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Winds and barriers shape zigzagged trans-African migrations of Canarian Eleonora’s falcons

Winds and barriers shape zigzagged trans-African migrations of Canarian Eleonora’s falcons
A research team led by Doñana Biological Station – CSIC studied how wind fields and geographical barriers shape the trans-African migrations of Eleonora’s falcons between the Canary Islands and Madagascar
The results show that falcons zigzag across Africa because they maximize wind support through oppossing wind fields, across open ocean and across the Sahara, and then compensate for those displacements through weak or favourable wind fields
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actualidad long-distance migration gps tracking bird migration eleonora’s falcons falco eleonorae 13/07/21

Correcting 6% of electric pylons used by Canarian Egyptian vultures could reduce electrocutions by 50%

Correcting 6% of electric pylons used by Canarian Egyptian vultures could reduce electrocutions by 50%
A study led by the Doñana Biological Station analyzes the patterns of power lines use by Canarian Egyptian vultures. The researchers have fitted 49 individuals with GPS-devices. This accounted for around 20% of the total population size of this endangered species. ? The study concludes that the patterns use of pylons by large body-size avian scavengers depend on individual- and environmental-based drivers, such as the patial distribution of food resources and anthropisation.
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actualidad egyptian vultures non-natural mortality gps tracking canarian egyptian vulture guirre 02/07/21

Use of avian GPS tracking to mitigate human fatalities from bird strikes caused by large soaring birds

Use of avian GPS tracking to mitigate human fatalities from bird strikes caused by large soaring birds
A research team from the Doñana Biological Station-CSIC and the Miguel Hernández University tracked griffon and cinereous vultures and white storks to study their flight patterns
These species mostly fly under 1,300 meters so the flight altitudes overlapped the legal flight altitude limit set for general aviation, which is 900 meters.
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actualidad aves gps buitres gps tracking storks buitre leonado buitre negro 11/05/21

Gulls can spread weeds over large distances and between habitats

Gulls can spread weeds over large distances and between habitats
A study from the Doñana Biological Station has developed a seed dispersal model based on the movement of gulls monitored by GPS telemetry, while feeding in rice fields in Andalusia, South-West Spain.
Modelling shows that gulls can disperse weeds over large distances and between different hábitats, causing the exchange of weed and alien plant species between agricultural crops and natural areas.
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actualidad movement ecology gulls long-distance dispersal larus fuscus ricefields gps tracking weeds 08/03/21

Where to head: environmental conditions shape foraging destinations in a critically endangered seabird

Where to head: environmental conditions shape foraging destinations in a critically endangered seabird
An international team monitors reproductive Balearic shearwaters, a critically endangered species, in Ibiza for four years to determine the most important feeding areas for this population and study what factors determine their choice.
The study concludes that the shearwaters prefer to feed in the areas of the Iberian shelf closest to the colony, such as the Gulf of Valencia and Cabo de la Nao, due to lower flight costs
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actualidad conservation endangered species feeding behaviour gps tracking pufnus mauretanicus 16/02/21
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