干旱区生态环境知识资源中心(Arid): Slow loss of a foundation species in agricultural landscapes: Effects of nutrients, land clearing, and other factors

Arid

DOI	10.1016/j.agee.2021.107681
	Slow loss of a foundation species in agricultural landscapes: Effects of nutrients, land clearing, and other factors
	Bell, Kristian; Driscoll, Don A.; Doherty, Tim S.
通讯作者	Bell, K (corresponding author), Deakin Univ, Ctr Integrat Ecol, Sch Life & Environm Sci, Geelong, Vic, Australia.
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN	0167-8809
EISSN	1873-2305
出版年	2022
卷号	323
英文摘要	Foundation species strongly influence other organisms and declines in foundation species due to disturbance can have impacts that extend throughout communities. Spinifex grasses (Triodia spp.) are foundation species of arid Australia that provide resources to many birds, mammals, reptiles and invertebrates. We tested drivers of Triodia scariosa presence and abundance at local and landscape scales using a Bayesian structural equation model and species distribution modelling, based on the mapped distribution of 11,887 spinifex plants in remnant vegetation across a similar to 12,000 km(2) agricultural region. At the local scale (<1 km), there was a negative effect of soil phosphorus on spinifex abundance, particularly when the prevalence of other grasses was high. These results suggest that the combination of other grasses and nutrient enrichment promote hostile conditions for spinifex in small agricultural remnants, possibly through altered competitive interactions. However, at the landscape scale (100 + km), there was a positive effect of phosphorus on spinifex abundance, reinforcing the importance of multi-scale studies. Spinifex presence at the landscape scale was best determined by proximity to nature reserves. Sites closest to reserves were cleared later than more distant sites, which suggests a trajectory of decline consistent with an extinction debt. Our results correspond with a global phenomenon of delayed biodiversity loss and identify key threats to foundation species in human-dominated landscapes. Given that our proposed mechanisms of loss, nutrient enrichment and possible competition are widespread in agricultural regions throughout the world, understanding how to mitigate threats to foundation species should be a priority.
英文关键词	Agro-ecosystem Competition Delayed biodiversity loss Disturbance Extinction debt Foundation species Habitat fragmentation and loss Nutrient enrichment Spinifex
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000706994700009
WOS关键词	HABITAT FRAGMENTATION ; CLIMATE-CHANGE ; LONG-TERM ; SOIL ; BIODIVERSITY ; CONSEQUENCES ; DYNAMICS ; SCALE ; WOODLANDS ; MODELS
WOS类目	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362393
作者单位	[Bell, Kristian; Driscoll, Don A.; Doherty, Tim S.] Deakin Univ, Ctr Integrat Ecol, Sch Life & Environm Sci, Geelong, Vic, Australia; [Doherty, Tim S.] Univ Sydney, Sch Life & Environm Sci, Sydney, NSW, Australia
推荐引用方式 GB/T 7714	Bell, Kristian,Driscoll, Don A.,Doherty, Tim S.. Slow loss of a foundation species in agricultural landscapes: Effects of nutrients, land clearing, and other factors[J],2022,323.
APA	Bell, Kristian,Driscoll, Don A.,&Doherty, Tim S..(2022).Slow loss of a foundation species in agricultural landscapes: Effects of nutrients, land clearing, and other factors.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,323.
MLA	Bell, Kristian,et al."Slow loss of a foundation species in agricultural landscapes: Effects of nutrients, land clearing, and other factors".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 323(2022).