Browsing Norsk institutt for naturforskning by Journals "Marine Ecology Progress Series"
Now showing items 1-20 of 22
-
Assessing sea floor functional biodiversity and vulnerability
(Peer reviewed; Journal article, 2023)The marine benthos has been largely studied through the use of response traits that characterise species vulnerability to disturbance. More limited has been the specific use of effect traits that represent other species ... -
Behaviour and habitat use of first-time migrant Arctic charr: novel insights from a subarctic marine area
(Peer reviewed; Journal article, 2023)Anadromous Arctic charr Salvelinus alpinus is a cold-adapted salmonid that is vul nerable to climate warming and anthropogenic activities including salmon farming, hydropower regulation, and pollution, which poses a ... -
Blue mussels in western Norway have vanished where in reach of crawling predators
(Peer reviewed; Journal article, 2023)Blue mussels (Mytilus spp.) are declining around the world. In western Norway, they have widely disappeared from rocky shores but still thrive on floating structures. Other refugia are cracks in rocks, exposed sites, and ... -
Differences in foraging range between white-tailed tropicbirds breeding on inner and outer Seychelles islands
(Peer reviewed; Journal article, 2023)The foraging ecology and distribution of Phaethontiformes, an order of tropical seabirds, remains generally poorly understood, despite being essential to inform their conservation. Here, we tracked, for the first time, the ... -
Flexibility in otherwise consistent non-breeding movements of a long-distance migratory seabird, the long-tailed skua
(Journal article; Peer reviewed, 2017-02-15)Quantifying within- and between-individual variation in animal migration strategies is a first step towards our understanding of the ability of migrants to adjust to changes in the en - vironment. We studied consistency ... -
Forage fish abundance is a predictor of timing of breeding and hatching brood size in a coastal seabird
(Journal article; Peer reviewed, 2015)Current and future climate alterations might impact ecological processes like timing of breeding. We used multivariate linear models to assess the importance of food availability and climate on timing of breeding and ... -
Habitat connectivity and intra-population structure of an estuary-dependent fishery species
(Journal article; Peer reviewed, 2015)Habitat connectivity is a fundamental component of estuary-associated fish behaviour. Understanding this is critical to understanding population dynamics and the nursery role of estuarine habitats. This study aimed to ... -
Inter-annual variation in winter distribution affects individual seabird contamination with mercury
(Peer reviewed; Journal article, 2021)Migratory seabirds are exposed to various pollutants throughout their annual cycle. Among them, mercury (Hg) is of particular concern given its large impact on animal health. Recent studies suggest that winter is a critical ... -
Killer whale movements on the Norwegian shelf are associated with herring density
(Peer reviewed; Journal article, 2021)Killer whales Orcinus orca have a cosmopolitan distribution with a broad diet rang ing from fish to marine mammals. In Norway, killer whales are regularly observed feeding on overwintering Norwegian spring-spawning (NSS) ... -
Light-level geolocators reveal spatial variations in interactions between northern fulmars and fisheries
(Peer reviewed; Journal article, 2021)Seabird−fishery interactions are a common phenomenon of conservation concern. Here, we highlight how light-level geolocators provide promising opportunities to study these interactions. By examining raw light data, it ... -
Linking embryonic temperature with adultreproductive investment in Atlantic salmonSalmo salar
(Peer reviewed; Journal article, 2014)The expression of fitness-related traits, such as egg and gonad size, often varies among habitats and exhibits clinal variation along climatic and latitudinal gradients. However, the mechanisms allowing such variations ... -
Long-term tracking of an Arctic-breeding seabird indicates high fidelity to pelagic wintering areas
(Peer reviewed; Journal article, 2021)Site fidelity is driven by predictable resource distributions in time and space. However, intrinsic factors related to an individual’s physiology and life-history traits can contribute to consistent foraging behaviour and ... -
Migration of Atlantic salmon post-smolts in a fjord with high infestation pressure of salmon lice
(Journal article; Peer reviewed, 2018)Understanding Atlantic salmon Salmo salar post-smolt coastal migration behaviour is crucial for predicting their exposure to ecological challenges such as the parasite salmon louse Lepeophtheirus salmonis. We compared the ... -
Moult location and diet of auks in the North Sea inferred from coupled light-based and isotope-based geolocation
(Journal article; Peer reviewed, 2018)Many pelagic seabirds moult their feathers while at sea, which is an energetically costly behaviour. Mortality rates during moult can be high, so spatial and trophic ecology during this critical period is important for ... -
Multi-colony tracking reveals spatio-temporal variation in carry-over effects between breeding success and winter movements in a pelagic seabird
(Journal article; Peer reviewed, 2017)Carry-over effects, whereby events in one season have consequences in subsequent seasons, have important demographic implications. Although most studies examine carry-over effects across 2 seasons in single populations, ... -
Ocean climate and egg investment in the black-legged kittiwake Rissa tridactyla
(Journal article; Peer reviewed, 2017)Birds allocate substantial resources to their eggs during the laying period, resources also needed for other concurrent costly processes such as mate acquisition, nest building and site defence. Egg and clutch sizes may ... -
Optimal size at seaward migration in an anadromous salmonid
(Journal article; Peer reviewed, 2016)In this study, the probabilistic reaction norm was calculated for length at different ages of smolting before seaward migration of Atlantic salmon Salmo salar spawning in the Norwegian River Imsa. The reaction norm was ... -
Prevailing weather conditions and dietcomposition affect chick growth and survival in the black-legged kittiwake
(Journal article; Peer reviewed, 2018)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 ... -
Relationships between isotopic ratios, body condition and breeding success in a High Arctic seabird community
(Peer reviewed; Journal article, 2019)Predators such as seabirds are often used as bio-indicators of the marine environment. This is based on the assumption that changes in seabird populations are driven by changes in their prey. We tested this assumption in ... -
Reproductive success in the European shag is linked to annual variation in diet and foraging trip metrics
(Journal article, 2019)Seabird populations have declined worldwide, and several of the potential threats are of anthropogenic origin. To understand how changes in seabird populations relate to environmental conditions it is important to know the ...