Publications by authors named "Ramona Julia Heim"
Migratory animals rely on multiple sites during their annual cycles. Deteriorating conditions at any site can have population-level consequences, with long-distance migrants seen as especially susceptible to such changes. Reduced adult survival caused by persecution at non-breeding sites has been suggested a major reason for the catastrophic decline of a formerly abundant, long-distance migratory songbird, the Yellow-breasted Bunting Emberiza aureola.
View Article and Find Full Text PDFArtificial nest sites can support populations of endangered species when they are correctly installed. Here we analysed the characteristics and conditions that determined whether the northern house martin occupied more than 300 artificial nests around the city of Münster, Germany. We found that artificial nest occupation rates were influenced by various environmental and temporal factors.
View Article and Find Full Text PDFArticle Synopsis
- Understanding the ecology of the yellow-throated bunting is essential for its conservation, and this study provides insights based on a multi-year investigation in the Russian Far East.
- The study quantified breeding habitat characteristics, revealed a 36% apparent survival rate with males faring better than females, and utilized light-level geolocation to track their nonbreeding migration to locations in China.
- Findings indicate that the bunting's habitat overlaps with other species but differs in tree and litter cover, highlighting potential threats like habitat loss from forest fires and unsustainable hunting practices.