NDLI: Restoring biopedturbation in grasslands with anthropogenic focal disturbance

Content Provider	Springer Nature Link
Author	Limb, Ryan F. Engle, David M. Bidwell, Terrence G. Althoff, Donald P. Anderson, Alan B. Gipson, Philip S. Howard, Heidi R.
Copyright Year	2010
Abstract	Grassland ecosystems evolved with natural disturbance events on multiple spatial scales in which focal, fine-scale soil disturbance by animals often was imbedded within large-scale grazing disturbance. The resulting plant communities adapted to both broad-scale and fine-scale disturbance that resulted in species-rich plant communities. These natural disturbance regimes have been largely replaced by anthropogenic disturbance. While we generally understand grassland response to modern grazing practices, we know much less about plant community response to soil disturbance imbedded within non-focal grazing. Therefore, we used a tracked vehicle to focally disturb soil in a North American mesic mixed prairie that was either undisturbed prairie or prairie with a recent history of disturbance from either grazing or haying. Successional trajectory and recovery time following focal soil disturbance was similar between grazed and hayed plant communities. Species composition did not differ (P < 0.05) between grazed or hayed prairie and the respective undisturbed prairie. Plant species richness and bare ground increased (P < 0.05) following focal soil disturbance in both grazed and hayed communities, but focal soil disturbance combined with either grazing or haying did not change either plant species richness or bare ground more than (P > 0.05) focal soil disturbance alone. Also, the effect of focal soil disturbance was shortlived with recovery in two growing seasons. Our results suggest that anthropogenic focal soil disturbance is a reasonable mechanism to restore soil disturbance to the grassland ecosystem.
Starting Page	331
Ending Page	342
Page Count	12
File Format	PDF
ISSN	13850237
Journal	Plant Ecology
Volume Number	210
Issue Number	2
e-ISSN	15735052
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-03-21
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Grazing, hay harvest Resilience, resistance Soil disturbance Successional trajectory Tracked vehicles Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Plant Science

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