Luquillo Experimental Forest site, station El Verde, study of animal abundance of Setophaga ruticilla (American redstart) in units of numberInsideOf25mRadiusCircle on a yearly timescale

The EcoTrends project was established in 2004 by Dr. Debra Peters
(Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and
Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest)
to support the collection and analysis of long-term ecological datasets.
The project is a large synthesis effort focused on improving the accessibility
and use of long-term data. At present, there are ~50 state and federally funded
research sites that are participating and contributing to the EcoTrends project,
including all 26 Long-Term Ecological Research (LTER) sites and sites funded by
the USDA Agriculture Research Service (ARS), USDA Forest Service,
US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal
(http://www.ecotrends.info). This web portal enables the continuation of data
compilation and accessibility by users through an interactive web application.
Ongoing data compilation is updated through both manual and automatic
processing as part of the LTER Provenance Aware Synthesis Tracking
Architecture (PASTA). The web portal is a collaboration between the Jornada LTER
and the LTER Network Office. The following dataset from Luquillo Experimental Forest (LUQ)
contains animal abundance of Setophaga ruticilla (American redstart) measurements in numberInsideOf25mRadiusCircle units
and were aggregated to a yearly timescale.

生态趋势项目（EcoTrends project）由黛布拉·彼得斯博士（Debra Peters，约尔纳达盆地长期生态研究站（Long-Term Ecological Research, LTER），美国农业部农业研究服务局（USDA-ARS）约尔纳达实验牧场）与阿里尔·卢戈博士（Ariel Lugo，卢奎洛长期生态研究站（Long-Term Ecological Research, LTER），美国农业部林业局（USDA-FS）卢奎洛实验森林）于2004年创立，旨在支撑长期生态数据集的采集与分析工作。该项目是一项大型综合研究计划，核心目标是提升长期生态数据的可获取性与利用率。目前已有约50个由州政府及联邦政府资助的研究站点参与并为生态趋势项目贡献数据，其中涵盖全部26个长期生态研究（Long-Term Ecological Research, LTER）站点，以及由美国农业部农业研究服务局（USDA Agriculture Research Service, ARS）、美国农业部林业局（USDA Forest Service）、美国能源部（US Department of Energy）、美国地质调查局（US Geological Survey, USGS）资助的站点与众多高校站点。生态趋势项目的数据集可通过探索性网络门户（http://www.ecotrends.info）获取。该网络门户依托交互式网页应用，支持用户持续开展数据汇编与数据访问工作。作为长期生态研究溯源感知综合跟踪架构（LTER Provenance Aware Synthesis Tracking Architecture, PASTA）的组成部分，持续进行的数据汇编工作通过人工与自动两种处理流程完成更新。该网络门户是约尔纳达LTER站与LTER网络办公室的合作成果。下述来自卢奎洛实验森林（Luquillo Experimental Forest, LUQ）的数据集，包含以25米半径圆形区域内个体数量为单位的橙尾鸲莺（Setophaga ruticilla, American redstart）种群丰度测量数据，并已按年度时间尺度进行聚合。