MCR LTER: Coral Reef: Long-term Community Dynamics: Backreef (Lagoon) Corals Annual Survey, ongoing since 2005 (Reformatted to the ecocomDP Design Pattern)

This data package is formatted as an ecocomDP (Ecological Community
Data Pattern). For more information on ecocomDP see
https://github.com/EDIorg/ecocomDP. This Level 1 data package was
derived from the Level 0 data package found here: https://pasta.lternet.edu/package/metadata/eml/knb-lter-mcr/1038/10.
The abstract below was extracted from the Level 0 data package and
is included for context: This dataset contains the percentage cover of all stony corals (Scleractinia, pooled among genera) and other major groups analyzed from 0.5 x 0.5 m photographic quadrats at the Backreef habitat at the Moorea Coral Reef LTER, French Polynesia. This survey time series began in 2005 and is repeated each year in April. Functional groups counted are: Scleractinian corals, Macroalgae, Crustose Coralline Algae / Bare Space, Soft Corals, Hydrocorals (Millepora), Algal Turf and Sand. The coral community was sampled photographically in all represented habitats surrounding the island: Fringing Reef, Lagoon, and Outer Reef. This dataset contains only Lagoon (Backreef) data (see knb-lter-mcr.4 for the other habitats) and is structured in a repeated-measures protocol to allow a statistical contrast of sites, shores and times. Community structure was determined through a coarse analysis of the benthic community, initially completed in situ (2005), but using photoquadrats from 2006. There are quadrats analyzed at each of five areas within each site, and the areas are revisited (but not the quadrats) each year to support the repeated measures design. There are two tables available, providing different views of the same data: a long table having all values in one column and a wide table having a separate column for each observed object. Detailed methods are available in the protocols section. This material is based upon work supported by the U.S. National Science Foundation under
Grant No. OCE 16-37396 (and earlier awards) as well as a generous gift from the Gordon and
Betty Moore Foundation. Research was completed under permits issued by the French Polynesian
Government (Délégation à la Recherche) and the Haut-commissariat de la République en
Polynésie Francaise (DTRT) (Protocole d'Accueil 2005-2018). This work represents a
contribution of the Moorea Coral Reef (MCR) LTER Site.

本数据包采用ecocomDP（生态群落数据模式，Ecological Community Data Pattern）格式构建。如需了解ecocomDP的更多信息，请访问：https://github.com/EDIorg/ecocomDP。本一级（Level 1）数据包源自对应的零级（Level 0）数据包，其来源地址为：https://pasta.lternet.edu/package/metadata/eml/knb-lter-mcr/1038/10。以下摘选自该零级数据包，用于提供上下文背景：本数据集涵盖法属波利尼西亚莫洛凯珊瑚礁长期生态研究（Long Term Ecological Research, LTER）站点背礁（Backreef）生境中，通过0.5×0.5米摄影样方统计得到的所有石珊瑚（石珊瑚目，Scleractinia，按属合并统计）及其他主要类群的盖度百分比。本调查时间序列始于2005年，每年4月重复开展一次。统计的功能类群包括：石珊瑚、大型藻类、壳状珊瑚藻/裸露空间、软珊瑚、水螅珊瑚（多孔螅属，Millepora）、藻席以及沙质沉积物。原本该珊瑚群落调查覆盖了该岛屿周边所有代表性生境：岸礁、泻湖以及外礁，但本数据集仅包含泻湖（背礁）相关数据（其他生境数据请参见knb-lter-mcr.4），并采用重复测量实验设计，可用于开展样点、岸线与时间维度的统计对比分析。底栖群落结构通过粗分类分析得到，2005年的分析最初为原位完成，2006年起则采用摄影样方数据进行分析。每个样点内设有5个采样区域，每年会对这些区域进行重访（但不重复使用原样方），以契合重复测量的研究设计。本数据集提供两张数据表，从不同维度展示同一套数据：一张为长格式表，将所有数值整合至单一列；另一张为宽格式表，对每一个观测对象单独设置一列。详细的实验方法可参见方案章节。本研究工作得到了美国国家科学基金会（U.S. National Science Foundation）编号为OCE 16-37396（及早期资助项目）的项目拨款，以及戈登和贝蒂·摩尔基金会（Gordon and Betty Moore Foundation）的慷慨捐赠支持。相关研究工作依据法属波利尼西亚研究代表团（Délégation à la Recherche）以及法国驻波利尼西亚高级专员公署（Haut-commissariat de la République en Polynésie Francaise）颁发的许可开展（接待协议编号：Protocole d'Accueil 2005-2018）。本成果为莫洛凯珊瑚礁（MCR）长期生态研究站点的贡献内容。