Quantifying biodiversity in remote environments is logistically challenging, and the labor required for accurate assessments can be expensive. Scientists continue to develop novel methods for assessing biodiversity in more efficient ways, which may lead to improved conservation assessments of underexplored regions. To that end, I have recently collaborated with colleagues to test the efficacy of passive sampling methods for detecting amphibians in Pennsylvania and Borneo.
One method utilizes sound recorders and automated software to identify frog calls. Preliminary results indicate that sampling array can strongly impact detection probability, but that targeted design has strong potential for success. Further data exploration will identify differences in call activity across habitat type, and determine whether call timing varies by species, as well as potential taxonomic biases in detection, to fully assess the value of automated sound recorders in rapid conservation assessment.
Another method to passively sample amphibians is using environmental DNA (eDNA). Recent work in Pennsylvania indicates high likelihood of detecting stream amphibians here, and we are currently analyzing samples from Borneo to determine the feasibility of utilizing eDNA to complement visual encounter surveys in remote regions of high conservation concern. This work engages undergraduate research assistants in the lab & field,
One method utilizes sound recorders and automated software to identify frog calls. Preliminary results indicate that sampling array can strongly impact detection probability, but that targeted design has strong potential for success. Further data exploration will identify differences in call activity across habitat type, and determine whether call timing varies by species, as well as potential taxonomic biases in detection, to fully assess the value of automated sound recorders in rapid conservation assessment.
Another method to passively sample amphibians is using environmental DNA (eDNA). Recent work in Pennsylvania indicates high likelihood of detecting stream amphibians here, and we are currently analyzing samples from Borneo to determine the feasibility of utilizing eDNA to complement visual encounter surveys in remote regions of high conservation concern. This work engages undergraduate research assistants in the lab & field,