th International Conference on Computation in Electromagnetics (CEM 2011). IET, 2011. http://dx.doi.org/10.1049/cp.2011.0084.

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