Data of type chemistry measured on La Loire basin within the framework of the VAL D'ORLEANS observatory, that is part of the KARST observatory network. The KARST observatory network aims to strengthen knowledge-sharing and to promote cross-disciplinary research on karst systems, in the framework of the OZCAR Critical Zone network Research Infrastructure. Data consist in 26 time series on 2 station(s). The measured parameters are: Ammonium (mg/L), Bicarbonate (mg/L), Calcium (Ca) - Major ion (mg/L), Chloride (Cl) (mg/L), Delta-H-2 (‰ SMOW), Delta-O-18 (‰ SMOW), Magnesium (Mg) - Major ion (mg/L), Nitrate (mg/L), Nitrite (mg/L), Potassium (K) - Major ion (mg/L), Silica (SiO2) (mg/L), Sodium (Na) - Major ion (mg/L), Sulfate (mg/L), Suspended solids (mg/L). Measurements start on 13-10-1979 and end on 17-06-2019

Data from the 'Monitoring of forest plots under management and free evolution in the Aigoual forest' Observing Task, part of the Mediterranean forest ecosystem observatory (FORET) Observation Service of the Montpellier Research Observatory of Environment (OSU OREME, oreme.org).

Data from the 'Monitoring pollination in the Mediterranean region' (POLLIMED): Monitoring pollination in the Mediterranean region. This observatory is part of the Montpellier Research Observatory of Environment (OSU OREME, oreme.org). It consists in different observing tasks: Communities of pollinating insects ; Olive tree pollination ; Plant-pollinator chemical communication ; Pollen-vegetation-climate relationships ; Vine pollination.

Data from the 'Monitoring of microphytoplankton diversity at sea off Sète' (PHYTOBS-SETE): Monitoring of microphytoplankton diversity at sea off Sète. This observatory is part of the Montpellier Research Observatory of Environment (OSU OREME, oreme.org). It is labelized in the framework of IR ICOS-France, SNO PHYTOBS.

Data from the 'Dispersion and operation of subdivided populations: Black-headed Gull model' Observing Task, part of the Population ecology observatory (ECOPOP) Observation Service of the Montpellier Research Observatory of Environment (OSU OREME, oreme.org).

Data from the 'Vegetation dynamics and climate change' Observing Task, part of the Plant communities observatory (OCOVE) Observation Service of the Montpellier Research Observatory of Environment (OSU OREME, oreme.org).

Data from the 'Hydrogeophysics in drilling observatory' (FORAGE): In-situ study of subsurface dynamics using multi-parameter and multi-method drilling observations: imaging and temporal monitoring of geophysical, hydrogeological and hydrogeochemical parameters.. This observatory is part of the Montpellier Research Observatory of Environment (OSU OREME, oreme.org).

Data from the 'Animal communities observatory' (OCOA): Observation of animal communities (birds, reptiles, amphibians, coprophages, ...): standardized periodic surveys and georeferenced in Languedoc-Roussillon.. This observatory is part of the Montpellier Research Observatory of Environment (OSU OREME, oreme.org). It consists in different observing tasks: Beetles ; Bird communities ; Freshwater molluscs communities ; Lez biodiversity ; Reptiles and amphibians ; Temporary water points.

Data from the 'Population evolution observatory' (EVOPOP): Monitoring the evolution of animal and plant populations: genetic evolution, demographic, anthropization, .... This observatory is part of the Montpellier Research Observatory of Environment (OSU OREME, oreme.org). It consists in different observing tasks: Brassica insularis ; Clape Centauree ; Common trout ; Insecticide resistance of Culex pipiens ; Wild vine.

Data from the 'Montpellier University Pollen Atlas (MUPA)' (POLLEN): Collection of reference pollen slides hosted at the Institute of Sciences of Evolution (ISEM, UM): identification of slides and taxa and photos under the microscope..