Key Takeaways
- The planet hosts an estimated 8.7 million eukaryotic species, of which about 86% remain undescribed, primarily in tropical regions.
- Coral reefs, covering less than 0.1% of the ocean floor, support 25% of all marine species, including over 4,000 fish species.
- The Amazon rainforest contains 40,000 plant species, 3,000 freshwater fish, 1,300 bird species, and 427 mammal species.
- Since 1970, 68% average decline in monitored vertebrate populations worldwide.
- IUCN Red List assesses 142,577 species, with 41,415 threatened (29%).
- 1 million animal and plant species now threatened with extinction.
- Deforestation has destroyed 420 million hectares of forest since 1990.
- 85% of wetlands lost since 1700 globally.
- Amazon lost 11.88% of its forest cover since 1970 (434,000 km²).
- Invasive species affect 42% of endangered species.
- Agriculture uses 77% of global agricultural land for livestock, driving habitat loss.
- Plastic pollution: 14 million tons enter oceans yearly, harming 800+ marine species.
- Protected areas cover 17% terrestrial, 8% marine surface.
- Reforestation: 59 million hectares planted since 2000.
- IUCN Red List guided 48 species de-listings as recovered.
A vast majority of Earth's species remain undiscovered, but many are critically threatened.
Conservation
- Protected areas cover 17% terrestrial, 8% marine surface.
- Reforestation: 59 million hectares planted since 2000.
- IUCN Red List guided 48 species de-listings as recovered.
- Rewilding Europe restored 3 million hectares.
- Global protected area expansion: 230 million hectares added 2010-2020.
- Community forests manage 15% of world's forests.
- California condor population from 22 to 537 (2020).
- Black-footed ferret: from near-extinct to 300+ wild.
- Payments for ecosystem services cover 300 million hectares.
- Coral reef restoration: 100,000+ corals planted globally.
- Przewalski's horse: from 12 to 2,000 wild.
- Forest Landscape Restoration pledges: 350 million hectares.
- Marine protected areas increased 4x since 2010 to 8%.
- Giant panda downgraded from endangered to vulnerable.
- Humpback whale population recovered to 80% pre-whaling.
- Indigenous territories protect 80% of biodiversity.
- Seed banks: Svalbard holds 1 million+ samples.
- American bald eagle: from 417 pairs to 316 pairs nesting (1980 to 10,000+).
- European bison from 54 to 7,000.
- Mountain gorilla: doubled to 1,000+ since 2008.
- Tiger reserves in India increased numbers 6% yearly.
- Blue carbon projects restore 100,000 hectares mangroves.
- Assisted migration used for 50+ species.
- Global Environment Facility invested $20 billion in biodiversity.
- Captive breeding: 500 California condors released.
- 30x30 goal: 30% land/ocean protected by 2030.
- Wetland restoration: 1 million hectares in Europe.
- Saiga antelope: from 50,000 to 1.3 million.
- Coral gardening: 10,000 fragments outplanted in Florida.
- Forest certification: 450 million hectares FSC-certified.
- Translocation success: 44% for birds, 37% mammals.
- Seabird sanctuaries reduced declines by 50%.
Conservation Interpretation
Extinction Risks
- Since 1970, 68% average decline in monitored vertebrate populations worldwide.
- IUCN Red List assesses 142,577 species, with 41,415 threatened (29%).
- 1 million animal and plant species now threatened with extinction.
- Amphibian species: 41% threatened, highest of any group.
- Coral species: 44% of reef-building corals threatened.
- 25% of assessed conifers (52 species) critically endangered.
- Mammal extinction risk doubled in 20 years; 26% threatened.
- Bird species: 13% (1,400+) threatened with extinction.
- Shark and ray species: 37% threatened, up from 24% in 2014.
- 34% of assessed cycads (304 species) critically endangered.
- Global freshwater fish: 1/3 species threatened.
- 40% of cacti species threatened with extinction.
- 21% of reptiles (10,196 assessed) threatened.
- 33% of sharks and rays face extinction risk.
- 50% of primates threatened, highest mammalian order.
- 1 in 6 tree species (17,500) threatened globally.
- 85% of assessed cetaceans threatened or near-threatened.
- 37% of ray-finned fishes (Actinopterygii) threatened.
- 60% of assessed medicinal plants threatened.
- Vaquita porpoise: fewer than 10 individuals left.
- 75% of oceanic sharks and rays threatened.
- 28% of assessed marine species threatened.
- 52% of freshwater molluscs threatened.
- 40% of global insect species declining rapidly.
- 70% of monitored grassland bird populations declining.
- 90% decline in tiger populations since 1900.
- 97% decline in vaquita since 1997.
- 80% of insect biomass loss in German protected areas over 27 years.
- 60% decline in North American bird populations since 1970.
- 39% of European butterflies threatened or declining.
- Between 1900-2020, 73 vertebrate genera extinct.
Extinction Risks Interpretation
Habitat Loss
- Deforestation has destroyed 420 million hectares of forest since 1990.
- 85% of wetlands lost since 1700 globally.
- Amazon lost 11.88% of its forest cover since 1970 (434,000 km²).
- Coral reefs: 14% lost globally since 2009, projected 90% by 2050.
- 50% of global peatlands drained or degraded.
- Indonesia lost 9.7 million hectares of primary forest 2002-2019.
- Brazil's Atlantic Forest reduced to 12% of original 1.5 million km².
- 35% of mangroves lost since 1980 (992,000 hectares).
- Congo Basin lost 5.6% primary forest 2001-2022.
- Global grassland conversion: 70% altered by humans.
- Australian Great Barrier Reef: 50% live coral cover lost since 1950s.
- 87% of Borneo's lowland forest (Sunda shelf) gone.
- Caribbean coral reefs: 50% live coral cover lost in 30 years.
- Global seagrass loss: 7% per year in some regions.
- 80% of original tallgrass prairie in North America lost.
- Sumatra lost 23% primary forest 2001-2022.
- 40% of global estuaries degraded.
- Madagascar lost 2% forest cover annually 2000-2012.
- 90% of West African mangroves threatened by loss.
- Global dryland degradation affects 40% of land.
- Philippines lost 80% primary forest since 1900.
- 30% of global kelp forests lost in recent decades.
- Chaco forest in Paraguay: 20% lost 2001-2020.
- 75% of European wetlands lost since 1900.
- Global savanna loss: 48 million hectares since 2000.
- Arctic tundra: 14% shrub cover increase, but habitat shift.
- Over 50% of global river flow fragmented by dams.
- 68% of primate habitat lost in last 50 years.
Habitat Loss Interpretation
Species Diversity
- The planet hosts an estimated 8.7 million eukaryotic species, of which about 86% remain undescribed, primarily in tropical regions.
- Coral reefs, covering less than 0.1% of the ocean floor, support 25% of all marine species, including over 4,000 fish species.
- The Amazon rainforest contains 40,000 plant species, 3,000 freshwater fish, 1,300 bird species, and 427 mammal species.
- Indonesia is home to 17% of the world's total number of bird species, with 1,539 species recorded.
- A single hectare of tropical rainforest can contain up to 700 tree species, more than the total tree species in Canada and the US combined.
- The world's oceans contain an estimated 2.2 million eukaryotic marine species, with only 240,000 described.
- Madagascar has 12,000 endemic plant species, representing 5% of the world's flora despite covering only 0.4% of land area.
- The Great Barrier Reef has over 1,500 fish species, 411 types of hard corals, and 4,000 mollusc species.
- Brazil leads with 15,000-20,000 plant species, including 40% endemics, making it the most plant-diverse country.
- Insect species number around 10 million globally, with beetles comprising 40% at 400,000 described species.
- The Congo Basin hosts 10,000 plant species, 1,000 bird species, and 400 mammal species.
- Australia has over 1,800 endemic bird species and 80% of the world's marsupials.
- A hectare of Costa Rican rainforest can have 200-300 tree species.
- Global fungal species estimated at 2.2-3.8 million, with only 120,000 described.
- The Sundarbans mangrove forest supports 260 bird species, 35 reptile species, and 120 fish species.
- Colombia has 10% of world's flora with 30,000 plant species and 1,900 bird species.
- Deep-sea vents host unique species like 500+ new ones discovered since 1977.
- New Caledonia has 3,370 endemic plant species, 75% of its flora.
- Global butterfly species exceed 17,500, with 20% threatened.
- Peruvian Andes harbor 20,000 plant species, 1/5 of world's total.
- Antarctic ice-free areas support 1,000+ terrestrial species despite harsh conditions.
- Wallace's Line separates Asian and Australasian biotas with 10,000+ island species.
- Global seagrass species number 72, supporting 17 fish families.
- Ethiopian highlands have 7,000 plant species, 800 endemics.
- Borneo has 15,000 plant species, 3rd most diverse after Amazon and Andes.
- Global bryophyte (mosses, liverworts) species at 20,000.
- Galapagos Islands host 180 endemic vascular plants.
- Global lichen species estimated 19,400 described.
- Hawaiian Islands have 10,000 endemic species, mostly insects.
- Global fern species number 12,000, hotspots in tropics.
Species Diversity Interpretation
Threats
- Invasive species affect 42% of endangered species.
- Agriculture uses 77% of global agricultural land for livestock, driving habitat loss.
- Plastic pollution: 14 million tons enter oceans yearly, harming 800+ marine species.
- Overfishing: 34.2% of fish stocks overfished in 2017.
- Climate change projected to commit 15-37% terrestrial species to extinction by 2050.
- Poaching: 35,000 African elephants killed yearly.
- Pesticides contribute to 40% insect decline.
- Urban expansion: 1.2 million km² converted 1992-2013.
- Illegal wildlife trade worth $7-23 billion annually.
- Nitrogen pollution affects 86% of coastal ecosystems.
- Roads fragment habitats, affecting 80% of amphibian species.
- Disease outbreaks: Chytrid fungus wiped out 90 species of amphibians.
- Mining: 180,000 hectares deforested yearly in Amazon.
- Light pollution affects 30% of vertebrates and 60% of invertebrates.
- Oil spills: Deepwater Horizon killed 100,000+ marine mammals/birds.
- Water extraction: 41% of global rivers altered by dams.
- Bushmeat trade: 5 million tons consumed yearly in Africa.
- Ocean acidification threatens 25% of marine species.
- Soy expansion drove 80% of Cerrado deforestation.
- Palm oil: 8 million hectares planted, replacing forests.
- Fast fashion pollutes with 20% global wastewater.
- Biofuel production caused 5% global cropland expansion.
- Trophy hunting: 200 lions, 600 elephants killed yearly legally.
- Microplastics ingested by 90% of seabirds.
- Acid rain damages 30% of forests in Europe.
- Ghost fishing: 640,000 tons gear lost yearly, killing millions.
Threats Interpretation
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