VR project “Flight strategies and orientation of migrating birds”
The overall aim is to understand evolutionary possibilities and limitations in bird migration and to explain birds’ transport ecology and orientation. The research program includes five main parts.
Tests in relation to optimal migration theory of adaptive migratory behaviour. Satellite tracking, field and radar studies are used to evaluate migration strategies among species (and sex and age classes) and seasons, and to analyse fly-and-forage migration in relation to landscape structure.
The geometry of migration routes is analysed in relation to possible orientation mechanisms (incl. polar studies, e.g. during the Beringia 2005 expedition). Multi-year satellite tracking is used to explore how the birds’ inherent spatiotemporal migration program is complemented by imprinting and learning during the individuals’ migration history from juvenilehood and onwards.
Migration patterns in the circumpolar Arctic and the interdependence between migration, breeding and winter ranges are evaluated by biogeographic analyses.
The variability of flight performance between and within species is analysed from the project’s unique database of tracking radar measurements, and by comparing natural flight characteristics with performance in the wind tunnel (studies of swift).
The evolution of migration in a partial migrant (blue tit) is evaluated by comparing migratory and resident individuals with respect to behavioural, physiological and ecological differences.
(fetched from Lund University's publications database)
- Activity and migratory flights of individual free-flying songbirds throughout the annual cycle : Method and first case study
- Adaptive strategies in nocturnally migrating insects and songbirds: contrasting responses to wind.
- Consistency in long-distance bird migration: Contrasting patterns in time and space for two raptors
- Are flight paths of nocturnal songbird migrants influenced by local coastlines at a peninsula?
- Interspecific comparison of the flight performance between sparrowhawks and common buzzards migrating at the Falsterbo peninsula: A radar study
- Narrow-Front Loop Migration in a Population of the Common Cuckoo Cuculus canorus, as Revealed by Satellite Telemetry.
- Seasonal modulation of flight speed among nocturnal passerine migrants: differences between short- and long-distance migrants
- When and where does mortality occur in migratory birds? Direct evidence from long-term satellite tracking of raptors.
- Drought in Africa Caused Delayed Arrival of European Songbirds
- Fine-scaled orientation changes in migrating shorebirds
- Interspecific Comparison of the Performance of Soaring Migrants in Relation to Morphology, Meteorological Conditions and Migration Strategies
- Movements of immature European Honey Buzzards Pernis apivorus in tropical Africa
- Nocturnal passerine migrants fly faster in spring than in autumn: a test of the time minimization hypothesis
- The annual cycle of a trans-equatorial Eurasian-African passerine migrant: different spatio-temporal strategies for autumn and spring migration
- To fly or not to fly depending on winds: shorebird migration in different seasonal wind regimes
- Where on earth can animals use a geomagnetic bi-coordinate map for navigation?
- Animal Orientation Strategies for Movement in Flows
- Basal metabolic rate and energetic cost of thermoregulation among migratory and resident blue tits
- Convergent patterns of long-distance nocturnal migration in noctuid moths and passerine birds.
- Geographical and temporal flexibility in the response to crosswinds by migrating raptors.
- Great flights by great snipes: long and fast non-stop migration over benign habitats.
- Individuality in bird migration: routes and timing
- Nocturnal passerine migration without tailwind assistance
- Optimal bird migration revisited
- Compensation for wind drift by migrating swifts
- Exaggerated orientation scatter of nocturnal passerine migrants close to breeding grounds: comparisons between seasons and latitudes
- How hazardous is the Sahara Desert crossing for migratory birds? Indications from satellite tracking of raptors.
- Loop migration in adult marsh harriers Circus aeruginosus, as revealed by satellite telemetry
- Migratory and resident blue tits Cyanistes caeruleus differ in their reaction to a novel object
- Converging migration routes of Eurasian hobbies Falco subbuteo crossing the African equatorial rain forest.
- Daily travel schedules of adult Eurasian Hobbies Falco subbuteo - variability in flight hours and migration speed along the route
- Flight by night or day? Optimal daily timing of bird migration.
- Flight speeds of swifts (Apus apus): Seasonal differences smaller than expected
- Flight speeds of swifts (Apus apus): seasonal differences smaller than expected.
- Radar Observations of Arctic Bird Migration in the Beringia Region
- Short-distance migration of the Common Buzzard Buteo buteo recorded by satellite tracking
- Skipping the Baltic: the emergence of a dichotomy of alternative spring migration strategies in Russian barnacle geese
- Complex timing of Marsh Harrier Circus aeruginosus migration due to pre- and post-migratory movements
- Diffuse, short and slow migration among Blue Tits
- Does migration promote or restrict circumpolar breeding ranges of arctic birds?
- ECOLOGY: Give Way to the Migrants
- Effects of wind and weather on red admiral, Vanessa atalanta, migration at a coastal site in southern Sweden
- Flexibility in daily travel routines causes regional variation in bird migration speed
- Great-Circle Migration Of Arctic Passerines
- The role of migration for spatial turnover of arctic bird species in a circumpolar perspective
- Bird migration and species diversity under polar conditions: the Siberian – American migration systems
- Conflicting evidence about long-distance animal navigation
- Do migratory flight paths of raptors follow constant geographical or geomagnetic courses?
- Do partial and regular migrants differ in their responses to weather?
- Implications of migratory connectivity for species' ranges and subspeciation of arctic shorebirds
- Obituary Gustaf Rudebeck (1913–2005)
- Strategies for the transition to breeding in time-selected migration
- Temporal and spatial patterns of repeated migratory journeys by ospreys
- Traveling or stopping of migrating birds in relation to wind: an illustration for the osprey
- Wind-dependent foraging flight in the Osprey Pandion haliaetus
- Age-dependent migration strategy in honey buzzards Pernis apivorus tracked by satellite
- Animal behaviour - The lobster navigators
- Bird migration speed
- Bird orientation: compensation for wind drift in migrating raptors is age dependent
- Can vector summation describe the orientation system of juvenile ospreys and honey buzzards? - An analysis of ring recoveries and satellite tracking
- Compass orientation and possible migration routes of passerine birds at high arctic latitudes
- Ecology of long-distance movements: migration and orientation performance
- Energy limitations for spring migration and breeding: the case of brent geese Branta bernicla tracked by satellite telemetry to Svalbard and Greenland
- Long-distance migration: evolution and determinants
- Orientation scatter of free-flying nocturnal passerine migrants: components and causes
- Adaptive variation of airspeed in relation to wind, altitude and climb rate by migrating birds in the Arctic
- Dark-bellied Brent Geese Branta bernicla bernicla, as recorded by satellite telemetry, do not minimize flight distance during spring migration
- Harmonic oscillatory orientation relative to the wind in nocturnal roosting flights of the swift Apus apus.
- Radar observations of Arctic bird migration at the Northwest Passage, Canada
- Site use by dark-bellied brent geese Branta bernicla bernicla on the Russian tundra as recorded by satellite telemetry: implications for East Atlantic Flyway conservation
- The problem of estimating wind drift in migrating birds
- Confronting the winds: orientation and flight behaviour of roosting swifts, Apus apus
- Detours in bird migration
- Evaluation of long-distance orientation in birds on the basis of migration routes recorded by radar and satellite tracking
- Migration Along Orthodromic Sun Compass Routes by Arctic Birds
- Satellite tracking of Swedish Ospreys Pandion haliaetus: Autumn migration routes and orientation
- Timing and speed of migration in male, female and juvenile Ospreys Pandion haliaetus between Sweden and Africa as revealed by field observations, radar and satellite tracking