The investigation of edge effects within ragmented forest islands in Short Hills Provincial Park

It has been well documented, within the field of landscape ecology, that terrestrial fragmentation contributes to increased heterogeneity at the landscape level. It has also been observed that elevated areas of edge habitat occur within fragmented landscapes. Spatial and temporal edge effects were investigated in four areas designated as Nature Reserve Zones within Short Hills Provincial Park, near St. Catharines, Ontario. Random sampling along exposed edges was performed on trees and saplings, at 5 and 25 ill edge depths, using the point-centred quarter method. Diameter at breast height (dbh) and distance from point measurements were used to establish relative density, dominance, frequency and importance value. One-way analyses of variance were used on dbh measurements of tree species and Chi-Square contingency tables were used on size class distributions of saplings species to determine significant differences between 5 and 25 metres. Qualitative comparisons of importance values were also used to determine differences between 5 and 25 metres as well as between trees and saplings. These statistical and qualitative comparisons suggest that a significant overall spatial edge effect is currently exhibited by fragmented wooded islands within the park. The major species of the park, Acersaccharuln, may be exhibiting a temporal edge effect. The heterogeneous nature of the park may be of importance in understanding this area as a complex, ecological system. It is possible that the remaining forest tracts of the park have been affected, and continue to be affected by previous disturbances. Based on these findings, recommendations are made to the Ontario Ministry of Natural Resources concerning the management of Short Hills Provincial Park in accordance with their 1990 proposed Management Plan.

Niagara Falls Park: Notice to Treat to Sutherland Macklem, Esquire, 1885

The Niagara Parks Commission administrative headquarters are located in Oak Hall which is on the cliff above Dufferin Islands. In 1798 this land was granted by the crown to United Empire Loyalist James Skinner until 1898. A century later it was the home of the Clarks, Streets and Macklems. These families controlled the mills of Bridgewater which was a pioneer industrial village located at Dufferin Islands. Then, it was known as Clark Hill. Colonel Thomas Clark, commander of the Second Lincoln Militia in the War of 1812 is the earliest known occupant of the house. When Clark died in 1837, the house went to Thomas Clark Street who was the son of the Colonel’s partner. Mr. Street was a bachelor and his sister, widow of Dr. T.C. Macklem, managed his household. Mrs. Macklem had 2 sons. The eldest son drowned in the Niagara River at the age of 8 and the younger son, Sutherland became heir to the estate. Mr. Macklem opened Cynthia Islands and Cedar Island to the public and had roads built to reach them. Two suspension bridges connected them to the mainland and tolls were charged on the bridges. The improvements to the land cost Macklem $18,962. He called the bridges “Bridge Castor” and “Bridge Pollux”. There was also an office built at the end of Bridge Castor. Macklem also spent $454 fixing up the Burning Spring Building (the burning spring is enclosed in a barrel which collects gas and lets it out through a tube at the top). Macklem received a yearly income of $56,378.79 from tourists and visitors. In 1887 Cynthia Islands and Cedar Island were deeded to the crown and became part of Queen Victoria Park. The name Cynthia was changed to Dufferin in honour of Lord Dufferin. Sources: www.niagarafrontier.com/parks.html www.niagarafrontier.com/burningsprings.html