{"key":"790244fc-c7cb-41ca-91ac-15ff7d7c4716","installationKey":"d0e2b9a9-8496-4959-8cba-a7fea22537eb","publishingOrganizationKey":"fa99bff8-6caa-495c-b136-128e541041cc","doi":"10.15468/dpc54m","external":false,"numConstituents":0,"type":"OCCURRENCE","subtype":"OBSERVATION","shortName":"PAM frogs observations Roztochya","title":"Passive acoustic monitoring observations of amphibians in Ukrainian Roztochya","description":"<p>This dataset contains amphibian observations collected through passive acoustic monitoring in the Ukrainian Roztochya region. Data were recorded using autonomous acoustic recorders and analyzed using a custom deep learning model for amphibian species identification, developed based on the BirdNET architecture (<a href=\"https://doi.org/10.5281/zenodo.17736511\">https://doi.org/10.5281/zenodo.17736511</a>).\nThe dataset represents observations aggregated to unique combinations of hour/date and location (one record per species per location per date per hour). Original acoustic data consisted of continuous recordings that were processed through the custom-trained model for automated species detection. To ensure data quality, automated detections were randomly sampled and verified by human experts. An optimal confidence threshold for species identification was determined using logistic regression following the methodology of Wood and Kahl (2024; <a href=\"https://doi.org/10.1007/s10336-024-02144-5\">https://doi.org/10.1007/s10336-024-02144-5</a>). Some records included in this dataset have been quality-controlled and represent verified presence observations and this is mentioned in attributive data. The data contribute to understanding the distribution and occurrence patterns of amphibians in the region.</p>","language":"eng","citation":{"text":"Strus V, Strus I, Smirnov N, Fedorova A, Suriadna N, Drohvalenko M (2025). Passive acoustic monitoring observations of amphibians in Ukrainian Roztochya. Nature Reserve \"Roztochya\". 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