Results 11 to 20 of about 74,500 (289)
AbstractThe microcrustaceanDaphniais arguably one of the most studied zooplankton species, having a well understood ecology, life history, and a relatively well studied evolutionary history. Despite this wealth of knowledge, species boundaries within closely related species in this genus often remain elusive and the major evolutionary forces driving ...
Tiffany A. Chin, Melania E. Cristescu
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Evaluation of the pollution pressures posed by groups of chemicals on British riverine invertebrate populations. [PDF]
ABSTRACT Globally, rivers receive a diverse range of chemicals, including metals, pesticides, persistent organic pollutants, petrochemicals, human and veterinary pharmaceuticals and personal care products. However, the extent to which these different chemical groups affect riverine invertebrate communities is not well defined.
Poyntz-Wright IP, Harrison XA, Tyler CR.
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Visibility as a factor in the copepod-planktivorous fish relationship
The question we treat in this contribution is whether or not planktivorous fish can use the motion pattern of planktonic copepods to distinguish these animals from other suspended particles in the water.
J. Rudi Strickler +5 more
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Experimental evolution reveals high insecticide tolerance in Daphnia inhabiting farmland ponds [PDF]
Exposure of nontarget populations to agricultural chemicals is an important aspect of global change. We quantified the capacity of natural Daphnia magna populations to locally adapt to insecticide exposure through a selection experiment involving ...
Agra +36 more
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Nocardioides daphniae sp. nov., isolated from Daphnia cucullata (Crustacea: Cladocera) [PDF]
A Gram-positive, rod-shaped or coccoid, yellow-pigmented bacterial strain, D287(T), was isolated from the water flea Daphnia cucullata (Crustacea: Cladocera) collected from Lake Balaton in Hungary. Phylogenetic analysis on the basis of 16S rRNA gene sequence comparisons revealed that the strain represented a distinct lineage within the cluster of the ...
Erika M, Tóth +5 more
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Daphnia is a genus of small, aquatic, crustaceans, belonging to the Daphniidae family. Daphnia are important components of freshwater food chains.
O. Ivanets
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Modeling Vortex Swarming In Daphnia [PDF]
24 pages including 11 multi-part figs. Major revisions compared to version 1, new results on transition from uncorrelated rotation to vortex swarming. Extended discussion.
Mach, Robert, Schweitzer, Frank
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Food quantity and quality shapes reproductive strategies of Daphnia
In freshwater environments, one of the challenges aquatic grazers face are periods of suboptimal food quantity and quality. In a life table experiment, the effects of food quantity (a gradient of algae concentration) and quality (a diet of cyanobacteria)
Anna Bednarska
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AbstractGenetic variants of mitochondrial DNA at the individual (heteroplasmy) and population (polymorphism) levels provide insight into their roles in multiple cellular and evolutionary processes. However, owing to the paucity of genome-wide data at the within-individual and population levels, the broad patterns of these two forms of variation remain ...
Zhiqiang Ye +6 more
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This paper examines the zooplankton abundance and composition along with various environmental factors in Lake Arekit – a shallow freshwater habitat in Ethiopia’s rift valley system. Zooplankton samples and specific environmental data were collected by a
Yirga Enawgaw +3 more
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