干旱区生态环境知识资源中心(Arid): Digging up the dirt: Quantifying the effects on soil of a translocated ecosystem engineer

Arid

DOI	10.1111/aec.12833
	Digging up the dirt: Quantifying the effects on soil of a translocated ecosystem engineer
	Halstead, Lauren M.1; Sutherland, Duncan R.2; Valentine, Leonie E.3; Rendall, Anthony R.1; Coetsee, Amy L.4; Ritchie, Euan G.1
通讯作者	Halstead, Lauren M.
来源期刊	AUSTRAL ECOLOGY
ISSN	1442-9985
EISSN	1442-9993
出版年	2020
卷号	45 期号:1 页码:97-108
英文摘要	Digging mammals are often considered ecosystem engineers, as they affect important properties of soils and in turn nutrient exchange, vegetation dynamics and habitat quality. Returning such species, and their functions, to areas from where they have been extirpated could help restore degraded landscapes and is increasingly being trialled as a conservation tool. Studies examining the effects of digging mammals have largely been from arid and semi-arid environments, with little known about their impacts and importance in mesic systems. To address this knowledge gap, we investigated the ecological role of a recently introduced population of eastern barred bandicoots (Perameles gunnii) on Churchill Island, Victoria, south-eastern Australia, from which all digging mammals have been lost. We quantified the annual rate of soil turnover by estimating the number of foraging pits bandicoots created in 100-m(2) plots over a 24-h period. Foraging pit counts could not be completed in each season, and the overall turnover estimate assumes that autumn/winter months represent turnover rates for the entire year; however, this is likely to fluctuate between seasons. Ten fresh and ten old pits were compared to paired undug control sites to quantify the effect soil disturbance had on soil hydrophobicity, moisture content and soil strength. Plots contained between zero and 64 new foraging pits each day. We estimated that an individual eastern barred bandicoot digs similar to 487 (95% CI = 416-526) small foraging pits per night, displacing similar to 13.15 kg (95% CI = 11.2-14.2 kg) of soil, equating to similar to 400 kg (95% CI = 341-431 kg) of soil in a winter month. Foraging pits were associated with decreased soil compaction and increased soil moisture along the foraging pit profile. Eastern barred bandicoots likely play an important role in ecosystems through their effects on soil, which adds to an increasing body of knowledge suggesting restoration of ecosystems, via the return of ecosystem engineers and their functions, holds much promise for conserving biodiversity and ecological function.
英文关键词	conservation translocation digging mammal eastern barred bandicoot ecosystem restoration foraging ecology
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000495116800001
WOS关键词	BANDICOOT PERAMELES-GUNNII ; BILBY MACROTIS-LAGOTIS ; WATER INFILTRATION ; MAMMALS ; HABITAT ; BIOTURBATION ; CONSERVATION ; BIODIVERSITY ; RESTORATION ; DISTURBANCE
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-11-08
来源机构	University of Western Australia
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310783
作者单位	1.Deakin Univ, Sch Life & Environm Sci, Ctr Integrat Ecol, Burwood Campus, Geelong, Vic 3125, Australia; 2.Phillip Isl Nat Parks, Res Dept, Cowes, Vic, Australia; 3.Univ Western Australia, Sch Biol Sci, Crawley, WA, Australia; 4.Zoos Victoria, Wildlife Conservat & Sci, Parkville, Vic, Australia
推荐引用方式 GB/T 7714	Halstead, Lauren M.,Sutherland, Duncan R.,Valentine, Leonie E.,et al. Digging up the dirt: Quantifying the effects on soil of a translocated ecosystem engineer[J]. University of Western Australia,2020,45(1):97-108.
APA	Halstead, Lauren M.,Sutherland, Duncan R.,Valentine, Leonie E.,Rendall, Anthony R.,Coetsee, Amy L.,&Ritchie, Euan G..(2020).Digging up the dirt: Quantifying the effects on soil of a translocated ecosystem engineer.AUSTRAL ECOLOGY,45(1),97-108.
MLA	Halstead, Lauren M.,et al."Digging up the dirt: Quantifying the effects on soil of a translocated ecosystem engineer".AUSTRAL ECOLOGY 45.1(2020):97-108.