Results 41 to 50 of about 32,854 (216)

Prey body size mediates the predation risk associated with being "odd" [PDF]

open access: yes, 2014
Despite selection pressures on prey animals to maintain phenotypically homogeneous groups, variation in phenotype within animal groups is commonly observed.
Downing, Beatrice   +2 more
core   +2 more sources

Acute and Chronic Toxicity of Sediments Containing Platinum and Palladium on Freshwater Benthic Organisms Chironomus riparius and Hyalella azteca

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT The expanding demand for platinum group elements (PGEs) in industrial and medical applications has led to their increasing accumulation in aquatic sediments. However, their ecological impacts remain poorly understood, particularly for sediment‐dwelling invertebrates. This study assessed the toxicity of platinum (Pt) and palladium (Pd) across a
Alice Carle   +3 more
wiley   +1 more source

An experimental study on the influence of the bloom-forming alga Gonyostomum semen (Raphidophyceae) on cladoceran species Daphnia magna

open access: yesKnowledge and Management of Aquatic Ecosystems, 2017
The effect of the unicellular, bloom-forming alga Gonyostomum semen (Raphidiophyceae) on the survival rate and body size of Daphnia magna was tested under experimental laboratory conditions.
Pęczuła Wojciech   +3 more
doaj   +1 more source

PENGARUH PEMBERIAN DOSIS HASIL FERMENTASI TEPUNG BIJI KEDELAI DENGAN RAGI TERHADAP PERTUMBUHAN POPULASI DAPHNIA MAGNA [PDF]

open access: yes, 2016
ABSTRAKPenelitian ini bertujuan untuk mengetahui dosis yang tepat terhadap laju pertumbuhan populasi Daphnia magna. Penelitian ini dilaksanakan di Balai Perikanan Budidaya Air Payau (BPBAP) Ujung Batee, Aceh Besar, Juli 2015.
Wahyu Prastya
core  

Calcium limitation in Daphnia magna [PDF]

open access: yesJournal of Plankton Research, 2000
The role of ambient calcium concentrations on survival, moulting, growth and egg produc- tion was assessed in the cladoceran Daphnia magna. A threshold for survival was found in the range 0.1-0.5 mg Ca l-1, even when ionic strength of the medium was kept constant. Accumulated length and length specific dry weight was retarded at low Ca (0.5-1.0 mg Ca l-
openaire   +1 more source

The first-generation Daphnia magna linkage map [PDF]

open access: yesBMC Genomics, 2010
Daphnia magna is a well-established model species in ecotoxicology, ecology and evolution. Several new genomics tools are presently under development for this species; among them, a linkage map is a first requirement for estimating the genetic background of phenotypic traits in quantitative trait loci (QTL) studies and is also very useful in assembling
Routtu, J.   +4 more
openaire   +5 more sources

The Individual and Combined Effects of Warming and Atrazine on Lithobates pipiens Phenotypes: Implications for Frog Declines

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Amphibians are the most threatened vertebrate class globally. Climate change, agrochemicals, and/or pathogens and parasites are implicated in contributing to amphibian declines, either singly or in combination. We investigated individual and combined effects of elevated temperatures and atrazine (2.0 μg/L) on Lithobates [formerly Rana] pipiens
Melody J. Gavel   +7 more
wiley   +1 more source

Generation of white-eyed Daphnia magna mutants lacking scarlet function. [PDF]

open access: yesPLoS ONE, 2018
The crustacean Daphnia magna is an important model in multi-disciplinary scientific fields such as genetics, evolutionary developmental biology, toxicology, and ecology. Recently, the draft genome sequence and transcriptome data became publicly available
Nur Izzatur Binti Ismail   +3 more
doaj   +1 more source

Synthesizing the role of epigenetics in the response and adaptation of species to climate change in freshwater ecosystems [PDF]

open access: yes, 2018
Freshwater ecosystems are amongst the most threatened ecosystems on Earth. Currently, climate change is one of the most important drivers of freshwater transformation and its effects include changes in the composition, biodiversity and functioning of ...
Allen   +166 more
core   +1 more source

Generating Tagged Micro‐ and Nanoparticles of Poly(ethylene furanoate) and Poly(ethylene terephthalate) as Reference Materials

open access: yesMacromolecular Rapid Communications, EarlyView.
We successfully developed poly(ethylene terephthalate) (PET) and poly(ethylene furanoate) (PEF) nanoparticles and microparticles, covalently tagged with Alexa Fluor 633 or Alexa Fluor 647, using both mechanical and solvent‐based approaches. The particles displaying hydrodynamic diameters between 200 and 700 nm, exhibited long‐term colloidal stability ...
Redoy Gazi Shuvo   +10 more
wiley   +1 more source

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