Amphibian encounter data and associated covariate data from the Midwest Region of Amphibian Research and Monitoring Initiative (ARMI) surveys 2002-2012

This data set contains information on detections of anuran (i.e., frogs and toads) species at six different management areas in the midwestern United States from 2002 to 2012. From 2002 to 2005 anuran communities were surveyed during the day using multiple methods at individual study wetlands?visual encounter surveys, dip net surveys, and calling surveys using multiple observers in most cases. Data are presented from each survey. From 2008 to 2012 amphibian communities were surveyed through detections of vocalizing anurans recorded by automated recording units. Automated recording units recorded five minutes at the top of every hour for the entire field season (typically April through October). Recorder data are presented for up to 15 confirmed detection dates per site per species. Original raw acoustic recordings used to create this data table are archived at the Upper Midwest Environmental Science Center.

本数据集收录了2002年至2012年间，美国中西部6处不同管理区域内无尾两栖动物（Anuran，即蛙类与蟾蜍类）的目击记录信息。2002年至2005年，研究团队在单个研究湿地开展日间无尾两栖动物群落调查，多数情况下由多名观测者采用目视偶遇调查（Visual Encounter Surveys）、扫网调查（Dip Net Surveys）与鸣声调查（Calling Surveys）多种方法，各次调查的相关数据均已完整纳入本数据集。2008年至2012年，研究团队通过自动录音设备（Automated Recording Units）录制的鸣叫无尾两栖动物音频开展两栖动物群落调查：自动录音设备在整个野外调查季（通常为4月至10月）内，于每小时整点时段录制5分钟音频。本数据集收录每个调查点对应每个物种最多15个经确认的检测日期的相关数据。用于构建本数据表的原始声学录音素材，已归档于美国中西部上游环境科学中心（Upper Midwest Environmental Science Center）。