Results 61 to 70 of about 3,531 (216)
Set of 95 color and black-and-white slides in 2 boxes labeled Mayfly Extras. Part of the Cal R. Fremling collection. Slides are mostly unlabeled and not numbered consecutively. Exact location and creation dates are unknown.
Fremling, Cal R.
core
Intermittent rivers, common in dry parts of the world, such as the Mediterranean region, are hydrologically harsh habitats characterized by periodical flow cessation.
Marina Vilenica +5 more
doaj +1 more source
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
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
The Enhanced Mayfly Optimization Algorithm with Roulette Wheel Selection [PDF]
In the year 2020, the Mayfly optimization method was proposed. It is a modification of particle swarm optimization and it combines major advantages of particle swarm optimization, genetic algorithm, and firefly algorithm.
Asaju-Gbolagade, A. W. +2 more
core +1 more source
Ain’t No Mountain High Enough – Studies on the Upland Summer Mayfly (Ameletus inopinatus) [PDF]
The Upland Summer Mayfly (Ameletus inopinatus) is the only arctic-alpine mayfly species found in Great Britain. Previous research in Europe using climate models have shown that the geographical range of this species is likely to contract as water ...
Louis Kitchen (16303858) +2 more
core +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
Our study shows that non‐native species alter the relationship between the size‐spectrum slope and the predator–prey mass ratio (PPMR) in freshwater fish communities by occupying distinct trophic niches. Abstract The size spectrum, which describes the relationship between abundance (or biomass) and body size, is an ataxic approach that can provide ...
Valentin Marin +3 more
wiley +1 more source
A rare European species, Eurylophella karelica Tiensuu, 1935 (Ephemeroptera: Ephemerellidae) is reported for the first time from Ukraine. The larvae of the species were found within Ukrainian Polissya region in the Pripyat’ River basin.
Alexander V. Martynov
doaj +1 more source
We show that nutrient excretion by vertebrates and invertebrates varies nonlinearly with dissolved organic matter concentration and composition and by taxonomic rank, with stronger patterns at the individual compared to the community level. Our findings highlight the importance of examining animal‐mediated nutrient cycling across taxa and ecological ...
Sandra Klemet‐N'Guessan +3 more
wiley +1 more source

