干旱区生态环境知识资源中心(Arid): High species turnover of arthropod communities associated with distinct vegetation patches (?heuweltjies?) in an arid shrubland

Arid

DOI	10.1016/j.jaridenv.2023.104967
	High species turnover of arthropod communities associated with distinct vegetation patches (?heuweltjies?) in an arid shrubland
	Davids, Liaam; Pryke, James S.; Seymour, Colleen L.
通讯作者	Davids, L
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2023
卷号	213
英文摘要	Dryland ecosystems are often characterized by their vegetation patchiness. The Succulent Karoo, a semi-arid region in South Africa is characterised by distinct vegetation patches surrounded by a homogenous vegetation matrix. These patches, locally known as heuweltjies, are naturally developed earthen mounds found throughout the region that contribute significantly to landscape heterogeneity. Arthropods are key for ecological functioning in semi-arid ecosystems. However, few studies have assessed the role that heuweltjies play in maintaining arthropod diversity in the landscape. This study investigates how arthropod abundance, species richness, beta-diversity and composition respond to heuweltjies at multiple spatial scales (biotope and site). Two sampling techniques (pitfall and vacuum sampling) were used to collect epigaeic (ground) and foliage-dwelling arthropods on heuweltjies and in the surrounding matrix, at three different sites in the Succulent Karoo during drought conditions. Heuweltjies had greater epigaeic and foliage alpha-diversity and abundance than the matrix. Addi-tionally, epigaeic and foliage arthropod community composition were dissimilar at both the biotope and site scales. Beta diversity across the three sites was high and driven by species turnover. At the biotope scale, heu-weltjie and matrix plots both showed high beta-diversity. This study took place during a prolonged drought with high plant mortality and relatively few foliage arthropods, but patterns in arthropod diversity between heuweltjies and the surrounding matrix were nevertheless still apparent. These results suggest that heuweltjies promote arthropod diversity and heterogeneity in the landscape, playing a vital role as refuges, providing food and nesting resources for various arthropod species.
英文关键词	Beta-diversity Drought Habitat heterogeneity Heuweltjie Invertebrate assemblages Succulent Karoo
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000959832900001
WOS关键词	SUCCULENT KAROO ; CAPE-PROVINCE ; EARTH MOUNDS ; R PACKAGE ; DIVERSITY ; SOIL ; SCARABAEIDAE ; BIODIVERSITY ; DEGRADATION ; DIRECTIONS
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397147
推荐引用方式 GB/T 7714	Davids, Liaam,Pryke, James S.,Seymour, Colleen L.. High species turnover of arthropod communities associated with distinct vegetation patches (?heuweltjies?) in an arid shrubland[J],2023,213.
APA	Davids, Liaam,Pryke, James S.,&Seymour, Colleen L..(2023).High species turnover of arthropod communities associated with distinct vegetation patches (?heuweltjies?) in an arid shrubland.JOURNAL OF ARID ENVIRONMENTS,213.
MLA	Davids, Liaam,et al."High species turnover of arthropod communities associated with distinct vegetation patches (?heuweltjies?) in an arid shrubland".JOURNAL OF ARID ENVIRONMENTS 213(2023).