Results 11 to 20 of about 258 (102)

Diet dichotomy between two migrant seabirds breeding near a high Arctic polynya [PDF]

open access: yesRoyal Society Open Science, 2017
High Arctic polynyas are predictable areas of open water, which offer long-distance migrant seabirds a reliable source of food during a period when they have to replenish and accumulate energy for reproduction.
Isabeau Pratte   +4 more
doaj   +1 more source

Foraging Behaviours of Breeding Arctic Terns Sterna paradisaea and the Impact of Local Weather and Fisheries

open access: yesFrontiers in Marine Science, 2022
During the breeding season, seabirds are central place foragers and in order to successfully rear chicks they must adjust their foraging behaviours to compensate for extrinsic factors.
Joanne M. Morten   +9 more
doaj   +1 more source

Primer registro continental de Gaviotín Ártico (Sterna paradisaea) en Argentina: evidencia de su cruce del Océano Pacífico al Atlántico

open access: yesEl Hornero, 2017
En este trabajo se presenta el primer registro continental para Argentina del Gaviotín Ártico (Sterna paradisaea), realizado en una laguna de la localidad de Santo Domingo, provincia de Neuquén, en octubre de 2015.
Mauro Bianchini, Gonzalo González C.
doaj   +1 more source

Pair bonds during the annual cycle of a long-distance migrant, the Arctic Tern (Sterna paradisaea)

open access: yesAvian Research, 2021
Background The extent to which pairs remain together during the annual cycle is a key question in the behavioural ecology of migratory birds. While a few species migrate and winter as family units, for most the extent to which breeding partners associate
Chris P. F. Redfern
doaj   +1 more source

Adult survival of Arctic terns in the Canadian High Arctic

open access: yesPolar Research, 2018
Arctic tern (Sterna paradisaea) populations are thought to be in decline across much of their range. For long-lived seabirds, determining adult survival rates is key to understanding current population trends and predicting trajectories.
Mark L. Mallory   +4 more
doaj   +1 more source

Attendance of scavenging seabirds at trawler discards off Galicia, Spain

open access: yesScientia Marina, 2003
The occurrence of scavenger seabirds at fishing trawlers was studied off Galicia, Spain. A total of 9,368 seabirds of 23 species were recorded during 92 fishing operations in 1998 and 1999.
Julio Valeiras
doaj   +1 more source

Variation in Population Synchrony in a Multi-Species Seabird Community: Response to Changes in Predator Abundance. [PDF]

open access: yesPLoS ONE, 2015
Ecologically similar sympatric species, subject to typical environmental conditions, may be expected to exhibit synchronous temporal fluctuations in demographic parameters, while populations of dissimilar species might be expected to show less synchrony.
Gail S Robertson   +3 more
doaj   +1 more source

Reactions of ground-nesting marine birds to human disturbance in the Canadian Arctic

open access: yesArctic Science, 2016
I studied the reactions of five ground-nesting marine bird species (Arctic tern (Sterna paradisaea), Sabine’s gull (Xema sabini), common eider (Somateria mollissima), long-tailed duck (Clangula hyemalis), and Ross’ gull (Rhodostethia rosea)) breeding in ...
Mark L. Mallory
doaj   +1 more source

Diversity and abundance of water birds in a subarctic lake during three decades

open access: yesFauna Norvegica, 2013
The numbers of divers, ducks, gulls, terns and waders in the 15 km2 oligotrophic lake Takvatn, North Norway were estimated six times during 1983-2012. Systematic mapping surveys were done by boat within the first week after ice-break in June.
Anders Klemetsen, Rune Knudsen
doaj   +1 more source

Postbreeding dispersal and staging of Common and Arctic Terns throughout the western North Atlantic

open access: yesAvian Conservation and Ecology, 2017
In the western North Atlantic, Common (Sterna hirundo) and Arctic (S. paradisaea) Terns are sympatric at breeding colonies but show divergent migration strategies to coastal areas of South America and pelagic regions of the Antarctic, respectively ...
Pamela H. Loring   +4 more
doaj   +1 more source

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