Results 51 to 60 of about 9,121 (274)

Baetidae

open access: yes, 2022
Familia Baetidae De distribución cosmopolita, en Argentina se han descrito 16 géneros con 54 especies (Domínguez et al., 2021). Las ninfas habitan casi todo tipo de ambientes, lénticos o lóticos y todo tipo de sustrato, arenoso y rocoso. Para la provincia estaban registrados Camelobaetidius huarpe Nieto y C.
openaire   +2 more sources

Description of the Nymph of \u3ci\u3eCentroptilum Walshi\u3c/i\u3e (Ephemeroptera: Baetidae), with Biological Notes [PDF]

open access: yes, 2017
The nymph of Centroptilum walshi McDunnough is described. C. walshi appears to be bivoltine in Wisconsin, with emergences throughout June into early July and from late August to early November.
Bergman, Edward A, Hilsenhoff, William L
core   +2 more sources

Avaliando a interrupção da conectividade longitudinal em assembleias de macroinvertebrados em um rio semi-árido [PDF]

open access: yes, 2017
Aim: Our aim in this study was evaluate the effects of flow regulation for irrigation on the macroinvertebrate assemblages in a semiarid river. Methods:We sampled two reaches in Dulce River; one placed upstream a weir that diverts flow into a network of ...
Diodato, Maria Estela Liliana   +3 more
core   +1 more source

It is a mess! How many species are in Rivudiva trichobasis Lugo-Ortiz & McCafferty, 1998 (Ephemeroptera: Baetidae)?

open access: yesEuropean Journal of Taxonomy, 2022
The original description of Rivudiva trichobasis Lugo-Ortiz & McCafferty, 1998 is short, with few illustrations. The lack of information resulted in a broad specific diagnosis, with emphasis on the spine-like setae on the antenna.
P. V. Cruz   +3 more
semanticscholar   +1 more source

Global diversity of mayflies (Ephemeroptera, Insecta) in freshwater [PDF]

open access: yes, 2007
The extant global Ephemeroptera fauna is represented by over 3,000 described species in 42 families and more than 400 genera. The highest generic diversity occurs in the Neotropics, with a correspondingly high species diversity, while the Palaearctic has
Barber-James, Helen Margaret   +3 more
core   +5 more sources

Water quality related macroinvertebrate community responses to environmental gradients in the Portoviejo River (Ecuador) [PDF]

open access: yes, 2017
The Portoviejo River, located in the central western part of Ecuador, has been heavily impacted by damming, intensive agriculture and untreated wastewater discharge.
Boets, Pieter   +10 more
core   +1 more source

Persistence of Urban Stream Syndrome Effects from Point Source and Non-Point Source Pollutants [PDF]

open access: yes, 2017
In a previous study, Sager Creek, a small 1st-3rd order stream in northwest Arkansas was shown to be negatively impacted by urban land usage within the watershed, producing a stream that exhibited several indicators of urban stream syndrome.
Wakefield, T. S.
core   +3 more sources

Baetidae from Sri Lanka with Some General Remarks on the Baetidae of the Oriental Region (Insecta: Ephemeroptera)

open access: yesThe Florida Entomologist, 1985
The nymphs of nine species of baetid mayflies from Sri Lanka are described in detail. These include Baetis frequentus sp.n., B. acceptus sp.n., B. conservatus sp.n., B. collinus sp.n., B. geminatus sp.n., B. pulchellus sp.n., B. ordinatus sp.n., and Procloeon regularum sp.n.
Ingrid Müller-Liebenau   +2 more
openaire   +3 more sources

Hydrological Connectivity and Local Environment Alternately Drive Spatial Structure of Floodplain Aquatic Community Across Seasons. [PDF]

open access: yesEcol Evol
Our study shows that the landscape‐scale environmental gradient represented as ecotone and as local environmental factors can alternately determine the spatial structures of the floodplain biota across seasons. The study highlights the understudied yet important linkages of spatial and temporal biotic assemblages and advance understanding of ecology ...
Uno H   +5 more
europepmc   +2 more sources

Changes in invertebrate assemblage composition in benthic and hyporheic zones during a severe supraseasonal drought [PDF]

open access: yes, 2014
Droughts are unpredictable disturbances characterized in streams by declining flow, reduced habitat availability, and deteriorating abiotic conditions.
Boulton, AJ   +3 more
core   +2 more sources

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