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Filters Date Range Past year (3) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Pacific Island Ecosystems Research Center U.S. Geological Survey Paul M Cryan Marcos Gorresen U.S. Geological Survey - ScienceBase More... Categories Data (2) Tag Types Theme (3) Place (3) Harvest Set (1) USGS Scientific Topic Keyword (1) Tag Schemes None (3) ISO 19115 Topic Category (3) View Results as: JSON ATOM CSV

Guam, Mariana swiftlet nest cluster counts, 2019-2023 The yǻyaguak (Mariana swiftlet; Aerodramus bartschi) is an endangered cave-nesting species historically found on Guam and the southern Mariana Islands, Micronesia. The population on Guam has been severely impacted by the introduction of the brown treesnake (Boiga irregularis). Population status assessments have, however, been challenging due to the limitations of traditional counting methods, which rely on visual observations at cave entrances and are prone to inaccuracies. To improve count accuracy, we estimated yǻyaguak population size and relative nesting activity using thermal and near-infrared videography at Mahlac, Maemong and Fachi Caves from April 2019 to April 2023. This study demonstrates the potential... Categories: Data; Tags: Guam, Mariana swiftlet, Talofofo, biota, videographic monitoring, All tags... yǻyaguak, Fewer tags Guam, Mariana swiftlet colony size and nest counts, 2019-2023 The yǻyaguak (Mariana swiftlet; Aerodramus bartschi) is an endangered cave-nesting species historically found on Guam and the southern Mariana Islands, Micronesia. The population on Guam has been severely impacted by the introduction of the brown treesnake (Boiga irregularis). Population status assessments have, however, been challenging due to the limitations of traditional counting methods, which rely on visual observations at cave entrances and are prone to inaccuracies. To improve count accuracy, we estimated yǻyaguak population size and relative nesting activity using thermal and near-infrared videography at Mahlac, Maemong and Fachi Caves from April 2019 to April 2023. This study demonstrates the potential... Categories: Data; Tags: Guam, Mariana swiftlet, Talofofo, biota, videographic monitoring, All tags... yǻyaguak, Fewer tags Guam, Mariana swiftlet counts, 2019-2023 The yǻyaguak (Mariana swiftlet; Aerodramus bartschi) is an endangered cave-nesting species historically found on Guam and the southern Mariana Islands, Micronesia. The population on Guam has been severely impacted by the introduction of the brown treesnake (Boiga irregularis). Population status assessments have, however, been challenging due to the limitations of traditional counting methods, which rely on visual observations at cave entrances and are prone to inaccuracies. To improve count accuracy, we estimated yǻyaguak population size and relative nesting activity using thermal and near-infrared videography at Mahlac, Maemong and Fachi Caves from April 2019 to April 2023. This study demonstrates the potential... Tags: Guam, Mariana swiftlet, Talofofo, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... biota, videographic monitoring, yǻyaguak, Fewer tags