Results 21 to 30 of about 3,359 (209)

Variable Fitness Response of Two Rotifer Species Exposed to Microplastics Particles: The Role of Food Quantity and Quality

Toxics, 2021
Plastic pollution is an increasing environmental problem, but a comprehensive understanding of its effect in the environment is still missing. The wide variety of size, shape, and polymer composition of plastics impedes an adequate risk assessment.
Claudia Drago, Guntram Weithoff
doaj   +1 more source

Trade-offs between defense and competitive traits in a planktonic predator-prey system. [PDF]

Ecology
Abstract Predator–prey interactions are crucial components of populations and communities. Their dynamics depend on the covariation of traits of the interacting organisms, and there is increasing evidence that intraspecific trade‐off relationships between defense and competitive traits are important drivers of trophic interactions. However, quantifying
Réveillon T, Becks L.
europepmc   +2 more sources

The genome of the freshwater monogonont rotifer Brachionus calyciflorus [PDF]

Molecular Ecology Resources, 2018
AbstractMonogononta is the most speciose class of rotifers, with more than 2,000 species. The monogonont genus Brachionus is widely distributed at a global scale, and a few of its species are commonly used as ecological and evolutionary models to address questions related to aquatic ecology, cryptic speciation, evolutionary ecology, the evolution of ...
Hui‐Su Kim, Bo‐Young Lee, Jeonghoon Han, Chang‐Bum Jeong, Dae‐Sik Hwang, Min‐Chul Lee, Hye‐Min Kang, Duck‐Hyun Kim, Hee‐Jin Kim, Spiros Papakostas, Steven A. J. Declerck, Ik‐Young Choi, Atsushi Hagiwara, Heum Gi Park, Jae‐Seong Lee   +14 more
openaire   +2 more sources

Effect of three food types on the population growth of Brachionus calyciflorus and Brachionus patulus (Rotifera: Brachionidae)

Revista de Biología Tropical, 2001
We compared the population growth of B. calyciflorus and B. patulus using the green alga Chlorella vulgaris, baker’s yeast Saccharomyces cerevisiae or their mixture in equal proportions as food. Food was offered once every 24 h in two concentrations (low:
S.S.S. Sarma, Paula Susana Larios Jurado, S. Nandini   +2 more
doaj   +4 more sources

Impact of single and repeated applications of the insecticide chlorpyrifos on tropical freshwater plankton communities [PDF]

, 2008
This paper describes the effects of a single and a repeated application of the organophosphorus insecticide chlorpyrifos on zooplankton and phytoplankton communities in outdoor microcosms in Thailand.
Brink, P.J., van den, Daam, M.A., Nogueira, A.J.A.   +2 more
core   +6 more sources

Adapting to an increasingly stressful environment: Experimental evidence for 'micro-evolutionary priming'. [PDF]

J Anim Ecol
Our study shows that exposure to low stress makes zooplankton populations more tolerant to extreme stress. This phenomenon, here called micro‐evolutionary priming, is rarely studied in animals. We provide strong evidence for its existence and explore its implications for the fate of populations in an increasingly stressful world.
Han S, Van den Brink PJ, Declerck SAJ.
europepmc   +2 more sources

Prey selectivity and functional response by larval red-eyed tetra Moenkhausia sanctaefilomenae (Steindachner, 1907) (Characiformes: Characidae)

Brazilian Archives of Biology and Technology, 2009
Studies were carried out to quantify the functional response and prey selectivity of larval (1-5 weeks old) of Moenkhausia sanctaefilomenae, a widely cultured ornamental fish, using four rotifers (Brachionus calyciflorus, B. havanaensis, B. patulus and B.
Jorge Gallardo Alanis, S.S.S. Sarma, S. Nandini   +2 more
doaj   +1 more source

Evaluation of the pollution pressures posed by groups of chemicals on British riverine invertebrate populations. [PDF]

Biol Rev Camb Philos Soc
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.
europepmc   +2 more sources

TOXICITY OF PREDNISOLONE, DEXAMETHASONE AND THEIR PHOTOCHEMICAL DERIVATIVES ON AQUATIC ORGANISMS [PDF]

, 2004
Light exposure of aqueous suspensions of prednisolone and dexamethasone causes their partial phototransformation. The photoproducts, isolated by chromatographic techniques, have been identified by spectroscopic means.
DELLA GRECA, MARINA, FIORENTINO, ANTONIO, ISIDORI M., LAVORGNA M., PREVITERA, LUCIO, RUBINO M., TEMUSSI, FABIO   +6 more
core   +1 more source

Comparative transcriptome analysis of obligately asexual and cyclically sexual rotifers reveals genes with putative functions in sexual reproduction, dormancy, and asexual egg production [PDF]

, 2013
© The Author(s), 2013. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in BMC Genomics 14 (2013): 412, doi:10.1186/1471-2164-14-412.Sexual reproduction is a widely studied ...
Hanson, Sara J., Logsdon, John M., Mark Welch, David B., Stelzer, Claus-Peter   +3 more
core   +1 more source