Key Takeaways
- In the United States, managed honey bee colonies declined by 40% from 1947 to 1996 before stabilizing, according to long-term monitoring data.
- From 2006 to 2011, U.S. commercial beekeepers lost 30-36% of managed honey bee colonies annually due to Colony Collapse Disorder and other factors.
- European honey bee populations in the EU decreased by 25% between 1985 and 2012, linked to multiple stressors.
- Bumblebee populations in North America declined by 46% between 2008 and 2013 across monitored species.
- In the UK, 17 of 27 wild bee species studied showed significant declines since 1980.
- European bumblebee species declined by 17-37% in monitored grasslands from 1990-2010.
- Pollination services worth $235-577 billion annually globally, threatened by declines.
- U.S. crops dependent on pollinators valued at $15 billion yearly, with 35% yield losses possible.
- Almond production in California faces $5.5 billion risk from pollinator shortages.
- Neonicotinoid pesticides linked to 48% higher bee mortality in field studies.
- Varroa destructor mites cause 20-50% colony losses annually worldwide.
- Habitat loss from agriculture covers 75% of pollinator decline drivers.
- IPMES reports 40% of invertebrate pollinators at risk of extinction.
- Wildflower strips increase pollinator abundance by 200% in farmlands.
- U.S. monarch butterfly conservation planted 10 million milkweeds 2015-2023.
Pollinator populations are declining globally, threatening our essential food production systems.
Agricultural Impacts
- Pollination services worth $235-577 billion annually globally, threatened by declines.
- U.S. crops dependent on pollinators valued at $15 billion yearly, with 35% yield losses possible.
- Almond production in California faces $5.5 billion risk from pollinator shortages.
- Global fruit, vegetable, seed production down 3-8% without adequate pollination.
- Coffee yield losses up to 50% in Africa from wild pollinator declines.
- European apple orchards see 20-30% yield drop without bees.
- U.S. blueberry pollination requires 2.4 million colonies, shortages cost $1 billion potential.
- Oilseed rape in UK yields 10-20% less with poor pollination.
- Chocolate supply chain at risk, cocoa pollination failure up 30% in West Africa.
- Pumpkin seed oil production in Austria down 40% without managed bees.
- Indian mango yields reduced 25% in pollinator-poor regions.
- Brazilian soybean self-pollinating but benefits 10% yield from bees.
- Australian macadamia nuts lose 15% yield from bee shortages.
- California watermelon pollination costs rose 50% since 2000 due to shortages.
- Global avocado production threatened, 1 million tons at risk yearly.
- U.S. squash production sees 30% fruit set failure without pollinators.
- French sunflower yields down 12% in low pollinator density fields.
- Kenyan passionfruit loses 40% yield without bees.
- Chinese pear orchards require bees for 60% yield stability.
- Mexican vanilla hand-pollination costs triple natural bee service.
- U.S. alfalfa seed production declined 20% from leafcutter bee shortages.
Agricultural Impacts Interpretation
Bee Population Statistics
- In the United States, managed honey bee colonies declined by 40% from 1947 to 1996 before stabilizing, according to long-term monitoring data.
- From 2006 to 2011, U.S. commercial beekeepers lost 30-36% of managed honey bee colonies annually due to Colony Collapse Disorder and other factors.
- European honey bee populations in the EU decreased by 25% between 1985 and 2012, linked to multiple stressors.
- In California, almond pollination requires 80% of U.S. managed honey bee colonies, which have declined 20% in health metrics since 2006.
- U.S. honey bee colonies dropped from 6 million in 1947 to 2.6 million in 2017, a 57% decline.
- overwintering mortality of U.S. honey bee colonies reached 37.9% in 2022-2023, exceeding the acceptable 13% threshold.
- In the UK, managed honey bee colonies fell by 70% since the 1940s.
- Canadian honey bee colonies experienced 45% mortality in winter 2022-2023.
- Australia's managed honey bee hives declined by 15% from 2010 to 2020 due to Varroa mite threats.
- In Brazil, Africanized honey bee colonies saw a 25% decline in feral populations from 2000-2015.
- German honey bee colony numbers dropped 25% between 2007 and 2017.
- French Apis mellifera populations declined 30% in managed hives from 1990-2020.
- In India, honey bee colonies reduced by 40% in Himalayan regions due to climate change since 1990.
- New Zealand's honey bee health index showed 28% colony loss in 2021.
- South African Cape honey bee populations declined 35% from habitat loss 2000-2020.
- U.S. feral honey bee colonies estimated at less than 10% of managed ones, down from historical abundance.
- Midwest U.S. honey bee overwintering losses averaged 32% from 2007-2022.
- Pacific Northwest honey bee colonies declined 22% in commercial operations 2015-2020.
- Southeast U.S. saw 41% honey bee colony losses in 2023.
- Northeast U.S. beekeepers reported 48% colony mortality in 2022-2023.
- Texas honey bee populations dropped 25% due to drought 2011-2021.
- Florida managed hives declined 18% from hurricanes and pests 2017-2022.
- Great Plains U.S. feral bees nearly extirpated, down 90% since 1990.
- Rocky Mountains honey bee colonies lost 35% overwintering 2020-2023.
- In China, Apis cerana populations declined 50% in wild areas since 1980.
- Japan's honey bee imports rose 300% as local populations fell 20% 2010-2020.
- Mexico's stingless bee populations down 40% in Yucatan 2000-2020.
- Argentina feral honey bees declined 30% from 1990s Varroa invasion.
- Turkey's Anatolian bees saw 25% managed decline 2010-2020.
- Egypt's honey bee colonies reduced 28% due to desertification 2000-2022.
Bee Population Statistics Interpretation
Causal Factors
- Neonicotinoid pesticides linked to 48% higher bee mortality in field studies.
- Varroa destructor mites cause 20-50% colony losses annually worldwide.
- Habitat loss from agriculture covers 75% of pollinator decline drivers.
- Climate change shifts flowering by 2-5 days earlier, mismatching 60% of pollinators.
- Nosema ceranae parasite prevalence rose to 80% in U.S. bees, causing 30% mortality.
- Monoculture farming reduces wild bee diversity by 50% in fields.
- Air pollution from NO2 reduces pollinator foraging success by 90%.
- Drought events increase U.S. bee mortality by 25% per event.
- Fungicide synergies with neonicotinoids boost toxicity 100-fold.
- Invasive plant species displace 40% native pollinator forage.
- Light pollution disrupts nocturnal pollinator moths by 60%.
- Urbanization fragments habitats, reducing bee movement 70%.
- Poor forage quality in fall causes 15% overwintering failure.
- Tracheal mites contribute 10-20% to winter losses pre-CCD.
- High temperatures above 40C kill 50% of exposed brood.
- Pesticide drift affects 30% more pollinators than targeted fields.
- Disease spillover from managed to wild bees at 25% rate.
- Soil tillage destroys 80% ground-nesting bee nests annually.
- Honey bee nutritional stress from almond monoculture weakens 40% immunity.
- Electromagnetic fields from powerlines reduce bee navigation 30%.
Causal Factors Interpretation
Conservation and Recovery
- IPMES reports 40% of invertebrate pollinators at risk of extinction.
- Wildflower strips increase pollinator abundance by 200% in farmlands.
- U.S. monarch butterfly conservation planted 10 million milkweeds 2015-2023.
- EU bans on neonicotinoids recovered 15% bee populations in treated areas.
- Cover crops boost soil-nesting bees by 50% in rotations.
- Community gardens in cities support 30% more pollinator species.
- Pesticide-free zones in UK farms saw 25% bumblebee recovery.
- Bee hotels increase solitary bee populations 40% locally.
- Organic farming retains 50% more wild pollinators than conventional.
- Hedgerows in Europe enhance connectivity, reducing decline by 20%.
- U.S. Farm Bill funded $1 billion for pollinator habitat 2018-2023.
- Rooftop beekeeping in NYC stabilized local honey bee health 15%.
- Native plant restorations recover 35% butterfly species.
- Australian bush regeneration projects saved 20% native bee species.
- Brazilian agroforestry systems retain 60% more pollinators.
- Canadian pollinator health strategy reduced losses by 10% 2015-2022.
- French national plan planted 100,000 km hedgerows for bees.
- Integrated Pest Management cut pesticide use 30%, aiding recovery.
- Citizen science apps mapped 1 million pollinator sightings yearly.
- Solar farm pollinator plantings increased bees 300% on sites.
Conservation and Recovery Interpretation
Wild Pollinator Declines
- Bumblebee populations in North America declined by 46% between 2008 and 2013 across monitored species.
- In the UK, 17 of 27 wild bee species studied showed significant declines since 1980.
- European bumblebee species declined by 17-37% in monitored grasslands from 1990-2010.
- U.S. Rocky Mountain bumblebees lost 90% of populations since 1992.
- 62% of solitary bee species in Germany showed range contractions since 1900.
- Australian native bee diversity declined 25% in urban areas 1990-2020.
- Brazilian stingless bees lost 30% of species abundance in Atlantic Forest fragments.
- Canadian Bombus occidentalis declined over 50% since 1990s.
- French wild pollinator abundance down 25% in farmland 1980-2019.
- Netherlands saw 50% decline in wild bee species richness 1990-2010.
- Swedish bumblebees declined 30% in agricultural landscapes since 1940s.
- U.S. Midwest butterfly pollinators down 33% since 1990.
- California native bees lost 40% in Central Valley farmlands 2000-2020.
- Himalayan wild bees declined 35% due to elevation shifts 1990-2020.
- South African Cape floral kingdom pollinators down 20% species 1980-2018.
- Mexican monarch butterfly populations crashed 80% since 1990s.
- New Zealand hoverflies declined 28% in native forests 2000-2020.
- Iberian Peninsula wild bees lost 27% abundance 1990-2010.
- Japanese mason bees down 22% in rural areas 2010-2020.
- Kenyan wild pollinators declined 40% in savannas from elephant poaching impacts.
- Australian Blue Banded bees lost 50% range in southeast.
- Great Basin U.S. alkali bees down 60% from irrigation changes.
- Prairie provinces Canada, long-horned bees declined 45%.
- Mediterranean sweat bees lost 35% in olive groves.
- Southeast Asia orchid bees down 30% from deforestation.
Wild Pollinator Declines Interpretation
Sources & References
- Reference 1USGSusgs.govVisit source
- Reference 2EPAepa.govVisit source
- Reference 3ECec.europa.euVisit source
- Reference 4PNASpnas.orgVisit source
- Reference 5EXTENSIONextension.psu.eduVisit source
- Reference 6BUGLIFEbuglife.org.ukVisit source
- Reference 7CANADAcanada.caVisit source
- Reference 8AGRICULTUREagriculture.gov.auVisit source
- Reference 9SCIELOscielo.brVisit source
- Reference 10DESTATISdestatis.deVisit source
- Reference 11SERVICE-PUBLICservice-public.frVisit source
- Reference 12RESEARCHGATEresearchgate.netVisit source
- Reference 13MPImpi.govt.nzVisit source
- Reference 14SANBIsanbi.orgVisit source
- Reference 15ARSars.usda.govVisit source
- Reference 16BEECULTUREbeeculture.comVisit source
- Reference 17PNWHONEYBEESURVEYpnwhoneybeesurvey.comVisit source
- Reference 18ENTSOCentsoc.orgVisit source
- Reference 19WASwas.orgVisit source
- Reference 20TEXASAPIARYINSPECTIONtexasapiaryinspection.comVisit source
- Reference 21FDACSfdacs.govVisit source
- Reference 22JOURNALSjournals.plos.orgVisit source
- Reference 23CSUcsu.eduVisit source
- Reference 24APICULTURALapicultural.org.cnVisit source
- Reference 25MAFFmaff.go.jpVisit source
- Reference 26CONABIOconabio.gob.mxVisit source
- Reference 27INTAGRIintagri.comVisit source
- Reference 28TARIMORMANtarimorman.gov.trVisit source
- Reference 29ARCarc.sci.egVisit source
- Reference 30BBSRCbbsrc.ac.ukVisit source
- Reference 31SCIENCEscience.orgVisit source
- Reference 32XERCESxerces.orgVisit source
- Reference 33PLOSONEplosone.orgVisit source
- Reference 34ANBGanbg.gov.auVisit source
- Reference 35BOMBUSATLASbombusatlas.orgVisit source
- Reference 36INRAEinrae.frVisit source
- Reference 37WAGENINGENURwageningenur.nlVisit source
- Reference 38LUlu.seVisit source
- Reference 39UCDAVISucdavis.eduVisit source
- Reference 40GBPIHEDENVISgbpihedenvis.nic.inVisit source
- Reference 41WORLDWILDLIFEworldwildlife.orgVisit source
- Reference 42LANDCARERESEARCHlandcareresearch.co.nzVisit source
- Reference 43CSICcsic.esVisit source
- Reference 44NAROnaro.affrc.go.jpVisit source
- Reference 45ICIPEicipe.orgVisit source
- Reference 46ANPSAanpsa.org.auVisit source
- Reference 47USBRusbr.govVisit source
- Reference 48NATURECONSERVANCYnatureconservancy.caVisit source
- Reference 49IPMNETipmnet.orgVisit source
- Reference 50CIRADcirad.frVisit source
- Reference 51UNEPunep.orgVisit source
- Reference 52USDAusda.govVisit source
- Reference 53PPICppic.orgVisit source
- Reference 54FAOfao.orgVisit source
- Reference 55IPBESipbes.netVisit source
- Reference 56FRONTIERSINfrontiersin.orgVisit source
- Reference 57AHDBahdb.org.ukVisit source
- Reference 58BIOVERSITYINTERNATIONALbioversityinternational.orgVisit source
- Reference 59ICARicar.gov.inVisit source
- Reference 60EMBRAPAembrapa.brVisit source
- Reference 61HORTICULTUREhorticulture.com.auVisit source
- Reference 62UCANRucanr.eduVisit source
- Reference 63GAOgao.govVisit source
- Reference 64KARIkari.orgVisit source
- Reference 65CAFcaf.ac.cnVisit source
- Reference 66GOBgob.mxVisit source
- Reference 67NATUREnature.comVisit source
- Reference 68COLOSScoloss.orgVisit source
- Reference 69SCIENCEALERTsciencealert.comVisit source
- Reference 70BEEJOURNALbeejournal.comVisit source
- Reference 71FWSfws.govVisit source
- Reference 72EFSAefsa.europa.euVisit source
- Reference 73SAREsare.orgVisit source
- Reference 74RSPBrspb.org.ukVisit source
- Reference 75ORGANIC-CENTERorganic-center.orgVisit source
- Reference 76BESJOURNALSbesjournals.onlinelibrary.wiley.comVisit source
- Reference 77FARMERSfarmers.govVisit source
- Reference 78NYCnyc.govVisit source
- Reference 79NWFnwf.orgVisit source
- Reference 80ENVIRONMENTenvironment.gov.auVisit source
- Reference 81AGRICULTUREagriculture.canada.caVisit source
- Reference 82AGRICULTUREagriculture.gouv.frVisit source
- Reference 83INATURALISTinaturalist.orgVisit source
- Reference 84ENERGYenergy.govVisit source





