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Canola, a mixed blessing for Carnaby’s cockatoos?
Carnaby's cockatoos are endangered parrots, endemic to the south-west of Western Australia. They are beginning to feed on canola crops, which might be interesting for their survival – or not. Argos...
Argos satellite system launch announced
You already know that back in 2018, CLS created Kinéis with one goal: transform the Argos satellite system and deploy an unparalleled connectivity that is near real-time, universal, and with a...
Blue sharks in the Western Mediterranean Sea
Blue sharks are threatened - as most shark species. However, basic information on the species in the Mediterranean are missing - population, habitat, migration… -- while this sea is specific,...
Tracking Japanese eels with Argos tags
Japanese eels’ populations are declining, while their life cycle is not well-known. Part of the questions are similar to those asked for the European eels, but geography, the current and the species...
WaterSIM: Digitizing Water Resilience
Water is an essential resource to everyone on Earth. However, according to UNESCO, between 2-3 billion people worldwide experience water shortages. These shortages will only get worse over the...
CLS’ Buoyant Innovations: The Wooden Drifters Reshaping Ocean Monitoring
Drifting buoys such as those in the Global Drifter Program make significant contributions to weather forecasting, climate studies & marine studies. Additionally, they support scientific research...
Eagle-owls perching on powerlines
Eurasian eagle-owls are the largest owl in the world, found in a large range of different environments. They usually perche on high lookout-points, electric poles included, which is a high risk for...
Leatherback turtles nesting in Equatorial Guinea
Tracking leatherback turtles can help in protecting them at both a local scale, close to their nesting beach, and a basin-scale, when they migrate. The population from the Gulf of Guinea is...
Debbie Stakem: A 32-Year Journey with Argos
An enhanced global system like Argos requires an enhanced global support team and, with its 30 different sites around the world, CLS is proud to have an excellent international userservices team....
Seals Help in Assessing the Bathymetry around Antarctica
Southern Ocean seals are frequently tracked marine animals. They thus provide a lot of environmental data on an otherwise poorly observed ocean. This includes bathymetry of the Antarctica...
Understanding Catastrophic Breeding Seasons in a Large Colony of King Penguins
King penguins breed on a few colonies spread around the Southern Ocean. Some years are more successful than others in that respect, and understanding why could help in protecting such threatened...
Assessing exposure of harbour seals to maritime traffic noises
Harbour seals living in the North Sea are exposed to a heavy ship traffic. New Argos archival tags enable to record ambient sounds, so that noise exposures can be quantified at the seals’ level. A...
Montagu’s harriers are itinerant during their wintering in Africa
Montagu's harriers are migratory raptors wintering in Africa from Europe. However, once there and as many migrant birds, they do not stay at the same place during the whole winter, but move from...
How deep are bottlenose dolphins diving?
Bottlenose dolphins have been studied more in shallow waters than in deep ones. However, they do live in deep waters, for example around the Bermuda Island. Monitoring their diving behavior there...
Dive Into the Cutting-Edge Argos-4 Services Starting On July 10th!
Unleash the Power of the 4th Argos Generation Experience a New Era of Excellence! Here we are: Gazelle and Ocean-Sat-3 are now fully operational and will be ready for you to use on the 10th of July!...
What triggers Eurasian teals’ migrations?
Eurasian teals are migratory ducks. A behavioral aspect still unknown for this species is the effect of environmental cues on triggering departure for migration and departure from stopover sites...
Oceanic manta rays in the eastern Atlantic
Oceanic manta rays are found around the tropical open oceans. Their presence and behaviour in the East of the Atlantic Ocean was poorly known, and has been investigated using Argos satellite...
The longest non-stop flight ever recorded for a landbird
On 11 July 2022, in the grassy tundra northwest of Nome, Alaska, biologists Jesse Conklin and Dan Ruthrauff had found a brood of Bar-tailed Godwits. They fitted each of the three small chicks with a...
Turtles in a hurricane
Turtles in the Gulf of Mexico experience major hurricanes. How they respond to such extreme events is a puzzle whose answers would contribute to the conservation of these threatened and endangered...
Double-Crested Cormorants nesting in a small reservoir
Water birds need specific environments, but may use new areas. Double-crested cormorants are now nesting in the South-East of USA, including on small reservoirs, not only in the Great Lake system....
Green turtles’ uses of Marine Protected Areas on the West African coasts
Green turtles are found along the West African upwelling. A network of Marine Protected Areas has been established during the past 25 years. Its efficiency towards protecting green turtles can be...
Cuckoos’ migration from South Korea to the South of Africa
Common cuckoos are found in Eurasia, from Europe to Korea. All over the continent, they migrate to Africa, while they parasite different birds’ nests. Tracking them using Argos helps understand the...
Tracking eels to the Sargasso Sea
European eels are a critically endangered species. They have a complex life-cycle with their spawning area thought to be in the Sargasso Sea. A study managed to track them to their breeding place...
Why Arctic foxes travel long distances?
The Arctic foxes have been noticed as travelling very long distances over the whole Arctic regions. Long time series of tracks retrieved by Argos enables to analyse this behaviour to understand why...
Eurasian Wookcocks’ migrations to breeding sites
Eurasian Woodcocks are birds which migrate across Europe. Their studies have long been led using rings, but the advent of small-enough satellite telemetry emitters now enables to follow them all...
Black-tailed godwits are breeding in areas of intensive agriculture
Some bird species like the black-tailed godwits are nesting on ground, in grasslands. However, across all of lowland Europe, such areas have been transformed for intensive agriculture. Tracking by...
Tracking northern elephant seals in ocean eddies
Understanding how a marine species uses the features of its environment is important for conservation. The northern elephant seals are close cousins to their southern equivalents. A number of...
Argos support: your daily operations partner
Last year we met with Charles Drieu La Rochelle, member of the user support team in France, to find out more about CLS Group's excellent customer care. But, did you know that he's part of a dynamic...
Selecting sites for Harpy Eagles’ releases
Harpy Eagles are threatened birds of prey of Central and South Americas. A study show why and how releases of rehabilitated or captive-born animals should consider home range characteristics and...
Loggerhead turtles and Mediterranean Marine Protected Areas
Assessing whether an endangered species visits the protected areas – or not – is an important indicator of their relevance. Tracking of loggerhead turtles in the Mediterranean Sea show that...