نتایج جستجو برای: ephemeroptera
تعداد نتایج: 1009 فیلتر نتایج به سال:
Aquatic prey subsidies entering terrestrial habitats are well documented, but little is known about the degree to which these resources provide fitness benefits to riparian consumers. Riparian species take advantage of seasonal pulses of both terrestrial and aquatic prey, although aquatic resources are often overlooked in studies of how diet influences the reproductive ecology of these organism...
Three new species of Terpides s.str. from Peru are described as larvae, reared subimagoes and imagoes of both sexes, and eggs extracted from female imagoes: T. ornatodermis sp. n., T. echinovaris sp. n. and T. contamanensis sp. n. Besides hitherto known characters, Terpides s.str. is characterized by unusual structure of eggs and differs from Fittkaulus and Tikuna by arrangement of microtrichia...
Proceedings of the 2022 XVI International Conference On Ephemeroptera and XX Symposium Plecoptera (Cover)
Herbivory, Current Velocity and Algal Regrowth: How Does Periphyton Grow When the Grazers Have Gone?
eaten it? Does it grow faster or differently from un-grazed algae? To address these questions, an experiment conducted in streamside channels documented the re-growth of algae following grazing by two mayfly species. We found that algal re-growth did not depend on which mayfly species ate it; rather, it was the duration of grazing that mattered. The longer algae was grazed, the faster it grew. ...
Three new palaeopteran insects are described from the Middle Permian (Guadalupian) of Salagou Formation in the Lodève Basin (South of France), viz. the diaphanopterodean Alexrasnitsyniidaefam. n., based on Alexrasnitsynia permianagen. etsp. n., the ParelmoidaePermelmoa magnificagen. etsp. n., and Lodevohymen lapeyrieigen. etsp. n. (in Megasecoptera or Diaphanopterodea, family undetermined). In ...
Larvae, subimagoes, imagoes of both sexes and eggs of Thraulobaetodes cumminsorum Elouard & Hideux 1991 are described based on reared material from north-west of Zambia. Structure and development of genitals testify that Thraulobaetodes Elouard & Hideux 1991 belongs to Rhithrocloeoninae Kluge 2012. According to the newly suggested classification, Rhithrocloeoninae are divided into Thraulobaetod...
The aim of this study was to test the effect of agricultural and forestry land use on the structure of mayfly assemblages in low-order streams. Twenty-nine headwater streams were investigated in the state of São Paulo. We analyzed 15 streams in pristine areas (mixed tropical rainforest, semideciduous forest and dense tropical rainforest), and 14 streams covered with sugarcane, eucalyptus and pa...
Proceedings of the 2022 XVI International Conference On Ephemeroptera and XX Symposium Plecoptera (Table Contents)
Peat bogs are unique wetland ecosystems of high conservation value all over the world, yet data on the macroinvertebrates (including mayfly assemblages) in these habitats are still scarce. Over the course of one growing season, mayfly assemblages were sampled each month, along with other macroinvertebrates, in the largest and oldest Croatian peat bog and an adjacent stream. In total, ten mayfly...
Surface coal mining with valley fills has impaired the aquatic life in numerous streams in the Central Appalachian Mountains. We characterized macroinvertebrate communities from riffles in 37 small West Virginia streams (10 unmined and 27 mined sites with valley fills) sampled in the spring index period (March–May) and compared the assessment results using familyand genus-level taxonomic data. ...
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