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The Energetic Cost of Pollen Collection Bees use as much energy collecting pollen through “floral buzzing” as they do taking off in flight, a study shows. Scientists have found the vibrations bumblebees use to shake pollen loose from flowers are among the most exhausting behaviours they perform, forcing bees to “carefully choose” which flowers are worth visiting. The Study's Findings The study, released by the Royal Society, is the first to directly measure the energy cost of floral sonication, or “buzz pollination” – where bees vibrate flowers to extract pollen. Natacha Rossi, a University of Sussex research fellow who led the study, said: “As nectar availability shifts due to climate change or habitat loss, the energetic demands of pollination could influence bee behaviour and, ultimately, where bees forage and which plants they pollinate. The Data Analysis Using lasers and respirometry equipment to monitor three colonies of buff-tailed bumblebees, researchers discovered that a single “buzzing event” required about the same amount of energy as a flight take-off. Because buzzing can last longer, the total drain on energy can be even greater. The metabolic rate of a floral buzzing bee is more than 30 times higher than its resting metabolism, according to the study, making the process among its most energetically demanding behaviours. The Impact Analysis The researchers warned that declining nectar supplies caused by climate crisis and habitat destruction could intensify the strain on pollinators. Prof Mario Vallejo-Marin, at Uppsala University, said: “We long suspected that buzz pollination was an energetically expensive affair. We can now put a number to it and begin making quantitative predictions of how it could affect the ecology and evolution of bees and buzzpollinated flowers.” The Prediction The study points out that the energetic drain on the bee does not stop when the pollination stops. According to the paper, after the bee vibrates the pollen loose, it must engage in a “grooming and pollen-packing phase”. This grooming takes even more energy. The bee then has to force a high-power take-off to carry its new, heavier load away, making the whole process a demanding two-phase sequence.

The Lead: A Spring Showcase of Contrasting Pollination TacticsOn a sunny May morning along a former railway line, thousands of flowers display a startling range of pollination mechanisms—from the violent, explosive release of pollen in broom (Cytisus scoparius) to the precise, almost surgical delivery by white dead‑nettle (Lamium album) and the generous, pollinator‑free bounty of dandelions (Taraxacum officinale).Location: former railway line, May morningSpecies observed: broom, white dead‑nettle, dandelionPrimary pollinators: bumblebees, common carder beeBroom’s Explosive Pollen Release: Violence in the Keel PetalWhen a bumblebee lands on a broom flower it finds no nectar; the moment its abdomen contacts the keel petal, ten stamens and a coiled stigma burst free, slamming pollen onto the insect and delivering a “gut‑punch.” The trap is triggered in almost every flower, ensuring both pollen export and collection in a single, forceful act.Mechanism: explosive stamens and stigma releaseEffect on pollinator: brief contact, no nectar rewardOutcome: simultaneous pollen deposition and collectionWhite Dead‑Nettle’s Precise Pollen Transfer: Gentle EngineeringIn contrast, white dead‑nettle hides its stamens inside a hooded standard petal. A visiting common carder bee probes the flower’s throat for nectar; hidden stamens deposit a dab of pollen onto the bee’s thorax, which is later deposited on the next flower’s fork‑tipped stigma. The process is subtle, causing no apparent distress to the pollinator.Mechanism: concealed stamens within hooded petalPollinator interaction: gentle pollen placementResult: efficient cross‑pollination with minimal disturbanceDandelions’ Redundant Generosity: The Free Lunch for BeesDandelions produce abundant nectar and pollen but are apomictic, setting seed without fertilisation. For bumblebees the flowers are an “all‑you‑can‑eat” buffet, providing essential spring energy even though the plant does not rely on pollinators for reproduction.Reproductive strategy: apomixis (self‑seeded)Pollinator role: energy source, not required for seed setEcological benefit: supports pollinator populations during early seasonEcological Implications: Why Diverse Strategies MatterThe coexistence of violent, precise, and redundant pollination tactics illustrates the evolutionary arms race between plants and their visitors. Violent mechanisms like broom’s may deter less efficient pollinators, while gentle precision maximises pollen placement. Redundant generosity, as seen in dandelions, supports pollinator populations during scarce periods, indirectly sustaining ecosystem health.Evolutionary pressure: plant‑pollinator co‑adaptationCommunity impact: varied strategies sustain diverse pollinator assemblagesConservation insight: preserving a mix of pollination types benefits ecosystem resilienceLooking Ahead: Future Directions for Plant‑Pollinator CoevolutionAs climate change reshapes flowering phenology, the balance between these strategies could shift. Species that can both attract a wide range of pollinators and ensure successful fertilisation—whether through force, finesse, or self‑sufficiency—may gain a competitive edge, influencing future biodiversity patterns.Potential shift: altered timing of flower bloom and pollinator activityAdaptive advantage: flexible pollination mechanismsResearch focus: monitoring how climate impacts plant‑pollinator dynamics

After a wet winter that left his orchard hives empty, Richard Bray of Haywood Farm, St Mabyn, Cornwall, discovered that none of his 250‑strong apiary survived – a first in 75 years of beekeeping on the farm.Key Developments250 hives reduced to 7 after winter.Inspection by the National Bee Unit points to the varroa mite as the primary cause.The British Beekeepers’ Association reports similar catastrophic losses elsewhere, though full data won’t be available until July.Contributing factors may include a wet Jan‑Feb, extended bee season and possible pathogens.Data & Market ImpactTypical UK apiary generates ~£150‑£200 per hive annually from honey, pollination fees and sales of wax; loss of 243 hives represents a potential £36,500‑£48,600 hit for Bray alone.Nationally, beekeeping contributes an estimated £1.5 bn to the UK economy; a 5% drop in colony numbers would shave off roughly £75 m in pollination services.Varroa‑related mortality has risen 30% year‑on‑year in recent UK surveys, signalling a growing threat to food security.Why This MattersThe disappearance of colonies jeopardises:Crop pollination for fruit orchards, oilseed rape and other pollinator‑dependent crops, potentially reducing yields.Rural livelihoods, as many small‑scale beekeepers supplement farm income with honey and related products.Ecological resilience, since bees are keystone species supporting biodiversity.Expert InsightIan Campbell of the British Beekeepers’ Association warns that the varroa mite acts like a “tipping‑point” stressor: when combined with adverse weather, it overwhelms colony defenses. He notes that the unusually long season last year may have allowed mites to reproduce unchecked, while bees missed synchronisation with flowering periods, compounding the loss.What Happens NextBeekeepers are likely to intensify mite‑control regimes, including breeding for resistant bee strains and adopting integrated pest‑management. Government agencies may fund targeted monitoring and subsidise replacement colonies to protect pollination services. In the longer term, climate‑adapted beekeeping practices and diversified apiary locations could mitigate the risk of another wholesale loss.

A remarkable cactus species in eastern Brazil has evolved a unique method to attract bats for pollination. Coleocephalocereus goebelianus grows a fuzzy structure, known as a cephalium, near its flowers. This unusual body part acts as an acoustic beacon, focusing the high-pitched squeaks made by bats and helping them navigate towards the flower.Bats use echolocation to navigate and find objects in the dark by emitting high-frequency sounds, which are beyond human hearing. The cephalium's dense structure may also help reduce background noise, making the bats' echolocation clearer.The cactus's tall stature above surrounding plants amplifies its acoustics, making it easier for bats to locate the flower. This adaptation is crucial for the cactus's pollination, as it blooms at night and relies on bats as pollinators.Similar adaptations can be seen in carnivorous pitcher plants, which use curved dish-like openings to reflect bat calls and help them find the pitchers. In these cases, the bats roost inside the pitchers, and their dung fertilizes the plant.This unique evolutionary strategy highlights the fascinating ways in which plants have adapted to their environments to ensure pollination and survival.

Fab 5 Freddy, born Fred Brathwaite, has penned a memoir that serves as an 'all-access pass' to the creative explosion of New York in the 1970s and 80s. The book, 'Everybody's Fly: A Life of Art, Music, and Changing the Culture,' chronicles Brathwaite's journey from a young man in Bed-Stuy, Brooklyn, to becoming a pivotal figure in connecting Black art forms like graffiti and hip-hop with the predominantly white downtown art world.Brathwaite's story is intertwined with that of Jean-Michel Basquiat and Keith Haring, other street artists whose work has become iconic. The memoir also features appearances by Blondie, Andy Warhol, and the Clash, highlighting the era's cross-cultural pollination.The book offers a firsthand account of legendary venues like CBGB and Paradise Garage, where Brathwaite experienced the raw energy of punk and dance music. He recalls visiting CBGB as a 'Black secret agent on a mission' and describes Paradise Garage as a 'transformational experience.'While reading Brathwaite's story in 2026 is bittersweet, it also offers a hopeful message. New York, despite being in dire economic straits at the time, gave birth to magnificent cultural movements. For Fab 5 Freddy, rap and punk represented 'urban youth going against the grain, inventing their own culture, creating their own fun, responding to the world as it was.'The enduring legacy of this era is that subcultures can emerge and thrive even in challenging times, leaving a lasting impact on art, music, and culture. As Brathwaite puts it, 'everybody's fly' – a testament to the power of creative expression and community.