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

Beluga Whale Spotted in The Yukon River Near Tanana
The marine mammal was seen some 600 miles from where the river empties into the Bering Sea.
Tanana, Alaska, United States

Mosquitoes are unusually dense and vicious all of a sudden
Our Mosquito Magnet trap filled in under a week. We normally empty it once a month or so.
Ester, Alaska, United States

Late-blooming Rose (*Rosa acicularis*) in Fairbanks
Wild roses typically bloom in June and July, and go dormant when temperatures drop in the fall and winter.
Fairbanks, Alaska, United States

Lots of Late Blooming Roses (*Rosa acicularis*)
Wild roses usually bloom in May and June, but warm fall temperatures may have signaled roses in Fairbanks to bloom later than usual.
Ester, Alaska, United States

White bear on the Junjik River
Unusual coloration in bears is often the result of a recessive gene combination. According to researchers at the Alaska Department of Fish and Game, light colored bears have been found in Interior Alaska, although this is the first observation of one submitted to LEO.
Allakaket, Alaska, United States

Early Ripe Blueberries
Moose Mountain, Fairbanks, AK

Multi-headed Fireweed (*Chamerion angustifolium*)
Browsing moose may have damaged the primary flowering shoot of the fireweed, causing it to form multiple blooming stalks.
Ester, Alaska, United States

Blueberries in June
Manley hotspring road

Prickly Rose (*Rosa acicularis*) in Bloom WAY Out of Season
Prickly rose plant is blooming when others have gone to hips.
Fairbanks, Alaska, United States

Rare Wood Frog (*Lithobates sylvaticus*) Sighting
Wood frog sighted on trail.

Peregrine Falcon (*Falco peregrinus*) in January!!?
Peregrine falcon observed in interior Alaska in early January.
Nenana, Alaska, United States

Permafrost Melt Causing River Erosion
Severe permafrost thaw and erosion along Koyukuk River banks.
Allakaket, Alaska, United States

First Ripe Blueberries (*Vaccinium ovalifolium*), South side of Wickersham Dome
Little early for blueberry to be ripe.
White Mountains National Recreation Area, Alaska, United States

Lots of Wood Frogs (*Lithobates sylvaticus*)
Spotted half a dozen wood frogs crossing Roland Road, Fairbanks. Those that were run over by cars were females loaded with eggs.
Fairbanks, Alaska, United States

Warm Weather Delaying Winter
Winter is near, but, it is unusually nice outside these days.
Evansville, Alaska, United States

Moose (*Alces alces*) Eating Rose Hips (*Rosa aciculariso* or *R. nutkana*)
Young moose eating rose hips.

Another Warm Month in Alaska
Least Surprising News: Another Warm Month in Alaska
Alaska, United States

Unseasonably Warm and Bad Ice
11-11-14 Unseasonable warm - Ruby, Alaska, USA
Ruby, Alaska, United States

Koyukok River Erosion
7-15-14 River erosion - Evansville, Alaska, USA
Evansville, Alaska, United States

Lots of Mosquitoes (*Culicidae*)
Mosquito populations are way up in Southcentral Alaska this year. Extremely high numbers are also reported from interior Alaska.
Interior of Alaska, United States

Erosion Disrupts Swallows
6-3-13 Erosion disrupts swallows - Evansville, Alaska, USA
Evansville, Alaska, United States

Freezing Waterlines
12-21-12 Freezing waterlines - Evansville, Alaska, USA

Changing Plant Conditions
More leaf miners this year, less blue berry blossoms, but more cranberry.

River Bank Erosion
Erosion on the banks of the Koyukuk River is increasing in the community of Evansville and Bettles.

Unseasonably Warm
4-25-12 Unseasonably warm - Evansville, Alaska, USA

Slow River Freeze Up and Difficult Travel Conditions
Unusually warm temperatures for an extended period this winter has affected the ability to travel because the river isn't freezing over.
Galena, Alaska, United States

Wild Rose October Bloom
We typically see them blooming in June and most of them have been without blooms for months.
Galena, Alaska, United States

Arctic Fox in Galena?
Cell phone video was taken by one resident, and the fox appears to be an Arctic fox, which is not known in this region.
Galena, Alaska, United States

More Brown Bears (*Ursus arctos*)
10-1-12 More brown bears - Koyukuk, Alaska, USA
Koyukuk, Alaska, United States

Boats Still on the River
11-1-13 Boats still on the river - Koyukuk, Alaska, USA
Koyukuk, Alaska, United States

Open Water Disrupting Winter River Travel
Ice conditions on the Yukon have changed since the 1980's. Now, open water is more common in spots along the river, which impacts winter travel.
Koyukuk, Alaska, United States

Strange Chum Salmon (*Oncorhynchus keta*)
Strange chum salmon (Oncorhynchus keta)
Koyukuk, Alaska, Unites States

River Erosion
River erosion along the Yukon River near..?
Yukon River, Alaska, United States

Early thaw around Mukluk Slough
Early thaw of sloughs in and around Nulato
Nulato, Alaska, United States

Strange & Unusual Plants Observed
Strange and unusual plant located in Nulato on northwest bank of the Yukon River.
Nulato, Alaska, United States

Unusual Plant - Red osier dogwood (*Cornus sericea*)?
Plant found in patch of high bush cranberries.
Nulato, Alaska, United States

Unspawned Chum Salmon (*Oncorhynchus keta*) and Other Dead Fish
"Over 40 dead dog salmon, one shee fish, one lush fish, and two delmaga all dead along the river going towards the creek opening."
Kaltag, Alaska, United States

Delphiniums (*Delphinium glaucum*) Growing Again
Delphiniums (*Delphinium glaucum*) are still growing late in to the season.
Grayling, Alaska, United States

Rare Sighting of Fork-tailed Storm Petrel (*Oceanodroma furcata*)
Never seen before in area.
Grayling, Alaska, United States

Large Number of Moths
Last year there was a large infestation of caterpillars in the area, wondering if that is why we have all the moths this spring
Anvik, Alaska, United States

Springtime in Anvik Alaska
What are the weather conditions for Anvik in mid-April?
Anvik, Alaska, United States

Small Sinkhole in the Village
Is this a sign of more to come? Land changes raises questions about possible causes.
Anvik, Alaska, United States

Caterpillar (*Orthosia hibisci*) Infestation Causes Defoliation
The village of Anvik along the west bank of the Yukon River has an increase in defoliation associated with caterpillar numbers.

Lots of Furry Moths
Unknown furry moth
Holy Cross, Alaska, United States

Tadpole Shrimp at Swimming Hole
7-26-13 Tadpole shrimp at swimming hole
Russian Mission, Alaska, United States

Extreme Flooding in Huslia
Huslia, Alaska, United States

River Erosion on the Yukon Flats
Yukon Flats community dealing with river erosion and landscape changes that are threatening the loss of traditional harvesting areas.
Fort Yukon, Alaska, United States

Milbert's Tortoiseshell Caterpillar (*Aglais milberti*) Infestation
Milbert's tortoiseshell caterpillar infestation
Chalkyitsik, Alaska, United States

Decreased Peregrine Falcon Sightings on Yukon River
Between the fall of 2021 and the fall of 2022, APU students observed a dramatic decrease in the number of Peregrine Falcons between Eagle and Circle, Alaska.
Eagle, Alaska, United States

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