Higher Classification of the Ephemeroptera and Its.

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The Baetidae is a widespread and abundant family that occurs in a variety of streams, and also in permanent and temporary ponds or littoral zones of lakes. Lotic species are sometimes univoltine, but more frequently bivoltine; most species overwinter as diapausing eggs.

Taxonomic Aids for Mid-Atlantic Benthic Macroinvertebrates.

CLASSIFICATION AND PHYLOGENY OF THE BAETIDAE (EPHEMEROPTERA) WITH DESCRIPTION OF THE NEW SPECIES FROM THE UPPER CRETACEOUS RESINS OF TAIMYR NIKITA Ju. KLUGE Department of Entomology, Biological Faculty, St-Petersburg State University, St-Petersburg, 1990343, Russia.The family Baetidae, which belongs to the order Ephemeroptera, was first described by Leach in 1815. Since then, almost 100 genera and 900 species have been described. Although diverse, this family is relatively homogeneous.Disclaimer: ITIS taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. However, it is not a legal authority for statutory or regulatory purposes. While every effort has been made to provide the most reliable and up-to-date information available, ultimate legal requirements with respect to species are contained in.


The fast-swimming Baetidae nymphs are an important trout food even during non-hatch periods. The popular Pheasant Tail Nymph pattern, in small sizes, imitates them fairly well. Pictures of 84 Mayfly Specimens in the Family Baetidae.Global Biodiversity Information Facility. Free and Open Access to Biodiversity Data.

The systematics of the Baetidae has been the subject of much attention during the last three decades, with descriptions of new species and genera as well as several generic revisions. The family.

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Baetidae. All images on this website have been taken in Leicestershire and Rutland by NatureSpot members. We welcome new contributions - just register and use the Submit Records form to post your photos. Click on any image below to visit the species page.

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The classification of species into genera also has changed markedly in the last 40 years. The family Baetidae has seen the greatest number of changes, with multiple new genera described, several more recent generic revisions, and some species going back and forth between genera several times.

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This key covers larvae of the 11 Genera of Baetidae that we have collected in North Dakota rivers and streams. Baetidae are rather fragile larvae, so they may appear rather beaten up in your samples. Examples in some of these photos are missing the gills, antennae, or legs that easily break off during sampling procedures.

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In the present study, assessment, and comparison of the aquatic macroinvertebrates and their abiotic preferences were done in three river basins.

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We assessed and compared abiotic preferences of aquatic macroinvertebrates in three river basins located in Ecuador, Ethiopia and Vietnam. Upon using logistic regression models we analyzed the relationship between the probability of occurrence of five macroinvertebrate families, ranging from pollution tolerant to pollution sensitive, (Chironomidae, Baetidae, Hydroptilidae, Libellulidae and.

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A memorable essay describing subsistence gill-net fishing on the Kobuk River, just south of the Noatak River, can be found in Jans (1993). Other families of fishes are apparently represented by one species each: northern pike, burbot (a freshwater member of the cods), Alaska blackfish (a Beringian relict), longnose sucker, slimy sculpin, and ninespine stickleback.

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Scientific rigor is critical to building trust in the stewardship measures we recommend. Peer-reviewed publication of our freshwater research, environmental education, and watershed restoration activities is a fundamental communication tool. Please note: items published prior to an individual’s affiliation with Stroud Water Research Center are not included in the list below but are shown in.

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First records of Baetis vernus Curtis (Ephemeroptera: Baetidae) in North America, with morphological notes. Journal of the Entomological Society of British Columbia 115:3-24. Burton, P.J. 2010 Striving for sustainability and resilience in the face of unprecedented change: The case of the mountain pine beetle outbreak in British Columbia.

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