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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

Published works

2025

Predicting the breeding distribution of wader species across climatic and environmental gradientsWildlife Biology
Site-level connectivity identified from multiple sources of movement data to inform conservation of a migratory birdJournal of Applied Ecology
Seasonal variation in Whimbrel abundance across sub-Arctic habitats of varying succession stagePolar Biology
Predicting the breeding distribution of wader species across climatic and environmental gradientsWildlife Biology
Recent population changes of common waders and passerines in Iceland’s largest lowland regionBird Study
Serenade of a whimbrel: understanding the function of display behaviour in a sub‐Arctic territorial waderJournal of Avian Biology

2024

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

2023

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

2022

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

2021

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

2020

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

2019

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
Interacting effects of agriculture and landscape on breeding wader populationsAgriculture, Ecosystems and Environment
Talningar á mófuglum (counting waders and associated species in Iceland)Náttúrufræðingurinn
Icelandic meadow-breeding wadersWader Study
Faster migration in autumn than in springJournal of Avian Biology
Linking warming effects on phenology, demography, and range expansion in a migratory bird populationEcology and Evolution
Why do earlier‐arriving migratory birds have better breeding success?Ecology and Evolution
Mechanisms driving phenological and range change in migratory speciesPhilosophical Transactions of the Royal Society B: Biological Sciences

2018

Wintering energetic balance and migration costs for Icelandic Whimbrels.
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
Patterns and processes in survival of shorebirds (Charadrii): a global reviewIbis

2017

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

2016

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

2015

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

2014

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

2013

ENERGETIC TRADE-OFFS OF BLACK-TAILED GODWITSBulletin of the Ecological Society of America
Costs, benefits, and fitness consequences of different migratory strategiesEcology
Sexing Icelandic Whimbrels Numenius phaeopus islandicus with DNA and biometricsRinging and Migration
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
Annual and between-colony variation in productivity of Arctic Terns in West IcelandBird Study
Sex-biases in distribution and resource use at different spatial scales in a migratory shorebirdEcology and Evolution
Überschneiden sich verschiedene Unterarten der Uferschnepfe Limosa limosa in den iberischen Winterund Rastgebieten? Eine Bestätigung anhand genetischer MarkerJournal of Ornithology
Relationships between Long-Term Demography and Weather in a Sub-Arctic Population of Common EiderPLoS ONE

2012

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

2011

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

2010

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

2009

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

2008

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

2006

Sexing of Black-tailed Godwits Limosa limosa islandicaBird Study
Large-scale habitat associations of birds in lowland IcelandBiological Conservation
Population-scale drivers of individual arrival times in migratory birdsJournal of Animal Ecology
Monitoring large-scale wader productivity during autumn passage in IcelandWader Study Group Bulletin
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
Seasonal matching of habitat quality and fitness in a migratory birdProceedings of the Royal Society B: Biological Sciences
Estimating population size in Black-tailed Godwits Limosa limosa islandica by colour-markingBird Study

2004

Pair bondsNature
ErratumNature

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