Results 31 to 40 of about 32,854 (216)
No evidence for genetic sex determination in
Royal Society Open Science, 2021 Mechanisms of sex determination (SD) differ widely across the tree of life. In genotypic sex determination (GSD), genetic elements determine whether individuals are male or female, while in environmental sex determination (ESD), external cues control the
Luca Cornetti, Dieter Ebert
doaj +1 more source
Effect of large- and small- bodied zooplankton on phytoplankton in a eutrophic oxbow [PDF]
, 2005 Macrozooplankton and microzooplankton effects on the phytoplankton were measured in situ in a eutrophic lake. Indigenous phytoplankton were incubated for 5 days in 301 mesocosms with either the macro- and microzooplankton (complete), microzooplankton ...
Borbély, György +5 more
core +1 more source
Co-encapsulation of Daphnia magna and microalgae in silica matrices, a stepping stone toward a portable microcosm [PDF]
, 2014 We report on the first silica encapsulation of a metazoan (Daphnia magna), with a high initial viability (96% of the population remained active 48 h after encapsulation).
Aldabe, Sara Alfonsina +4 more
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INHERITANCE DURING PARTHENOGENESIS IN DAPHNIA MAGNA [PDF]
Genetics, 1972 ABSTRACT Natural populations of Daphnia magna have been found which are polymorphic for electrophoretic variants of supernatant malic dehydrogenase, esterase, and alkaline phosphatase. Using these enzyme variants as genetic markers it has been possible to demonstrate the absence of recombination during parthenogenetic reproduction ...
P D, Hebert, R D, Ward
openaire +2 more sources
Advanced Sustainable Systems, EarlyView.Nanosafety data provide a guiding example for establishing best practices in data management, aligning with FAIR principles and quality criteria. This review explores existing quality assessment approaches for reliability, relevance, and completeness, emphasizing the need for harmonization and adaptation to nanomaterials and advanced materials. The aim
Verónica I. Dumit +43 more
wiley +1 more source
Nanomaterials, 2022 A ternary nanocomposite made of nanomaghemite, nanoanatase, and graphene oxide has been successfully synthesized using an inorganic coprecipitation approach, and it has been systematically investigated by X-ray diffraction, transmission electron ...
Juan A. Ramos-Guivar +6 more
doaj +1 more source
An assessment of the bioaccumulation of estrone in Daphnia magna [PDF]
, 2004 The bioaccumulation of estrone by Daphnia magna was determined. Direct uptake via the aqueous medium occurred within the first 16 hours. A bioconcentration factor of 228 was established over all temporal periods.
Birkett, JW +5 more
core
Continuous Structured Population Models for Daphnia magna [PDF]
Bulletin of Mathematical Biology, 2017 We continue our efforts in modeling Daphnia magna, a species of water flea, by proposing a continuously structured population model incorporating density-dependent and density-independent fecundity and mortality rates. We collected new individual-level data to parameterize the individual demographics relating food availability and individual daphnid ...
Erica M, Rutter +3 more
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Environmental Toxicology and Chemistry, EarlyView.Cross‐species extrapolation of adverse outcome pathway network on reproductive toxicity under the One Health perspective using new approach methodologies. AOP = adverse outcome pathway. Abstract Although ecotoxicological and toxicological risk assessments are performed separately from each other, recent efforts have been made in both disciplines to ...
Elizabeth Dufourcq Sekatcheff +2 more
wiley +1 more source
Phenotypically Plastic Responses to Predation Risk Are Temperature Dependent [PDF]
, 2019 Predicting how organisms respond to climate change requires that we understand the temperature dependence of fitness in relevant ecological contexts (e.g., with or without predation risk).
Cressler, Clayton E. +3 more
core +1 more source