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SEAPOP studies in the Barents and Norwegian Seas in 2007
(Research report; Forskningsrapport, 2008-04)
This is the third annual report of the SEAPOP programme, which was initiated in 2005. In 2007, the work continued at full scale in the Lofoten-Barents Sea area, and similar studies were initiated in the southern part of the Norwegian Sea. The report is divided into three sections. The first is an executive summary, the second presents five selected highlights from the studies in 2007, whereas the ...
Levedyktighetsanalyser for norske lomvibestander
(Research report; Forskningsrapport, 2007-03)
Hekkebestandene av lomvi (Uria aalge) langs norskekysten har hatt en sterk nedgang i løpet
av de siste 45 årene. Den norske fastlandsbestanden utgjør i dag ikke mer enn ca 15 000 par,
mens den til sammenligning ble beregnet til 120-160 000 par i begynnelsen av 1960-årene.
Den største bestanden i norske områder finnes i dag på Bjørnøya hvor det hekker ca 100 000
par, men også her er bestanden ...
SEAPOP. Et nasjonalt sjøfuglprogram for styrket beslutningsstøtte i marine områder
(Research report; Forskningsrapport, 2005-01)
SEAPOP (Seabird population management and petroleum operations) er et nasjonalt, kunnskapsoppbyggende program om sjøfugl tilrettelagt for å gi styrket beslutningsstøtte for marine områder. Konseptet ble først utviklet for oljeindustrien i et samarbeid mellom Norsk institutt for naturforskning (NINA) og Den norske stats oljeselskap as (Statoil), men er senere videreutviklet i samarbeid med Norsk ...
Global phenological insensitivity to shifting ocean temperatures among seabirds
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-02)
Reproductive timing in many taxa plays a key role in determining breeding productivity, and is often sensitive to climatic conditions. Current climate change may alter the timing of breeding at different rates across trophic levels, potentially resulting in temporal mismatch between the resource requirements of predators and their prey. This is of particular concern for higher-trophic-level organisms, ...
SEAPOP studies in the Lofoten and Barents Sea area in 2006
(Research report; Forskningsrapport, 2007-04)
This is the second annual report of the SEAPOP programme, which was initiated in 2005. In
2006, the programme was extended to the near full scale in the Lofoten-Barents Sea area, but it
is aimed for implementation at the national level within few years. The report is divided into
three sections. The first is an executive summary, the second presents five selected highlights
from the studies in ...
Modelled drift patterns of fish larvae link coastal morphology to seabird colony distribution
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-13)
Colonial breeding is an evolutionary puzzle, as the benefits of breeding in high densities are still not fully explained. Although the dynamics of existing colonies are increasingly understood, few studies have addressed the initial formation of colonies, and empirical tests are rare. Using a high-resolution larval drift model, we here document that the distribution of seabird colonies along the ...
Later at higher latitudes: large-scale variability in seabird breeding timing and synchronicity
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-28)
In seasonal environments, organisms are expected to optimally schedule reproduction within an annual range of environmental conditions. Latitudinal gradients generate a range of seasonality to which we can expect adaptations to have evolved, and can be used to explore drivers of timing strategies across species’ distribution ranges. This study compares the timing of egg hatching in four seabird ...
Prevailing weather conditions and diet composition affect chick growth and survival in the black-legged kittiwake
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-04)
To identify priorities for management of seabirds during the breeding season, it is important to understand the ecological mechanisms driving chick growth and survival. In this study, we examined the effects of diet and prevailing weather on the growth and survival of chicks of black-legged kittiwakes Rissa tridactyla over a 10 yr period at Anda, a seabird colony in northern Norway. We show that ...
The decline of Norwegian kittiwake populations: modelling the role of ocean warming.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
The black-legged kittiwake Rissa tridactyla is a pelagic seabird whose population has recently declined in most parts of the North Atlantic and which is red-listed in most bordering countries. To investigate a possible cause for this decline, we analysed the population dynamics of 5 kittiwake colonies along the Norwegian coast, ranging from 62° to 71° N, over the last 20 to 35 yr. By quantifying the ...
The status and trends of seabirds breeding in Norway and Svalbard
(Research report; Forskningsrapport, 2015-03)
This report presents the updated sizes, trends and spatial distributions of the breeding populations of 17 seabird species breeding in Norway and Svalbard. The analyses are based on available census and monitoring data from SEAPOP; the Norwegian monitoring and mapping program for seabirds. In addition, the report presents results from a species-specific literature review of the most important ...