Survival strategies of lichens and Bryophytes in the mining region of Sudbury, Ontario
By: by Jack D. Cox
Publisher: s.n.]
Published: 1993
Place of publication: [s.l
Language: eng
Number of pages: 127
Description:   Grime's triangular ordination model was used to investigate the ecological strategies of lichens and bryophytes along a Cu-Ni pollution gradient in the region of Sudbury, Ontario.  Grime's model utilizes strategic equilibrium between stress, disturbance and competition to characterize and compare plant species.  Relative cover and frequency were used to define stress tolerance along the pollution gradient, while competition was quantified by a morphology index of thallus thickness and diameter and disturbance tolerance was measured by ability to colonize unstable sites.  The model demonstrated changes in lichen and bryophite communities along the pollution gradient, with lichen survival strategies associated with growth form, substrrate preference and family affiliation. The model was unsuccessful in predicting disturbance tolerance.
Notes: Available from Canadian Theses on microfiches

Thesis (M.Sc)--Laurentian University

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