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Beavers are a key component of the Riding Mountain National Park ecosystems. The park surveys active beaver food caches by air in 30 habitat blocks every 3 years. These surveys have been conducted since 1973.

The park employs aerial surveys to map active beaver lodges/dams in Terra Nova. A selection of sites are ground-thruthed on foot or by canoe.

Beavers are important ecosystem architects, creating wetland habitats, thickets and meadows by damming streams and cutting down woody vegetation along stream banks. This measure consist of an aerial survey of the number of active beaver colonies in lowland forests of Gros Morne National Park. It is conducted every fifth year in the Fall.

This dataset focuses on monitoring beaver colonies in Forillon National Park. Beavers have a major influence on aquatic ecosystems in the park. Monitoring fluctuations in this population can help us better understand variations in the physicochemical characteristics of watercourses and possibly in other aquatic populations in the park. Beaver colony data are collected primarily as part of a park-wide aerial survey by helicopter.

Forest birds in Elk Island National Park are surveyed annually along 24 established routes, with 4 stations along each route. The stations are spaced 400-600 meters apart. Sampling occurs between late May and early July. Forest bird surveys have occurred in the Park since 1985, but current methods, using audio recording devices, have been used only since 2009.

The beaver (Castor canadensis) is a large, primarily nocturnal semi-aquatic rodent used as an indicator of the conditions in freshwater ecosystems due to its role as a keystone species and an ecosystem engineer. The potential for beaver colonization within Kouchibouguac National Park is considerable due to the quantity of first and second order streams within its borders. In addition, the most important and preferred food source available to beavers in the Park is the trembling aspen (Populous tremuloides); though this tree species colonizes disturbed areas and is usually replaced by conifers or shade-tolerant hardwoods in long-term succession. Hence, the population dynamics of beavers can reflect large-scale changes in forest ecosystems.

Elk abundance and population composition are assessed annually during an aerial survey conducted between mid-January and mid-February. The elk population composition is measured annually in a classified aerial count held in late Fall.

Beavers were formerly extirpated from the Bruce Peninsula, but have re-colonized the area after a two century absence, making significant changes to the park landscape. Bruce Peninsula National Park monitors active lodges by counting food caches during helicopter surveys in the fall, just before the freeze-up.

All available bathymetry and related information for Beaver Lake were collected and hard copy maps digitized where necessary. The data were validated against more recent data (Shuttle Radar Topography Mission 'SRTM' imagery and Indian Remote Sensing 'IRS' imagery) and corrected where necessary. The published data set contains the lake bathymetry formatted as an Arc ascii grid. Bathymetric contours and the boundary polygon are available as shapefiles.

All available bathymetry and related information for Beaver Lake were collected and hard copy maps digitized where necessary. The data were validated against more recent data (Shuttle Radar Topography Mission 'SRTM' imagery and Indian Remote Sensing 'IRS' imagery) and corrected where necessary. The published data set contains the lake bathymetry formatted as an Arc ascii grid. Bathymetric contours and the boundary polygon are available as shapefiles.