Results 11 to 20 of about 224,810 (178)

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   +3 more sources

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

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

New records and a review of the distribution of the Arctic Tern Sterna paradisaea Pontoppidan, 1763 (Aves: Sternidae) in Brazil [PDF]

open access: yesCheck List, 2012
We report new records of the Arctic Tern Sterna paradisaea Pontoppidan, 1763 for the coast of Rio Grande do Sul, southernmost Brazil. Birds were in first alternate plumage, apparently overwintering in the region.
Rafael Dias   +3 more
doaj   +3 more sources

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

Assessing regional populations of ground-nesting marine birds in the Canadian High Arctic [PDF]

open access: yesPolar Research, 2015
The Queens Channel region of Nunavut is an ecologically distinct area within the Canadian High Arctic consisting of an extensive archipelago of small, low-lying gravel islands throughout which form several localized but highly productive polynyas.
Mark Maftei   +2 more
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

Italian Ornithological Commission (COI) - Report 31

open access: yesAvocetta, 2023
Italian Ornithological Commission (COI) - Report 31. This report refers to records from January 1st 2022 to December 31st 2022, with the addition of a number of records from previous years that were submitted more recently. For each species, the records
Egidio Fulco, Cristiano Liuzzi
doaj   +1 more source

Changes in organ size and nutrient reserves of arctic terns (Sterna paradisaea) breeding near a High Arctic polynya

open access: yesArctic, Antarctic, and Alpine Research, 2020
The arctic tern (Sterna paradisaea) is a ubiquitous migratory seabird of the High Arctic, currently thought to be in decline in most of the circumpolar world, but surprisingly little is known of its biology at high latitudes.
Julia E. Baak   +2 more
doaj   +1 more source

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