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Open AccessEnergy supply during nocturnal endurance flight of migrant birds: effect of energy stores and flight behaviour
Migrating birds fly non-stop for hours or even for days. They rely mainly on fat as fuel complemented by a certain amount of protein. Studies on homing pigeons and birds flying in a wind-tunnel suggest that th...
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Article
Open AccessPatterns of high-flying insect abundance are shaped by landscape type and abiotic conditions
Insects are of increasing conservation concern as a severe decline of both biomass and biodiversity have been reported. At the same time, data on where and when they occur in the airspace is still sparse, and ...
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Article
Open AccessMulti-sensor geolocators unveil global and local movements in an Alpine-breeding long-distance migrant
To understand the ecology of long-distance migrant bird species, it is necessary to study their full annual cycle, including migratory routes and stopovers. This is especially important for species in high-ele...
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Migration routes and timing of European Nightjars (Caprimulgus europaeus) breeding in eastern Mongolia
The phenology and routes of long-distance migrations of European Nightjars are well described for Western European individuals migrating within the East Atlantic and Mediterranean flyways, while little is know...
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Open AccessRush or relax: migration tactics of a nocturnal insectivore in response to ecological barriers
During their annual migration, avian migrants alternate stopover periods, for refuelling, with migratory flight bouts. We hypothesise that European Nightjars (Caprimulgus europaeus) adapt their daily migration ta...
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Barrier effects of mountain ranges for broad-front bird migration
The influence of mountain ranges on broad-front bird migration has been investigated for several decades. However, almost all the studies have focused on flight behaviour, and have rarely considered the quanti...
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Open AccessMiniaturized multi-sensor loggers provide new insight into year-round flight behaviour of small trans-Sahara avian migrants
Over the past decade, the miniaturisation of animal borne tags such as geolocators and GPS-transmitters has revolutionized our knowledge of the whereabouts of migratory species. Novel light-weight multi-sensor...
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Open AccessWhat makes Alpine swift ascend at twilight? Novel geolocators reveal year-round flight behaviour
Studying individual flight behaviour throughout the year is indispensable to understand the ecology of a bird species. Recent development in technology allows now to track flight behaviour of small long-distan...
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Wing morphology, winter ecology, and fecundity selection: evidence for sex-dependence in barn swallows (Hirundo rustica)
Variation in wing morphology results from the combination of diverse selection pressures. Wing feather morphology within species varies with sex and ontogenetic effects, and also with ecological factors. Yet, ...
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Open AccessAtmospheric conditions create freeways, detours and tailbacks for migrating birds
The extraordinary adaptations of birds to contend with atmospheric conditions during their migratory flights have captivated ecologists for decades. During the 21st century technological advances have sparked ...
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Open AccessMigration phenology and breeding success are predicted by methylation of a photoperiodic gene in the barn swallow
Individuals often considerably differ in the timing of their life-cycle events, with major consequences for individual fitness, and, ultimately, for population dynamics. Phenological variation can arise from g...
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Book
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Aeroecology: An Integrative View of the Atmosphere
The aerosphere is a fluid and rapidly evolving medium, which provides habitat for an abundance of organisms. The evolution of life on earth is replete with examples of key adaptations that enable all forms of ...
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Article
Light-level geolocators confirm resident status of a Southern European Common Crossbill population
Common Crossbill (Loxia curvirostra) populations are dependent on specific key conifer species for their primary food supply, but many of these conifers standardly show irregular cone crop production. Consequentl...
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Chapter
Facing the Wind: The Aeroecology of Vertebrate Migrants
The aerosphere is an essential part of the habitat of flying vertebrates. Birds and bats make use of the airspace for daily activities like foraging, commuting, mating, and seasonal movements including migrati...
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Article
Open AccessFirst Direct Evidence of Long-distance Seasonal Movements and Hibernation in a Migratory Bat
Understanding of migration in small bats has been constrained by limitations of techniques that were labor-intensive, provided coarse levels of resolution, or were limited to population-level inferences. Knowl...
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Article
Open AccessBarrier crossing in small avian migrants: individual tracking reveals prolonged nocturnal flights into the day as a common migratory strategy
Over decades it has been unclear how individual migratory songbirds cross large ecological barriers such as seas or deserts. By deploying light-level geolocators on four songbird species weighing only about 12...
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Article
Light-level geolocators reveal covariation between winter plumage molt and phenology in a trans-Saharan migratory bird
Contingent individual performance can depend on the environment experienced at previous life-stages. Migratory birds are especially susceptible to such carry-over effects as they periodically travel between br...
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Article
Open AccessClock gene polymorphism and scheduling of migration: a geolocator study of the barn swallow Hirundo rustica
Circannual rhythms often rely on endogenous seasonal photoperiodic timers involving ‘clock’ genes and Clock gene polymorphism has been associated to variation in phenology in some bird species. In the long-distan...
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Article
Open AccessContinental-scale radar monitoring of the aerial movements of animals
Billions of organisms travel through the air, influencing population dynamics, community interactions, ecosystem services and our lives in many different ways. Yet monitoring these movements are technically ve...
