Back অনিয়মিত (জীববিজ্ঞান) Bengali/Bangla Divagant (biologia) Catalan گەڕیدەیی (ژینناسی) CKB Zbloudění Czech Irrgast German Vaganteco (biologio) Esperanto Vagabundeo (biología) Spanish سرگردان (زیستشناسی) Persian Harhailija Finnish Espèce erratique French
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Vagrancy is a phenomenon in biology whereby an individual animal (usually a bird) appears well outside its normal range;[1] they are known as vagrants. The term accidental is sometimes also used. There are a number of poorly understood factors which might cause an animal to become a vagrant, including internal causes such as navigatory errors (endogenous vagrancy) and external causes such as severe weather (exogenous vagrancy).[2] Vagrancy events may lead to colonisation and eventually to speciation.[3]
- ^ Ralph, C. John; Wolfe, Jared D. (2018-12-21). "Factors affecting the distribution and abundance of autumn vagrant New World warblers in northwestern California and southern Oregon". PeerJ. 6: e5881. doi:10.7717/peerj.5881. ISSN 2167-8359. PMC 6305120. PMID 30595974.
- ^ "Vagrancy in Birds".
- ^ Lees, Alexander C.; Gilroy, James J. (2013-11-12). "Vagrancy fails to predict colonization of oceanic islands". Global Ecology and Biogeography. 6 (4): 405–413. doi:10.1111/geb.12129. ISSN 1466-8238.