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Statements

Subject Item
n2:RIV%2F60076658%3A12310%2F06%3A00006820%21RIV07-MSM-12310___
rdf:type
skos:Concept n12:Vysledek
dcterms:description
For population viability analysis of endangered orchid populations, it is crucial to disentangle the effects of weather and management from intrinsic orchid dynamics. When doing this, typically several months' average temperatures and/or sums of precipitations are compared with some characteristics of plant performance. Here we tested, whether short averaging intervals (1-2 weeks) are more closely correlated with orchid performance. We used 5 years of data from five Dactylorhiza majalis populations, and have shown that the improvement of prediction by shortening the interval over which the temperatures are averaged or precipitation summed, even if detectable, is only weak and not significant. This, however, may be due to low weather variability during the study. Regarding the second aspect, the effect of management (presence or absence of mowing), we have found that leaf area of D. majalis at the regularly mown site was larger than that at the sites which were mown only once in 2 years, but we di For population viability analysis of endangered orchid populations, it is crucial to disentangle the effects of weather and management from intrinsic orchid dynamics. When doing this, typically several months' average temperatures and/or sums of precipitations are compared with some characteristics of plant performance. Here we tested, whether short averaging intervals (1-2 weeks) are more closely correlated with orchid performance. We used 5 years of data from five Dactylorhiza majalis populations, and have shown that the improvement of prediction by shortening the interval over which the temperatures are averaged or precipitation summed, even if detectable, is only weak and not significant. This, however, may be due to low weather variability during the study. Regarding the second aspect, the effect of management (presence or absence of mowing), we have found that leaf area of D. majalis at the regularly mown site was larger than that at the sites which were mown only once in 2 years, but we di Pro analýzu životaschopnosti populace ohrožených orchidejí je zásadním krokem oddělení vlivu počasí a managementu od vnitřní dynamiky orchidejí. V tomto článku analyzujeme vliv teploty a srážek na chování druhu Dactylorhiza majalis a testujeme, zda lze vylepšit předpověd jeho chování zkrácením intervalu, v jehož rámci povětrnostní data průměrujeme. Dále se zabýváme vlivem kosení a zástinu na populační dynamiku rostlin.
dcterms:title
Relative effects of management and environmental conditions an performance and survival of populations of a terrestrial orchid, Dactylorhiza majalis Vliv managementu a životních podmínek na vitalitu a přežívání populací terestrické orchideje Dactylorhiza majalis. Relative effects of management and environmental conditions an performance and survival of populations of a terrestrial orchid, Dactylorhiza majalis
skos:prefLabel
Vliv managementu a životních podmínek na vitalitu a přežívání populací terestrické orchideje Dactylorhiza majalis. Relative effects of management and environmental conditions an performance and survival of populations of a terrestrial orchid, Dactylorhiza majalis Relative effects of management and environmental conditions an performance and survival of populations of a terrestrial orchid, Dactylorhiza majalis
skos:notation
RIV/60076658:12310/06:00006820!RIV07-MSM-12310___
n3:strany
40-49
n3:aktivita
n6:S n6:P
n3:aktivity
P(GD206/03/H034), S
n3:cisloPeriodika
1
n3:dodaniDat
n14:2007
n3:domaciTvurceVysledku
n11:2861119 n11:6611818 n11:5630231
n3:druhVysledku
n18:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
497105
n3:idVysledku
RIV/60076658:12310/06:00006820
n3:jazykVysledku
n13:eng
n3:klicovaSlova
management; mowing; shading; species composition; weather effects
n3:klicoveSlovo
n10:species%20composition n10:management n10:weather%20effects n10:mowing n10:shading
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[89D41C8DD877]
n3:nazevZdroje
Biological Conservation
n3:obor
n4:EH
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
5
n3:projekt
n5:GD206%2F03%2FH034
n3:rokUplatneniVysledku
n14:2006
n3:svazekPeriodika
129
n3:tvurceVysledku
Schödelbauerová, Iva Wotavová, Kateřina Jersáková, Jana Kindlmann, Pavel Janečková, Petra
s:issn
0006-3207
s:numberOfPages
10
n15:organizacniJednotka
12310