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Mitochondrial sequence variation suggests extensive cryptic diversity within the Western Palearctic Daphnia longispina complex
Mitochondrial sequence variation extensive cryptic diversity the Western Palearctic Daphnia longispina complex
2014/4/2
We report on a discovery of six divergent lineages within the European Daphnia longispina complex from various localities in central to northeast Europe. The levels of divergence from well-known speci...
The role of ultraviolet radiation and fish in regulating the vertical distribution of Daphnia
The role of ultraviolet radiation fish in regulating vertical distribution of Daphnia
2014/4/2
Previous studies have demonstrated independent effects of both solar ultraviolet radiation (UV; 280–400 nm) and planktivorous fish on the vertical distribution of Daphnia. We examined the behavioral r...
Mitochondrial sequence variation suggests extensive cryptic diversity within the Western Palearctic Daphnia longispina complex
Mitochondrial sequence variation extensive cryptic diversity the Western Palearctic Daphnia longispina complex
2014/4/4
We report on a discovery of six divergent lineages within the European Daphnia longispina complex from various localities in central to northeast Europe. The levels of divergence from well-known speci...
The role of ultraviolet radiation and fish in regulating the vertical distribution of Daphnia
The role of ultraviolet radiation ish in regulating vertical distribution of Daphnia
2014/4/4
Previous studies have demonstrated independent effects of both solar ultraviolet radiation (UV; 280–400 nm) and planktivorous fish on the vertical distribution of Daphnia. We examined the behavioral r...
Rapid evolution of phenoloxidase expression, a component of innate immune function, in a natural population of Daphnia magna
Rapid evolution phenoloxidase expression innate immune function in a natural population Daphnia magna
2014/4/17
We show rapid microevolution of one component of invertebrate innate immunity, phenoloxidase activity, in a natural population of the water fleaDaphnia magna.InDaphniahatched out of different depths o...
Upward phosphorus transport by Daphnia diel vertical migration
Daphnia diel vertical migration phosphorus
2014/4/16
In many lakes, zooplankton show a distinct diel vertical migration (DVM) behavior, especially during periods
of stratification. Excretion products of these zooplankton could potentially cause an upwa...
Living in transparent lakes: Low food P:C ratio decreases antioxidant response to ultraviolet radiation in Daphnia
Living in transparent lakes Low food P:C ratio decreases antioxidant response ultraviolet radiation in Daphnia
2014/4/21
We experimentally tested the effect of food quality (phosphorus [P] : carbon [C] ratio) on the response of antioxidant enzymes to ultraviolet radiation (UVR) in Daphnia commutata fed with Chlamydomona...
Biochemical food quality effects on a Daphnia hybrid complex
Biochemical food quality a Daphnia hybrid complex
2014/4/21
Correlative field studies have shown that the food quality of natural seston for Daphnia is highly correlated with the content of eicosapentaenoic acid (EPA), indicating that the growth of Daphnia in ...
Nutritional constraints at the cyanobacteria–Daphnia magnainterface: The role of sterols
Nutritional constraints the cyanobacteria–Daphnia magnainter face sterols
2014/4/21
In past decades, a considerable amount of research has been conducted to elucidate the factors that affect the carbon transfer across the cyanobacteria–Daphniainterface. It is well accepted that cyano...
Reproductive isolation keeps hybridizing Daphnia species distinct
Reproductive isolation hybridizing Daphnia species distinct
2014/4/22
We asked whether pre- (e.g., assortative mating, temporal isolation) or postzygotic (e.g., hybrid inviability, infertility) barriers are more likely to affect the hybridization between Daphnia galeata...
A direct test of cyanobacterial chemical defense: Variable effects of microcystin-treated food on two Daphnia pulicaria clones
cyanobacterial chemical defense microcystin-treated food two Daphnia pulicaria clones
2014/4/22
To determine the direct effects of microcystin on the fitness of herbivorous zooplankton, we experimentally added microcystin-LR to freeze-dried cells of palatable Chlorella and fed these compound-tre...
Change in filter-screen morphology and depth selection: Uncoupled responses of Daphnia to the presence of filamentous cyanobacteria
filter-screen morphology depth selection: Uncoupled responses filamentous cyanobacteria
2014/4/21
In many eutrophic lakes, ability to cope with filamentous cyanobacteria is crucial to Daphnia fitness, as the filaments can reduce food intake by interference with food-particle retention. Two basic m...
Kinetics of phosphorus in Daphnia at different food concentrations and carbon:phosphorus ratios
Kinetics of phosphorus in Daphnia different food concentrations carbon:phosphorus ratios
2014/4/22
We examined the assimilation efficiency, excretion, and efflux of phosphorus (P) in adults and juveniles of Daphnia magna under different food levels (2-40 μg P L-1) and dietary carbon : phosphorus (C...
We conducted a series of experiments feeding Daphnia pulex nine different phytoplankton monocultures with widely varying fatty acid composition and nutritional values to test the extent to which Daphn...
Phytoplankton essential fatty acid and phosphorus content constraints on Daphnia somatic growth and reproduction
Phytoplankton essential fatty acid phosphorus content constraints Daphnia somatic growth reproduction
2014/5/5
We performed 12 experiments where the herbivorous zooplankter Daphnia pulex was fed three different phytoplankton food types (cyanophytes, chlorophytes, or cryptophytes) at two phosphorus (P) deficien...