干旱区生态环境知识资源中心(Arid): Extraordinary concentrations of local endemism associated with arid-land springs

Arid

DOI	10.3389/fenvs.2023.1143378
	Extraordinary concentrations of local endemism associated with arid-land springs
	Fensham, Roderick J. J.; Ponder, Winston F. F.; Souza, Valeria; Stevens, Lawrence E. E.
通讯作者	Fensham, RJ
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2023
卷号	11
英文摘要	Introduction: While the biodiversity value of springs is recognised, it has not been systematically compiled. The aim of the current study is to highlight the extraordinary endemism associated with the isolated habitat of arid-land springs at three locations in two continents.Methods: The habitat endemism of the eukaryote species associated with the aquatic and terrestrial habitats at Ash Meadows in the USA, Byarri in Australia and Cuatro Cienegas in Mexico was assembled based on their geographic distribution.Results: The currently-known aquatic and semi-aquatic endemic species number 27 at Ash Meadows, 31 at Byarri and 34 at Cuatro Cienegas. Terrestrial endemic species are represented by two species at Ash Meadows, five at Byarri and 26 at Cuatro Cienegas. The terrestrial endemics are associated with the scalded areas surrounding the springs impregnated with soda and gypsum. The persistence of the endemics is astonishing given that the wetlands represent tiny islands of habitat (216 small wetlands over 40 km(2) in the case of Byarri).Discussion: A key factor for the persistence and radiation of endemic species is the stability and permanence of the wetlands over evolutionary time-scales. Genetic evidence indicates the presence of both paleo-endemics, species that persisted in spring wetlands as relics of previous mesic climates; and neo-endemics that have dispersed from more mesic environments and subsequently radiated in the spring wetlands as distinct forms. The former evolved from their relatives greater than 106 ya and the latter less than 106 ya. The concentration of endemic species in and around arid-land springs is among the highest concentrations of endemic organisms specialised to a particular habitat and substantiates the paramount conservation significance of desert springs.
英文关键词	endemism neo-endemic paleo-endemic springs wetlands
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001019690000001
WOS关键词	GREAT ARTESIAN BASIN ; RIVER DRAINAGE ; DEVILS HOLE ; DESERT ; CONSERVATION ; GROUNDWATER ; AUSTRALIA ; NEVADA ; SNAILS ; PHYLOGEOGRAPHY
WOS类目	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/2XILL650/396527
推荐引用方式 GB/T 7714	Fensham, Roderick J. J.,Ponder, Winston F. F.,Souza, Valeria,et al. Extraordinary concentrations of local endemism associated with arid-land springs[J],2023,11.
APA	Fensham, Roderick J. J.,Ponder, Winston F. F.,Souza, Valeria,&Stevens, Lawrence E. E..(2023).Extraordinary concentrations of local endemism associated with arid-land springs.FRONTIERS IN ENVIRONMENTAL SCIENCE,11.
MLA	Fensham, Roderick J. J.,et al."Extraordinary concentrations of local endemism associated with arid-land springs".FRONTIERS IN ENVIRONMENTAL SCIENCE 11(2023).