Conservation Status of Breeding Eagles in France

Autor: Hugo Pontalier, Patrick Boudarel, Marie-Françoise Canevet, Edouard Lhomer, Dominique Michelat, Cécile Ponchon, Christian Riols, Olivier Scher

Publikováno v: Пернатые хищники и их охрана, Vol 0, Iss 38, Pp 93-108 (2019)

Seven species of eagle breed in France: Golden Eagle (Aquila chrysaetos), Lesser Spotted Eagle (Aquila pomarina), Bonelli’s Eagle (Aquila fasciata), Booted Eagle (Hieraaetus pennatus), Short-toed Eagle (Circaetus gallicus), Osprey (Pandion haliaetu

Externí odkaz: https://doaj.org/article/0b250c54188d4a22a54ea991238fbefc

A female melanin ornament signals offspring fluctuating asymmetry in the barn owl

Autor: Francois Balloux, Alexandre Roulin, Anne–Lyse Ducrest, Cor Dijkstra, Christian Riols

Publikováno v: Proceedings of the Royal Society of London. Series B, Biological Sciences, 270(1511), 167-171. ROYAL SOC
Proceedings of the Royal Society of London B Biological Sciences, vol. 270, no. 1511, pp. 167-171

Sexual selection theory predicts that males advertise quality by displaying extravagant ornaments. By contrast, whether phenotypic variation in females has a signalling function remains an open question. Here, to our knowledge, we provide the first e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2d5d852ea24fe86818948aefb93b4d9
https://doi.org/10.1098/rspb.2002.2215

Female plumage spottiness signals parasite resistance in the barn owl (Tyto alba)

Autor: Cor Dijkstra, Alexandre Roulin, Christian Riols, Anne-Lyse Ducrest

Publikováno v: Roulin, Alexandre; Riols, Christian; Dijkstra, Cor; Ducrest, Anne-Lyse (2001). Female plumage spottiness signals parasite resistance in the barn owl (Tyto alba). Behavioral Ecology, 12(1), pp. 103-110. Oxford University Press 10.1093/oxfordjournals.beheco.a000371
Behavioral Ecology, 12(1), 103-110. Oxford University Press

The hypothesis that extravagant ornaments signal parasite resistance has received support in several species for ornamented males but more rarely for ornamented females. However, recent theories have proposed that females should often be under sexual

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1543bc98ecff91791275a9660ea49bbe
https://boris.unibe.ch/115750/