Data from: Mortality and morphology in egg masses of unisexual and Jefferson Salamanders

Noah Charney, Jacob Kubel, Craig Woodard, Blanca Carbajal-González, Samantha Avis, Julia Blyth, Charles Eiseman, John Castorino & John Malone
Unisexual Ambystoma salamander egg masses have often been observed to exhibit very high rates of embryo mortality. The ecological consequences and underlying mechanisms are of great concern to researchers and managers studying these and other members of the species complex, all of which are listed as rare species throughout much of their range. Substantial embryo mortality is commonly used by field ecologists as an indicator that unisexual salamanders are present in a pond; egg masses...

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