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Mortality resulting from two field experiments regarding freezing potential for embryos of Anaxyrus canorus at various breeding sites near Tioga Pass, California, USA, in 1999 and 2000 and for one laboratory experiment in 2000 at the Sierra Nevada Aquatic Research Laboratory in Mammoth Lakes, California, USA

Dates

Publication Date
Start Date
1999-05-01
End Date
1999-06-30

Citation

Sadinski, W., 2020, Mortality resulting from two field experiments regarding freezing potential for embryos of Anaxyrus canorus at various breeding sites near Tioga Pass, California, USA, in 1999 and 2000 and for one laboratory experiment in 2000 at the Sierra Nevada Aquatic Research Laboratory in Mammoth Lakes, California, USA: U. S. Geological Survey data release, https://doi.org/10.5066/P9BVZDOP.

Summary

We produced this data set as part of a larger, integrated study to assess the statuses of populations of Anaxyrus canorus and the causes of observed effects on fitness at field sites, primarily in Yosemite National Park near Tioga Pass, from 1996 to 2001. We conducted a field experiment in 1999 to test for effects of enclosing embryos of A. canorus and moving them to slightly deeper water, thereby reducing the potential for exposure to ice and freezing temperatures, on hatching success at five breeding sites. We split freshly laid egg masses approximately into halves. We left one indiscriminately chosen half of each mass where it was deposited originally (replicates of which were scattered among the shallow waters) and placed the other [...]

Contacts

Originator :
Walter J Sadinski
Point of Contact :
Walter J Sadinski
Metadata Contact :
Walter J Sadinski
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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Field_lab_experiments_99_00.csv 1.83 KB

Purpose

We used these data to help us evaluate the effects of potential exposure to freezing, disease, and predatory flatworms on embryos of A. canorus in our study area. Other researchers could use them to address various ecological questions related to fitness, reproduction success, recruitment, and natural history, among other topics for A. canorus in our study area or elsewhere.

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Communities

  • Upper Midwest Environmental Sciences Center (UMESC)

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9BVZDOP

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