Wildfires & Wildlife — Biodiversity, Endangered Species & Extinction

ForestSat Research · Global Biodiversity Impact

The Scale of Wildfire's Biodiversity Crisis

Wildfire is emerging as one of the primary drivers of global biodiversity loss — alongside habitat destruction, climate change, invasive species, and pollution. The following statistics, drawn from peer-reviewed research and major conservation organizations, establish the scope of a crisis that is accelerating as fire seasons grow longer, more intense, and geographically broader.

3 Billion

Animals harmed — Australia Black Summer alone

WWF / Prof. Dickman, Univ. Sydney (2020)

4,400+

Vertebrate species at extinction risk from changed fire

Ayars et al. PNAS (2023); Ruffault et al. Nature Climate Change (2025)

9,592

Non-marine species facing increased future wildfire exposure

Ruffault et al. Nature Climate Change (March 2025)

93–95%

Amazon species affected by fire (2001–2019)

Enquist et al. Nature (2021) — 14,000 species assessed

144

New species listed as threatened in Australia post-Black Summer

EPBC Act; Earth.org (January 2024)

10–19%

Of ALL giant sequoias killed — 2021 California fires

NPS / USFS (2021) — KNP Complex + Windy Fire

508

California vertebrate species potentially affected 2020–21

Ayars et al. PNAS (2023)

83.9%

Of wildfire-vulnerable species face higher risk by 2050

Ruffault et al. Nature Climate Change (2025)

20%

Of Australia's temperate forest cover burned in Black Summer

Nature Climate Change (February 2020)

~137/day

Species potentially going extinct from Amazon habitat loss

IPBES / Amazon Frontlines estimate

>50%

Orangutan population decline in 60 years (Indonesia fires)

IUCN Red List / IFAW

1 Million

Species at extinction risk globally (primary driver: habitat fire/loss)

IPBES Global Assessment (2019)

The Black Summer fires of 2019–20 affected an area the size of the United Kingdom. A team of 10 scientists studying 28 million acres concluded that 3 billion individual native animals were harmed or killed — the largest such event ever quantified. Slow-moving species like koalas, echidnas, and wombats had no escape. Ground-nesting birds lost eggs and chicks. The Australian Alps' alpine communities — the world's southernmost mainland ski terrain — were stripped of the insulating snow cover and vegetation their unique fauna depend on. The EPBC Act subsequently listed 144 additional species as threatened — directly attributable to the fires.

ENDANGERED Wikimedia Commons

Koala

Phascolarctos cinereus

🇦🇺 Australia

Slow-moving and dependent on eucalyptus trees for food and shelter, koalas cannot outrun fire. The Black Summer killed an estimated 30% of the koala population in some regions. NSW/QLD populations relisted as Endangered in 2022, partly due to Black Summer losses. Koalas suffer severe burns to paws and face as they climb trees in hope of escape.

30%

Population lost (some regions)

IUCN Status post-2020

5,000

Estimated to survive Kangaroo Island

NEAR THREATENED Wikimedia Commons

Platypus

Ornithorhynchus anatinus

🇦🇺 Australia

One of the world's most unusual mammals, the platypus inhabits freshwater streams whose quality is severely degraded by post-fire ash and sediment runoff. The Black Summer burned catchments of key platypus rivers in Victoria and NSW. Post-fire flooding deposited toxic ash loads into streams, killing invertebrates that platypuses feed on.

Near Threatened (trending VU)

300K–1M

Estimated surviving individuals

High

Post-fire water impact

CRITICALLY ENDANGERED Wikimedia Commons

Mountain Pygmy Possum

Burramys parvus

🇦🇺 Alpine Victoria

Confined to just a few hectares of alpine boulder fields in Victoria's ski areas, this tiny marsupial is one of Australia's most critically endangered mammals. Fire destroyed surrounding vegetation it uses for foraging and nesting. Zoos Victoria had to provide emergency supplementary food to wild populations. The species is also losing snow cover — its winter dormancy depends on insulating snow.

Critically Endangered

~2,500

Total wild individuals

Emergency

Zoo feeding programme activated

ENDANGERED Wikimedia Commons

Eastern Bristlebird

Dasyornis brachypterus

🇦🇺 SE Australia

One of Australia's rarest birds, the eastern bristlebird is a ground-dweller confined to fragmented coastal heath and forest. The Black Summer destroyed critical habitat. Zoos Victoria conducted emergency evacuations of breeding populations to off-site captive facilities before fire reached key sites — one of the first documented wildlife evacuations in response to an imminent megafire.

Endangered

<2,000

Wild individuals

Evacuated

Emergency Zoo relocation

CRITICALLY ENDANGERED Wikimedia Commons

Southern Corroboree Frog

Pseudophryne corroboree

🇦🇺 Snowy Mountains

One of the world's most visually striking frogs — vivid yellow and black — the southern corroboree frog is already functionally extinct in the wild. Fewer than 50 individuals survived before Black Summer. Fire and drought have destroyed the sphagnum moss bogs of the Snowy Mountains it requires for breeding. A captive breeding programme at several Australian zoos maintains the species from extinction.

Critically Endangered

<50

Wild individuals remaining

Captive breeding

Last line of survival

CRITICALLY ENDANGERED Wikimedia Commons

Kangaroo Island Dunnart

Sminthopsis fuliginosus aitkeni

🇦🇺 Kangaroo Island

This tiny carnivorous marsupial — the size of a mouse — was found only on Kangaroo Island, South Australia. The Black Summer fires burned 210,000 hectares of the island — approximately 48% of its land area. The dunnart population was estimated to have fallen to fewer than 500 individuals post-fire. Emergency actions included predator control (feral cats now hunt through burned landscape with no cover for prey).

Critically Endangered

<500

Post-fire estimate

48%

Of Kangaroo Island burned

The Amazon rainforest is described by scientists as "fire-naïve" — most species evolved without fire and have no adaptations to survive it. An intact rainforest is too humid to burn; deforestation dries adjacent forest and creates the conditions for fire to spread. The political cycles of Brazilian deforestation enforcement (aggressive under Bolsonaro 2019–22; recovering under Lula 2023–) are directly visible in biodiversity impact data. A landmark Nature study found that between 2001 and 2019, 93–95% of 14,000 documented Amazonian species had already suffered some consequence of fire. Scientists warn the Amazon is approaching a tipping point — where 20–25% deforestation permanently shifts it from forest to savanna, releasing billions of tonnes of carbon.

NEAR THREATENED Wikimedia Commons

Jaguar

Panthera onca

🌎 Amazon Basin

The Amazon's apex predator, the jaguar requires vast unbroken forest territories of 25–200 km² per individual. Fires fragment these territories, isolate populations, and destroy prey species. Ranchers — many of whom set fires to clear land — also kill jaguars that prey on livestock. The deforestation arc in southern Amazon is pushing the jaguar's range northward. Population has declined 25–50% in last century.

NT→VU

Near Threatened, trending

~64,000

Wild individuals remaining

25–50%

Population decline in century

VULNERABLE Wikimedia Commons

Harpy Eagle

Harpia harpyja

🌎 Amazon / Central America

The largest and most powerful eagle in the Americas, the harpy eagle requires vast tracts of undisturbed primary Amazon forest for its enormous nesting territory (up to 100 km²). Fire directly destroys nesting trees and fragments territories. The species is already vulnerable from deforestation; fire accelerates the loss of primary forest it depends on. Population density is extremely low — typically 1 breeding pair per 400–500 km².

Vulnerable

1 pair

Per 400–500 km² territory

20,000

Estimated remaining

ENDANGERED Wikimedia Commons

Giant River Otter

Pteronura brasiliensis

🌎 Amazon Basin

The world's largest otter, already under pressure from illegal hunting and habitat destruction, faces additional threats from fire-driven ash and sediment runoff that kills the fish populations it depends on. Over 3,000 species of fish in the Amazon — many highly specialized — face habitat degradation when fire ash makes its way into rivers. Giant river otter population has declined by more than 80% since the 1970s.

Endangered

80%

Population decline since 1970s

~2,000–5,000

Wild individuals

ENDANGERED Wikimedia Commons

Golden-headed Lion Tamarin

Leontopithecus chrysomelas

🌎 Bahia, Brazil

Primates were identified as the most affected group in the landmark Nature study on Amazon fires — they depend on trees for movement, food, and shelter, making them uniquely vulnerable to fire-driven deforestation. This tamarin is already restricted to fragmented Atlantic Forest fragments. Fire events repeatedly burn through its remaining habitat. Population estimated at fewer than 6,000 individuals.

Endangered

<6,000

Individuals remaining

Atlantic Forest

Most endangered biome

California's 2020–21 megafire seasons were unlike anything in the modern record. Fifty-eight percent of all wildfire-damaged area since 2012 occurred in just those two years. The result was catastrophic for wildlife: 100 vertebrate species lost more than 10% of their entire geographic range in two years. High-severity fire — which kills trees and eliminates habitat rather than restoring it — burned 89% of total burned area in patches larger than historical maximums. Species adapted to low-intensity fire are completely unprepared for megafire at this scale and severity.

NEAR THREATENED Wikimedia Commons

Giant Sequoia

Sequoiadendron giganteum

🇺🇸 Sierra Nevada, California

The world's largest tree by volume — some over 3,000 years old — evolved with low-intensity fire that actually opens its cones. But the 2021 KNP Complex and Windy Fire exceeded the fire intensity they evolved to survive: 10–19% of ALL giant sequoias on Earth were killed in a single season. NPS wrapped individual trees in fire-resistant foil and deployed helicopter Bambi buckets to protect the oldest specimens.

Near Threatened

10–19%

Of ALL trees killed in 2021

3,000

Max age in years

CRITICALLY ENDANGERED Wikimedia Commons

California Condor

Gymnogyps californianus

🇺🇸 California, Arizona, Utah

Reduced to 22 individuals in 1982, the condor has recovered to 560 through one of the most intensive conservation programmes in history. Wildfires destroy nesting sites in old-growth trees and rock cavities, reduce available carcasses (the condor's food), and displace birds from established territories. The 2020 California fires impacted known nest sites. Condors absorb toxic lead from lead-shot carcasses — a compounding threat in fire-disturbed landscapes.

Critically Endangered

All-time low (1982)

560

Population 2022

ENDANGERED Wikimedia Commons

Northern Spotted Owl

Strix occidentalis caurina

🇺🇸 Pacific Northwest, California

The spotted owl became a symbol of old-growth forest conservation battles in the 1990s. Today megafires present an arguably greater threat than logging. High-severity fires in the Sierra Nevada have destroyed old-growth forest structure the spotted owl requires — large diameter trees with complex canopy layers. The species already declined 75% in the past 25 years; fire-driven old-growth loss continues the decline.

Endangered

75%

Population decline (25 yrs)

Old-growth

Requires multi-century forest

VULNERABLE Wikimedia Commons

Wolverine

Gulo gulo

🇺🇸🇨🇦 Northern Rockies / Boreal

North America's largest terrestrial member of the weasel family depends on persistent snowpack for denning — directly threatened by both climate change and fire-driven habitat alteration in the Rocky Mountains. Canada's record 2023 fires burned extensive wolverine habitat in BC and Alberta. The wolverine's low population density and large home range (up to 900 km²) make it extremely sensitive to habitat fragmentation from large fires.

Vulnerable

900 km²

Individual home range

<300

US individuals estimated

The Mediterranean basin is one of the world's 36 biodiversity hotspots — containing roughly 25,000 plant species, half found nowhere else on Earth. Its remarkable diversity reflects millions of years of evolution in a specific climate. The escalating fire seasons of 2017, 2021, 2022, 2023, and 2025 have burned through the heart of this diversity with increasing frequency and severity. The 2023 Alexandroupolis fire destroyed the Dadia Forest Reserve — the only remaining breeding ground of black vultures in the Balkans. The 2025 Iberian fires, burning 1,079,538 hectares, devastated cork oak woodland that supports the Iberian lynx, Spanish imperial eagle, and Iberian wolf.

ENDANGERED Wikimedia Commons / LIFE Programme

Iberian Lynx

Lynx pardinus

🇪🇸🇵🇹 Iberian Peninsula

The world's most endangered wild cat species — once reduced to fewer than 100 individuals — has recovered to approximately 1,000 through intensive conservation, but fire remains a major threat. The Iberian lynx depends on Mediterranean scrubland (maquis) and pine forest for prey (primarily rabbits) and denning. Fire destroys habitat and reduces rabbit populations. 90% of endangered species conservation spending in Spain/Portugal goes to the lynx and Spanish imperial eagle.

Endangered (recovering)

~1,000

Current population (from ~100 in 2002)

Maquis fire

Primary habitat threat

VULNERABLE Wikimedia Commons

Spanish Imperial Eagle

Aquila adalberti

🇪🇸 Spain

One of the rarest raptors in Europe, the Spanish imperial eagle nests in the cork oak and stone pine woodlands repeatedly burned by Spanish fire events. Restricted to the Iberian Peninsula, population recovered from approximately 30 pairs in the 1960s to 800+ individuals today — but fire events destroy nesting territories and prey habitat. Over 90% of European species recovery spending has gone to the lynx and this eagle.

Vulnerable

~800

Individuals (2023)

30 pairs

Nadir in the 1960s

NEAR THREATENED Wikimedia Commons

Balkan Black Vulture Colony

Aegypius monachus

🇬🇷 Dadia Forest, Greece

The only breeding colony of black vultures in the Balkans — resident in the Dadia Forest Reserve in northeastern Greece — lost its entire habitat when the 2023 Alexandroupolis fire burned 80,000+ hectares including the vast majority of Dadia. Ecologists described the loss as potentially catastrophic for Balkan vulture conservation. Black vultures are the largest raptors in Europe with a wingspan up to 2.95 m.

Near Threatened

Only

Balkan breeding population

80,000 ha

Dadia burned 2023

ENDANGERED Wikimedia Commons

Mediterranean Monk Seal

Monachus monachus

🇬🇷🇨🇾 Mediterranean Sea

One of the world's rarest marine mammals — fewer than 800 individuals — the Mediterranean monk seal faces coastal habitat disruption from fires that burn cliff-top vegetation above its pupping caves. Ash and toxic runoff from coastal fires degrade nearshore marine habitat and fish populations. 2023 and 2025 Greek fires burned extensive coastal zones across Aegean islands.

Endangered

<800

Total world population

1 of 2

Surviving monk seal species

Fire-driven biodiversity loss is a global phenomenon — each biome presenting unique vulnerabilities. Indonesia's peat swamp fires destroy orangutan habitat while releasing ancient carbon stored for thousands of years. Siberian fires devastate reindeer lichens that take decades to recover, threatening Indigenous herding cultures. South Korea's 2025 fires, unprecedented in their scale, killed a 1,300-year-old Buddhist temple and the wildlife of temperate East Asian forests not evolved for megafire. Africa's savanna fires — historically natural and ecologically important — are becoming too frequent and intense for wildlife populations to recover between events.

CRITICALLY ENDANGERED Wikimedia Commons

Orangutan

Pongo pygmaeus / P. abelii

🇮🇩 Borneo & Sumatra

Both Bornean and Sumatran orangutans are Critically Endangered. The 2015 and 2019 Indonesian peatland fires — set primarily to clear land for palm oil and pulpwood — destroyed vast areas of peat swamp forest, the orangutan's primary habitat. Orangutans cannot outrun fire and are frequently found injured and displaced after fire events. Population has declined by more than 50% in the past 60 years.

Critically Endangered

>50%

Population decline in 60 years

104,700

Bornean individuals (2004 est.)

~14,600

Sumatran individuals

CRITICALLY ENDANGERED Wikimedia Commons

Sumatran Tiger

Panthera tigris sumatrae

🇮🇩 Sumatra

The last surviving tiger subspecies in Indonesia — all others are extinct or likely extinct — the Sumatran tiger requires large tracts of lowland forest that Indonesian fires have progressively destroyed. Fewer than 400 individuals remain. The 2015 El Niño-driven fire season, which produced 2,280 megatonnes of carbon globally, burned critical Sumatran tiger habitat. Palm oil expansion fires continue destroying the forest.

Critically Endangered

<400

Wild individuals remaining

Other 2 taxa

Extinct in wild

VULNERABLE Wikimedia Commons

Reindeer / Caribou

Rangifer tarandus

🇷🇺 Siberia / Sakha

Siberian fires are devastating to Indigenous reindeer herding peoples and to the animals themselves. Fires destroy lichen pastures that reindeer depend on in winter — lichen grows only 1–3 mm per year and takes decades to recover. Fire smoke disrupts migration routes. Catastrophic fires like 2021 Yakutia destroyed herding grounds for multiple Indigenous Selkup, Evenki, and Yakut communities.

Vulnerable

1–3mm/yr

Lichen regrowth rate

Decades

To recover post-fire pasture

NEAR THREATENED Wikimedia Commons

Giant Sequoia

Sequoiadendron giganteum

🇺🇸 Sierra Nevada, California

The world's largest tree by volume — some specimens over 3,000 years old — the giant sequoia evolved with low-intensity fire and actually requires it for cone release. But the megafires of 2021 killed 10–19% of ALL giant sequoias on Earth in a single season. The KNP Complex and Windy Fire killed trees that had survived 3,000 years of previous fires, because uncharacteristic high-severity megafire exceeded their evolved tolerance.

Near Threatened

10–19%

Of ALL giant sequoias killed in 2021

3,000

Max age (years)

~80,000

Trees estimated remaining

CRITICALLY ENDANGERED Wikimedia Commons

California Condor

Gymnogyps californianus

🇺🇸 California / Arizona

The largest North American bird — a 10 kg vulture with a 3m wingspan — was reduced to just 22 individuals in 1982 before captive breeding began. The condor has recovered to 560 individuals (2022) through one of the most costly conservation programmes in history. Wildfires directly destroy nesting cavities in old-growth trees and cliffs, reduce large mammal carcasses (the condor's food), and displace the birds from established territories. The 2020 fire season impacted known nest sites.

Critically Endangered

All-time low (1982)

560

Population by 2022

Wingspan

ENDANGERED Wikimedia Commons

African Wild Dog

Lycaon pictus

🌍 Sub-Saharan Africa

Africa's most endangered carnivore, African wild dogs are highly sensitive to habitat disturbance. Savanna fires in sub-Saharan Africa — both natural and human-set — can temporarily provide hunting advantages (open visibility post-fire) but devastating large-scale fires destroy prey populations. With only ~6,600 individuals remaining across 39 countries, any habitat disruption threatens isolated packs.

Endangered

~6,600

Remaining in wild

Countries remaining

80%

Historical range lost

CRITICALLY ENDANGERED Wikimedia Commons

Amur Leopard

Panthera pardus orientalis

🇷🇺 Russian Far East / 🇨🇳 China

The world's rarest big cat — fewer than 100 individuals in the wild — is critically endangered in the Russian Far East and northeastern China, where forest fires are an increasing threat. Amur leopards require old-growth Korean pine and broad-leaved forest that takes centuries to develop. Climate-driven fire risk is increasing in this region, threatening the already critically small population.

Critically Endangered

<100

Wild individuals globally

Rarest

Large cat on Earth

ENDANGERED Wikimedia Commons

Bornean Pygmy Elephant

Elephas maximus borneensis

🇲🇾 Borneo

The smallest elephant subspecies, confined to the northern tip of Borneo, depends on lowland rainforest that is under constant threat from fire-aided agricultural expansion. The 2015 Indonesian fires created dense haze across Borneo that affected elephant health and displaced populations. Habitat fragmentation from repeated fires isolates elephant groups, reducing genetic diversity.

Endangered

~1,500

Individuals remaining

Smallest

Elephant subspecies

ForestSat Research · 10 Fire Events × Species Impact

Major Fire Events & Their Biodiversity Consequences

The following table documents the direct biodiversity consequences of 10 major wildfire events across the globe between 2015 and 2025 — with key species impacted, scale of loss, and conservation responses deployed.

Fire / Year	Region	Key Species Impacted	Scale of Biodiversity Loss	Conservation Response
Black Summer 2019–20	🇦🇺 Australia	Koala, mountain pygmy possum, eastern bristlebird, kangaroo island dunnart, corroboree frog	3 billion animals harmed; 144 species relisted; 20% of temperate forest lost	Zoos Victoria emergency evacuations; WWF $10M wildlife fund; 72,000 RFS volunteers
Amazon 2001–2024	🌎 Brazil / Bolivia	Jaguar, harpy eagle, giant river otter, golden lion tamarin, 14,000 species	93–95% of 14,000 species affected; 10,000 km²/yr lost since 2019	IBAMA enforcement (weakened 2019–22); Lula $1B TFFF (2023); Indigenous land rights
California 2020–21	🇺🇸 USA	California condor, giant sequoia, spotted owl, Pacific fisher, Sierra Nevada fox	508 vertebrates affected; 10–19% of giant sequoias killed; 100 species lost 10%+ of range	NPS sequoia wrapping; condor evacuation from nest sites; USFS wildlife corridors plan
Indonesia Peatlands 2015	🇮🇩 Indonesia	Sumatran orangutan, pygmy elephant, sun bear, Sumatran tiger	2.6M ha burned; 11.3M people health-affected; Critical peat habitat destroyed	BRG peatland restoration agency established 2016; moratorium on new peatland licenses
Siberia 2021	🇷🇺 Russia	Reindeer (Rangifer tarandus), wolverine, Siberian tiger (margins), indigenous herds	18.8M ha burned; record 970 Mt CO₂; lichen pastures (decades to recover) destroyed	Russian Avialesookhrana deployed; Indigenous herding communities received emergency aid
Dadia Forest 2023	🇬🇷 Greece	Black vulture (only Balkan population), Spanish imperial eagle, white-tailed eagle	80,000 ha burned — entire Dadia Forest Reserve; only Balkan black vulture colony threatened	EU rescEU 1/3 fleet; Greece €1B prevention pledge; WWF raptor emergency monitoring
Evia / Greek Islands 2021	🇬🇷 Greece	Loggerhead sea turtle (Caretta caretta), Bonelli's eagle, Mediterranean monk seal	50,000 ha northern Evia; coastal nesting beaches burned; autumn flash floods on denuded slopes	ARCHELON turtle rescue teams; NPS species monitoring; Zoos Greece relocation planning
Iberian Peninsula 2025	🇪🇸🇵🇹 Spain / Portugal	Iberian lynx, Spanish imperial eagle, cork oak montado community, Iberian wolf	1.08M ha EU record; cork oak woodlands burned; raptor nesting habitat destroyed	EU rescEU 19 activations; Spain/Portugal prevention investigations; montado restoration funds
Fort McMurray 2016	🇨🇦 Canada	Woodland caribou, boreal woodland salamander, wood bison	590,000 ha boreal forest; critical woodland caribou critical habitat burned	Alberta government emergency caribou monitoring; post-fire reforestation of boreal
Canada Season 2023	🇨🇦 Canada	Woodland caribou, boreal songbirds, migratory waterfowl, moose	18M ha — largest in recorded history; smoke affected 354M people; boreal habitat catastrophic	International aid from 14 countries; caribou range emergency assessment; wetland protection

Sources: WWF; IUCN Red List; EPBC Act; PNAS (Ayars et al. 2023); Nature (Enquist et al. 2021); Zoos Victoria (2021); NASA; EFFIS; CAMS/ECMWF; NPS; National Geographic; Mongabay; Phys.org; Wikipedia.

ForestSat Research · The Future Trajectory

What Comes Next: The 2025 Nature Climate Change Forecast

83.9% of Species

The percentage of wildfire-vulnerable species that will face higher fire risk under a 2°C warming scenario (SSP2-4.5), according to a landmark 2025 study in Nature Climate Change. The study found global burned area will increase by 9.3% and that ~40% of South American species will experience more than 50% increases in fire exposure. (Ruffault et al., Nature Climate Change, March 2025)

High-Latitude Doubling

Fire season duration in high-latitude regions — boreal Canada, Siberia, Alaska — is projected to more than double under climate change. Species like wolverine, caribou, woodland caribou, and boreal forest songbirds face compounding threats from warming, permafrost thaw, and fire season extension. These are the ecosystems where fire activity is already accelerating fastest. (Ruffault et al., 2025; CAMS data 2021–2025)

Tipping Point: 20–25%

Scientists predict the Amazon's evapotranspiration system breaks down once 20–25% of the Amazon has been deforested — triggering a self-reinforcing conversion from rainforest to savanna. The Amazon is already approaching this threshold. This "tipping point" would represent an extinction-level event for thousands of Amazonian species and would permanently alter global climate. (Lovejoy & Nobre, 2018; Rainforest Foundation US, 2025)