Results 11 to 20 of about 536 (178)

Patterns in tern trophic diversity in a region experiencing rapid climate change

Ecosphere
Foraging plasticity provides a mechanism for long‐lived species to adapt to rapidly changing environments. When shifts in food availability occur, individual variation in plasticity can lead to an increase in within‐species trophic diversity.
Natasha J. Gownaris, Linda J. Welch, Jill E. Tengeres   +2 more
doaj   +2 more sources

Upwind or downwind: the spring arrival of Arctic TernsSterna paradisaeaat Troms, north Norway [PDF]

Ringing & Migration, 2016
This study was funded by Tromso University Museum. I also thank members of the local branch of the Norwegian Ornithological Society and members of the public who reported arrival dates to me or to www.artsobservasjoner.no. Without them this study would have been impossible.
Barrett, Robert T.
openaire   +3 more sources

Physiological characteristics of arctic tern Sterna paradisaea chicks in relation to egg volume

Polar Research, 1997
The effect of egg volume on body mass, body composition and growth rate in Arctic tern Sterna paradisaea chicks was studied at Ny-Alesund, on Svalbard (78°55'N, 12°00'E), in order to investigate whether differences in egg size influence the physiological characteristics of the hatchlings. The relative content of yolk and albumen in eggs did not vary in
Jan Eivind Østnes, Chris Jensen, Joachim Ostheim, Claus Bech   +3 more
openaire   +2 more sources

Emergence, spread, and impact of high-pathogenicity avian influenza H5 in wild birds and mammals of South America and Antarctica. [PDF]

Conserv Biol
Abstract The currently circulating high‐pathogenicity avian influenza (HPAI) virus of the subtype H5 causes variable illness and death in wild and domestic birds and mammals, as well as in humans. This virus evolved from the Goose/Guangdong lineage of the HPAI H5 virus, which emerged in commercial poultry in China in 1996, spilled over into wild birds,
Kuiken T, Vanstreels RET, Banyard A, Begeman L, Breed AC, Dewar M, Fijn R, Serafini PP, Uhart M, Wille M.   +9 more
europepmc   +2 more sources

Variation in migration behaviors used by Arctic Terns (Sterna paradisaea) breeding across a wide latitudinal gradient [PDF]

, 2022
Variation in migration behaviors used by Arctic Terns (Sterna paradisaea) breeding across a wide latitudinal ...
ML Mallory (16168883), S Lisovski (14067192), M Maftei (13346697), RT Alisauskas (18768067), A Nagy-MacArthur (13346700), AL Harrison (14452398), RA Ronconi (16337424), JB Wong (17096428), W English (13346688), DK Kellett (18768070), M Auger-Méthé (13346712), PA Smith (9850814)   +11 more
core   +2 more sources

Een onderzoek naar verschillen in fourageeractiviteit tussen Visdief Sterna hirundo en Noordse Stern Sterna paradisaea op de Engelsmanplaat (NL)

, 1976
The foraging activity of Common Tern Sterna hirundo and Arctic Tern Sterna paradisaea was studied on the low sandy island of Engelsmanplaat in the Dutch Waddensea area (53°28’N – 06°30’E). The foraging activity was measured by counting birds carrying food to the colony and birds flying towards the colony but not carrying food.
Ron Mes, Rob Schuckard
openaire   +2 more sources

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

PLoS 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, Mark Bolton, Paul Morrison, Pat Monaghan   +3 more
doaj   +1 more source

Adult survival of Arctic terns in the Canadian High Arctic

Polar 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, Shanti E. Davis, Mark Maftei, Danielle T. Fife, Gregory J. Robertson   +4 more
doaj   +1 more source

Citizen science reveals host-switching in louse flies and keds (Diptera: Hippoboscidae) during a period of anthropogenic change. [PDF]

Med Vet Entomol
A study of louse flies in the United Kingdom, Isle of Man, and Ireland found 212 different interactions between Hippoboscidae and their hosts, of which 70 were previously unrecorded. No louse flies were found on aquatic species of birds. Host‐switching to gulls (Laridae) has occurred during a period in which these species have started relying on ...
Wawman DC, Smith AL, Sheldon BC.
europepmc   +2 more sources

Attendance of scavenging seabirds at trawler discards off Galicia, Spain

Scientia 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