About: Overwintering of the boreal butterfly Colias palaeno in Central Europe

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About: Overwintering of the boreal butterfly Colias palaeno in Central Europe Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	BACKGROUND: Colias palaeno (Linnaeus, 1761) (Lepidoptera: Pieridae) is a butterfly with boreal distribution with declining populations in peat bogs and subalpine habitats in Central Europe. OBJECTIVE: We investigated the cold tolerance of overwintering caterpillars from one mountain population from Czech Republic (960m a.s.l.) and one alpine population from Italy (2000m a.s.l.). METHODS: We measured supercooling point (SCP), lower lethal temperature (LLT) and content of cryoprotectants. RESULTS: The caterpillars were freeze-avoiding, with lower LLT close to their very low SCP (-25 to -27 degrees C). The mountain population accumulated high concentrations of glycerol (5% fresh mass) and sugars (trehalose 0.8%, glucose 0.2%), while the Italian alpine population only moderate amounts of glycerol (0.3%) and sugars (trehalose 0.5%, glucose 0.3%) without effect on their cold hardiness. Larvae that overwintered at +5 degrees C had a lower body mass than those overwintering in natural conditions, indicating a metabolic weight loss, but both groups survived equally well. CONCLUSION: We hypothesize that the high concentration of glycerol contributes to the high desiccation tolerance. BACKGROUND: Colias palaeno (Linnaeus, 1761) (Lepidoptera: Pieridae) is a butterfly with boreal distribution with declining populations in peat bogs and subalpine habitats in Central Europe. OBJECTIVE: We investigated the cold tolerance of overwintering caterpillars from one mountain population from Czech Republic (960m a.s.l.) and one alpine population from Italy (2000m a.s.l.). METHODS: We measured supercooling point (SCP), lower lethal temperature (LLT) and content of cryoprotectants. RESULTS: The caterpillars were freeze-avoiding, with lower LLT close to their very low SCP (-25 to -27 degrees C). The mountain population accumulated high concentrations of glycerol (5% fresh mass) and sugars (trehalose 0.8%, glucose 0.2%), while the Italian alpine population only moderate amounts of glycerol (0.3%) and sugars (trehalose 0.5%, glucose 0.3%) without effect on their cold hardiness. Larvae that overwintered at +5 degrees C had a lower body mass than those overwintering in natural conditions, indicating a metabolic weight loss, but both groups survived equally well. CONCLUSION: We hypothesize that the high concentration of glycerol contributes to the high desiccation tolerance. (en)
Title	Overwintering of the boreal butterfly Colias palaeno in Central Europe Overwintering of the boreal butterfly Colias palaeno in Central Europe (en)
skos:prefLabel	Overwintering of the boreal butterfly Colias palaeno in Central Europe Overwintering of the boreal butterfly Colias palaeno in Central Europe (en)
skos:notation	RIV/60077344:_____/14:00435537!RIV15-GA0-60077344
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(GAP505/10/1630), P(GAP505/10/2167), S
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Nedvěd, Oldřich Konvička, Martin Zahradníčková, Helena
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	35500
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/14:00435537
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cold hardiness; cryoprotective polyols; insect conservation (en)
http://linked.open.../riv/klicoveSlovo	cryoprotective polyols cold hardiness insect conservation
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[441544EF83C5]
http://linked.open...i/riv/nazevZdroje	Cryo-letters
http://linked.open...in/vavai/riv/obor	ED
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Distribution atlas of Czech butterflies and large moths: model for assessment of biodiversity changes in Central Europe Ecophysiological limits of mountain butterflies and recent climate change - tolerance of hibernating larvae
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	35
http://linked.open...iv/tvurceVysledku	Konvička, Martin Nedvěd, Oldřich Zahradníčková, Helena Vrba, P. Cerrato, C. Dolek, M.
http://linked.open...ain/vavai/riv/wos	000338913200011
issn	0143-2044
number of pages	8 (xsd:int)

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