Transdisciplinary Bioblitz: Rapid biotic and abiotic inventory allows studying environmental changes over 60 years at the Biological Field Station of Paimpont (Brittany, France) and opens new interdisciplinary research opportunities
Authors: Nicolai Annegret , Guernion Muriel , Guillocheau Sarah , Hoeffner Kevin , Le Gouar Pascaline , Ménard Nelly , Piscart Christophe , Vallet Dominique , Hervé Morgane , Benezeth Elora , Chedanne Hughes , Blémus Jérémie , Vernon Philippe , Cylly Daniel , Hotte Hoël , Loïs Grégoire , Mai Barbara , Perez Grégoire , Ouisse Tiphaine , Monard Cécile , Wiegand Claudia , Caudal Jean-Pierre , Butet Alain , Dahirel Maxime , Barbe Lou , Balbi Manon , Briand Valérie , Bormans Myriam , Charrier Maryvonne , Bouger Guillaume , Jung Vincent , Le Lann Cécile , Pannard Alexandrine , Petillon Julien , Rantier Yann , Marguerie Dominique , Tougeron Kevin , Devogel Pierre , Dugravot Sébastien , Dubos Thomas , Garrin Maël , Carnet Mathurin , Gouraud Clément , Chambet Audrey , Esnault Joël , Poupelin Maxime , Welk Erik , Bütof Astrid , Dubois Glenn , Humbert Guillaume , Marie-Réau Odile , Norvez Olivier , Richard Gaëlle , Froger Benoît , Rochais Céline , Potthoff Martin , Ayati Khaoula , Bellido Alain , Rissel Alain , Santonja Mathieu , Farcy Jacques-Olivier , Collias Eric , Sene Lina , Cluzeau Daniel , Supper Régis 
Published: March 2020

The Biological Field Station of Paimpont (Station Biologique de Paimpont, SBP), owned by the University of Rennes and located in the Brocéliande Forest of Brittany (France), has been hosting student scientific research and field trips during the last 60 years. The study area of the SBP is a landscape mosaic of 17 ha composed of gorse moors, forests, prairies, ponds and creeks. Land use has evolved over time. Historical surveys by students and researchers focused on insects and birds. With this study, we aimed to increase the range of taxa observations, document changes in species composition and landscape and provide a basis for interdisciplinary research perspectives. We gathered historical data, implemented an all-taxon biodiversity inventory (ATBI) in different habitats of the SBP study area, measured abiotic factors in the air, water and soil and performed a photographical landscape observation during the BioBlitz held in July 2017.

During the 24 h BioBlitz, organised by the SBP and the EcoBio lab from the University of Rennes and the French National Center of Scientific Research (CNRS), different habitats were individually sampled. Seventy-seven experts, accompanied by 120 citizens and 12 young people participating in the European Volunteer Service, observed, identified and databased 660 species covering 5 kingdoms, 8 phyla, 21 classes, 90 orders and 247 families. In total, there were 1819 occurrences including records identified to higher taxon ranks, thereby adding one more kingdom and four more phyla. Historical data collection resulted in 1176 species and 4270 occurrences databased. We also recorded 13 climatic parameters, 10 soil parameters and 18 water parameters during the BioBlitz. Current habitats were mapped and socio-ecological landscape changes were assessed with a diachronic approach using 32 historical photographs and historical maps. The coupling of historical biodiversity data with new biotic and abiotic data and a photographic comparison of landscape changes allows an integrative understanding of how the SBP changed from agriculturally-used land to a managed natural area within the last 60 years. Hence, this BioBlitz represents an important holistic sampling of biodiversity for studies on trophic webs or on trophic interactions or on very diverse, but connected, habitats. The integration of social, biotic and abiotic data opens innovative research opportunities on the evolution of socio-ecosystems and landscapes.