Description
This dataset presents the results of mosquito sampling conducted in Montpellier, France, from April to October 2023. Sampling was carried out by the University of Montpellier (UM) and the Institut de Recherche pour le Développement (IRD) under the V2MOC project (Végétalisation des villes et risque vectoriel en Occitanie (https://rivoc.edu.umontpellier.fr/files/2024/05/V%C2%B2MOC-site-web.pdf)). Data were collected using BG Pro© traps equipped with a lure attractant and a daily CO₂ source. Traps were deployed in two urban parks (the Botanical Garden and Parc de l'Aiguelongue), three residential neighborhoods (Aiguerelles, Lemasson, and Soulas), and four sites in the city center. Sampling occurred on two consecutive days each month from April to October 2023, with each sampling session lasting 48 hours. Detailed sampling methods are provided in the "Sampling Methods" section of the metadata.
Additionally, we provide three types of information to enrich this dataset: For all mosquitoes: species identification, abundance by sex, available in the Occurrence extension. For all female mosquitoes: engorgement status, and for female Aedes albopictus, physiological status, available in the Extended Measurements or Facts extension. For all sampling events: a set of environmental data (meteorological, land cover, and microclimatic), collected in the field or sourced from open-access databases, available in the Measurement or Facts extension. The presence of "0" does not indicate the absence of a species; it simply means that the species was not captured during this sampling collection.
Data Records
The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 225 records.
3 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versions
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Bartholomée C, Taconet P, Mercat M, Sutter C, Grail C, Garcia-Marin C, Bouhsira E, Fournet F, Moiroux N (2024). Monthly mosquito sampling in Montpellier (Occitanie), France, 2023. Version 1.0. IRD - Institute of Research for Development. Samplingevent dataset. https://ipt.gbif.fr/resource?r=entomological_collection_v2moc_project&v=1.0
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is IRD - Institute of Research for Development. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.
GBIF Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: 8e52f35a-2522-4865-8361-5c249310a7cf. IRD - Institute of Research for Development publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF France.
Keywords
Samplingevent; Mosquito sampling; Aedes albopictus; Culex pipiens; Culiseta; Montpellier; Specimen; Mosquito sampling; Aedes albopictus; Culex pipiens; Culiseta
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Geographic Coverage
The study took place in Montpellier, a city in southern France located in the Occitanie region, with a resident population of 305,743 as of 2024. The climate is Mediterranean, with an average annual temperature of 15°C and average annual precipitation of 739 mm, based on data from 2000 to 2020. Montpellier features over 10% vegetated areas within its densely urbanized zones and ranks among the top three greenest cities in metropolitan France. The study was conducted in both vegetated areas — specifically two urban parks (the Botanical Garden and Parc de l'Aiguelongue) and three residential neighborhoods (Lemasson, Aiguerelles, and Soulas) — and in densely built-up (impervious) sites within the city center. The impervious sites included two locations with some vegetation and two with minimal to no vegetation.
Bounding Coordinates | South West [43.584, 3.835], North East [43.64, 3.901] |
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Taxonomic Coverage
No Description available
Species | Aedes (Stegomyia) albopictus (Skuse, 1895) (Aedes albopictus), Culex pipiens Linnaeus, 1758 (Culex pipiens sensus lato), Culex hortensis Ficalbi, 1889 (Culex hortensis), Culiseta annulata (Schrank, 1776) (Culiseta annulata), Culiseta longiareolata (Macquart, 1838) (Culiseta longiareolata) |
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Temporal Coverage
Start Date / End Date | 2023-04-17 / 2023-10-18 |
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Project Data
The V2MOC project, led by Florence Fournet (IRD), aims to study the impact of urban greening on vector-borne health risks affecting humans, animals, and plants in the metropolitan areas of Montpellier and Toulouse. With a strong focus on Aedes albopictus and the health risks associated with this species, the project is organized into three work packages (WPs). The first and third WPs focus on stakeholders’ perceptions of risk and explore potential mitigation solutions. The second WP, which this dataset contributes to, involves collecting entomological and environmental data to model these risks, as part of a PhD thesis supervised by Nicolas Moiroux (IRD) and Émilie Bouhsira (ENVT).
Title | V2MOC project: Vegetation in the cities of Occitania and its possible impact on vector-borne diseases ("Végétalisation des métropoles d’Occitanie et possibles impacts sur les maladies vectorielles") |
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Funding | This project, including the associated doctoral contract, was funded by the Occitanie Region and the University of Montpellier as part of the RIVOC Key Challenges initiative (Défi Clef RIVOC: https://rivoc.edu.umontpellier.fr/projets-predefinis/). |
Study Area Description | In the V2MOC project, entomological collections took place in two municipalities: in Montpellier and in Toulouse. This dataset focus on the entomological collection of 2023 which occured in Montpellier, in different urban green areas and in the city center. |
Design Description | The objective of this study was to evaluate the effect of urban vegetation on the presence and abundance of Aedes albopictus in different cities. This dataset specifically focuses on Aedes albopictus in Montpellier. BG Pro traps were placed in various urban green areas and in the city center over a period of six months. Microclimatic data were also collected next to each trap. After collection, the mosquitoes were identified and counted. Bivariate and multivariate analyses were conducted using meteorological, microclimatic, and land cover data from open-access databases to assess the impact of urban greening on Aedes albopictus. |
Sampling Methods
Adult mosquitoes were captured in nine sites using BG-Pro traps (BioGents, Regensburg, Germany), each equipped with a BG lure—synthetic human odor mimic—and a daily replenished carbon dioxide source made from yeast, sugar, and water. At each site, two BG-Pro traps were deployed, except in the smaller impervious city center sites, which had only one trap. In the Botanical Garden, three traps were used to account for its larger area and high vegetation diversity. In total, 15 traps were distributed with no rotation between sites: five traps in urban parks (two in AIGUE and three in BOTGARD), six traps in residential areas (two per site across three sites), and four traps in impervious city center sites. Traps were placed in shaded, wind-sheltered vegetation, at a height of one meter, with their GPS coordinates recorded using KoboToolBox. Trap efficiency was improved with a catch pot developed by G. L'Ambert et al. Sampling occurred daily for two consecutive days each month from May to October 2023, with a 48-h sampling session. Mosquitoes were gathered every 24 hours between 7 and 11 a.m. and then transported to the laboratory (MIVEGEC laboratory, IRD regional delegation, Montpellier) at 4°C before being frozen at -20°C for later identification. Mosquito individuals were sorted by sex, and females and males were identified morphologically using the multicriteria key MosKeyTool and then counted. The engorgement status was assessed visually. The physiological status of female Aedes albopictus was determined through ovary dissection and the Detinova method. In order to collect microclimatic data in the close environment of each trap, a Hygro Button data logger was attached to each trap, recording hourly temperature and humidity with an accuracy of ±0.1°C and ±0.1%, respectively, from June to October 2023. The minimum, maximum, and average temperatures, as well as relative humidity, were calculated for the day of collection. Additionally, these values were determined for the 24-hour and 48-hour periods preceding the collection, and for each week up to six weeks before collection. Meteorological data, including temperature, relative humidity, rainfall, and wind speed, were extracted from open-access databases, such as Météo France. These data were aggregated on a weekly basis and calculated for different time lags preceding each collection. A land cover layer was created from open-access databases: roads were sourced from the Copernicus Urban Atlas (2018), vegetation layers from the municipality of Montpellier, and buildings from the National Database of Buildings. The percentage of each land cover class was calculated within buffer zones of 50 and 100 meters around each trap.
Study Extent | Montpellier, a city in southern France with a resident human population of 305 743 inhabitants in 2024, is located in the Occitanie region and has a Mediterranean climate. Based on data from 2000 to 2020, the average annual temperature is 15°C, and the average annual precipitation is 739 mm. The city features more than 10% of vegetated areas within densely urbanized areas and ranks among the top three greenest cities in metropolitan France. The study was conducted in both vegetated areas — two urban parks (Botanical Garden (BOTGARD) and Park of Aiguelongue (AIGUE)) and three residential neighborhoods (Lemasson (LEMAS), Aiguerelles (AIGUER), and Soulas (SOUL)) — as well as in densely built-up (impervious) areas within the city center. These impervious sites included two locations with some vegetation (Saint Charles University (STCH) and Acapulco Hotel (ACA)), and two with little to no vegetation (Buisson Bertrand Institute (BB) and Diderot School (DID)). Ae. albopictus can disperse 75 to 290 meters in urban settings over 8 days. Roads may hinder mosquito movement. This study assumes sealed roads limit mosquito movement between sites. |
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Method step description:
- 2 urban parks, 3 residential areas and 4 sites in city center were selected and entomological collection was realized, as detailed in the Sampling Method Section.
- The collected data were digitized.
- Meteorological variables were collected from Meteo france Synop and the ODEE. A land cover variable was created using data from the Urban Atlas of Copernicus, the layer of vegetation of Montpellier and the national database of buildings. Micro climatic data were also collected as described in the sampling description.
- A R script was realized to clean, collect and analyze all the data.
- Another R script was created to map the original data to Darwin Core as an event core with the relevant extension (occurrence), the engorgement and physiological status (Extented Measurements or facts) and some relevant environmental data (Measurements or facts).
- The Darwin Core files were connected to the French IPT and documented with metadata.
- The data was published and registered with GBIF
Additional Metadata
Alternative Identifiers | https://ipt.gbif.fr/resource?r=entomological_collection_v2moc_project |
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