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Paul Williams

@paulwilliamsnhm.bsky.social
2K followers 108 following 70 posts

Bumblebee taxonomy / evolution / biogeography - at NHM London: guides to the species of the Himalaya, Sichuan, North China, & North America working with genes & morphology pic: Yuzhu Mt, Kunlun range

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Ian Beavis @ianbeavis.bsky.social · 30/09/2026
Queen Red-tailed Bumblebee in Calverley Grounds - first one I've seen for a while as they've mostly all gone into hibernation
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Ian Beavis @ianbeavis.bsky.social · 26/09/2026
Foraging worker Buff-tailed Bumblebee (note full pollen baskets on hind legs) at ivy in Woodbury Park Cemetery.
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David Díez del Molino 🇪🇸🇸🇪🏳️‍🌈 @indianadiez.bsky.social · 24/09/2026
New research in @molecularecolup.bsky.social! Museum collections help us understand the genomic consequences of the insect biodiversity crisis 🐝🧬🏛️ We analyzed specimens spanning 150 years to track genomic diversity in the common carder bee in Sweden. OA onlinelibrary.wiley.com/doi/full/10....
Sampling details
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Syd Cannings @sydcannings1.bsky.social · 21/09/2026
Flew over BC's spectacular Coast Mountains again on my way back home to Whitehorse today... gorgeous as usual but my, those glaciers are getting smaller every year! #climatechange
aerial view of icefields, mountains,  and valley glaciers
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Pieter Haringsma @haringsmapieter.bsky.social · 19/09/2026
Bombus Consobrinus (Lushatthumla) is the bumblebee with the longuest tongue of Scandinavia. She is dependend on Monkshood (Tyrihjelmen). On the first shot she cleans her tongue. Funasdalen, Sweden, July 2026. Enjoy!
Bombus Consobrinus, Lushatthumla, TyrihjelmBombus Consobrinus, Lushatthumla, Tyrihjelm
BumblebeeBombus Consobrinus, Lushatthumla, Tyrihjelm
Bee, ZwedenBombus Consobrinus, Lushatthumla, Tyrihjelm
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Molecular Biology and Evolution @molbioevol.bsky.social · 17/09/2026
Mullin et al. use WGS from 101 museum specimens of British/Irish moss carder bumblebees from 1894-2019 to reveal a dramatic drop in genetic diversity: ∼24.6% decrease in heterozygosity and a 2.86-fold increase in ROH 🔗 academic.oup.com/mbe/article/... 📷 Gavin Broad #societyjournal #naturalhistory
MBE | Museum specimens reveal the genomic consequences of long-term population decline in an insect pollinator

Photo: Gavin Broad
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Ian Beavis @ianbeavis.bsky.social · 10/09/2026
Queens of Early Bumblebee and Tree Bumblebee at Pembury Walks and Brakeybank Wood
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Ian Beavis @ianbeavis.bsky.social · 10/09/2026
This patrolling male dronefly (Eristalis tenax) was very interested in the male Buff-tailed Bumblebee scent-marking a bracken frond on its own mate-searching patrol route. It must have been detecting the bee pheromone.
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Paul Williams @paulwilliamsnhm.bsky.social · 07/09/2026
A British bumblebee on a Sumatran mountain? The strange case of Bombus melanopoda - see www.researchgate.net/publication/...
Lateral view of the NHMUK holotype of Bombus melanopoda, described as collected in Sumatra. 
The bumblebee taxon Bombus melanopoda Cockerell is known only from the holotype female. Confusion had arisen because the holotype of B. melanopoda is labelled ‘Sumatra’, appears in the Natural History Museum (NHM) accession catalogue as originating from there, and is similar in its near-all-black colour pattern of the hair to many individuals of both of the other bumblebee species known from Sumatra: B. rufipes Lepeletier de Saint-Fargeau and B. senex Snellen van Vollenhoven. However, a COI
barcode obtained from this individual is identical to another from the European species B. ruderatus (Fabricius) and the morphology matches that of many British females of B. ruderatus. Therefore, B. melanopoda is synonymised here with B. ruderatus (syn. n.).
This is a salutary tale for not accepting data labels at face value without question and demonstrates again the value of COI barcodes.
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Ian Beavis @ianbeavis.bsky.social · 01/09/2026
I've seen hardly any worker Tree Bumblebees this year, but now all of a sudden I'm seeing queens in several different places. This one was in Calverley Grounds today.
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Andrey P. @sibhedgehog.bsky.social · 14/06/2026
A male of Bombus modestus, mostly-Asian taiga species, feeding on oregano in my garden. July 12th, 2025.
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Cory S. Sheffield 🇨🇦🐝🌺📸🎸🎨 @corysheffield.bsky.social · 22/08/2026
Two male specimens of Bombus bimaculatus Cresson, with a different colour form shown in each triplet; first three show the typical form, the next three show a male with much more yellow on the abdomen. #bumblebees #beesofcanada
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THE FAR SIDE DAILY @bot.cowtools.org · 20/08/2026
For many weeks, the two species had lived in mutual tolerance of one another. And then, without provocation, the hornets began throwing rocks at Ned’s house.
For many weeks, the two species had lived in mutual tolerance of one another. And then, without provocation, the hornets began throwing rocks at Ned’s house.
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Jenn Rose @jdrose.bsky.social · 20/08/2026
Eguzkilore, a culturally important flower in the Basque Country, visited by Bombus pascuorum. I'm sure a nice treat in an otherwise unusually dry environment... 📍Aizkorri-Aratz
Eguzkilore, a low-laying ground thistle, wedged next to a rock. In the center is an orange Bombus. Eguzkilore, a low laying ground thistle, visited by a Bombus pascuorum. View of Aizkorri in a very dry environment. The view from the top of the Aizkorri mountain range. Looking out to a sea of clouds.
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Paul Williams @paulwilliamsnhm.bsky.social · 19/08/2026
www.nature.com/articles/s41...
nature.com
Significant fine-scale population differentiation in two common bumblebee species (B. pascuorum and B. lapidarius) detected in Northern Europe - Heredity
Heredity - Significant fine-scale population differentiation in two common bumblebee species (B. pascuorum and B. lapidarius) detected in Northern Europe
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Pieter Haringsma @haringsmapieter.bsky.social · 18/08/2026
Splendid Bombus Lapponicus (Lapphumle) males foraging in Sweden, area Funasdalen last july. Yellow on T1 and yellow hairs on the tip of the abdomen.
Bombus Lapponicus male foraging, Lapphumle, SwedenBombus Lapponicus, Lapphumle, SwedenBombus Lapponicus male foraging, Lapphumle, SwedenBombus Lapponicus male foraging, Lapphumle, Sweden
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Pieter Haringsma @haringsmapieter.bsky.social · 17/08/2026
The lovely Bombus mastrucatus (formerly named Wurflenii) shot in Sweden last july. Look at the strong jaws of this bee. It often opens the flowers at the top of the corolla stealing nectar without pollination. Beacause of this the scandinavian name is Tyvhumle wich means "stealing bumblebee".
Bombus mastrucatus foraging in SwedenBombus mastrucatus, Tyv hummleBombus mastrucatus foraging in Sweden
Ruige hommel, TyvhumleTyvhumle, Sweden
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Colin Carlson @colincarlson.bsky.social · 10/08/2026
I wrote about a reason not to use generative AI in your writing that I haven't seen anyone talking about. Once I realized this, banning GenAI in our lab's writing became a no-brainer. Feel free to share, I think this is probably useful especially for trainees: www.carlsonlab.bio/thoughts/the...
carlsonlab.bio
The only reason you’ll ever need not to write with AI — The Carlson Lab
Over the last year, our lab has been developing a policy on AI use. To do this, we did three main things: We read a lot of academic publications and tech news. We set up an #ai channel on our la...
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Distributed System of Scientific Collections @dissco.bsky.social · 11/08/2026
Good to see the #IUCN reiterate what has been our mantra all along: #NaturalHistory Collections are not repositories of the past but research-active infrastructures ready to address current and future global challenges: www.dissco.eu/iucn-natural... #biodiversity #taxonomy @eurotaxonomy.cetaf.org
dissco.eu
ICUN Position Statement on the vital role of biological collections in biodiversity conservation - DiSSCo
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Mario Vallejo-Marin @nicrodemo.bsky.social · 06/08/2026
Did you know that bee buzzes on flowers are rich in harmonics? We investigated how harmonics, which give musical instruments their unique sounds, affect buzz pollination. Very happy to see this paper published @jexpbiol.bsky.social Thanks @hfspo.bsky.social for the support! doi.org/10.1242/jeb....
spectrogram of a bee flying and buzzing
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Pieter Haringsma @haringsmapieter.bsky.social · 25/07/2026
Recently did a 12 day bumblebee trip to Sweden, train, Flixbuzz etc. This lovely Bombus Pratorum was shot near Uppsala
Early bumblebee in Sweden near UppsalaEarly bumblebee in Sweden near Uppsala
WeidehommelWeidehommel
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Alexander Lees @alexanderlees.bsky.social · 13/07/2026
Our new commentary rdcu.be/ftx6h in @natecoevo.nature.com written with folks from @inaturalist.bsky.social and @cornellbirds.bsky.social shows that use of AI to manipulate existing or create new wildlife images undermines the huge value of vast citizen science databases. 🌍🪰🪶 #Ornithology 🧵 1/10
rdcu.be
Citizen science platforms must mitigate against the threat of generative AI
Nature Ecology & Evolution - Citizen science platforms must mitigate against the threat of generative AI
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Oliver E. Prŷs-Jones 🇺🇦🏴󠁧󠁢󠁷󠁬󠁳󠁿 @opj123.bsky.social · 07/07/2026
New female reproductives (gynes) of Bombus terrestris out and about pre dormancy @cofnod.org.uk
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Paul Williams @paulwilliamsnhm.bsky.social · 15/06/2026
Our evolutionary tree for all world bumblebees paper on the cover of Insects! One conclusion: males with enlarged eyes and short antennae are evolutionarily convergent which may be associated with truly territorial mate-searching behaviour (competing for perches) www.researchgate.net/publication/...
Male of Bombus (Mendacibombus) margreiteri mate-searching in a meadow in Qinghai, China - males compete for perches, for which there is turnover in occupany - https://www.researchgate.net/publication/230668921_The_Bumble_Bees_of_the_Kashmir_Himalaya_Hymenoptera_Apidae_Bobini
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Pieter Haringsma @haringsmapieter.bsky.social · 14/06/2026
In this French document www.biodiversite-auvergne-rhone-alpes.fr/documents/li... It is said that Bombus Brodmannicus isn't seen since the 1970's.
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Oliver E. Prŷs-Jones 🇺🇦🏴󠁧󠁢󠁷󠁬󠁳󠁿 @opj123.bsky.social · 14/06/2026
Bombus hortorum - a new gyne taking nectar from Phlomis russeliana flowers @cofnod.org.uk
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Paul Williams @paulwilliamsnhm.bsky.social · 01/06/2026
Net diversification rate - a new measure mapped for all of the world’s bumblebees and compared with species richness by overlaying them in different colours – excess of DR in green (S America) and excess of SR in blue (Himalaya/Rockies) www.researchgate.net/publication/...
Comparison of species richness (in blue, or blue/purple on some devices) overlayed with net diversification rates (in green: from summing the inverse of the internode-branch lengths on the root paths on the evolutionary tree to each species) mapped for bumblebee faunas on an equal-area grid (cylindrical equal-area projection, orthomorphic at 46° North and South of the equator, Antarctica not shown). Both colour axes are transformed to give near-uniform frequency distributions of scores among colour classes (colour-scale box, upper right: colour values represented for occupied cells on the map are indicated in the scale box with grey spots). Grid cells with high scores on both green and blue axes appear white, whereas cells with low scores on both axes appear black, while areas of intermediate and precisely covarying scores appear in intermediate shades of grey. By contrast, deviations from the overall positive relationship appear as increasingly saturated green or blue, showing an ‘excess’ of one score over the other. North pointer and scale bar representing 1100 km at the equator shown at lower left.
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Cory S. Sheffield 🇨🇦🐝🌺📸🎸🎨 @corysheffield.bsky.social · 27/05/2026
A side by side comparison of the #bumblebees #Bombus ternarius and huntii. Do you see that the latter has what looks like a mite attached to its body? #beesofcanada
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Kaz Ohashi @kazohashilab.bsky.social · 25/05/2026
I don’t think anything is missing in your dataset. I used ‘near-complete’ just in a cautious sense about wording, not as a criticism. I really find it an impressive and valuable synthesis!
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Paul Williams @paulwilliamsnhm.bsky.social · 22/05/2026
New evolutionary tree for all of the world's bumblebee species, from (1) slow-evolving nuclear genes, (2) fast-evolving mitochondrial genes, and (3) results from genomic data, to provide a complete starting point for comparative studies of all bumblebees www.researchgate.net/publication/...
Evolutionary tree for all 289 extant accepted published bumblebee species from 93 million MCMC generations (post convergence) by BEAST 2 for two mitochondrial genes, four nuclear genes, and ge-nomic-supported group priors, with outgroups removed. Bayesian posterior support values for each node are shown with node and descendant branch colours indicating values from blue for high values to red for low values. Selected groups are indicated with larger spots: pale blue LT/LG for long-tongued Lowland Grassland species; pale green ST/MG for short-tongued Montane Grassland species; black spots for parasitic or ‘cuckoo’ species that lack workers, including the subgenus Psithyrus and B. inexspectatus, B. hyperboreus, B. natvigi. Subgenera are named in the outer grey ring. Taxon names not appearing in this figure are interpreted as synonyms (see text).
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Mark Brown @markjfbrown.bsky.social · 20/05/2026
It’s World Bee 🐝 Day! A day to celebrate these amazing insects, and to reflect on how we can support wild populations of 🐝 🐝 for the future. Museum collections are key in showing where bees used to be, setting baselines to understand impacts of stressors and set restoration/conservation targets
A tray of pinned bumblebee specimens from the UMZC
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AlinaHagen 🌊🎨📸 🥾 @alinagrafik.eurosky.social · 20/05/2026
#WorldBeeDay My lone photo of a bee to honor World Bee Day today, August 20th. 🐝 #EastCoastKin #ECK #Macro #Bee #Bloomscrolling
Close up image of a large, fuzzy bee sitting in the center of a bright yellow flower that has tinges of pink/orange on the ends of the petals. The center is a dark maroon with bright orange stamens. Dark purple/blue leaves are in the background as well as a few bright green leaves.
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Mario Vallejo-Marin @nicrodemo.bsky.social · 20/05/2026
Bees spend a lot of energy while buzz-pollinating flowers. We used respirometry, lasers, and bees in 3D chambers to figure just how energetically expensive it is. Thanks @bethbees.bsky.social and @natacharossi.bsky.social for this fun collaboration! royalsocietypublishing.org/rspb/article...
Bees buzzing Solanum
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NullPointer 🍄 @nuiipointer.bsky.social · 12/05/2026
Bumblebum (Bombus terrestris) #bees #bumblebees #insects #invertebrates
The fuzzy butt of a large earth bumblebee doing something underground, possibly nest-related.
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Ian Beavis @ianbeavis.bsky.social · 09/05/2026
Garden Bumblebee queen at Greater Periwinkle, Bryher, Scilly. 25 April
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Samantha Brennan @samanthabrennan.bsky.social · 02/05/2026
Bumblebees are buzzing with Bluetooth trackers at the Arboretum Fifty queen bees are being tracked with Bluetooth technology as part of a research project to determine behavioural differences between commercial and wild bees www.guelphtoday.com/grounded/bum...
guelphtoday.com
Bumblebees are buzzing with Bluetooth trackers at the Arboretum
Fifty queen bees are being tracked with Bluetooth technology as part of a research project to determine behavioural differences between commercial and wild bees
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TRG @q4nwspunk.bsky.social · 20/04/2026
Back to the simple natural order of things…….. not human arrogance based on destruction of our water,air, environment for profit…… for the 1%
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Nigel Raine @nigeleraine.bsky.social · 20/04/2026
Les reines bourdons peuvent survivre et respirer sous l'eau pendant des jours. Découvrez comment Sabrina Rondeau a découvert ce phénomène et ses récentes recherches révélant la physiologie qui permet aux reines de survivre immergées sur @theconversation.com: theconversation.com/comment-les-...
Une reine bourdon accumule des réserves nutritives en prévision de l’hivernage. Lucas Borg-Darveau
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richardcomont.bsky.social @richardcomont.bsky.social · 18/04/2026
Lovely to see Brown-banded Carder back on the allotment, examining the compost heap and nectaring on Red Dead-nettle
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Olivia Bernauer, PhD @oliviabernauer.bsky.social · 16/04/2026
Shocked to report that my first bumble bee of the season was a rusty patched queen! What a delightful surprise
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Cory S. Sheffield 🇨🇦🐝🌺📸🎸🎨 @corysheffield.bsky.social · 10/04/2026
I collected this #Bombus terricola in 2015 on the Îles de la Madeleine, an Archipelago in #Québec - I knew of no previous records. Today I found an 1890 publication of Léon Provancher and it was one of two bee species listed. We now know there are at least 5 other #bumblebee species there too.
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jim mallet @wtf-r-species.bsky.social · 08/04/2026
Good grief! How Trump Took the U.S. to War With Iran www.nytimes.com/2026/04/07/u...
nytimes.com
How Trump Took the U.S. to War With Iran
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Robert Reich @rbreich.bsky.social · 04/04/2026
Trump has called on Congress to pass a record $1.5T defense budget. Roughly half of defense spending goes to private contractors that routinely price-gouge the government. Meanwhile, the Pentagon has failed EIGHT straight audits. The military industrial complex is cheering right now.
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Massimo (mirror) @rainmaker1973-m.bsky.social · 31/03/2026
Bee sleeping on the job. Original post
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Oliver E. Prŷs-Jones 🇺🇦🏴󠁧󠁢󠁷󠁬󠁳󠁿 @opj123.bsky.social · 27/03/2026
Stone bumblebee (Bombus lapidarius) gyne taking nectar from Pentaglottis @cofnod.org.uk
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Oliver E. Prŷs-Jones 🇺🇦🏴󠁧󠁢󠁷󠁬󠁳󠁿 @opj123.bsky.social · 27/03/2026
Small Garden bumblebee (Bombus hortorum) gyne collecting Pulmonaria nectar.
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Paul Williams @paulwilliamsnhm.bsky.social · 20/03/2026
Great fun to meet the University of Ohio's Evolution in Darwin's World group led by Jamie Strange and Ben Philip in the NHM's bumblebee collection on a fab spring day
Where's Jamie?
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Paul Williams @paulwilliamsnhm.bsky.social · 20/03/2026
Great to welcome Nikki Gammans' rare UK bumblebee ID workshop to the NHM for their conservation projects - an opportunity to catch up on exciting progress from this enormously valuable and successful group!
BBCT group at the NHM
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Pieter Haringsma @haringsmapieter.bsky.social · 13/03/2026
One of the most beautiful bumblebees in the French Alps: Bombus Brodmannicus foraging on Cerinthe esp. in the morning and the evening. We planned two trips to see this beauty 😍. Several days later whole are was grazed by sheep, no flowers left sadly.
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