Results 21 to 30 of about 2,676 (134)
ABSTRACT River regulation following damming is often associated with deleterious downstream effects, in large part due to reduced total discharge and disruption of seasonal flooding. These effects would be expected to be exacerbated by drought, particularly extended drought.
Jeffrey G. Holmquist +1 more
wiley +1 more source
Criação e Transporte de Ninfas de Ephemeroptera (Insecta) em Campo
Muitas espécies de Ephemeroptera são conhecidas somente em um estágio, normalmente adulto ou ninfa. Nesse estudo é proposto uma metodologia para transporte e criação de ninfas em campo Rearing and Transport of Mayfly Nymphs in the Field Abstract ...
Rafael Boldrini, Paulo Vilela Cruz
doaj +3 more sources
The phylogenetic relationship of Ephemeridae (Insect: Ephemeroptera) remains hotly debated using mitochondrial (mt) genomes. All previously reported mt genomes of Ephemeridae belong to the genus Ephemera.
Yao Tong +6 more
doaj +1 more source
ABSTRACT Florida's regulatory framework requires the establishment of minimum flows to protect aquatic ecosystems and water resources from significant harm. One of the primary methods used to evaluate significant harm is assessment of instream habitat, which relies on Habitat Suitability Criteria (HSC) curves that relate flow regimes and habitat ...
Eric J. Nagid, Kym Rouse Holzwart
wiley +1 more source
ABSTRACT This study assessed the ecotoxicological effects of treated sewage on the freshwater planarian Girardia tigrina, integrating biochemical, energetic, and behavioral biomarkers. Planarians were exposed for 48 h to different concentrations of treated sewage (12.5%, 25%, 50%, and 100%) and compared to controls using commercial water and water from
Renata M. P. Freitas +3 more
wiley +1 more source
Sympatric bat species can co‐exist and avoid interspecific competition via niche differentiation e.g. diet. Detecting dietary differences can be achieved by comparing dietary niches of sympatric and allopatric populations. If dietary overlap is higher in sympatry versus allopatry, co‐occurrence may be altering the dietary niche of the species.
Heather Wood +3 more
wiley +1 more source
The stomach contents of 0 to 3 year old salmon were investigated throughout a single 20 hour period in each of July, August and September 1981. There was no marked diurnal variation in stomach content of fry, while that of parr indicated nocturnal ...
Helge Huru
doaj +1 more source
Fauna of Ephemeroptera in the running waters of west Serbia [PDF]
During the period 1988 - 1996 the Ephemeroptera diversity in West Serbia was studied. These investigations included 124 springs, considerable number of spring regions, as well as rivers: the Sušica, Djetinja, Skrapež Pocibrava, Banja, Gradac, Jablanica ...
Marković Z., Živić Ivana
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Urban bats show dietary flexibility in aquatic arthropod consumption at urban and rural waterbodies
Urban waterbodies are critical for biodiversity and provide feeding grounds for insectivorous bats. Yet, how urbanisation affects bats' food choices at urban waterbodies and the role of emergent aquatic arthropods remain poorly understood. We compared the diet of three urban bat species – Vespadelus vulturnus, Chalinolobus gouldii,and Myotis macropus –
Tanja M. Straka +7 more
wiley +1 more source
Mayflies (Ephemeroptera) of Kosovo: conservation status, key threats, and management priorities
Mayflies (Ephemeroptera) are among the most ecologically sensitive and conservation-relevant components of freshwater ecosystems, yet they remain insufficiently integrated into conservation planning in Kosovo. This study presents an initial conservation-
Bardh Xërxa, Agim Gashi
doaj +1 more source

