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Tómas Grétar Gunnarsson - Research Professor

Tómas Grétar Gunnarsson

–

Þjónustustofnanir

Tómas Grétar Gunnarsson

Research Professor

Director - South Iceland Research Centre, University of Iceland

Location
Háskólasetur
Phone
525 - 5460
Email
tomas [at] hi.is

Unit
University of Iceland Research Centre in Suðurland

Show Published works

2025

Recent population changes of common waders and passerines in Iceland’s largest lowland regionBird Study
Seasonal variation in Whimbrel abundance across sub-Arctic habitats of varying succession stagePolar Biology
Serenade of a whimbrelJournal of Avian Biology
Site-level connectivity identified from multiple sources of movement data to inform conservation of a migratory birdJournal of Applied Ecology

2024

Annual and spatial variation in adult and brood abundance in a sub-Arctic waderBird Study
Does frequent handling influence Eurasian whimbrel chicks’ body condition?Journal of Ornithology
Greinargerð í kjölfar málþings um vistkerfisnálgun
Introduction of summer houses into semi-natural habitatsAnimal Conservation
Movement of juvenile migratory birds from settlement to adulthood across the non-breeding rangeJournal of Animal Ecology
Spóarnir hans ArnþórFuglar

2023

Annual schedule adjustment by a long-distance migratory birdAmerican Naturalist
Conservation beyond BoundariesAnimal Conservation
Does early spring arrival lead to early nesting in a migratory shorebird? Insights from remote trackingIbis
Icelandic Whimbrel first migrationIbis

2022

Barriers and bridges for sustaining functional habitat networksEcology and Evolution
Effects of overhead power-lines on the density of ground-nesting birds in open sub-arctic habitatsIbis
Effects of pair migratory behavior on breeding phenology and success in a partially migratory shorebird populationEcology and Evolution
Subarctic afforestationJournal of Applied Ecology

2021

Farhættir íslenskra tjaldaFuglar
Linking range wide energetic trade-offs to breeding performance in a long-distance migrantEcography
Paternal effects in the initiation of migratory behaviour in birdsScientific Reports

2020

Búsvæði og vernd íslenskra vaðfuglaNáttúrufræðingurinn
Individual variation in migratory behavior in a subarctic partial migrant shorebirdBehavioral Ecology
Linking Weather and Phenology to Stopover Dynamics of a Long-Distance MigrantFrontiers in Ecology and Evolution
Losing space for breeding wadersWader Study
Size, shape and sex differences in three subspecies of Black-tailed Godwits Limosa limosaBird Study
Vegetation structure influences predation rates of early nests in subarctic breeding wadersIbis
Votlendi í uppsveitunumLitli-Bergþór

2019

Faster migration in autumn than in springJournal of Avian Biology
Icelandic meadow-breeding wadersWader Study
Interacting effects of agriculture and landscape on breeding wader populationsAgriculture, Ecosystems and Environment
Linking warming effects on phenology, demography, and range expansion in a migratory bird populationEcology and Evolution
Mechanisms driving phenological and range change in migratory speciesPhilosophical Transactions of the Royal Society B: Biological Sciences
Talningar á mófuglum (counting waders and associated species in Iceland)Náttúrufræðingurinn
Why Are Whimbrels Not Advancing Their Arrival Dates Into Iceland? Exploring Seasonal and Sex-Specific Variation in Consistency of Individual Timing During the Annual CycleFrontiers in Ecology and Evolution
Why do earlier‐arriving migratory birds have better breeding success?Ecology and Evolution

2018

Patterns and processes in survival of shorebirds (Charadrii): a global reviewIbis
Population size of Oystercatchers Haematopus ostralegus wintering in IcelandBird Study
Timing the annual cycle of a sub-arctic migrant: phenological flexibility and potential effects on breeding performance
Wintering energetic balance and migration costs for Icelandic Whimbrels.

2017

Bloody cocklesWader Study
CorrigendumScientific Reports
Effects of spring temperature and volcanic eruptions on wader productivityIbis
Reconciling biodiversity conservation and agricultural expansion in the subarctic environment of IcelandEcology and Society
Use of agricultural land by breeding waders in low-intensity farming landscapesAnimal Conservation

2016

Avian abundance and communities in areas revegetated with exotic versus native plant speciesIcelandic Agricultural Sciences
La ecología de las agujas colinegras de Islandia. Expansión poblacional, migración y guerra de sexosInDiferente
Migration and non-breeding distribution of Icelandic whimbrels numenius phaeopus islandicus as revealed by ringing recoveriesWader Study
Migration, delays and breeding success of Whimbrel (Numenius phaeopus islandicus)
Nýting eggja og unga villtra fuglaFuglar
Very rapid long-distance sea crossing by a migratory birdScientific Reports

2015

Annual and large-scale variation in breeding output of Greylag geese Anser anser in IcelandBird Study
BREYTINGAR Á FJÖLDA ÆÐARHREIÐRA Á ÍSLANDINáttúrufræðingurinn
Do males overtake females? Migration schedules of Icelandic Whimbrel pairs
Ecosystem recharge by volcanic dust drives large-scale variation in bird abundanceEcology and Evolution
The Effects of Habitat Type and Volcanic Eruptions on the Breeding Demography of Icelandic Whimbrels Numenius phaeopusPLoS ONE

2014

Identifying important bird habitats in a sub-arctic area undergoing rapid land-use changeBird Study
Individual specialization in a shorebird population with narrow foraging nicheActa Oecologica

2013

Annual and between-colony variation in productivity of Arctic Terns in West IcelandBird Study
Costs, benefits, and fitness consequences of different migratory strategiesEcology
ENERGETIC TRADE-OFFS OF BLACK-TAILED GODWITSBulletin of the Ecological Society of America
Relationships between Long-Term Demography and Weather in a Sub-Arctic Population of Common EiderPLoS ONE
Sex-biases in distribution and resource use at different spatial scales in a migratory shorebirdEcology and Evolution
Sexing Icelandic Whimbrels Numenius phaeopus islandicus with DNA and biometricsRinging and Migration
Überschneiden sich verschiedene Unterarten der Uferschnepfe Limosa limosa in den iberischen Winterund Rastgebieten? Eine Bestätigung anhand genetischer MarkerJournal of Ornithology
Vernd, velferð og veiðar villtra fugla og spendýra. Lagaleg og stjórnsýsluleg staða og tillögur um úrbætur
Why is timing of bird migration advancing when individuals are not?Proceedings of the Royal Society B: Biological Sciences

2012

A horizon scanning assessment of current and potential future threats to migratory shorebirdsIbis
Overtaking on migrationOikos
Rapid changes in phenotype distribution during range expansion in a migratory birdProceedings of the Royal Society B: Biological Sciences
Results of a coordinated count of Eurasian Golden Plovers Pluvialis apricaria in Europe during october 2008Wader Study Group Bulletin
Sex promotes spatial and dietary segregation in a migratory shorebird during the non-breeding seasonPLoS ONE
The non-breeding distribution of icelandic Common Ringed PloversWader Study Group Bulletin

2011

Flexibility in spring arrival of migratory birds at northern latitudes under rapid temperature changesBird Study

2010

Contrasting the flexibility of schedules in related species with different migration strategies: Black-tailed godwits and Whimbrels breeding in IcelandWader Study Group Bulletin
Predator chases by breeding shorebirds: interspecific comparison of three species nesting in IcelandWader Study Group Bulletin
Vaðfuglar og votlendi í ljósi landnotkunarNáttúrufræðingurinn

2009

Æðarendur (Somatereae): ástand og stjórnun stofna og framtíðarhorfurNáttúrufræðingurinn
A Shorebird Maternity Unit
Effects of sandplain revegetation on avian abundance and diversity at Skogasandur and Myrdalssandur, South-IcelandConservation Evidence
Weather effects on breeding parameters in a sub-arctic, capital breeding resident: long-term data from IcelandClimate Change Research

2008

When density dependence is not instantaneousEcology Letters
When density dependence is not instantaneousEcology Letters

2006

Large-scale habitat associations of birds in lowland IcelandBiological Conservation
Monitoring large-scale wader productivity during autumn passage in IcelandWader Study Group Bulletin
Population-scale drivers of individual arrival times in migratory birdsJournal of Animal Ecology
Sexing of Black-tailed Godwits Limosa limosa islandicaBird Study
Why do female migratory birds arrive later than males?Journal of Animal Ecology

2005

A double buffer effect in a migratory shorebird populationJournal of Animal Ecology
Estimating population size in Black-tailed Godwits Limosa limosa islandica by colour-markingBird Study
Seasonal matching of habitat quality and fitness in a migratory birdProceedings of the Royal Society B: Biological Sciences

2004

ErratumNature
Pair bondsNature

2002

Gildi langtímastofnrannsóknaNáttúrufræðingurinn

2001

The buffer effect and large-scale population regulation in migratory birdsNature

1993

Reception of DGPS-corrections from radio beacons in the presence of precipitation static
The Icelandic DGPS-system, Design, Service and Integrity

Keywords for Specialisation:

Behavioural Ecology

Habitat selection

Population ecology

Nature conservation