干旱区生态环境知识资源中心(Arid): Grazing reduces plant species diversity of Caatinga dry forests in northeastern Brazil

Arid

DOI	10.1111/avsc.12434
	Grazing reduces plant species diversity of Caatinga dry forests in northeastern Brazil
	Schulz, Katharina 1; Guschal, Maike 1,2; Kowarik, Ingo 1,3; de Almeida-Cortez, Jarcilene Silva 4; de Sa Barreto Sampaio, Everardo Valadares 5; Cierjacks, Arne 1
通讯作者	Schulz, Katharina
来源期刊	APPLIED VEGETATION SCIENCE
ISSN	1402-2001
EISSN	1654-109X
出版年	2019
卷号	22 期号:2 页码:348-359
英文摘要	Questions In many arid and semi-arid regions of the world, livestock husbandry is the main land use and grazing is one of the main challenges for biodiversity conservation. This also applies to the Caatinga, a unique seasonally dry tropical forest in northeastern Brazil. It is considered one of the most threatened ecosystems of Brazil. To protect semi-arid regions from biodiversity loss, degradation, and desertification, sustainable management practices are urgently needed. However, the effect of different grazing intensities on plant diversity is not yet fully understood. In this study, we examined the effect of different grazing intensities on plant species composition, alpha and beta diversity. Location Vicinity of the Itaparica Reservoir, northeastern Brazil. Methods We assessed the effects of different grazing intensities (high, intermediate, no/low) on species composition, alpha and beta diversity of the tree and shrub, and the herb layer in a Caatinga area. Plant diversity of the tree and shrub layer was assessed on 45 study plots (each 20 m x 20 m), while the diversity of herbs was studied on a subset of 36 plots (four subplots, each 2 m x 2 m). Results In total, we recorded 140 plant taxa including morphospecies. Grazing at high intensities significantly reduced almost all measures of alpha and beta diversity (tree and shrub layer) compared to areas with no or low grazing. In contrast, species composition was not significantly related to grazing but instead to altitude, which serves as an indicator of reduced anthropogenic impact such as slash-and-burn agriculture or tree harvesting. Conclusion Overall, the study results show that the current livestock management has negative effects on plant diversity in Caatinga ecosystems. These results have been incorporated into guidelines provided to regional stakeholders including recommendations for adapted land-management practices that protect and foster the biodiversity of dry forests while sustaining local livelihoods.
英文关键词	biodiversity Brazil Caatinga goats grazing intermediate disturbance hypothesis land management land use livestock husbandry seasonally dry tropical forest semi-arid
类型	Article
语种	英语
国家	Germany ; Brazil
收录类别	SCI-E
WOS记录号	WOS:000466383400014
WOS关键词	CARBON SEQUESTRATION ; HERBACEOUS COMMUNITY ; CONSERVATION ; REGENERATION ; ECOSYSTEMS ; VEGETATION ; LIVESTOCK ; NUTRIENT ; REGION ; KAROO
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/2XILL650/214287
作者单位	1.Tech Univ Berlin, Dept Ecol Ecosyst Sci Plant Ecol, Berlin, Germany; 2.Senckenberg Nat Hist Collect Dresden, Museum Zool, Dresden, Germany; 3.Berlin Brandenburg Inst Adv Biodivers Res BBIB, Berlin, Germany; 4.Univ Fed Pernambuco, Dept Bot, Ctr Biosci, Recife, PE, Brazil; 5.Univ Fed Pernambuco, Dept Nucl Energy, Ctr Technol, Recife, PE, Brazil; 6.Univ Appl Sci Dresden, Fac Agr Environm Chem, Dresden, Germany
推荐引用方式 GB/T 7714	Schulz, Katharina,Guschal, Maike,Kowarik, Ingo,et al. Grazing reduces plant species diversity of Caatinga dry forests in northeastern Brazil[J],2019,22(2):348-359.
APA	Schulz, Katharina,Guschal, Maike,Kowarik, Ingo,de Almeida-Cortez, Jarcilene Silva,de Sa Barreto Sampaio, Everardo Valadares,&Cierjacks, Arne.(2019).Grazing reduces plant species diversity of Caatinga dry forests in northeastern Brazil.APPLIED VEGETATION SCIENCE,22(2),348-359.
MLA	Schulz, Katharina,et al."Grazing reduces plant species diversity of Caatinga dry forests in northeastern Brazil".APPLIED VEGETATION SCIENCE 22.2(2019):348-359.