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Found 10 records similar to Seabirds - Forillon
This program assesses demographic parameters and breeding abundance of 5 species of ground (burrow) nesting seabirds: Pigeon Guillemot (Cepphus columba), Rhinoceros Auklet (Cerorhinca monocerata), Glaucous-winged Gull (Larus glaucescens), Leach's Storm-Petrel (Oceanodroma leucorhoa) and Fork-tailed Storm-Petrel (Oceanodroma furcata) at the Seabird Rocks Colony through population counts and capture-mark-recapture techniques. Counts of individuals at the colony are done 3-4 times throughout a breeding season (May-July) to estimate the size of the breeding populations. A banding (capture-mark-recapture) program to estimate annual survivorship of the two storm-petrel species is done via mist-net arrays on two consecutive nights in early May and/or mid-to-late July. This project seeks to track the present status of the ground and burrrow-nesting seabirds on Seabird Rocks and any recovery that may occur due to future habitat restoration and/or predator-control measures.
This program captures the relative abundance and distribution of five common seabirds occurring in the waters of Pacific Rim National Park Reserve including the Marbled Murrelet (Brachyramphus marmoratus), Common Murre (Uria aalge), Rhinoceros Auklet (Cerorhinca monocerata), Pigeon Guillemot (Cepphus columba), and Pelagic Cormorant (Phalacrocorax pelagicus). The at-sea surveys are done approximately every two weeks from May to September and use standardized fixed-route strip transects to estimate annual variations in the population of seabirds using the near-shore waters of the park. Seabirds are prominent members of the inshore marine ecosystems and are considered to be sentinels of both local and broad environmental change. The demographic stability of seabird populations may serve as an integrated measure of health of the shoreline ecosystem.
Gwaii Haanas has partnered with ECCC to monitor a set of permanent plots mapping colony structure and burrow occupancy rate by excavating samples of burrows of Ancient Murrelet and Cassin’s Auklet. The data are used to determine if the breeding population areas are changing at specific key nesting colonies and if the change signifies an increasing or decreasing population trend. An estimated 1.5 million seabirds breed colonially on the 200+ islands, islets and rocks of Haida Gwaii, including globally and nationally significant proportions of 5 seabird species. A significant threat to breeding seabirds is predation by non-native mammals, notably raccoons and rats.
Herring gull (Larus arentatus, HERG), great blue heron (Ardea Herodias GBHE), double-crested cormorant (Phalacrocorax auritus, DCCO) and ring-billed gull (Larus delawarensis, RBGU) have been monitored in Pukaskwa National Park since 1977 as part of the colonial waterbird monitoring program. A complete count of active nests on islands found along the ~120km of coast of Pukaskwa is conducted based on the Canadian Wildlife Service (CWS) protocol. The nest count is carried out during the peak of breeding over a period of 2-3 weeks. From 1977 – 1981, surveys were conducted annually and used an island numbering system (Old Colony Number in datasheet).
This dataset covers the census of pinnipeds (harbour and grey seals) that frequent the waters of Forillon National Park. Grey and harbour seals are two top predators in the food chain of the park's coastal ecosystems; hence the importance of monitoring these populations. Surveys are conducted by boat along the coasts of Forillon National Park and on the periphery in calm weather and at low tide when seals are present in large numbers on resting and calving grounds. A first dataset covers inventories from 2007 to 2015.
This dataset contains temperature data taken from 11 streams or rivers in Forillon National Park since 2008. Temperature data are collected hourly by a HOBO probe installed on the watercourse’s bottom in June and removed in September or October. For each watercourse studied, the temperature probe is installed at the benthic invertebrate community sampling site (CABIN) close to the site at which the electrofishing is carried out. Temperature data are particularly useful for assessing the quality of brook trout aquatic ecosystems in Forillon National Park.
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.
This dataset covers the monitoring of changes in coastal dynamics in Forillon National Park. This measure consists of three field measurements: the rate and extent of shoreline displacement, monitored annually using benchmarks; the rate of change in the area of the various coastal types, monitored every 10 years using georeferenced aerial photographs; and beach width, monitored annually.
Given that sea-level rise will inevitably affect coastal dynamics at Forillon, particularly with respect to coastal erosion, the monitoring of this measure is necessary in light of concerns about the park’s ecosystem. In certain low-lying areas of the park, this phenomenon could even result in the loss or alteration of important habitats, such as the Penouille or Cap-des-Rosiers marsh.
The atlas provides maps and datasets representing seabirds at-sea densities in eastern Canada. Data were collected using ships of opportunity surveys and therefore spatial and seasonal coverage varies considerably. Densities are computed using distance sampling to adjust for variation in detection rates among observers and survey conditions. Depending on conditions, seabirds can be difficult to identify at the species level.
This dataset covers the status of carnivores. It is known that some carnivores, such as the American marten (Martes americana), fisher (Pekania pennanti) and Canada lynx (Lynx canadensis), are affected by forest habitat fragmentation and human presence. In addition, the American marten and fisher are often considered good indicators of forest ecosystem integrity. The Canada lynx is one of the biodiversity targets of the Northern Appalachian/Acadian conservation plan and the Forillon ecological corridor conservation plan.