Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Great Crested Grebe (Podiceps cristatus) synchronizes the beginning of incubation with a protecting species. / Zainagutdinova, Elmira ; Mikhailov, Yuriy .
в: Biological Communications, Том 64, № 1, 03.06.2019, стр. 11-19.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Great Crested Grebe (Podiceps cristatus) synchronizes the beginning of incubation with a protecting species.
AU - Zainagutdinova, Elmira
AU - Mikhailov, Yuriy
PY - 2019/6/3
Y1 - 2019/6/3
N2 - Great crested grebes (Podiceps cristatus) are opportunistic breeders nesting in colonies or solitarily in different biotopes with varying nesting dates in different circumstances. On the northern coast of the Neva Bay in the eastern part of the Gulf of Finland, great crested grebes breed solitarily, in colonies situated in reed beds and in a colony on the open water in direct vicinity of a colony of black-headed gulls (Larus ridibundus) and black terns (Chlidonias niger). In the vicinity of the larid colony, grebes profit from the protecting behaviour of gulls and terns in a similar way as they do in their mixed colonies with larids. Despite the fact that small larids have a shorter incubation period than great crested grebes, the latter synchronize their beginning of incubation with the gulls and terns. The incubation of all three species in two adjoining open-water colonies started on the same dates. The incubation of grebes nesting in the reed beds began significantly later. The average clutch sizes did not differ significantly between the colonies situated on the open water near larids and those in the reeds. The average lowest distances between the nests of great crested grebes in the open water colony were larger than in the reed bed colonies. The ability to synchronize the beginning of incubation with a small protecting species helps great crested grebes to occupy otherwise unsafe habitats.
AB - Great crested grebes (Podiceps cristatus) are opportunistic breeders nesting in colonies or solitarily in different biotopes with varying nesting dates in different circumstances. On the northern coast of the Neva Bay in the eastern part of the Gulf of Finland, great crested grebes breed solitarily, in colonies situated in reed beds and in a colony on the open water in direct vicinity of a colony of black-headed gulls (Larus ridibundus) and black terns (Chlidonias niger). In the vicinity of the larid colony, grebes profit from the protecting behaviour of gulls and terns in a similar way as they do in their mixed colonies with larids. Despite the fact that small larids have a shorter incubation period than great crested grebes, the latter synchronize their beginning of incubation with the gulls and terns. The incubation of all three species in two adjoining open-water colonies started on the same dates. The incubation of grebes nesting in the reed beds began significantly later. The average clutch sizes did not differ significantly between the colonies situated on the open water near larids and those in the reeds. The average lowest distances between the nests of great crested grebes in the open water colony were larger than in the reed bed colonies. The ability to synchronize the beginning of incubation with a small protecting species helps great crested grebes to occupy otherwise unsafe habitats.
KW - водоплавающие птицы
KW - величина кладки
KW - расстояние между гнездами
KW - сроки гнездования
KW - озерная чайка
KW - черная крачка
KW - Black tern
KW - Black-headed gull
KW - Clutch size
KW - Distance between nests
KW - Nesting dates
KW - Protective nesting associations
KW - Reed
KW - Waterfowl
UR - http://www.scopus.com/inward/record.url?scp=85066478785&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/great-crested-grebe-podiceps-cristatus-synchronizes-beginning-incubation-protecting-species
U2 - 10.21638/spbu03.2019.102
DO - 10.21638/spbu03.2019.102
M3 - Article
VL - 64
SP - 11
EP - 19
JO - Biological Communications
JF - Biological Communications
SN - 2542-2154
IS - 1
ER -
ID: 39876879