Data from: Large-scale recovery of an endangered amphibian despite ongoing exposure to multiple stressors

Knapp RA, Fellers GM, Kleeman PM, Miller DAW, Vredenburg VT, Rosenblum EB, Briggs CJ

Date Published: October 6, 2016

DOI: http://dx.doi.org/10.5061/dryad.rm382

 

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Title Frog resurvey dataset
Downloaded 40 times
Description For each of the 7678 surveys conducted during the study, abundance of Rana sierrae adults, subadults, and tadpoles, as well as survey/site characteristics. Data fields are described in the associated ReadMe file.
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Title Frog resurvey: R code used in analysis of frog population trends
Downloaded 16 times
Description R code to run primary trend analyses in Knapp et al. (2016). Models were fit using the package 'INLA' version 0.0-1420281647. An adjacency file (W.dat) is needed to model the spatial random effects, and is provided as part of this data package.
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Title Frog resurvey: Adjacency file
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Description Adjacency file needed to model the spatial random effects
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Title Frog susceptibility dataset
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Description Results of the laboratory frog susceptibility experiment described in Knapp et al. (2016). In this experiment, we collected Rana sierrae adults from each of three persistent populations (in which frogs have persisted with the amphibian chytrid fungs (Batrachochytrium dendrobatidis; Bd) for at least 10 years) and three Bd-naïve populations (that have never been exposed to Bd). In the laboratory, we exposed pairs of frogs (one from a persistent population and one from a naïve population) to one of four strains of Bd. Bd was cultured from two persistent frog populations and two populations in which frogs had recently experienced Bd-caused mass die offs (“die-off” populations). After Bd exposure, we measured Bd infection intensities (“loads”) on frogs over a 15-wk period. Additional details are provided in Knapp et al. (2016) and in the associated ReadMe file.
Download README.docx (12.53 Kb)
Download Knapp_lab_experiment_data.csv (20.98 Kb)
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Title Frog susceptibility: SAS code used to analyze results from laboratory experiment
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Description This SAS code was used to analyze the results obtained from the laboratory Rana sierrae susceptibility experiment. We used a model selection strategy to examine the effects of frog type (collected from a persistent or naïve population), frog source (one of six populations), Bd type (collected from a persistent or die-off population), Bd source (one of four populations), and interactions of these effects on Bd load [log10(zoospore equivalent [ZE] + 1)]. Additional details are provided in Knapp et al. (2016).
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When using this data, please cite the original publication:

Knapp RA, Fellers GM, Kleeman PM, Miller DAW, Vredenburg VT, Rosenblum EB, Briggs CJ (2016) Large-scale recovery of an endangered amphibian despite ongoing exposure to multiple stressors. Proceedings of the National Academy of Sciences of the United States of America 113(42): 11889-11894. http://dx.doi.org/10.1073/pnas.1600983113

Additionally, please cite the Dryad data package:

Knapp RA, Fellers GM, Kleeman PM, Miller DAW, Vredenburg VT, Rosenblum EB, Briggs CJ (2016) Data from: Large-scale recovery of an endangered amphibian despite ongoing exposure to multiple stressors. Dryad Digital Repository. http://dx.doi.org/10.5061/dryad.rm382
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