About: Over-wintering Daphnia: uncoupling the effects of temperature and food on offspring size and filtering screen morphology in D. galeata

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About: Over-wintering Daphnia: uncoupling the effects of temperature and food on offspring size and filtering screen morphology in D. galeata Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Field investigation of seasonal variation of filtering setae number (FSN) in the filtering screens of D. galeata showed a clear tendency toward low FSN in animals with low temperature and food levels (an over-wintering population and a deep-hypolimnion-inhabiting part of the population). Laboratory experiments were carried out to uncouple the effects of temperature and food level on the size of neonates and FSN in their filtering apparatus. Results of the first experiments indicated that temperature is the main factor inducing the changes in FSN and the induction takes place during embryogenesis. These results were confirmed in the second experiment. Eggs from the same clutch incubated in vitro at temperatures of 19°C, 10°C, and 6°C developed into neonates with smaller carapace length with decreasing temperature. Smaller neonates had lower FSN in their filtering screens. These results provide experimental evidence of temperature mediated embryonic induction in Daphnia galeata and contribute to an understanding of the proximate causes of the morphological features observed in over-wintering populations in the field. Field investigation of seasonal variation of filtering setae number (FSN) in the filtering screens of D. galeata showed a clear tendency toward low FSN in animals with low temperature and food levels (an over-wintering population and a deep-hypolimnion-inhabiting part of the population). Laboratory experiments were carried out to uncouple the effects of temperature and food level on the size of neonates and FSN in their filtering apparatus. Results of the first experiments indicated that temperature is the main factor inducing the changes in FSN and the induction takes place during embryogenesis. These results were confirmed in the second experiment. Eggs from the same clutch incubated in vitro at temperatures of 19°C, 10°C, and 6°C developed into neonates with smaller carapace length with decreasing temperature. Smaller neonates had lower FSN in their filtering screens. These results provide experimental evidence of temperature mediated embryonic induction in Daphnia galeata and contribute to an understanding of the proximate causes of the morphological features observed in over-wintering populations in the field. (en)
Title	Over-wintering Daphnia: uncoupling the effects of temperature and food on offspring size and filtering screen morphology in D. galeata Over-wintering Daphnia: uncoupling the effects of temperature and food on offspring size and filtering screen morphology in D. galeata (en)
skos:prefLabel	Over-wintering Daphnia: uncoupling the effects of temperature and food on offspring size and filtering screen morphology in D. galeata Over-wintering Daphnia: uncoupling the effects of temperature and food on offspring size and filtering screen morphology in D. galeata (en)
skos:notation	RIV/60077344:_____/13:00394495!RIV14-AV0-60077344
http://linked.open...avai/predkladatel	Biologické centrum AV ČR, v. v. i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA206/09/1325)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Macháček, Jiří Seďa, Jaromír
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Biologické centrum AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	95043
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/13:00394495
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Daphnia size; filtering screens; phenotypic plasticity; embryonic induction; temperature effect (en)
http://linked.open.../riv/klicoveSlovo	Daphnia size embryonic induction filtering screens temperature effect phenotypic plasticity
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[D3A1CE364C69]
http://linked.open...i/riv/nazevZdroje	Journal of Plankton Research
http://linked.open...in/vavai/riv/obor	DA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Cyclical parthenogenesis in vertically diversified environment: genetic differentiation and reproductive segregation in population of Daphnia galeata
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	35
http://linked.open...iv/tvurceVysledku	Macháček, Jiří Seďa, Jaromír
http://linked.open...ain/vavai/riv/wos	000323966900012
issn	0142-7873
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1093/plankt/fbt060

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