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Found 10 records similar to Tree Health - Thousand Islands
TINP evaluates seedling and sapling density within 5 subplots of the 20m x 20m EMAN forest plots in August each year. Plots are rotated every 5 years (6 plots/year) and are monitored according to term Ecological Monitoring and Assessment Network (EMAN) Protocols and Standards.
Several measures that characterise downed woody debris are recorded along three, 45.14 m transects associated with long-term Ecological Monitoring and Assessment Network (EMAN) forest plots. Several measures are recorded including the diameter of the DWD at point of contact, tree species, decomposition class, and several others.
In PEI National Park tree health and growth are monitored in 20 long-term permanent forest monitoring plots. These plots were established in 2006 in mature white spruce forests under the Ecological Monitoring and Assessment Network (EMAN) program. The measure reports on tree species dominance, recruitment, and growth. Field measurements include species, diameter at breast height (DBH), and tree condition.
This measure consists of 2 field measurements: Tree Crown Conditions and Stem Defects. These parameters are used to assess overall forest health in the park, as a reduction in crown cover can provide early warning signs of change in forest stand health and succession.
The presence and abundance of 11 marsh birds are assessed through visual and audio surveys twice every year (8 plots/year) throughout the park between May and July. Bird species richness and abundance of indicator species can be compared with hundreds of other Marsh Monitoring Program sites across the Great Lakes region.
The park measures forest regeneration and succession on 15 EMAN plots in deciduous and mixed forests on Beausoleil Island. The surveys report on the number, height class and survival of tree seedlings and saplings.
The long-term monitoring of trees on a permanently marked forest plot gives important information on the structure and composition of a forest, the condition, growth rates and longevity of the species of trees composing that forest, changes in species composition or population size that occur over time and the impacts of environmental change on mature trees and forest ecosystems. Such long-term monitoring is also essential for reliable future assessment and management decisions affecting forest vegetation. Field measurements are recorded once every 5 years during the summer at 10 plots (20 X 20 m2).
Monitoring of the tree landscape permits detecting changes in habitat availability, forest productivity, forest health, and other ecosystem functions. The park uses permanent sample plots to monitor tree health, growth rate, and forest succession; remote sensing is used for landscape-scale vegetation changes.
The Ontario Forest Biomonitoring Network (OFBN) monitors the health of mixed hardwood forests across southern and central Ontario. The data set includes: * Individual Tree Data: Decline Index and other measurements of visual stress symptoms of each tree within 111 plots * Decline Index: The Decline Index is a weighted average of tree stress symptoms (percent dead branches, percent slight or strong chlorosis (pale green-yellow leaves) and percent undersized leaves). Averaged for hardwood trees found within each of the 111 plots in each year. * Invasive Plant Species Presence Data * Salamander Data: numbers of individuals of salamander and other animal species in 14 plots * Tree Regeneration Data: monitors numbers of tree seedlings/saplings in 102 plots * Woody Debris Data: amount of woody debris on ground in 102 plots
Browse surveys occur yearly in July-August and are conducted by park staff. Each plot is composed of nine circular subplots (2-m radius) in a 3 x 3 grid, spaced at 15 m intervals. The number of seedlings (5 – 30 cm) and saplings (30 – 200 cm) of each tree species are counted. Seedling recruitment is correlated with herbivore abundance and provides an efficient method to assess browse pressure in forest ecosystems.