説明
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
データ レコード
この オカレンス（観察データと標本) リソース内のデータは、1 つまたは複数のデータ テーブルとして生物多様性データを共有するための標準化された形式であるダーウィン コア アーカイブ (DwC-A) として公開されています。 コア データ テーブルには、112 レコードが含まれています。
この IPT はデータをアーカイブし、データ リポジトリとして機能します。データとリソースのメタデータは、 ダウンロード セクションからダウンロードできます。 バージョン テーブルから公開可能な他のバージョンを閲覧でき、リソースに加えられた変更を知ることができます。
バージョン
次の表は、公にアクセス可能な公開バージョンのリソースのみ表示しています。
引用方法
研究者はこの研究内容を以下のように引用する必要があります。:
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
権利
研究者は権利に関する下記ステートメントを尊重する必要があります。:
パブリッシャーとライセンス保持者権利者は Centre d’Ecologie Fonctionnelle & Evolutive (CEFE)。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF登録
このリソースをはGBIF と登録されており GBIF UUID: 9fd8ed05-3ae6-453a-878a-c0a272a2b849が割り当てられています。 GBIF France によって承認されたデータ パブリッシャーとして GBIF に登録されているCentre d’Ecologie Fonctionnelle & Evolutive (CEFE) が、このリソースをパブリッシュしました。
キーワード
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
連絡先
https://orcid.org/https://orcid.org/0000-0002-8780-767X
- 最初のデータ採集者 ●
- 連絡先
地理的範囲
N/A
| 座標（緯度経度） | 南 西 [43.624, 3.822], 北 東 [43.664, 3.888] |
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プロジェクトデータ
説明がありません
| タイトル | CROA Project: Amphibians in Urban Environments (CEFE) |
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プロジェクトに携わる要員:
収集方法
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.
| Study Extent | 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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Method step description:
- 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.
追加のメタデータ
| 謝辞 | 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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| 代替識別子 | 9fd8ed05-3ae6-453a-878a-c0a272a2b849 |
| https://ipt.gbif.fr/resource?r=croa_cefe |