Massane meiofauna records

<p>We report the results of a faunistic survey focused on freshwater and limno-terrestrial meiofauna to improve biodiversity knowledge in a protected area in the Eastern part of the French Pyrénées: the Massane Forest Reserve (336 Ha). The survey provided 1192 occurrence records from 315 taxa (most resolved at species-level), uploaded as a shared online dataset.<br />
The dataset of freshwater and limno-terrestrial meiofauna from the Massane Reserve and surrounding areas was built starting from 150 samples collected during several survey in the area between 2021 and 2023, covering diverse organismic groups from different habitats.</p>
<p>The highest number of occurrences and distinguishable morpho-taxa belong to the group Nematoda (775 occurrences, 172 taxa), followed by Rotifera (219 occurrences, 67 taxa), Platyhelminthes (85 occurrences, 32 taxa), Tardigrada (69 occurrences, 25 taxa), and Gastrotricha (39 occurrences, 19 taxa). A diversity of meiofaunal organisms was found, in large numbers, in all the samples screened: from stream biofilms and sediments, to forest floor soils, mosses, and litter, to a broad range of tree-related micro-habitats associated with beech-like epixylic mosses and lichens, tree cavities, woodpecker breeding holes, bark pockets and fruiting bodies of saproxylic fungi.<br />
The dataset includes 1192 occurence records of 315 distinct taxa of meiofauna collected at the Massane Forest Reserve: 219 taxa have been diagnosed at species-level, 75 at genus-level and 21 at family-level. Of the taxa reported in the current dataset, 41 (13%) are Rotifera Bdelloidea (157 occurrences), 26 (8%) are Rotifera Monogononta (62 occurrences), 19 (6%) are Gastrotricha (39 occurrences), 25 (7.9%) are Tardigrada (69 occurrences), 172 (54%) are Nematoda (775 occurrences) and 32 (10%) are Platyhelminthes (85 occurences).<br />
The data were structured based on the Darwin Core standard (Wieczorek et al., 2012).</p>
<p>This survey makes the Massane forest one of the few protected areas of the world with a taxa-inclusive meiofauna dataset, which could serve as a standard inventory to further consider micro-invertebrates in forest conservation.</p>

本报告呈现了对法国比利牛斯山脉东部一保护区——马桑森林保护区（面积336公顷）淡水及水陆两栖 meiofauna 进行的物种调查结果，旨在提升该区域生物多样性认知。调查共获得1192个物种出现记录，涉及315个物种（大部分已明确至物种水平），并作为共享在线数据集发布。<br />
该数据集由马桑保护区及其周边地区采集的150个样本构建而成，始于2021年至2023年间的一系列调查，涵盖了不同生境中的多种生物群体。<br />
出现频率最高及形态分类可辨识的物种属于线虫门（775个出现记录，172个物种），其次是轮虫门（219个出现记录，67个物种），扁形动物门（85个出现记录，32个物种），缓步动物门（69个出现记录，25个物种）和轮虫门（39个出现记录，19个物种）。所有筛选的样本中均发现了丰富多样的 meiofaunal 生物，数量庞大，包括溪流生物膜和沉积物、森林地表土壤、苔藓、落叶，以及与山毛榉状地衣和苔藓、树洞、啄木鸟筑巢孔、树皮孔隙和腐木真菌果实体等相关的广泛树相关微生境。<br />
数据集包含在马桑森林保护区收集的1192个 meiofauna 物种出现记录，涉及315个不同的物种：其中219个物种已鉴定至物种水平，75个物种已鉴定至属水平，21个物种已鉴定至科水平。在当前数据集中报告的物种中，41个（占13%）为轮虫门Bdelloidea（157个出现记录），26个（占8%）为轮虫门Monogononta（62个出现记录），19个（占6%）为缓步动物门（39个出现记录），25个（占7.9%）为缓步动物门（69个出现记录），172个（占54%）为线虫门（775个出现记录），以及32个（占10%）为扁形动物门（85个出现记录）。<br />
数据结构基于达尔文核心标准（Wieczorek et al., 2012）进行构建。<br />
此次调查使马桑森林成为世界上少数拥有全面物种 meiofauna 数据集的保护区之一，该数据集可作为森林保护中进一步考虑微型无脊椎动物的标准化清单。</p>