Academic Journal
The northern hawk owl Surnia ulula invasions in Europe
| العنوان: | The northern hawk owl Surnia ulula invasions in Europe |
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| المؤلفون: | Mikkola Heimo, Rajala Esko, Väli Ülo, Keišs Oskars, Jusys Vytautas, Kwieciński Zbigniew, Dombrovski Valery, Krüger Thorsten, Hušek Jan, Pačenovský Samuel, Kuzmenko Yuriy, Kuzmenko Tatiana |
| المصدر: | Raptor Journal, Vol 17, Iss 1, Pp 1-14 (2023) |
| بيانات النشر: | Sciendo, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Zoology |
| مصطلحات موضوعية: | surnia ulula, winter invasions, ringing results, european countries, Zoology, QL1-991 |
| الوصف: | The northern hawk owl is a real irruptive species that respond to irregular changes in the food supply. When prey levels are adequate, it breeds and winters within northern forests. Decreased prey availability can start winter invasions, the timing and magnitude of which are the subject of this study. Mainly the citizen data were extracted from the national bird websites to obtain data on the number of northern hawk owls observed in 2010–22. This paper demonstrates that through citizen data large amounts of information can be collected over wide areas, entire Europe in this case. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2644-5247 2023-0001 |
| Relation: | https://doaj.org/toc/2644-5247 |
| DOI: | 10.2478/srj-2023-0001 |
| URL الوصول: | https://doaj.org/article/50808667ee2e4b84b5968016f023b76a |
| رقم الانضمام: | edsdoj.50808667ee2e4b84b5968016f023b76a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 26445247 20230001 |
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| DOI: | 10.2478/srj-2023-0001 |