干旱区生态环境知识资源中心(Arid): The effects of woody plant encroachment and wildfire on plant species richness and composition: Temporal changes in a forest-steppe mosaic

Arid

DOI	10.1111/avsc.12546
	The effects of woody plant encroachment and wildfire on plant species richness and composition: Temporal changes in a forest-steppe mosaic
	Onodi, Gabor; Kertesz, Miklos; Lengyel, Attila; Pandi, Ildiko; Somay, Laszlo; Szitar, Katalin; Kroel-Dulay, Gyorgy
通讯作者	Onodi, G
来源期刊	APPLIED VEGETATION SCIENCE
ISSN	1402-2001
EISSN	1654-109X
英文摘要	Questions Woody plant encroachment and wildfire may both have major effects on species richness and composition, yet studies that assess these two factors in combination are rare. We asked the following specific questions: (1) how did juniper cover change over a decade in the study area; what are the effects of juniper encroachment and subsequent wildfire on(2) plant species richness; and (3) vegetation composition? Location Sand forest-steppe in Kiskunsag, Central Hungary. Methods We studied a juniper-encroached grassland hit by a wildfire. We assessed changes in plant species richness and composition in burnt and unburnt grassland and juniper plots for 11 years following the wildfire. Yearly vegetation sampling was performed in permanent quadrats of 1 m(2) and 25 m(2) using visual cover estimation. Temporal changes in juniper cover and species richness were evaluated with generalized linear mixed-effects models. Compositional changes were analysed by non-metric multidimensional scaling and fidelity analysis. Results At the beginning of the study, the presence of individual juniper shrubs increased species richness, and did not alter species composition. However, microsites covered by junipers were extremely species-poor. Juniper growth during the study period caused a sharp decline in species richness at the edge of juniper shrubs and a shift in species composition compared to grassland plots. Wildfire increased species richness both in grassland and juniper plots. It caused only transient compositional responses in grasslands, but converted juniper habitats back to the grassland state. Conclusions We conclude that neither moderate juniper encroachment nor wildfire have negative effects on plant species richness in the studied ecosystem. However, as juniper thickening may cause species loss and devastating fires, conservation management should prevent the development of dense juniper stands.
英文关键词	forest– steppe habitat management juniper post‐ fire recovery semi‐ arid grassland species composition species richness wildfire woody plant encroachment
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000595323600001
WOS关键词	SHRUB ENCROACHMENT ; JUNIPERUS-VIRGINIANA ; LANDSCAPE CHANGES ; GREAT-PLAINS ; FIRE REGIMES ; DIVERSITY ; GRASSLANDS ; VEGETATION ; COMMUNITIES ; ECOLOGY
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328569
作者单位	[Onodi, Gabor; Kertesz, Miklos; Lengyel, Attila; Somay, Laszlo; Szitar, Katalin; Kroel-Dulay, Gyorgy] Ctr Ecol Res, Inst Ecol & Bot, Alkotmany 2-4, H-2163 Vacratot, Hungary; [Pandi, Ildiko] Szent Istvan Univ Godoll Bot Garden, Godollo, Hungary
推荐引用方式 GB/T 7714	Onodi, Gabor,Kertesz, Miklos,Lengyel, Attila,et al. The effects of woody plant encroachment and wildfire on plant species richness and composition: Temporal changes in a forest-steppe mosaic[J].
APA	Onodi, Gabor.,Kertesz, Miklos.,Lengyel, Attila.,Pandi, Ildiko.,Somay, Laszlo.,...&Kroel-Dulay, Gyorgy.
MLA	Onodi, Gabor,et al."The effects of woody plant encroachment and wildfire on plant species richness and composition: Temporal changes in a forest-steppe mosaic".APPLIED VEGETATION SCIENCE