說明
This dataset supports a research study on the recolonisation of Mediterranean rivers by the European otter (Lutra lutra), a protected species and a recognized bioindicator of freshwater ecosystem quality. The study aims to better understand the dynamics of otter re-establishment in a highly anthropogenic environment.
The dataset compiles non-invasive monitoring data collected along the Lez River and its tributaries (southern France). It integrates multiple complementary survey methods to document species presence and activity.
Presence signs: Field surveys of otter spraints collected along riverbanks and waterways.
Camera trapping: Video recordings and detections documenting otter activity as well as other sympatric wildlife species.
Environmental DNA (eDNA): Molecular detection of otter and other vertebrate species from aquatic samples collected at study sites.
Genetic analyses were performed on spraint samples (individual identification, population origin, and diet characterization). However, these genetic results are not included in the present dataset.
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 10,038 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。:
Gimenez O, Lacombe S (2026). Study of the European otter (Lutra lutra) in the watersheds of the Montpellier metropolitan area. Version 1.0. Centre d’Ecologie Fonctionnelle & Evolutive (CEFE). Occurrence dataset. https://ipt.gbif.fr/resource?r=otter_gimenez&v=1.0
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: 23162802-ab30-4cc5-b081-6e3865dd21e2。 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
Occurrence; European otter; Lutra lutra; Non-invasive monitoring; Camera trapping; Environmental DNA; Spraint surveys; Freshwater ecosystems; River monitoring; Urban ecology; Wildlife recolonisation; Protected species; Ecological connectivity; Green and Blue Infrastructure; Long-term ecological monitoring; Mediterranean rivers; Observation
聯絡資訊
https://orcid.org/https://orcid.org/0000-0001-7001-5142
地理涵蓋範圍
N/A
| 界定座標範圍 | 緯度南界 經度西界 [43.534, 3.729], 緯度北界 經度東界 [43.924, 4.181] |
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分類群涵蓋範圍
無相關描述
| Kingdom | Animalia |
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| Class | Aves, Mammalia, Amphibia, Actinopterygii |
| Order | Anseriformes, Artiodactyla, Galliformes, Perissodactyla, Passeriformes, Pelecaniformes, Chiroptera, Lagomorpha, Eulipotyphla, Gruiformes, Carnivora, Salmoniformes, Mugiliformes, Atheriniformes, Osmeriformes, Gobiiformes, Syngnathiformes, Beloniformes, Scorpaeniformes, Perciformes, Cetartiodactyla, Anura, Esociformes, Chelonii, Accipitriformes, Cyprinodontiformes, Siluriformes, Urodela, Columbiformes, Charadriiformes, Cypriniformes, Psittaciformes, Anguilliformes, Rodentia, Strigiformes, Coraciiformes, Piciformes, Pleuronectiformes, Clupeiformes |
| Family | Sylviidae, Mugilidae, Argentinidae, Sphyraenidae, Phylloscopidae, Columbidae, Certhiidae, Carangidae, Echimyidae, Ictaluridae, Anguillidae, Siluridae, Muridae, Picidae, Moronidae, Triglidae, Atherinidae, Fringillidae, Alcedinidae, Scolopacidae, Talpidae, Camelidae, Xenocyprididae, Viverridae, Sciuridae, Recurvirostridae, Percidae, Gobionidae, Emydidae, Engraulidae, Esocidae, Blenniidae, Soricidae, Poeciliidae, Phasianidae, Acheilognathidae, Turdidae, Psittaculidae, Paridae, Ardeidae, Salmonidae, Salamandridae, Anatidae, Cyprinidae, Ranidae, Bufonidae, Tincidae, Alosidae, Troglodytidae, Laridae, Corvidae, Leporidae, Leuciscidae, Muscicapidae, Canidae, Phalacrocoracidae, Castoridae, Gobiidae, Nemacheilidae, Suidae, Discoglossidae, Vespertilionidae, Pandionidae, Sturnidae, Clupeidae, Gliridae, Cottidae, Myocastoridae, Sparidae, Prunellidae, Accipitridae, Scombridae, Alaudidae, Rallidae, Syngnathidae, Cervidae, Belonidae, Soleidae, Mustelidae, Centrarchidae, Alytidae, Cricetidae, Cisticolidae, NA, Equidae |
時間涵蓋範圍
| 起始日期 / 結束日期 | 2020-01-01 / 2025-06-02 |
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計畫資料
無相關描述
| 計畫名稱 | Study of the European otter (Lutra lutra) in the watersheds of the Montpellier metropolitan area |
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參與計畫的人員:
取樣方法
Data were collected between 2023 and 2025 as part of an ongoing long-term monitoring programme. Data were collected using a combination of non-invasive monitoring methods targeting the European otter and associated vertebrate fauna. Spraint surveys: Standardized field prospections were conducted along riverbanks and riparian habitats to detect and record otter spraints and other field signs. Camera trapping: Motion-triggered camera traps were deployed at selected sites to record wildlife activity. Video and photographic detections were reviewed for species identification. Environmental DNA: Water samples were collected and analyzed using environmental DNA metabarcoding techniques to detect the presence of otters and other vertebrate taxa. All methods were implemented following standardized protocols to ensure comparability across sites and sampling periods.
| 研究範圍 | The study was conducted along the Lez River and its tributaries in southern France (Hérault department). Sampling sites include peri-urban and urban freshwater ecosystems characterized by varying levels of anthropogenic pressure. The objective is to better understand Lutra lutra; a protected species and indicator of the quality of aquatic environments; dynamics of establishment in a highly anthropized environment. |
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方法步驟描述:
- Study design and site selection Sampling sites were selected along the Lez River and its tributaries (Hérault, southern France) in order to cover a gradient of anthropogenic pressure, from urban to peri-urban and more natural river sections. All sites were georeferenced and revisited according to the monitoring design. Field surveys of presence signs (spraints and tracks) Standardized field prospections were conducted along riverbanks and riparian habitats to detect otter presence signs. When spraints, footprints, or other diagnostic indices were observed, their location, date, and time (when available) were recorded, along with observer identity and field comments (e.g. freshness, size, substrate). Each record was later standardized as an occurrence. Camera trapping Motion-triggered camera traps were deployed at selected locations such as river crossings, banks, or frequently used paths. Cameras recorded continuously during deployment periods. Videos and images were reviewed, and species identifications were validated based on visual evidence. Each detection event was formatted as a standardized occurrence with date, time, and geographic coordinates. Environmental DNA (eDNA) sampling Water samples were collected at monitoring sites following harmonized protocols. Samples were analyzed using metabarcoding techniques by a specialized laboratory (e.g. SPYGEN). Species detections were converted into occurrence records using presence/absence coding at the site × taxon level, with environmental DNA specified as the identification method. Taxonomic standardisation Taxa were standardized against national taxonomic references (e.g. TAXREF). When identification to species level was not possible, records were retained at the most reliable taxonomic rank. Data harmonisation and quality control All records underwent validation procedures including coordinate verification, date formatting, and consistency checks across datasets and sampling methods. Occurrence status was harmonized (present vs non-detected where applicable), and duplicates or inconsistencies were corrected. Genetic analyses of spraints Additional genetic analyses were performed on some spraint samples (e.g. individual identification, origin, diet). These genetic results are not included in this published dataset, which contains only field detection data.
引用文獻
- Olivier Gimenez, Simon Lacombe, Louis Barbu, Yann Raulet, Vincent Sablain, et al.. Étude du retour de la Loutre d'Europe Lutra lutra (Linnaeus, 1758) sur le fleuve Lez (fleuve côtier, Hérault, France) grâce aux méthodes non-invasives de suivi des populations et une collaboration étroite entre structures académiques et territoriales. 2024. ⟨hal-04725018v2⟩