The precipitous decline of the ortolan bunting Emberiza hortulana: Time to build on scientific evidence to inform conservation management
MetadataShow full item record
In recent decades there has been a marked decline in most ortolan bunting Emberiza hortulana populations in temperate Europe, with many regional populations now extinct or on the brink of extinction. In contrast, Mediterranean and, as far as we know, eastern European popula-tions seem to have remained relatively stable. The causes of decline remain unclear but include: habitat loss and degradation, and related reduction in prey availability; climate change on the breeding grounds; altered population dynamics; illegal captures during migration; and environmental change in wintering areas. We review the current knowledge of the biology of the ortolan bunting and discuss the proposed causes of decline in relation to the different population trends in temperate and Mediterranean Europe. We suggest new avenues of research to identify the factors limiting ortolan bunting populations. The main evidence-based conservation measure that is likely to enhance habitat quality is the creation of patches of bare ground to produce sparsely vegetated foraging grounds in invertebrate-rich grassy habitats close to breeding areas. © 2012 Fauna & Flora Internationa.
Showing items related by title, author, creator and subject.
Village-Based Marine Resource Use and Rural Livelihoods:Kimbe Bay, West New Britain, Papua New GuineaKoczberski, Gina; Curry, George; Warku, J.; Kwam, C. (2006)This report presents the findings of a socio-economic study conducted in six coastal villages in Kimbe Bay, West New Britain Province, Papua New Guinea. From west to east around the Bay the study villages were Kulungi, ...
Identifying conservation units after large-scale land clearing: a spatio-temporal molecular survey of endangered white-tailed black cockatoos (Calyptorhynchus spp.)White, Nicole; Bunce, Michael; Mawson, P.; Dawson, R.; Saunders, D.; Allentoft, M. (2014)Aim: We examined how the threatened and endemic white-tailed black cockatoos of Western Australia have responded genetically to recent and comprehensive habitat loss with the ultimate aim of identifying units for conservation. ...
Population ecology of the endangered aquatic carnivorous macrophyte Aldrovanda vesiculosa at a naturalised site in North AmericaCross, A.; Skates, L.; Adamec, L.; Hammond, C.; Sheridan, P.; Dixon, Kingsley (2015)Aldrovanda vesiculosa is an aquatic carnivorous plant native to nutrient impoverished wetland systems in Australia, Africa, Asia, and continental Europe that has declined dramatically throughout its native range in the ...