LEO Network

About the LEO Network
The LEO Network is a worldwide network of observers and experts that share their observations of environmental change.
Continue

Observations

Caribbean swamped by seaweed that smells like rotten eggs
From Belize to Barbados, tourist beaches have been swamped by huge tides of foul-smelling sargassum – and climate change could make the problem worse
Ambergris Caye, Belize, Belize
the Guardian

Southcentral Alaska sees most destructive spruce beetle outbreak in over two decades
Spruce beetles damaged nearly 600,000 acres of forest in 2018, and the damage continues to grow.
Anchorage, Alaska, United States
Alaska Public Media

Hundreds of sea lions take over docks of Cowichan Bay
A raucous crowd has moved into Cowichan Bay and the volume and odour coming from them is wafting for blocks around. Locals estimate over 300 sea lions have descended on the Cowichan community and their presence is proving a huge tourist draw.
Duncan, British Columbia, Canada
CHEK

Herring (Clupea pallasii) in Harbor Seal (Phoca vitulina) stomach
Odd time of year for seals to be eating herring.
Haines, Alaska, United States

Chemically-cleaned Finnish lake still clear, but now overrun by waterweed
Littoinen Lake made headlines in 2017 when it was chemically treated because it was overwhelmed with phosphorous and algae. Now there is a new problem.
Turku, Varsinais-Suomi, Finland
Yle Uutiset

Ecological collapse of Toronto's ravine system has begun, researcher says
Ravines in Toronto, Ontario, Canada
CBC News

Three new humpback whales identified off east Vancouver Island
Three new humpback whales have been identified off the East Coast of Vancouver Island as that species makes a massive comeback in our waters.
Strait of Georgia, British Columbia, Canada
CHEK

‘Mosquito-pocalypse’: North Carolina residents battle massive bugs after hurricane
Massive, aggressive mosquitoes are swarming North Carolina weeks after Hurricane Florence tore through the region.
Fayetteville, North Carolina, United States
Global News

A 300-metre-long spiderweb has been woven in Greece
There's nothing for humans to worry about. Gnats, on the other hand...
Aitoliko, West Greece, Greece
Global News

Russian salmon fishermen dumping excess catch
Salmon harvesters in the Far East parts of Russia have landed so much fish that they have begun to dump some of their excess catch wherever they can, forcing the region to confront an epidemic of rancid, rotting salmon.
Kamchatka, Russia
Moscow Times

Seaweed Takes Over Popular Beach at the Grand Turk Cruise Center
Sargassum Seaweed has invaded the beach at the Grand Turk cruise center which is popular with cruise ship passengers.
Cockburn Town, Turks and Caicos Islands
Cruise Hive

Squirrel population surges in Northeast, as does roadkill
Biologists say plentiful food and other conditions are helping the rodents to thrive, and now the young ones are hitting the road.
Cape Neddick, Maine, United States
Press Herald

The seaweed deluge hitting Caribbean shores
Sargassum, a type of seaweed, is creating problems as it washes up across the Caribbean.
Caribbean Shores
BBC News

Northernmost Bobcat (Lynx rufus) Observation
This most Northerly Bobcat *(Lynx rufus)* observation in the iNaturalist database marks the leading edge of the northward expansion of this species.
Calgary, Alberta, Canada
iNaturalist.org

Communities innovate to address Sargassum seaweed on coasts of Saint Lucia
Sargassum is free-floating brown macro-algae that lives in the temperate and tropical oceans of the world. In the open ocean, the floating seaweed provides important ecosystem services by acting as habitats for a diverse group of marine animals. It provides food, shade, and shelter to many types of specialized fish, crustaceans, and turtles.
East Coast of Saint Lucia
Global Environment Facility

Sargassum on the south coast
Newport, Curacao
Curaçao Chronicle

Saimaa seal population on the rise in Finland
Recent heavy snowfall and large drifts have created ideal conditions for the dens where the endangered Saimaa ringed seal raise their young, and a record number of pups may be born this year. The freshwater Saimaa ringed seal is one of the most endangered seal species in the world.
Lake Saimaa, South Karelia, Finland
Eye on the Arctic

They just keep coming: Tent caterpillar invasion coats Sask. home in insects — and feces
Hordes of tent caterpillars have covered Tammi Hanowski's home south of Saskatoon and have crawled up the walls and made their way into her pool.
Saskatoon, Saskatchewan, Canada
CBC

Alaska abuzz over rise in wasp population
In Southcentral Alaska, wasps seem to be everywhere. One Anchorage clinic has seen more than 250 sting patients this year.
Anchorage, Alaska, United States
Anchorage Daily News

Sargassum algae invades the coasts of the Great South of Haiti
For over one year the coasts of the Great South of Haiti, are invaded by an unusual species of algae known as Sargassum or Seaweed. The most affected communities are : St Jean du Sud, Les Cayes, St Louis du Sud, Côtes de fer, Jacmel, Cayes Jacmel...
Saint-Louis du Sud, Sud, Haiti
HaitiLibre.com

Sierra Leone's stinking seaweed linked to Caribbean invasion
Proliferation of thick brown algae is affecting fishing, tourism and marine life on both sides of the Atlantic, say scientists
Tokeh, Western, Sierra Leone
the Guardian

Stinking mats of seaweed piling up on Caribbean beaches
Some tourists have canceled summer trips and lawmakers on Tobago have termed the sargassum invasion a “natural disaster.”
Cancún, Quintana Roo, Mexico
Miami Herald

Caribbean-bound tourists cancel holidays due to foul-smelling seaweed
Algal blooms threaten the economies of the globe’s most tourism dependent nations, scuttle holidays plans and give climate scientists more to worry about
Cancún, Quintana Roo, Mexico
the Guardian

Ocean 'blob' brings bad fish food to B.C. waters
The so-called 'warm blob' of water in the North Pacific has brought unusual plankton, which lack the nutrients wild salmon and other marine animals count on.
Northeast Pacific Ocean
CBC News

The Blob: Why warmer oceans are a big concern
Warm water threatens marine habitats off the coast of BC
Northeast Pacific Ocean
Sooke News Mirror

Bed bugs are calling Alaska home at increasing rates
In Anchorage, the city logged 68 bed bug complaints in 2013, a decrease from the 84 in 2012. There was just one complaint in 2007 and 2008 combined, according to city data.
Anchorage, Alaska, United States
Anchorage Daily News

Mosquito invasion in Southcentral Alaska leads to run on supplies
Each spring, it seems, the air of Alaska is filled with the buzz of mosquitoes and the whines of people declaring that this is undoubtedly the worst bug season they've ever experienced. This year they may have a case.
Anchorage Daily News

Caterpillars gang up on berry bushes, native trees
The outlook for blueberries in Southcentral Alaska this year is bleak, scientists say. The reason: Two species of moth have damaged berry patches, as well as native deciduous trees, from the southern Kenai Peninsula to Mat-Su.

Spider Webs Covering Acres of Grasslands
Spider webs covering vegetation along the Noatak River Delta resemble a mass "ballooning" event reported in Unalaska.
Noatak River Delta

Worst grasshopper infestation ever on tap for Prairies
Prairie farmers are facing a grasshopper infestation the likes of which might never have been seen in Western Canada. The last kick from a drought that devastated crops last year.
Saskatchewan, Canada
CBC

Quebec is in a 'high tick year' and the white-tailed deer boom isn't helping
The mild winter and fluctuating spring temperature appears to have led to a tick boom in Quebec, a province where cases of Lyme disease have been steadily climbing for years.
Quebec, Canada
CBC

Black vultures are descending on Hershey. Residents want them gone.
Hundreds of black vultures have descended on Hershey. Residents want them gone. As they reach new habitats, the vultures’ destructive habits are creating problems in many Pennsylvania communities.
Hershey, Pennsylvania, United States

Humpback salmon have invaded the River Teno
This summer, the number of humpback salmon in the River Teno, the border river between Norway and Finland, has increased enormously from last year. These salmon have been swimming near the shores, with masses of them dying in the river from exhaustion. Local people are extremely worried.
Teno River, Norway/Finland Border
The Independent Barents Observer

Ancient white sturgeon caught in Canada
The fish measured 56 inches in circumference and weighed 800 lbs. Its age is not known, but it could be more than 100 years old, given its size. The monster sturgeon had never been tagged before, so this may have been the first time it was caught.
Agassiz, British Columbia, Canada
The Irish Times

Beluga whalers in Northwest Alaska, North Slope boast a great 2021 season
With relatively calm summer weather, an Utqiagvik crew landed at least 11 beluga whales this season, Wainwright was lucky to caught 50, and Kotzebue Sound saw the second-highest harvest in more than a decade, according to local hunters.
Utqiaġvik, Alaska, United States

A creeping mass of insect larvae near a Denali lodge raises the question: ‘Am I hallucinating?’
A worker in Kantishna glimpsed the rare phenomenon in which hundreds of Alaska gnat snakeworm larvae formed a crawling column.
Healy, Alaska, United States

A record number of Atlantic walruses recorded in the Russian Arctic
According to preliminary data, more than seven thousand walruses were recorded, which is two times as many as last year. This was also when the largest walrus habitat in the history of Arctic exploration was found on the northernmost island of the Franz Josef Land archipelago, the Eva-Liv island.
Franz Josef Land
The Independent Barents Observer

Spring bounty: Utqiagvik landed 10 whales in less than two weeks
This early in spring, the season usually only starts, but the weather patterns have been changing, and so has been the harvest time, Donovan said.
Utqiaġvik, Alaska, United States
The Arctic Sounder

Local finds giant puffball mushroom
What is 30 lbs, 26 inches around and white all over? Your next meal, or ten meals, or twenty.   Calvatia gigantea, or giant puffballs, typically ranges from the size of a mini marshmallow to a soccer ball. The largest record of a giant puffball had a circumference of eight feet & eight inches and weighed 48 lbs.
Haines, Alaska, United States
Chilkat Valley News

Support

Observation Template