Evolution of the breeding bird populations in the Drugeon basin, Franche-Comté, France, based on IPA (1998-2020) ...

• Main Authors: Michelat, Dominique, Giraudoux, Patrick
• Format: Dataset
• Language: French
• Published: Zenodo 2023
• Subjects: Accipiter gentilis; Accipiter nisus; Acrocephalus arundinaceus; Acrocephalus palustris; Acrocephalus scirpaceus; Aegithalos caudatus; Aegolius funereus; Alauda arvensis; Alcedo atthis; Alopochen aegyptiaca; Anas clypeata; Anas crecca; Anas platyrhynchos; Anas querquedula; Anthus pratensis; Anthus trivialis; Apus apus; Aquila pomarina; Ardea alba; Ardea cinerea; Ardea purpurea; Aythya ferina; Aythya fuligula; Bonasa bonasia; Buteo buteo; Acanthis flammea cabaret; Linaria cannabina; Carduelis carduelis; Chloris chloris; Spinus spinus; Carpodacus erythrinus; Certhia brachydactyla; Certhia familiaris; Charadrius dubius; Cinclus cinclus; Circus aeruginosus; Circus cyaneus; Circus pygargus; Coccothraustes coccothraustes; Columba livia; Columba oenas; Columba palumbus; Corvus corax; Corvus corone; Coturnix coturnix; Crex crex; Cuculus canorus; Cygnus olor; Delichon urbicum; Dendrocopos major; Olor
• Online Access: https://dx.doi.org/10.5281/zenodo.7716547; https://zenodo.org/record/7716547

Counts were carried out using the IPA method described in Blondel et al (1970), IBCC (1977) and Blondel et al (1981). According to the protocol, two passes with a twenty-minute data collection per listening point were carried out each year (end of April and beginning of May for early breeders and end of May and beginning of June for late breeders), in the morning, in good weather and no wind. A value of 1 is assigned to a species for any visual or auditory contact with a pair, an occupied nest, a family, an adult carrying food, or a singing male, and a value of 0.5 is assigned to a single non-singing bird. The values per species and per passage are added up to a maximum index of 5. For each listening point, the best index of the two passages was retained for the analysis. Data collection was carried out between 6.30 and 9.00 a.m. during the first pass and between 6.00 and 9.00 a.m. during the second. For more details see Michelat et al. (2023) full reference below. IPA distribution according to years and ... : Data collection, for a fraction, has been supported by DREAL Bourgogne Franche-Comté. ...