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A HIERARCHICAL PERSPECTIVE TO WOODY PLANT ENCROACHMENT FOR CONSERVATION OF PRAIRIE-CHICKENS.
Author
Fuhlendorf, Sam
Hovick, Torre J.
Elmore, R. Dwayne
Tanner, Ashley
Engle, Dave
Davis, Craig A.
Publisher
Society for Range Management
Publication Year
2017
Body

Encroachment of Great Plains grasslands by fire-sensitive woody plants is a large-scale, regional process that fragments landscapes. In a recent REM paper (Fuhlendorf et al. 2017), we use two prairie grouse species (Tympanuchus�spp.) of conservation concern, and apply hierarchy theory to demonstrate how regional processes constrain lower level processes and reduce the success of local management. For example, fire and grazing management may be locally important to conservation, but they rarely cause irreversible fragmentation of grasslands in the Great Plains. Multiple disturbance processes cause short term alterations in vegetation conditions that can be positive or negative but from a long-term perspective it maintains large tracts of continuous rangelands by limiting woody plant encroachment. We maintain that conservation emphasis should be focused on landscape processes that contribute to landscape fragmentation such as increased dominance of trees, and that short term effects of fire and grazing on vital rates are less important to grouse population persistence.

Language
English
Resource Type
Text
Document Type
Conference Proceedings
Conference Name
SRM St. George, UT
Collection
SRM Annual Meeting Abstracts