Concentrations of Morphological Anomalies in Birds and Possible Causes: The Example of the Jackdaw (Corvus monedula, Passeriformes, Corvidae)

Авторы: Malovichko L.V., Koblik E.A., Glazko V.I., Matyukhin A.V.
Журнал: Biology Bulletin
Том: 50
Номер: 8
Год издания: 2023
Издательство: M A I K Nauka - Interperiodica
Местоположение издательства: Russian Federation
Первая страница: 286
Последняя страница: 297
DOI: 10.1134/S1062359023080150
Аннотация: An analysis of the morphological aberrations spread across synanthropic jackdaw populations inthe European part of the Russian Federation was carried out. Altogether, 78 individuals with anomalies in thestructure of the beak, which, in turn, led to aberrations in the feeding behavior, were identified at eight localities. Individuals were revealed that showed various kinds of beak deformations or had missing legs or fingersor expressed alopecia and/or color aberrations (leucism and pheomelanism). In some cases, individuals withtwo or more anomalies were observed. The presence of birds with such anomalies at different localities wasdescribed. Most carriers of beak anomalies were observed in Kaluga. Such defects spreading are assumed tobe due to a number of reasons: infection by poecivirus, ecotoxins at a specific locality, and/or inbred depression in closed populations. These variants share one thing: a suppressed immune system associated with theecological conditions of bird habitats.
Добавил в систему: Коблик Евгений Александрович

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