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

Massive anchovy school in White Rock draws a crowd
“I’ve never seen anything like it,” said photographer Marissa Baecker, who was visiting White Rock from Kelowna on Christmas Day. “It wasn’t just a feeding, it was a feast.”
White Rock, British Columbia, Canada
Vancouver Sun

Anchovies take over White Rock shores
People in White Rock, B.C. are used to seeing fish in their waters but not quite like this.
White Rock, British Columbia, Canada
Facebook Watch

Thousands of 'sea pickles' wash up on Monterey Bay beach
Hundreds upon hundreds of specimens known as "sea pickles" washed up on Monterey Bay beaches on Thursday. As explained by the Monterey Bay Aquarium, "Big waves and strong currents are pushing pyrosomes onto local beaches.
Asilomar State Beach, Pacific Grove, California, United States
SFGate

Seabird Aggregation Over Abundant Northern Anchovy (Engraulis mordax)
Professor John Reynolds shared the following video of his observation of a large aggregation of gulls and other coastal seabirds over a large aggregation of Northern Anchovy at White Rock, BC.
White Rock, British Columbia, Canada
Twitter

Big Year for Highbush Cranberries (Viburnum edule)
Highbush cranberries benefited from unusually warm, sunny conditions.
Seldovia Village, Alaska, United States

Large Northern Sea Nettle (Chrysaora melanaster) Die-off
A large group of dead northern sea nettles (*Chrysaora melanaster*) found near the shore in Kasitsna Bay.
McDonald Spit, Alaska, United States

Outbreak of tree-killing, allergy-inducing moths
An infestation of tussock moths, which have the ability to quickly kill healthy Douglas fir trees, is on the move in British Columbia and the Ministry of Forests says it has now been found further north than ever before.
Wycotte Flat, British Columbia, Canada
CBC

Schools of California Anchovy (Engraulis mordax)
Ross Bay, Victoria, British Columbia, Canada

Scarlet Honeyeaters (Myzomela sanguinolenta) Unusually Abundant in Brisbane
Sherwood Arboretum, Queensland, Australia

Why do Calgarians keep seeing bobcats?
The city keeps a record of the number of reported sightings of the animals, along with other wildlife. There were three sightings in 2007, about 10 in 2015 and 27 this year.
Calgary, Alberta, Canada
The Star

River Otters (Lutra canadensis) in University Lake
River otters (*Lutra canadensis*) observed in a lake that typically is home to beavers.
Anchorage, Alaska, United States

Unusually High Number of Horseflies (Tabanidae) and Wasps (Vespula)
Unusually high number of horseflies and wasps observed during a year with temperatures and precipitation levels above normal.
Koyuk, Alaska, United States
Sarah Yoder, Rebecca Charles, Derek Sikes

Abundance of Hemlock Looper Moths (Lambdina fiscellaria)
Burnaby, British Columbia, Canada

Outbreak of hemlock looper moth hits North Shore, Metro watersheds
While there is no risk to human health, the species of moth can decimate forests
Vancouver, British Columbia, Canada
Vancouver Sun

Moth population takes flight in North Vancouver
The North Shore is discovering what life is like under moth rule. Eclipses of moths have been flitting, fluttering and generally wreaking havoc around any light source over the past week.
Lynn Canyon, British Columbia, Canada
North Shore News

Detectan presencia del 'Pez Diablo' en Sinaloa; una amenaza para la pesca y los ecosistemas
They detect the presence of the 'Devil Fish' in Sinaloa; a threat to fishing and ecosystems
Culiacán, Sinaloa, Mexico
News

Blacksmith (Chromis punctipinnis) Newly Abundant in Central California
"In the midfield of my dive this school of blacksmith suddenly appeared. They were hiding from cormorants that dove into the water."
Edward F. Ricketts State Marine Conservation Area, California, United States

Sargassum hits Belize hard
For the fifth consecutive year, influxes of sargassum seaweed have begun piling up on beachfronts in major tourist destinations in Belize.
Placencia, Stann Creek, Belize
Breaking Belize News

Short-tailed Shearwaters (Ardenna tenuirostris) Found on Chukchi Sea Beach
More than 50 birds and a seal were found along the shoreline.
Kivalina, Alaska, United States
Kathy Kuletz, Janet Mitchell, Gay Sheffield, Hillary Burgess

Glaucous-winged Gulls (Larus glaucescens) Nesting on Bogoslof Island
"Since the last eruption event, most seabird species that previously nested on the island have returned and made attempts to breed again...but the habitat is currently not ideal."
Bogoslof Island, Alaska, United States
Melissa Good, Kathy Kuletz, Chris Price, Nikki Whittern

Grasshopper invasion of Las Vegas may last weeks
An unusually wet year is responsible for the biblical-seeming swarm of pallid-winged grasshoppers, according to entomologists.
Las Vegas, Nevada, United States
New York Times

NASA satellites find biggest seaweed bloom in the world
An unprecedented belt of brown algae stretches from West Africa to the Gulf of Mexico. The largest bloom of macroalgae in the world, has been dubbed the Great Atlantic Sargassum Belt.
Great Atlantic Sargassum Belt (GASB)
EurekAlert!

Dragon Flies Reach the Colville Nigliq Channel
Nuiqsut, Alaska, United States

Sand Lance (Ammodytes hexapterus) Die-Off
Hundreds of dead sand lance (*Ammodytes hexapterus*) found along the shores of White Sands Beach.
Kodiak, Alaska, United States
Bruce Wright, Jayde Ferguson, Stephanie Mason, Ted Meyers

Pink Salmon (Oncorhynchus gorbuscha) and Other Fish Dying in Warm Water
Koyuk, Alaska, United States
Gay Sheffield, Chris Dankmeyer, Anahma Shannon, Rebecca Charles, Austin Ahmasuk, Racheal Lee, Jayde Ferguson

Sargassum Seaweed (S. fluitans and S. natans) beaching in Key West
Little to no apparent management posed possible ecological and environmental health concerns.
Key West, Florida, United States

Puffins Numbers High in Westman Islands
A total of 78% of puffin nests on the islands were occupied in a recent survey. Puffins have been hard hit in recent years due to a diminished food supply. It remains to be seen how successful the breeding season will be.
Vestmannaeyjar, South, Iceland
Iceland Review

Booming anchovy population helps salmon, orcas
Swarms of anchovy can be seen swimming through the South Sound.
KIRO

Blue-green algae increasing in Finnish lakes
Potentially harmful blue-green algae has increased in lakes over the past week.
Vainikkala, South Karelia, Finland
Yle Uutiset

Sea Lice Plagues Return and Threat to Wild Salmon Increases
Major sea lice epidemics have erupted on Atlantic salmon fish farms on Vancouver Island’s west coast over the last three months, according to industry, Fisheries and Oceans Canada and independent reports.
Clayquot Sound, British Columbia, Canada
The Tyee

High-flying ladybug swarm shows up on National Weather Service radar
The ladybug bloom appears to be about 80 miles by 80 miles, but the ladybugs aren’t in a concentrated mass that size; they’re spread throughout the sky.
San Bernadino Mountains, California, United States
latimes.com

Fluff Flies Into Russia's Capital
Early summer in Moscow brings an onslaught of allergy-inducing, Instagram-ready fluff from poplar seeds.
Moscow, Moscow, Russia
The Moscow Times

May Day Trees (Prunus padus) Take Hold at Cheney Lake
The forest on the East side of Cheney Lake is changing and the biggest change is the proliferation of May Day trees.
Anchorage, Alaska, United States

Steelhead Numbers Are Up in the Carmel River
Conservationists are rejoicing this spring over Steelhead Trout numbers in the Carmel River. "The count is up," said Haley Ohms a project scientist with University of California Santa Cruz.
Los Padres Dam, Carmel River, California
KSBW

Rat infestation plagues Toronto neighbourhood
Her right hand protected by an old plastic bag, Donna Devlin carefully reaches into a shallow sewer basin in her driveway, and drags out a dead rat the size of her forearm. It's the latest casualty in a war that Devlin and her neighbours say they've been fighting, on and off, for two decades.
Toronto, Ontario, Canada
CBC

Proliferation of Red Fox (Vulpes vulpes) in Landfill
Rabies has been identified by the State of Alaska as being endemic (regularly found) in the fox population in this area.
Nelson Lagoon, Alaska, United States

Seaweed invading Essequibo, Demerara, Berbice rivers
Aerial shots of what appeared to be remnants of an oil spill in the Essequibo River has turned out to be huge beds of sargassum seaweed which is now a
Parika, Essequibo Islands-West Demerara, Guyana
Stabroek News

Record-high bird count at Yukon's Swan Haven over weekend
One wildlife expert says seeing more than 2,000 trumpeter swans at the sanctuary is unusual, but on Saturday there were nearly 3,000 counted.
CBC

Booming Red Fox (Vulpes vulpes) Population
"It’s a bit because people are feeding them, and they’re getting into the dumpster now too. But I’ve never seen them like this before."
King Cove, Alaska, United States

Red Fox (Vulpes vulpes) and Arctic Fox (Vulpes lagopus) Converging on North Slope
There seems to be a large red fox population in the region around Nuiqsut, Alaska. When I last traveled there for work, I counted 5 red fox during a 1.5 hour-long car ride.
Nuiqsut, Alaska, United States
Elizabeth Lindley, Karsten Hueffer, Abby Nelson

Lots of Female King Crabs (Paralithodes camtschaticus)
Large number of Red King Crabs (*Paralithodes camtschaticus*) found on the beach during an extreme low tide. According to fisheries researchers, crabs move to shallow water to hatch and release eggs.
Juneau, Alaska, United States

Reported wolverine sightings are up, says N.W.T. gov
Last week, in the wee hours of the morning, a curious wolverine was caught on camera wandering the hallway to a dormitory at Diavik Diamond Mine.
Northwest Territories

Large Number of Redpolls (Acanthis)
Fox, Alaska, United States

Invasion of redpolls sends seeds flying
After a record-low last winter, the birds are making a comeback. Redpolls, seen in two varieties in Alaska — the common and the hoary — have attracted scientists’ attention because the birds survive super-cold temperatures. Physiologist Laurence Irving ranked redpolls’ feathers just behind pine grosbeaks for “apparent usefulness for insulation.”Redpolls have a secret weapon other small birds, including chickadees, don’t possess: food pouches on each side of their necks.
Fairbanks, Alaska, United States
Anchorage Daily News

Thousands of Queensland beachgoers stung by swarm of jellyfish
Surf Life Saving Queensland said a “whopping” 3,595 people were stung by jellyfish, forcing the closure of popular swimming spots across the northern state. Lifeguards said the invasion was caused by unusually strong north-easterly winds.
Gold Coast, Queensland, Australia
The Independent

Support

Observation Template