2016
A quest for species-level indicator values for disturbance
HERBEN, Tomáš, Milan CHYTRÝ a Jitka KLIMEŠOVÁZákladní údaje
Originální název
A quest for species-level indicator values for disturbance
Autoři
HERBEN, Tomáš (203 Česká republika), Milan CHYTRÝ (203 Česká republika, garant, domácí) a Jitka KLIMEŠOVÁ (203 Česká republika)
Vydání
Journal of Vegetation Science, Wiley, 2016, 1100-9233
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.924
Kód RIV
RIV/00216224:14310/16:00087921
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000375147500021
Klíčová slova anglicky
Bioindication; Clonal traits; Disturbance frequency; Disturbance intensity; Disturbance severity; Ecological indicators; Expert judgement; Plant height at maturity; Plant longevity; Seed size; Vascular plants; Vegetation structure
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 13. 3. 2018 10:25, Mgr. Lucie Jarošová, DiS.
Anotace
V originále
Question: Is it possible to construct indicator values that would place individual species on gradients of disturbance frequency and severity? We suggest that such indicator values could be defined on the basis of the disturbance regimes under which individual species occur, to be independent of their traits. They should also separate disturbance frequency from disturbance severity. Location: Czech Republic. Methods: We used a stratified set of 30 115 vegetation-plot records sampled over the whole country and classified into 39 phytosociological vegetation classes. Each class was assigned values of disturbance frequency and severity by expert judgement. A Disturbance Frequency Index for each species was calculated as the mean of the common logarithm of the disturbance frequency of all vegetation classes weighted by occurrence frequencies of this species in those classes. A Disturbance Severity Index was defined as mean disturbance severity of all vegetation classes weighted by occurrence frequencies of this species in those classes. For forest vegetation, indices were computed separately for the whole community and for the herb layer, which experiences different types of disturbance. Further, we constructed a disturbance index from vegetation structural parameters, viz. summed covers and community-weighted mean of height at maturity of species recorded in each plot for each vegetation class. We assessed all indices by comparing their values with data on functional traits of the species. Results: We calculated values of the indices for 1248 species. The Disturbance Frequency Index and Disturbance Severity Index were correlated, but still described different responses of individual species to disturbance. The index based on vegetation structure was correlated mainly with the Disturbance Frequency Index. All indices showed strong relationships to plant traits: species with high values of all disturbance indices tended to have small seeds, to be annual and non-clonal or able to spread clonally over large distances. Conclusions: Constructing species disturbance indices based on vegetation characteristics, not plant traits, is feasible and provides meaningful scores. A similar approach can be used in any region where sufficient vegetation data are available. Disturbance indices can be used to address a number of questions in plant evolution and community or landscape ecology.
Návaznosti
| GB14-36079G, projekt VaV |
|