Batrachochytrium dendrobatidis found on 21 species of Oklahoma amphibians

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The Sam Noble Museum Herpetology Department was recently funded by Oklahoma Department of Wildlife Conservation (ODWC) and Oklahoma City Zoo Conservation Action Now (CAN) to conduct Oklahoma statewide surveys to test for the presence and prevalence of the amphibian infectious disease Batrachochytrium dendrobatidis (also know as Bd or chytrid) over a three year period. Members of the Siler Lab spent August–October extracting DNA from swabs that had been rubbed along the exterior of live amphibian bodies (caught March–October 2015). Our collaborators at the University of South Dakota are currently screening our samples for Bd. Below is a table indicating Bd+ and prevalence by species in Oklahoma. You can also view our current results by Oklahoma county.

Anura (frogs and toads)

Family Genus Species Total # Sampled Total # Bd+ Prevalence (%)
Bufonidae Anaxyrus americanus 27 24 88.9
Bufonidae Anaxyrus woodhousii 1 0 0
Hylidae Acris blanchardi 233 150 64.4
Hylidae Hyla chrysoscelis/versicolor 56 29 51.8
Hylidae Hyla cinerea 21 13 61.9
Hylidae Pseudacris clarkii 3 2 66.7
Hylidae Pseudacris crucifer 1 0 0
Hylidae Pseudacris fouquettei 2 2 100.0
Hylidae Pseudacris streckeri 2 2 100.0
Microhylidae Gastrophryne carolinensis 7 7 100.0
Microhylidae Gastrophryne olivacea 13 10 76.9
Ranidae Lithobates catesbeianus 147 82 55.8
Ranidae Lithobates clamitans 23 8 34.8
Ranidae Lithobates sphenocephalus 72 33 45.8
TOTAL     644 378 58.7

 

Caudata (salamanders)

Family Genus Species Total # Sampled Total # Bd+ Prevalence (%)
Ambystomatidae Ambystoma annulatum 8 6 75.0
Ambystomatidae Ambystoma opacum 2 0 0
Ambystomatidae Ambystoma texanum 4 4 100.0
Plethodontidae Eurycea longicauda 30 14 46.7
Plethodontidae Eurycea lucifuga 7 1 14.3
Plethodontidae Eurycea multiplicata 3 1 33.3
Plethodontidae Eurycea tynerensis 10 3 30.0
Plethodontidae Plethodon albagula 17 5 29.4
Plethodontidae Plethodon angusticlavius 4 1 25.0
Salamandridae Notophthalmus viridescens 80 65 81.25
TOTAL     157 94 59.9

 

Results will be updated monthly, so please check back again! (last updated 2/20/17).