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Temperature Effects on Survival and DNA Repair in Four Freshwater Cladoceran Daphnia Species Exposed to UV Radiation
TLDR
The data strongly suggest that DNA damage is lethal to Daphnia and that photoenzymatic repair is the primary mechanism for removing these lesions.
Impact of Zooplankton Grazing on the Excystation, Viability, and Infectivity of the Protozoan Pathogens Cryptosporidium parvum and Giardia lamblia
TLDR
The data provide strong evidence that zooplankton grazers have the potential to substantially decrease the population of infectious C. parvum and G. lamblia in freshwater ecosystems.
Artificial UV-B and solar radiation reduce in vitro infectivity of the human pathogen Cryptosporidium parvum.
TLDR
Exposure to natural solar radiation can significantly reduce C. parvum infectivity, and direct effects of solar radiation on oocysts in nature will depend on the depth distribution of the oocyst, water transparency, mixing conditions, and perhaps other environmental factors such as temperature, pH, and stress.
Variation in Symbiodinium communities in juvenile Briareum asbestinum (Cnidaria: Octocorallia) over temporal and spatial scales
TLDR
The diversity of symbionT types initially acquired by young juveniles was not simply a subset of the symbiont types found in nearby host cnidarians, suggesting that the source of infecting symbionts was not solely local host populations.
Ultraviolet radiation affects invasibility of lake ecosystems by warm-water fish.
TLDR
Underwater UVR can regulate warm-water fish invasion and the susceptibility to invasion by UVR sensitive species may increase in transparent aquatic systems threatened by declining water quality, and the importance of abiotic factors as regulators of invasion risk in ecosystems is highlighted.
Deaf, Hard-of-Hearing, and Hearing Students in an Introductory Biology Course: College Readiness, Social Learning Styles, and Success
The maturity and development of students in baccalaureate degree programs has long been of interest to education research, but a focus on their ability to adapt to and transition between programs of
The role of ultraviolet radiation and fish in regulating the vertical distribution of Daphnia
TLDR
The behavioral response of adult and juvenile Daphnia to both UV and planktivorous fish simultaneously in a small temperate lake in eastern Pennsylvania is examined by conducting a large-scale in situ mesocosm experiment with full factorial treatments.
UV-Stressed Daphnia pulex Increase Fitness through Uptake of Vitamin D3
TLDR
A positive role for D3 in ecosystems as both UV-stressed algae and Daphnia sequester D3, and D. pulex demonstrate increased fitness in the presence of D3 is suggested.
Cascading Ecological Impacts of Fullerenes in Freshwater Ecosystems.
TLDR
The present study underscores the need to broaden the scope of traditional ecotoxicity for emerging materials: studies are required that evaluate portfolios of related nanomaterials and that capture chronic and cascading ecosystem-level effects.
The Intercontinental phylogeography of neustonic daphniids
TLDR
Neustonic daphniids have more divergent biogeographic lineages than previously appreciated and an introduction from the Western Nearctic to South America is suggested.
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