Results 31 to 40 of about 69,117 (165)
Brood parasites are expected to lay only one egg per parasitized nest, as the existence of several parasitic nestlings in a brood increases competition and can lead the starvation of some of them.
Manuel Soler +2 more
doaj +1 more source
The use of drones to study the breeding productivity of Whooper Swan Cygnus cygnus
This research was carried out in north-eastern Poland, where Whooper Swan Cygnus cygnus is a sparse breeder. Whooper Swan is timid and exhibits a tendency to hide in emergent vegetation.
A. Sikora, D. Marchowski
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Snake slough in nests of crested mynas: effect on breeding success and nestling growth
The choice of suitable nest materials is a key to nest-building process in birds. During the breeding season (March-August) in 2018 and 2019, we discovered that crested mynas (Acridotheres cristatellus) added snake slough (2–18.3 cm in length) to their ...
J. Liu, J. Liu, W. Liang
doaj +1 more source
Temperate–tropical comparisons of avian life history traits are helpful to understand the different selective pressures placed on birds by different climate zones.
Li Tian +5 more
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We conducted our study in the Common Tern colony (STH) located on an island in the middle Vistula River course, at the height of the city of Dęblin (km 393–394 of the waterway), in 2017.
Dariusz Bukackiński +2 more
doaj +1 more source
Since the open-ocean subpolar Atlantic is amongst the most predictable regions in the world, our results hold promise for predicting the general production to seabird populations over a large geographical region adjacent to the northern North Atlantic ...
Hjálmar Hátún +3 more
doaj +1 more source
Sex‐Dependent Carry‐Over Effects Between Physiological State and Reproduction in a Passerine Species
Carry‐over effects (COEs) occur when an event in a life stage of an individual is affected by the experience, physiological state or reproduction of a previous life stage.
G. Szabó +14 more
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Wild animal species often use human‐modified environments for foraging and reproduction, but this may require dietary diversification with fitness consequences.
Simon F. Allen +11 more
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Relative breeding timing and reproductive success of a resident montane bird species
Wild populations appear to synchronize their reproductive phenology based on numerous environmental and ecological factors; yet, there is still individual variation in the timing of reproduction within populations and such variation may be associated ...
Lauren E. Whitenack +7 more
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The impact of disturbance from photographers on the Blue-crowned Laughingthrush (Garrulax courtoisi)
Human disturbance may cause significant declines in animal populations. The Blue-crowned Laughingthrush (Garrulax courtoisi) is critically endangered and restricted to a small area in Wuyuan, Jiangxi Province, China. Disturbance from photographers in the
Weiwei Zhang +3 more
doaj +1 more source

