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Statements

Subject Item
n2:RIV%2F00216224%3A14310%2F10%3A00040506%21RIV11-MSM-14310___
rdf:type
n13:Vysledek skos:Concept
dcterms:description
This paper considers the numbers of species and individuals of terrestrial snails in small plots (quadrats) of different sizes (0.0625 m2, 0.25 m2, 0.56 m2) in three types of treeless fen sites differing in calcium content. It compares the results of considering only live individuals or of combining these with empty shells. In two of the three sizes of plots and all fen (mineral level) types there was a clear increase of species when empty shells were included. In very calcium rich sites, empty shells contribute significantly to a summary of the fauna in the plot over several years, and can improve the inventory efficiency of sampling. However, when comparisons are made among sites with different soil chemistry, estimates of densities and relative abundances will be distorted, because shells decay at different rates among them. Hence, in any studies concerned with densities or spatial heterogeneity within sites it is necessary to distinguish between live individuals and empty shells. This paper considers the numbers of species and individuals of terrestrial snails in small plots (quadrats) of different sizes (0.0625 m2, 0.25 m2, 0.56 m2) in three types of treeless fen sites differing in calcium content. It compares the results of considering only live individuals or of combining these with empty shells. In two of the three sizes of plots and all fen (mineral level) types there was a clear increase of species when empty shells were included. In very calcium rich sites, empty shells contribute significantly to a summary of the fauna in the plot over several years, and can improve the inventory efficiency of sampling. However, when comparisons are made among sites with different soil chemistry, estimates of densities and relative abundances will be distorted, because shells decay at different rates among them. Hence, in any studies concerned with densities or spatial heterogeneity within sites it is necessary to distinguish between live individuals and empty shells.
dcterms:title
Land snail species richness and abundance at small scales: the effects of distinguishing between live individuals and empty shells Land snail species richness and abundance at small scales: the effects of distinguishing between live individuals and empty shells
skos:prefLabel
Land snail species richness and abundance at small scales: the effects of distinguishing between live individuals and empty shells Land snail species richness and abundance at small scales: the effects of distinguishing between live individuals and empty shells
skos:notation
RIV/00216224:14310/10:00040506!RIV11-MSM-14310___
n3:aktivita
n14:Z n14:S n14:P
n3:aktivity
P(KJB601630501), P(KJB601630803), S, Z(MSM0021622416)
n3:cisloPeriodika
2
n3:dodaniDat
n4:2011
n3:domaciTvurceVysledku
n7:4215184 n7:5254140
n3:druhVysledku
n16:J
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
267835
n3:idVysledku
RIV/00216224:14310/10:00040506
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Fen; sampling quadrats; densities; species estimates
n3:klicoveSlovo
n6:sampling%20quadrats n6:Fen n6:species%20estimates n6:densities
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[8C149C8F011E]
n3:nazevZdroje
Journal of Conchology
n3:obor
n17:EG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:projekt
n12:KJB601630501 n12:KJB601630803
n3:rokUplatneniVysledku
n4:2010
n3:svazekPeriodika
40
n3:tvurceVysledku
Černohorská, Nicole Cameron, Robert Horsák, Michal
n3:wos
000278399300009
n3:zamer
n5:MSM0021622416
s:issn
0022-0019
s:numberOfPages
9
n8:organizacniJednotka
14310