Mammal Species Relative Abundance Matrix - Manu National Park, Peru

This dataset is a mammal species abundance matrix, with camera trap ID's as rows and species names as columns. <br> Data was collected using camera traps in Manu National Park, Madre de Dios, Peru at Cocha Cashu Biological Station (2019, July-August, dry season) and at the indigenous communities:Yomibato, Tayakome, and Maizal (2013-2015, wet and dry seasons). <br> Cocha Cashu camera ID codes include code "CT_No." , for single traps or "Name_PCT" for paired traps. Single traps were spaced 500m in a regular grid, and paired traps were placed inside the grid originally part of an individual jaguar identification study. Traps were installed 30 - 60 cm above the ground on a tree on access trails and were active for 24 hrs/day. Trapping effort was 1,312 trap nights. <br> Camera traps at indigenous communities include ID code "MCT_No" for Maizal, "T_No" for Tayakome, "YCT_No" for Yomibato. At each community, camera traps were placed in the hunting zone, spaced 2 km apart with an additional camera in the centre at 1.6 km apart from other cameras, conforming to TEAM Network methodology. Trapping effort: Maizal: 3,630; Tayakome: 6,375; Yomibato: 3,165 trap nights. <br> Independent species capture events, dates, and times were extracted in R statistical programming language using the Camtrap R package. Photos of the same species within the same hour were excluded to maintain independent capture events. <br> The relative abundance for each species for each season across all years was calculated as the number of independent capture events divided by the total number of nights each camera was active and then the result was multiplied by 100. Abundances were then averaged across both seasons.

本数据集为哺乳动物物种种丰度矩阵，以红外相机陷阱（camera trap）编号为行，物种名称为列。<br>数据采用红外相机陷阱采集，采集地点包括秘鲁马德雷德迪奥斯大区马努国家公园内的科查卡舒生物站（2019年7-8月，旱季），以及约米巴托（Yomibato）、塔亚科梅（Tayakome）、迈萨尔（Maizal）三个原住民社区（2013-2015年，涵盖干湿两季）。<br>科查卡舒站点的相机编号规则为：单台相机陷阱采用"CT_No."格式，配对相机陷阱则采用"Name_PCT"格式。单台相机陷阱以规则网格形式布设，间距为500米；配对相机陷阱则布设于原用于美洲豹个体识别研究的网格区域内。相机陷阱安装于通行步道旁的树木上，离地高度30至60厘米，每日24小时持续运行，总诱捕时长为1312个相机夜（trap night）。<br>原住民社区的红外相机陷阱编号规则为：迈萨尔社区采用"MCT_No."格式，塔亚科梅社区采用"T_No."格式，约米巴托社区采用"YCT_No."格式。各社区的相机陷阱均布设于狩猎区内，布设间距为2千米，中心区域额外增设1台相机，与其余相机间距为1.6千米，布设方案符合TEAM网络（TEAM Network）的技术规范。各站点诱捕时长分别为：迈萨尔社区3630个相机夜，塔亚科梅社区6375个相机夜，约米巴托社区3165个相机夜。<br>研究采用R语言（R statistical programming language）结合Camtrap R包，提取独立物种捕获事件、日期与时间信息。为确保捕获事件的独立性，同一小时内同一物种的重复照片将被剔除。<br>研究计算了各年份各季节下各物种的相对丰度：以独立捕获事件总数除以单台相机总有效运行夜数，再将结果乘以100；随后对干湿两季的丰度结果取平均值。