نتایج جستجو برای: caddisflies
تعداد نتایج: 210 فیلتر نتایج به سال:
Three new caddisflies species of the fossil genus Archaeotinodes: Archaeotinodes petropolitana sp. nov., Archaeotinodes regiomontana sp. nov., and Archaeotinodes rossica sp. nov. from the Baltic amber (Upper Eocene, 40 million years old), are described and illustrated.
The mayfly (Insecta: Ephemeroptera) and caddisfly (Insecta: Trichoptera) fauna of Big Bend National Park and Big Bend Ranch State Park are reported based upon numerous records. For mayflies, sixteen species representing four families and twelve genera are reported. By comparison, thirty-five species of caddisflies were collected during this study representing seventeen genera and nine families....
For the first time species of caddisflies in the genus Chimarra Stephens 1829 are reported from Malawi. The following new species are described: Chimarra zombaensis, C. flaviseta, C. chichewa, C. circumverta, C. mulanjae, C. psittacus and C. calidopectoris. The descriptions add to the knowledge of Afrotropical diversity in the order Trichoptera.
b a ckground: eco-faunistic studies are inevitable step in environmental researches. aquatic organisms like caddisflies are known as biological indicators for water quality assessment and water resource management. they have special role for energy flow in the freshwater habitats as food web and food chain among aquatic creatures. methods: in addition to an extensive literature revi...
We present a novel meta-community approach to explore the influence of species traits, such as adult body size, larval feeding type and microhabitat, well macrohabitat (main river channel vs. floodplain water bodies) on concentration total Hg accumulated ([THg]) in assemblages caddisflies. analyzed [THg] 157 light-trapped caddisflies sector French upper Rhône River used linear mixed effect mode...
The Neotropical caddisfly (Trichoptera) fauna is cataloged from a review of over 1,000 literature citations through 2015 (partial 2016) to include 3,262 currently recognized, valid species-group names in 25 families and 155 extant genera. Fourteen subspecies are included in the total as well as 35 fossil species and 1 fossil genus. The region covered includes all of Mexico, Central America, the...
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BACKGROUND Aquatic insects and other freshwater animals are some of the most threatened forms of life on Earth. Caddisflies (Trichoptera) are highly biodiverse in the Neotropics and occupy a wide variety of freshwater habitats. In Andean countries, including Ecuador, knowledge of the aquatic biota is limited, and there is a great need for baseline data on the species found in these countries. H...
Seasonal variation in resource availability can have strong effects on life histories and population densities. Emergent rocks (ERs) are an essential oviposition for multiple species of stream insects. The ERs depends upon water depth clast size, which vary with discharge river geomorphology, respectively. Recruitment success populations may depend whether peak egg-laying periods occur at times...
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