| |
| Web URL(s): | http://www.nrcresearchpress.com/doi/pdf/10.1139/b02-032
Last checked: 09/30/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Vujnovic, K.;
Wein, R. W.;
Dale, M. R. T. |
|---|
| Author Affiliation: | Vujnovic: Corresponding Author, Department of Biological Sciences, University of Alberta, Edmonton, Alberta; Wein and Dale: Department of Biological Sciences, University of Alberta, Edmonton, Alberta |
|---|
| Title: | Predicting plant species diversity in response to disturbance magnitude in grassland remnants of central Alberta |
|---|
| Section: | Ecology
Other records with the "Ecology" Section
|
|---|
| Source: | Canadian Journal of Botany. Vol. 80, No. 5, May 2002, p. 504-511. |
|---|
| Publishing Information: | Vancouver, British Columbia: The National Research Council of Canada. |
|---|
| # of Pages: | 8 |
|---|
| Related Web URL: | http://www.nrcresearchpress.com/doi/abs/10.1139/b02-032
Last checked: 09/30/2015
Notes: English abstract only |
|---|
| Keywords: | TIC Keywords: Biodiversity; Disturbance theory; Diversity; Ecosystems
|
|---|
| Abstract/Contents: | "The Intermediate Disturbance Hypothesis states that the greatest species diversity occurs at intermediate levels of disturbance because species coexistence is maintained at a nonequilibrium state and no strong competitor can dominate completely. On the other hand, diversity of exotic species is expected to increase with the disturbance magnitude. These patterns were tested for in this study. The cover of all vascular plants, mosses, and lichens in 1 X 1 m plots across a range of disturbance levels was sampled in 11 remnannt grasslands within the Aspen Parkland Ecoregion of central Alberta, western Canada. The Intermediate Disturbance Hypothesis was supported for small-scale within-patch diversity for total species richness and Simpson's diversity index. Lower species diversity was found in undisturbed and lightly grazed as well as in highly disturbed plots. Intermediate levels of disturbance had reduced dominance of Festuca hallii (Vasey) Piper and increased abundance of most other species; this gave the highest species diversity. The species richness and diversity of exotic plant species showed a significant positive relationship with the magnitude of the disturbance. Understanding relationships between disturbance and plant species diversity, especially exotic plants, can influence management decisions on what disturbance regime is conducive to maintaining natural plant communities." |
|---|
| Language: | English |
|---|
| References: | 50 |
|---|
| Note: | Abstract also appears in French
Map
Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Vujnovic, K., R. W. Wein, and M. R. T. Dale. 2002. Predicting plant species diversity in response to disturbance magnitude in grassland remnants of central Alberta. Can. J. Bot. 80(5):p. 504-511. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=80978 |
| If there are problems with this record, send us feedback about record 80978. |
| Choices for finding the above item: |
|---|
| Web URL(s):
http://www.nrcresearchpress.com/doi/pdf/10.1139/b02-032
Last checked: 09/30/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: QK 1 .C3 |
| Find from within TIC:
Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
