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Is tracking marine animals really useful for their conservation?
One of the most frequent rationale to fit animals with tracking devices is to help in conservation actions and regulations. In the case of marine animals, is this argument only (or mostly) a wish,...
[WEBINAR] Animal tracking: The future of wildlife telemetry is coming
Since 1978, the Argos Data Collection System has served the international wildlife community. With the Kinéis constellation carrying onboard Argos-4 instruments, the metamorphosis of ARGOS is...
ANGELS satellite operational from 13th October 2020
As you all know, on December, 18th 2019, the successful launch of the first ANGELS nanosatellite, developed by CNES, HEMERIA and Thales Alenia Space, ANGELS marked the beginning of the metamorphosis...
Dugong movements and habitat use in coral reef lagoons
Dugongs are vulnerable herbivorous marine mammals living in tropical and subtropical coastal waters, including in coral reef lagoons. Their behaviour there is however little known. Argos enabled to...
Black-tailed godwits’ different migration behaviours
Migratory birds from a given species are frequently observed to follow the same routes, and do so every year. Tracking different populations with Argos satellite telemetry shows a very different...
Winds influence where male pectoral sandpipers will try and breed
Some migratory birds change their breeding sites every year, or even several times in a season. Pectoral sandpipers are among them, and understanding their breeding behaviour thanks to Argos...
Juvenile green turtle individuals behave differently, satellite telemetry reveals
Tracking the behaviour of a large number of juvenile green turtles in contrasting environments using satellite telemetry enables to show behavioural differences across individuals. The green...
Ruddy-headed geese, endangered sheldgeese on South American continent
Ruddy-headed goose is considered regionally endangered in Argentina and Chile, since recent estimates indicate that population size is less than 800 individuals. Ruddy-headed geese were tracked back...
Tracking bottlenose dolphins by night in narrow channels
Dolphins do have a nightlife, but visual observation techniques cannot fully capture this. Also, coastal populations of dolphins sometimes occupy complex, labyrinthine habitats. Here too...
Red-throated divers move away from offshore wind farms
Argos can help in evaluating overlaps of human activities and protected aquatic bird habitats. With that information, the planning of new infrastructures such as offshore wind farms can take species...
Sea turtle ecology: a novel solution to increase knowledge using Argos
An essential part of animal conservation is knowing and understanding their behavior. More than 500 turtles are tracked every month with Argos so that scientists can identify feeding and nesting...
Data collected from animals can help ocean observing systems
Data collected on animals by Argos satellite telemetry can be provided to physical oceanography, to fill in a number of gaps in the ocean observing systems. A study details how animal-born...
Argos helps in assessing fisheries bycatch risks to seabirds
After more than thirty years of Argos satellite telemetry, the extensive datasets that have accumulated can be used in diverse, large-scale studies. Incidental mortality (bycatch) in fisheries...
Basking sharks’ long journeys between Brittany and Cape Verde
Basking sharks can travel several thousand kilometers in a few months, as was discovered by monitoring their movements with Argos satellite tracking tags. Two basking sharks, in particular,...
Seals tracked by Argos prove great migrators
Did you know that seals are able to learn the melody of the Star Wars theme? Or that scientific studies based on Argos tracking data have confirmed they are great migrators? The grey seal, long...
How does EUMETSAT measure ocean temperature?
The ocean is the world's first heat concentrator. Measuring the temperature of our oceans is one of the key indicators of global warming. EUMETSAT (European Organisation for the Exploitation of...
Conservation priority areas for the Andean condor
Satellite telemetry enables to identify preferred habitats of the Andean condor, depending on their functions. Conservation priority areas for this scavenger bird can thus be better determined. The...
Distribution of baleen whales in the mid-North Atlantic Ocean
Baleen whales are highly migratory, going from low latitude in Winter to high-latitude waters in Summer. Satellite telemetry such as Argos has improved the knowledge of their distribution and...
American woodcock are tracked using Argos satellite telemetry
American woodcock are tracked using Argos satellite telemetry by the Eastern Woodcock Migration Research Cooperative. Those migratory birds, travel nocturnally along the Eastern and central part of...
5 key figures for World Penguins’ Day
On April 25th, 2020, we celebrate World Penguin Day. There are 18 species of penguins worldwide, living almost exclusively in the Southern Hemisphere. From the noble Emperor penguin to the smaller,...
Eels’ travel in the Atlantic tracked by Argos satellite telemetry
Eels, threatened by pollution, virus and parasites, overfishing, habitat loss and climate change have seen their population drop in the past decades. Their life and behaviour are studied to better...
Two very different destinations for two adventurous turtles
CESTM coordinates the French Eastern Atlantic Marine Turtle Network and welcomes all marine turtles found stranded or in distress drifting or as accidental by-catch along the Channel & Atlantic...
Argos helps to define a protected area for elephants in Cameroon
African elephants are under assault due primarily to the illicit ivory trade and, to a lesser extent, to habitat destruction and human incursions. Numbers are plummeting throughout most range...
Tracking of juvenile grey-headed albatrosses
Albatrosses are iconic seabirds of the Southern Ocean. Argos satellite telemetry has greatly increased knowledge of the at-sea distribution and behaviour of adults, and contributed to initiatives...
Chinstrap penguins are spreading a long way around Antarctica
Chinstrap penguins live around Antarctica. To understand better the precise reasons why their population is slowly declining, researchers from the Antarctic Ecosystem Research Division of NOAA...
Spoon-billed sandpipers, long-range travellers
Spoon-billed sandpiper are small shorebirds migrating long distances from Russia to the south of China, mostly along the coasts. Argos telemetry is helping to answer questions about those migrations...
Bowhead whales, auxiliary oceanographers
Bowhead whales are crossing iced regions in spring. They dive along their path and the environmental parameters are recorded and transmitted if they are equipped with Argos satellite telemetry tags....
Dorcas gazelles’ seasonal patterns of activity recorded by Argos
Dorcas gazelles live North of Sahel, in Africa. In some countries they are vulnerable and reintroducing them requires assessing their ability of adaptation to a new environment. Argos transmitted...
Olive Ridley turtles help in ocean climate forecasting
Olive Ridley sea turtles live in the tropical oceans. They dive to feed, and, as all species of sea turtles, they are threatened these days. To help in understanding and protecting them, some are...
ANGELS, the First French Industrial Nanosatellite, Works!
The first ARGOS satellite dedicated to environmental monitoring was launched in 1978 by NASA. Since then, this system has been at the service of the international scientific community and has...