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| DOI: | 10.1139/cjb-2020-0083 |
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| Web URL(s): | https://cdnsciencepub.com/doi/full/10.1139/cjb-2020-0083
Last checked: 02/18/2021
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Bradfield, Gary E.;
Cumming, W. F. Preston;
Newman, Reg F.;
Krzic, Maja |
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| Author Affiliation: | Bradfield and Cumming: Department of Botany, The University of British Columbia, Vancouver, BC, Canada; Newman: British Columbia Ministry of Forests, Lands, and Natural Resource Operations, Kamloops, BC, Canada; Krzic: Faculty of Land and Food Systems and Faculty of Forestry, The University of British Columbia, Vancouver, BC, Canada |
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| Title: | Grazing exclosures reveal divergent patterns of change in bunchgrass grasslands of Western Canada |
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| Source: | Botany [Canada]. Vol. 99, No. 1, January 2021, p. 9-22. |
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| Publishing Information: | Vancouver, British Columbia, Canada: The National Research Council of Canada |
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| # of Pages: | 14 |
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| Keywords: | Author-Supplied Keywords: Grassland plant communities; Temporal change vegetation; Rough fescue; Bluebunch wheatgrass; Kentucky bluegrass; Non-metric multidimensional scaling
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| Abstract/Contents: | "Thirty-six long-term (1483 years) cattle grazing exclosures and adjacent grazed pastures spanning a climatic gradient from coolerwetter to warmerdrier growing seasons in south-central British Columbia were compared for temporal vegetation change. Trajectories of temporal vegetation change from non-metric multidimensional scaling were mostly scattered for the grazed areas, but more directed toward the dominant grasses, primarily rough fescue (Festuca campestris) or Kentucky bluegrass (Poa pratensis), for the exclosures. Plant community differences, detected only after 10 years of grazing exclusion, were primarily due to structural shifts in overall species cover related to growth increases of the dominant grasses inside exclosures. Species richness remained unchanged between the first and last sampling dates in both grazed areas and exclosures, with both treatments showing moderate degrees (15%30%) of turnover in species composition. Shannon diversity declined in both treatments as a result of the structural changes in species cover. The results highlight the value of repeated monitoring of long-term exclosures for assessment of grassland resiliency to grazing. Further studies of the interaction of grazing and climate are needed for a more complete understanding of the ongoing vegetation change." |
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| Language: | English |
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| References: | 47 |
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| Note: | Map
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bradfield, G. E., W. F. P. Cumming, R. F. Newman, and M. Krzic. 2021. Grazing exclosures reveal divergent patterns of change in bunchgrass grasslands of Western Canada. Can. J. Bot. 99(1):p. 9-22. |
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| DOI: 10.1139/cjb-2020-0083 |
| Web URL(s):
https://cdnsciencepub.com/doi/full/10.1139/cjb-2020-0083
Last checked: 02/18/2021
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2201022a |
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