Results 31 to 40 of about 69,117 (165)

Multiparasitism and repeated parasitism by the great spotted cuckoo Clamator glandarius on its main host, the magpie Pica pica: effects on reproductive success, nest desertion and nest predation

open access: yesJournal of Avian Biology, 2023
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

open access: yesThe European Zoological Journal, 2023
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
doaj   +1 more source

Snake slough in nests of crested mynas: effect on breeding success and nestling growth

open access: yesThe European Zoological Journal, 2021
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

Reproductive Success of a Tropical Barn Swallow Hirundo rustica Population Is Lower Than That in Temperate Regions

open access: yesAnimals, 2022
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
doaj   +1 more source

Does the vicinity of the Black-Headed Gull colony (Chroicocephalus ridibundus) increase the breeding success of the Common Tern (Sterna hirundo) on the islands of the middle Vistula?

open access: yesStudia Ecologiae et Bioethicae, 2018
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

The Dynamics of the North Atlantic Subpolar Gyre Introduces Predictability to the Breeding Success of Kittiwakes

open access: yesFrontiers in Marine Science, 2017
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

open access: yesEcology and Evolution
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
doaj   +1 more source

Predominantly Terrestrial Foraging and Reproductive Gains From a High Trophic Level Diet in Roof‐Nesting Herring Gulls (Larus argentatus)

open access: yesEcology and Evolution
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
doaj   +1 more source

Relative breeding timing and reproductive success of a resident montane bird species

open access: yesRoyal Society Open Science
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
doaj   +1 more source

The impact of disturbance from photographers on the Blue-crowned Laughingthrush (Garrulax courtoisi)

open access: yesAvian Conservation and Ecology, 2017
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

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