Natural mortality of tadpoles in a population of Rana aurora

Author(s)
Calef, George Waller
Year
Article Title
Natural mortality of tadpoles in a population of Rana aurora
Volume
54
Issue
4
Pages
741-758
Start Page Number
741
Final Page
758
Review

Datapoints

Displaying 1 - 7 of 7 datapoints.
Species: Northern Red-legged Frog (Rana aurora) formerly Rana aurora ssp. aurora
Exposure Endpoint Type Endpoint Description Endpoint Value Sample Size Units Life Cycle Stage Specific Location Countries Type
Time of Mating/ Laying time of first observance of egg masses Feb. - Apr. observations over 3 yrs Adult Marion Lake, southern British Columbia (elev., 300m) CANADA Exposure Factor Datasets
Time of Hatching or Parturition May observations over 3 yrs Embryo Marion Lake, southern British Columbia (elev., 300m) CANADA Exposure Factor Datasets
Population Density maximum reported density 500 Not Reported #/m2 Tadpole Marion Lake, southern British Columbia (elev., 300m) CANADA Exposure Factor Datasets
Time of Fledging or Metamorphosis July - Oct. Not Reported Tadpole Marion Lake, southern British Columbia (elev., 300m) CANADA Exposure Factor Datasets
Clutch or Litter Size 531 35 egg masses #/egg mass Adult Marion Lake, southern British Columbia (elev., 300m) CANADA Exposure Factor Datasets
Survival/ Mortality survival of larval population until metamorphosis 5 Not Reported % Tadpole Marion Lake, southern British Columbia (elev., 300m) CANADA Exposure Factor Datasets
Body Weight - Mean regression equation relating body weight (W; mg, dry wt.) to body length (L; mm) log W = -4.60 + 3.085(log L) Not Reported mg Tadpole Marion Lake, southern British Columbia (elev., 300m) CANADA Exposure Factor Datasets

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