說明
This dataset gathers amphibian observations collected within the CROA project since 2023. It documents species presence, activity, and reproductive behavior across a range of aquatic habitats, including ponds, ditches, and natural or managed wetlands. The data include species detections, survey conditions, site locations, and sampling effort information, providing a basis for monitoring population status and supporting conservation actions in urban and peri-urban environments.
License: CC BY 4.0
資料紀錄
此資源出現紀錄的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 112 筆紀錄。
此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本，以便利追蹤其隨時間的變更。
版本
以下的表格只顯示可公開存取資源的已發布版本。
如何引用
研究者應依照以下指示引用此資源。:
Dokhelar T, Besnard A (2026). CROA Project: Urban Amphibian Occurrences and Monitoring in Southern France. Version 1.4. Centre d’Ecologie Fonctionnelle & Evolutive (CEFE). Occurrence dataset. https://ipt.gbif.fr/resource?r=croa_cefe&v=1.4
權利
研究者應尊重以下權利聲明。:
此資料的發布者及權利單位為 Centre d’Ecologie Fonctionnelle & Evolutive (CEFE)。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF 註冊
此資源已向GBIF註冊，並指定以下之GBIF UUID: 9fd8ed05-3ae6-453a-878a-c0a272a2b849。 Centre d’Ecologie Fonctionnelle & Evolutive (CEFE) 發佈此資源，並經由GBIF France同意向GBIF註冊成為資料發佈者。
關鍵字
amphibians freshwater habitats wetlands urban environments urban ecology long-term monitoring biodiversity monitoring citizen science population monitoring population dynamics reproductive activity sampling effort field surveys species occurrence conservation biology occurence; Observation
聯絡資訊
https://orcid.org/https://orcid.org/0000-0002-8780-767X
- 出處 ●
- 連絡人
地理涵蓋範圍
N/A
| 界定座標範圍 | 緯度南界 經度西界 [43.624, 3.822], 緯度北界 經度東界 [43.664, 3.888] |
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計畫資料
無相關描述
| 計畫名稱 | CROA Project: Amphibians in Urban Environments (CEFE) |
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參與計畫的人員:
取樣方法
Sampling follows a standardized field protocol based on repeated surveys of spatial grid cells during the amphibian reproductive season. Each grid cell is surveyed up to three times per year, ideally once in early spring (March–April), once in mid-spring (May), and once in late spring (June), in order to capture the phenology of different species and life stages. Surveys are primarily conducted at night, when amphibian activity and detectability are highest, using visual searches with headlamps and acoustic detection of calling males. Daytime surveys are occasionally carried out in sites with restricted nocturnal access. During each visit, all amphibians observed are recorded, including species identity (or the most precise taxonomic level possible), life stage (adult, juvenile, egg mass, tadpole), estimated abundance, and behavioral context (e.g. calling, in water, on land). In parallel, all aquatic habitats encountered within each grid cell are inventoried and characterized, allowing the monitoring of breeding sites and habitat availability over time.
| 研究範圍 | The CROA project focuses on monitoring amphibian populations in urban and peri-urban environments in the northern part of Montpellier and surrounding municipalities (southern France). The study area is subdivided into predefined spatial grid cells (mailles), each identified by a unique identifier, covering a mosaic of habitats including urban parks, residential areas, wastelands, riverbanks, retention basins, wetlands, and other aquatic or semi-aquatic environments. Data have been collected continuously since 2023, with surveys conducted during the amphibian breeding season from March to June. The spatial and temporal extent of the dataset reflects variations in sampling effort between years, while providing long-term baseline information on species occurrence, breeding activity, and habitat use in an urban context. |
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方法步驟描述:
- Field data are collected directly in the field using the QField mobile application. For each survey event, general information is recorded at the grid-cell level, including date, survey type (diurnal or nocturnal), weather conditions, survey duration, dominant habitat type, and list of observers. Each amphibian observation is then entered as an individual record linked to the corresponding grid cell and date. When species-level identification is uncertain, generic taxonomic categories (e.g. sp. or “undetermined”) are used, optionally accompanied by explanatory remarks. Aquatic habitats are digitized as polygons and described using standardized attributes (habitat type, estimated depth, permanence, presence of fish or crayfish). After field collection, data are exported, quality-checked, taxonomically harmonized using national reference lists, and structured into relational tables. Occurrence data are then transformed into Darwin Core format for publication through GBIF, ensuring interoperability and long-term accessibility.
額外的詮釋資料
| 致謝 | We would like to sincerely thank Maël Moulin and Lison Charlier for the quality of their internship work. A big thank you also goes to all the volunteers for their commitment and valuable contribution: Cyrielle Ballester, Soumaya Belghali, Christelle Beusquart, Léo Blondet, Tom Carli, Tom Chaubet, Guillaume Didier, Jordan Emerit, Marie Esquerre, Max François, Elodie Gazanion, Léo Gentile, Guy Lepinoy, Noé Lion, Bastien Macé, Titouan Montessuit, Valérie Peltrault, Agathe Pierre, Manon Skrypczuk, Elise Thiery, Félix Thirion, Sara Vasseur, Amandine Vellas, and Lucas Wesemann. Finally, we warmly thank our partners, UnisCité and the Montpellier Zoo, for their support and collaboration on this project. |
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| 替代的識別碼 | 9fd8ed05-3ae6-453a-878a-c0a272a2b849 |
| https://ipt.gbif.fr/resource?r=croa_cefe |