Arid
DOI10.1111/oik.05768
Environmental gradients determine the potential for ecosystem engineering effects
Grinath, Joshua B.1,2; Larios, Loralee4; Prugh, Laura R.5; Brashares, Justin S.6; Suding, Katharine N.1,3
通讯作者Grinath, Joshua B.
来源期刊OIKOS
ISSN0030-1299
EISSN1600-0706
出版年2019
卷号128期号:7页码:994-1004
英文摘要

Understanding processes that determine biodiversity is a fundamental challenge in ecology. At the landscape scale, physical alteration of ecosystems by organisms, called ecosystem engineering, enhances biodiversity worldwide by increasing heterogeneity in resource conditions and enhancing species coexistence across engineered and non-engineered habitats. Engineering-diversity relationships can vary along environmental gradients due to changes in the amount of physical structuring created by ecosystem engineering, but it is unclear how this variation is influenced by the responsiveness of non-structural abiotic properties to engineering. Here we show that environmental gradients determine the capacity for engineering to alter resource availability and species diversity, independent of the magnitude of structural change produced by engineering. We created an experimental rainfall gradient in an arid grassland where rodents restructure soils by constructing large, long-lasting burrows. We found that greater rainfall increased water availability and productivity in both burrow and inter-burrow habitats, causing a decline in local (alpha) plant diversity within both of these habitats. However, increased rainfall also resulted in greater differences in soil resources between burrow and inter-burrow habitats, which increased species turnover (beta diversity) across habitats and stabilized landscape-level (gamma) diversity. These responses occurred regardless of rodent presence and without changes in the extent of physical alteration of soils by rodents. Our results suggest that environmental gradients can influence the effects of ecosystem engineering in maintaining biodiversity via resource heterogeneity and species turnover. In an era of rapid environmental change, accounting for this interaction may be critical to conservation and management.


英文关键词arid grassland biodiversity burrowing rodents community composition disturbance endangered species rainfall gradient resource availability soil properties
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000474370800008
WOS关键词POSITIVE SPECIES INTERACTIONS ; PLANT-PLANT INTERACTIONS ; KANGAROO RAT ; DIPODOMYS-INGENS ; ABIOTIC STRESS ; TOP-DOWN ; FACILITATION ; HYPOTHESIS ; RICHNESS ; NITROGEN
WOS类目Ecology
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/2XILL650/217816
作者单位1.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA;
2.Middle Tennessee State Univ, Dept Biol, POB 60, Murfreesboro, TN 37132 USA;
3.Univ Colorado, Ecol & Evolutionary Biol, Boulder, CO 80309 USA;
4.Univ Calif Riverside, Dept Bot & Plant Sci, Riverside, CA 92521 USA;
5.Univ Washington, Sch Environm & Forest Sci, Seattle, WA 98195 USA;
6.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA
推荐引用方式
GB/T 7714
Grinath, Joshua B.,Larios, Loralee,Prugh, Laura R.,et al. Environmental gradients determine the potential for ecosystem engineering effects[J],2019,128(7):994-1004.
APA Grinath, Joshua B.,Larios, Loralee,Prugh, Laura R.,Brashares, Justin S.,&Suding, Katharine N..(2019).Environmental gradients determine the potential for ecosystem engineering effects.OIKOS,128(7),994-1004.
MLA Grinath, Joshua B.,et al."Environmental gradients determine the potential for ecosystem engineering effects".OIKOS 128.7(2019):994-1004.
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