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Found 10 records similar to Freshwater Amphibian Occupancy - Yoho
Kootenay National Park samples 28 randomly selected potential amphibian breeding sites (out of possible 66) to determine presence or absence of amphibian species. Each of the 28 sites is visited 3 times every 2 years and all detected species are recorded.
This measure tracks changes in presence and absence of three amphibian species at 43 potential breeding sites. Each site is visited twice (where possible), to estimate and account for detection probability the Western Toad (Bufo boreas), Columbia Spotted Frog (Rana luteiventris), and Long-toed salamander (Ambystoma macrodactylum). Mount Revelstoke National Park will monitor these amphibian species using this protocol once every 3 years.
This measure tracks changes in presence and absence of three amphibian species at 12 potential breeding sites. Each site is visited twice (where possible), to estimate and account for detection probability the Western Toad (Bufo boreas), Columbia Spotted Frog (Rana luteiventris), and Long-toed salamander (Ambystoma macrodactylum). Mount Revelstoke National Park will monitor these amphibian species using this protocol once every 3 years.
Amphibians are vulnerable to an array of
environmental changes because of their
permeable skin, a complex life history, and a dependence on moist terrestrial or wetland habitats. These attributes make them excellent indicators of the health of aquatic ecosystems. Amphibians can indicate problems of air and water pollution, drought, habitat loss and
fragmentation, the introduction of non-native species such as sport fish and bullfrogs, and the emergence and spread of infectious disease. Amphibian occupancy is determined using auditory and visual encounters surveys.
Amphibians around the world are in decline and this has led to many international initiatives to monitor and catalog amphibian biodiversity.
The western toad (Bufo boreas) found in Jasper National Park is a species of special concern protected under the Federal Species at Risk Act (SARA). Jasper National Park conducts auditory and visual amphibian surveys to estimate species occurrence. Occupancy modelling of amphibians in the Park, using presence/absence data, provides a useful and flexible framework for population trend analyses and helps inform management.
We surveyed the presence of four native amphibian species in wetlands throughout the eastern section of Banff National Park. This dataset represents detection or non-detection for each of the four species. We performed auditory and visual surveys of 60 pre-determined breeding sites . We surveyed each site two times during a sampling period between mid-April and the end of May.
The Elk Island National Park annually monitors the change in amphibian occupancy by using call counts, including data collected by citizen scientists.
The health of individual amphibians, amphibian populations, and their wetland habitats are monitored in the oil sands region and at reference locations. Contaminants assessments are done at all sites. Amphibians developing near oil sands activities may be exposed to concentrations of oil sands-related contaminants, through air emissions as well as water contamination. The focus of field investigations is to evaluate the health of wild amphibian populations at varying distances from oil sands operations.
Motion-detection cameras are a cost-effective and non-invasive tool used in Yoho National Park for sampling mammal populations and estimating species occurrence. Occupancy modelling, which uses detection/non-detection data from cameras, provides a useful and flexible framework for population trend analyses. Data are collected throughout the year across Yoho National Park to determine change in the distribution of key animal populations as well as supporting demographic predictions to better inform management.
Water chemistry and 26 different metals were measured at 21 wetland sites where studies of amphibian health are being monitored. Water chemistry measurements (pH, conductivity, total dissolved solids, etc.) assess water quality, characterize the wetlands studied and allow for comparisons among the different types of wetlands monitored. The data show low concentrations of metals, with many metals undetectable.