Avifauna
Within the framework of your projects, we carry out onshore or offshore surveys and monitoring with associated mapping:
– Breeding birds, by IPA, STOC EPS, Transects, Quadras
– Migrators, static counts
– Wintering birds, count by transects
In addition, we develop collision risk models in the context of wind farm projects where one or more species are at stake.
Finally, we develop detailed analyses to quantify the impact of the barrier effect on avifauna or chiropterans, particularly in the context of the development of wind farm projects.
Chiropterans
Our experts analyse the composition of chiropteran populations and the way they occupy their territory over the course of their ecological cycle. Within the framework of the projects, we mobilise a large fleet of equipment which allows us to exceed the usual standards in terms of sampling:
– SM2 Bat
– Petterson D240X
– EM3…
Depending on the problem, we implement protocols for studying activity according to distance from the edge of the forest or for calculating the risk of collision in the event of flanging.
In the context of wind projects, being qualified to work at height, we equip measuring masts with customised recorders in order to work autonomously over a complete season.
Mammals
Reading tracks, searching for hidden clues, setting photo traps, the study of mammals requires patience and know-how. Indeed, these nocturnal species are often discreet and difficult to observe.
Reptiles
Reptiles are protected for almost all species and require the use of simple but specific inventory methods, such as the use of artificial insolation plates, for their study.
Insects
Calidris carries out “insect” surveys on the different taxonomic groups:
– Butterflies
– Dragonflies
– Orthopterans
Standard methodologies and mapping allow for the proper consideration of these groups for optimal legal security.
Amphibians
Amphibians are mainly active in the spring during their reproduction phase.
During this period we observe adults, eggs and larvae.
Outside of the favourable period, animals in the terrestrial phase are more difficult to contact.
The search then focuses on favourable breeding habitats and terrestrial breeding sites (under stumps, etc.)
Flore / habitat / wetlands
Les amphibiens sont principalement actifs au printemps pendant leur phase de reproduction.
Durant cette période, on observe des adultes, des œufs et des larves.
En dehors de la période favorable, les animaux en phase terrestre sont plus difficiles à contacter.
La recherche se concentre alors sur les habitats de reproduction favorables et les sites de reproduction terrestres (sous les souches, etc.).
