Search results for "Reproduction"

showing 2 items of 752 documents

Opinteitä ikääntyvien yliopistoon : sotien sukupolvi ja yliopiston ylistys

2014

yhteiskuntaluokateläkeläisetbiographical approachacademic standing of the studieselinikäinen oppiminensukupolvetkulttuurinen pääomaavoin yliopistostudying at an older ageperhetaustasosiaalinen periytyvyyseducational generationkoulutustaustacultural distinctionskorkea-asteen koulutusElämäkertatutkimussocial classikääntyneetcultural reproduction
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Does differential iron supply to algae affect Daphnia life history? : An ionome-wide study

2019

The availability of iron (Fe) varies considerably among diet items, as well as ecosystems. Availability of Fe has also changed due to anthropogenic environmental changes in oceanic as well as inland ecosystems. We know little about its role in the nutrition of ecologically important consumers, particularly in inland ecosystems. Physiological studies in several taxa indicate marked effects of dietary Fe on oogenesis. We predicted that differential Fe supply to algae will impact algal Fe concentration with consequences on the life history of the freshwater grazer, Daphnia magna. We found that algal Fe concentration increased with Fe supply, but did not affect algal growth, indicating that the…

zooplanktonecological stoichiometrynutrient limitationfungiplanktontrace metalsrautalisääntyminenreproductionravintovesikirputionomicsnutrient balance conceptravintoaineet
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