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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F13%3A10191941%21RIV14-MSM-11310___
rdf:type
skos:Concept n8:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1111/j.1600-0706.2012.20268.x
dcterms:description
Many plant communities show strong fine-scale spatiotemporal dynamics due to frequent natality and mortality events. This process is often non-random, implying that the community can be broken into groups within which species mutually replace each other in time and are distinct from the other such groups. We examined whether such groups fill separate niches and are functionally complementary in a species-rich mountain grassland. We used cluster analysis of fine-scale spatial data time series to discern which species were more likely to replace each other in space. Next, a four-year removal experiment (removing one group in each experimental treatment, or similar amount of biomass across all groups) was used to determine whether simultaneous occurrence of all these groups would maintain a greater total biomass than if an entire group were eliminated. The results do not support the hypothesis that the simultaneous presence of groups of species that replace each other in space is necessary for the community to attain its maximum biomass. However, the experiment showed strong differences among the replacement groups in their capacity for opportunistic behaviour: some groups responded quickly to space made available by removal while others did not. Furthermore, there were strong differences between groups composed primarily of grasses and groups composed primarily of dicots. In spite of the large differences among these groups, they are not functionally complementary. We therefore conclude that replacement processes in this grassland community more closely resemble a neutral process with sets of species differing in the speed at which they fill empty spaces. Many plant communities show strong fine-scale spatiotemporal dynamics due to frequent natality and mortality events. This process is often non-random, implying that the community can be broken into groups within which species mutually replace each other in time and are distinct from the other such groups. We examined whether such groups fill separate niches and are functionally complementary in a species-rich mountain grassland. We used cluster analysis of fine-scale spatial data time series to discern which species were more likely to replace each other in space. Next, a four-year removal experiment (removing one group in each experimental treatment, or similar amount of biomass across all groups) was used to determine whether simultaneous occurrence of all these groups would maintain a greater total biomass than if an entire group were eliminated. The results do not support the hypothesis that the simultaneous presence of groups of species that replace each other in space is necessary for the community to attain its maximum biomass. However, the experiment showed strong differences among the replacement groups in their capacity for opportunistic behaviour: some groups responded quickly to space made available by removal while others did not. Furthermore, there were strong differences between groups composed primarily of grasses and groups composed primarily of dicots. In spite of the large differences among these groups, they are not functionally complementary. We therefore conclude that replacement processes in this grassland community more closely resemble a neutral process with sets of species differing in the speed at which they fill empty spaces.
dcterms:title
Mutual replacement of species in space in a grassland community: is there an evidence for functional complementarity of replacement groups? Mutual replacement of species in space in a grassland community: is there an evidence for functional complementarity of replacement groups?
skos:prefLabel
Mutual replacement of species in space in a grassland community: is there an evidence for functional complementarity of replacement groups? Mutual replacement of species in space in a grassland community: is there an evidence for functional complementarity of replacement groups?
skos:notation
RIV/00216208:11310/13:10191941!RIV14-MSM-11310___
n8:predkladatel
n9:orjk%3A11310
n3:aktivita
n15:I n15:P
n3:aktivity
I, P(GA206/09/1471)
n3:cisloPeriodika
1
n3:dodaniDat
n7:2014
n3:domaciTvurceVysledku
n16:8993971
n3:druhVysledku
n19:J
n3:duvernostUdaju
n21:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
90251
n3:idVysledku
RIV/00216208:11310/13:10191941
n3:jazykVysledku
n13:eng
n3:klicovaSlova
scale; coexistence; diversity; removal experiments; phenotypic plasticity; assembly rules; plant community; ecosystem processes; limiting similarity; recruitment limitation
n3:klicoveSlovo
n4:ecosystem%20processes n4:diversity n4:removal%20experiments n4:coexistence n4:plant%20community n4:phenotypic%20plasticity n4:assembly%20rules n4:limiting%20similarity n4:recruitment%20limitation n4:scale
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[40F67CC67EDE]
n3:nazevZdroje
Oikos
n3:obor
n5:EH
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:projekt
n14:GA206%2F09%2F1471
n3:rokUplatneniVysledku
n7:2013
n3:svazekPeriodika
122
n3:tvurceVysledku
Skálová, Hana Krahulec, František Březina, Stanislav Herben, Tomáš Hadincová, Věra
n3:wos
000313748800011
s:issn
0030-1299
s:numberOfPages
11
n17:doi
10.1111/j.1600-0706.2012.20268.x
n18:organizacniJednotka
11310