Results 21 to 30 of about 4,872 (156)

Closely related gull species show contrasting foraging strategies in an urban environment

open access: yesScientific Reports, 2021
The expansion of urban landscapes has both negative and positive effects on wildlife. Understanding how different species respond to urbanization is key to assessing how urban landscapes influence regional wildlife behavior and ecosystem structure. Gulls
K. A. Lato   +3 more
doaj   +1 more source

Does Population Size Drive Changes in Transatlantic Vagrancy for Gulls? A Study of Seven North Atlantic Species

open access: yesFrontiers in Ecology and Evolution, 2022
European gulls Chroicocephalus ridibundus, Larus canus, and L. graellsii have dispersed to North America and C. ridibundus and L. graellsii have bred or attempted to breed. North American gulls L. delawarensis, Leucophaeus atricilla, Leucophaeus pipixcan,
Marlen Acosta Alamo   +5 more
doaj   +1 more source

The Richness of Sarcocystis Species in the Common Gull (Larus canus) and Black-Headed Gull (Larus ridibundus) from Lithuania

open access: yesParasitologia, 2023
The common gull (Larus canus) and the black-headed gull (Larus ridibundus) are common waterbird species in Lithuania. Until now, the composition of Sarcocystis species in these birds was unknown. The current study aimed to identify Sarcocystis spp.
Evelina Juozaitytė-Ngugu, Petras Prakas
doaj   +1 more source

Intercolony variation in foraging flight characteristics of black‐headed gulls Chroicocephalus ridibundus during the incubation period

open access: yesEcology and Evolution, 2020
Using GPS loggers, we examined the influence of colony, sex, and bird identity on foraging flight characteristics of black‐headed gulls Chroicocephalus ridibundus during the incubation period. We studied tracks of 36 individuals breeding in one urban and
Dariusz Jakubas   +4 more
doaj   +1 more source

Foraging movements of breeding Kelp Gulls in South Africa

open access: yesMovement Ecology, 2020
Background Kelp Gulls Larus dominicanus are one of the most abundant gulls in the Southern Hemisphere and can play an important role in their ecosystem.
Katharina Reusch   +3 more
doaj   +1 more source

Adapting Strategies to Maintain Efficiency During a Cull of Yellow-Legged Gulls

open access: yesHuman-Wildlife Interactions, 2017
Increasing populations of yellow-legged gulls (Larus michahellis) in the Mediterranean have created conflicts with seabird conservation, migrating raptors, and humans. As a mitigation measure, gulls are routinely culled in the region. Previous studies of
Sugoto Roy   +5 more
doaj   +1 more source

Breeding in a den of thieves: pros and cons of nesting close to egg predators

open access: yesEcosphere, 2016
Breeding success of many Arctic‐breeding bird populations varies with lemming cycles due to prey switching behavior of generalist predators. Several bird species breed on islands to escape from generalist predators like Arctic fox Vulpes lagopus, but ...
Jimmy deFouw   +8 more
doaj   +1 more source

Microplastics in Seabird Feces from Coastal Areas of Central Chile

open access: yesAnimals, 2023
Pollution from plastic waste thrown into the ocean affects all levels of the food chain. Marine species of birds are affected by plastic particles of different sizes, especially the mesoplastics (1 to 10 mm) found in their digestive tract, which mainly ...
Sebastian Mendez-Sanhueza   +6 more
doaj   +1 more source

Influenza A viruses in gulls in landfills and freshwater habitats in Minnesota, United States

open access: yesFrontiers in Genetics, 2023
Introduction: The unpredictable evolution of avian influenza viruses (AIVs) presents an ongoing threat to agricultural production and public and wildlife health.
Elizabeth A. Rasmussen   +6 more
doaj   +1 more source

The impact of non–local birds on yellow–legged gulls (Larus michahellis) in the Bay of Biscay: a dump–based assessment [PDF]

open access: yesAnimal Biodiversity and Conservation, 2014
Understanding how animals exploit non–natural feeding sources such as garbage dumps is necessary from many perspectives, including conservation, and population dynamics and management.
Jordi, O.   +4 more
doaj  

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