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The impact of livestock grazing and canopy gaps on species pool and functional diversity of ground flora in the Caspian beech forests of Iran

dc.date.accessioned2021-08-04T12:40:48Z
dc.date.available2021-08-04T12:40:48Z
dc.date.issued2021-06-05
dc.identifierdoi:10.17170/kobra-202107294436
dc.identifier.urihttp://hdl.handle.net/123456789/13076
dc.description.sponsorshipGefördert im Rahmen des Projekts DEAL; Alexander von Humboldt-Stiftungger
dc.language.isoengeng
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectbiodiversity conservationeng
dc.subjectclosed foresteng
dc.subjectclose-to-nature silvicultureeng
dc.subjectforest gapseng
dc.subjectforest pastureseng
dc.subjectfunctional divergenceeng
dc.subjectfunctional richnesseng
dc.subjectspecies diversityeng
dc.subjecttrait attributeseng
dc.subjectunderstorey vegetationeng
dc.subject.ddc500
dc.subject.ddc570
dc.titleThe impact of livestock grazing and canopy gaps on species pool and functional diversity of ground flora in the Caspian beech forests of Iraneng
dc.typeAufsatz
dcterms.abstractQuestions Livestock grazing is an important disturbance in many forest ecosystems. While several studies have addressed the general impact of different grazing and light intensities on temperate forest ecosystems, little is known about how the combination of these two factors can affect the species pool and functional diversity of temperate forests. Location Oriental beech forests of northern Iran. Methods Vegetation and environmental data of 104 relevés were collected. These were assigned to four groups based on their light and grazing intensities. Non-metric multidimensional scaling was used to analyze vegetation compositional relationships among groups. We used nine functional traits related to growth, reproduction, and survival for a total of 147 plant species. Redundancy analysis of community-weighted means was used to determine the response of single traits to disturbance and environmental variables. Generalized additive models were applied to examine the shape of the response pattern of community-weighted mean trait values across the grazing and light intensity gradients. Functional richness and functional divergence indices were used to analyze functional diversity–disturbance relationships. Results Both light and grazing intensities significantly affected species pools, single traits, and functional divergence. Suites of trait attributes including hemicryptophytes, therophytes, grass-like, hygromorphic leaves, insect-pollinated, rhizomes, and runner plants were associated with high-light sites. In closed-canopy sites the strong filtering effect of shade resulted in suites of trait attributes including taller plants, macrophanerophytes, scleromorphic leaves, simple leaves, and berry fruits. While high-light sites had a larger species pool, they exhibited less functional diversity. Cattle grazing can mediate the filtering effect of light and increase functional diversity in both low-light and high-light sites. Conclusion Conservation measures in this region should acknowledge that moderate traditional cattle grazing combined with individual-tree and group-tree selection in these forests may maintain or even enhance functional diversity in these valuable ecosystems.eng
dcterms.accessRightsopen access
dcterms.creatorShakeri, Zahed
dcterms.creatorSimberloff, Daniel
dcterms.creatorBernhardt-Römermann, Markus
dcterms.creatorEckstein, Rolf Lutz
dc.relation.doidoi:10.1111/avsc.12592
dc.subject.swdIranger
dc.subject.swdBiodiversitätger
dc.subject.swdErhaltungger
dc.subject.swdNaturschutzger
dc.subject.swdWaldger
dc.subject.swdForstwirtschaftger
dc.subject.swdWaldweideger
dc.subject.swdArtenreichtumger
dc.subject.swdUnterholzger
dc.subject.swdWeidetiereger
dc.type.versionpublishedVersion
dcterms.source.identifiereissn:1654-109X
dcterms.source.issueIssue 3
dcterms.source.journalApplied Vegetation Scienceeng
dcterms.source.volumeVolume 24
kup.iskupfalse
dcterms.source.articlenumbere12592


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