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The park is developing a protocol to monitor Northern Map Turtles as they congregate to bask along rock outcrops and shorelines on Georgian Bay. The measure will be completed annually through field observations of suitable basking sites. Turtles are long-living slowly-reproducing reptiles and play an important role of scavengers and predators in freshwater ecosystems. By monitoring the park will be able to track changes over time, identify potential threats and thereby achieving conservation goals.

The coast of South-Eastern Georgian Bay has numerous bays and inlets. This area is an important resource for drinking water, recreation and fish habitat. While offshore water quality of Georgian Bay is not impaired, nearshore embayments and inlets, in some instances, have been reported to experience water quality degradation. Concerns include excess nutrients, increased frequency of cyanobacteria blooms and hypoxia.

This measure tracks changes of the lake water level in the coastal ecosystem of GBINP. This is significant in driving ecological processes as well as acting as a stressor in the the park’s costal wetland ecosystem - as it is hydrologically connected to the lake water body, both at the surface and below.

Georgian Bay Islands National Park uses point counts to monitor forest birds on Beausoleil Island; this measure focuses on the abundance of five common songbird species and overall diversity.

Stiff Yellow Flax (Linum medium var. medium) is considered as a representative shoreline species, its occurrence and presence are affected by water level fluctuations. The park surveys this species` area of occurrence and stem density at selected patches.

Water quality monitoring data collected in priority tributaries to provide nutrient concentration data to estimate nutrient loads to the waters of the Great Lakes. Data is collected to advance the science to understand and address the complex problem of recurrent toxic and nuisance algae in the Great Lakes. The majority of the data is focused on Lake Erie, the smallest, shallowest of the Great Lakes, and most susceptible to nearshore water quality issues. Water quality monitoring is conducted to establish current nutrient loadings from selected Canadian tributaries; to enhance the knowledge of the factors that affect tributary and nearshore water quality, ecosystem health, and algae growth; to establish binational lake ecosystem objectives, phosphorus objectives, and phosphorous load reduction targets, and to support the development of a binational nearshore assessment and management framework.

The Canadian Environmental Sustainability Indicators (CESI) program provides data and information to track Canada's performance on key environmental sustainability issues. The Reducing phosphorus loads to Lake Simcoe and south-eastern Georgian Bay indicator reports the contribution projects funded by the Lake Simcoe Clean-Up Fund (April 2007 to March 2012) and Lake Simcoe / South-eastern Georgian Bay Clean-Up Fund (April 2012 to March 2017) are making toward reducing the amount of phosphorus reaching the water bodies from their watersheds. Changing how land is managed in the watershed helps to reduce the amount of phosphorus from rural and urban sources reaching Lake Simcoe and south-eastern Georgian Bay and to restore the lakes' health. This indicator is used to provide information about the state of the Lake Simcoe and south-eastern Georgian Bay basin and Canadian environment.

Water quality monitoring data collected in priority tributaries to provide nutrient concentration data to estimate nutrient loads to the waters of the Great Lakes. Data is collected to advance the science to understand and address the complex problem of recurrent toxic and nuisance algae in the Great Lakes. The majority of the data is focused on Lake Erie, the smallest, shallowest of the Great Lakes, and most susceptible to nearshore water quality issues. Water quality monitoring is conducted to establish current nutrient loadings from selected Canadian tributaries; to enhance the knowledge of the factors that affect tributary and nearshore water quality, ecosystem health, and algae growth; to establish binational lake ecosystem objectives, phosphorus objectives, and phosphorous load reduction targets, and to support the development of a binational nearshore assessment and management framework.

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.

Abundance and diversity of frogs and toads is a good indicator for assessing ecological integrity. The park visually counts adult frogs and toads in coastal wetlands after the breeding season. This method does not permit assessment of early breeding species and may overestimate frog abundance because these surveys coincide with mass emergence of newly developed frogs, which are subjected to very high mortality rates.