Joseph Williamson
@josephwilliamson.bsky.social
2.2K followers 970 following 54 posts
Researching biological responses to climate change using butterflies. Into inverts / traits / tropical forests / microclimate. Postdoc at University College London (CBER). He/Him. JoeWilliamsonDB on Twitter.
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josephwilliamson.bsky.social
🚨New paper 🚨We argue that abrupt biodiversity losses can be driven by populations sharing similar tolerances to warming 🦋🌎🥵. Out now in @royalsocietypublishing.org. Summary thread below 🧵
royalsocietypublishing.org/doi/epdf/10....
screenshot of the article in Philosophical Transactions of the Royal Society B titled 'Clustered warming tolerances and the nonlinear risks of biodiversity loss on a warming planet'
Reposted by Joseph Williamson
idrisadams.bsky.social
Have had a very exciting and unexpected start to this week, travelling to Salford for an interview with BBC Breakfast talking all things #wasps! Many thanks to @waspwoman.bsky.social for trusting me with this opportunity, and the fantastic #WorldOfWasps at @uclgrantmuseum.bsky.social for the props!
Reposted by Joseph Williamson
ellileadbeater.bsky.social
We are recruiting for a Research Technician to support our lab's experimental evolution work with Drosophila melanogaster at UCL. Do you have recent insect husbandry experience and want to be a key part of an academic research environment? We'd love to hear from you www.ucl.ac.uk/work-at-ucl/...
UCL – University College London
UCL is consistently ranked as one of the top ten universities in the world (QS World University Rankings 2010-2022) and is No.2 in the UK for research power (Research Excellence Framework 2021).
www.ucl.ac.uk
Reposted by Joseph Williamson
thrasherxy.bsky.social
Seeing a lot of racist pinkwashing bullshit about Muslims and homosexuality and it’s a good time to share how I was on the gay marriage beat for a decade and racist gays never believed me when I shared how US Muslims favored equal LGBT rights (52%) over Christian evangelicals (34%)!
josephwilliamson.bsky.social
🚨 Important paper for understanding limits on range expansions under climate change. 🚨 Wall Brown's shift their life history to expand polewards, but are ultimately limited by winter tolerance. Perhaps physiological tolerances just can't evolve at the same pace as other traits... 🦋❄️
matsittonen.bsky.social
New paper in @pnas.org — and this is my favourite one out of my PhD thesis! Field transplants of wall brown butterflies show life history evolution during climate change-driven range expansion, BUT non-evolving winter tolerance still sets the range limit.🧵1/12. doi.org/10.1073/pnas...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
doi.org
Reposted by Joseph Williamson
matsittonen.bsky.social
New paper in @pnas.org — and this is my favourite one out of my PhD thesis! Field transplants of wall brown butterflies show life history evolution during climate change-driven range expansion, BUT non-evolving winter tolerance still sets the range limit.🧵1/12. doi.org/10.1073/pnas...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
doi.org
Reposted by Joseph Williamson
royentsoc.bsky.social
Do you know a young person with an interest in insects? 🦋

The Douglas Boyes Fund aims to provide people aged 14-18 with access to entomology equipment, fostering their passion for insects and inspiring them to engage and share their interest with other young individuals 🔽
Douglas Boyes Fund - Royal Entomological Society
The Douglas Boyes Fund has been established in honour of Douglas Boyes (1996-2021), an esteemed entomologist specialising in Lepidoptera. The Fund aims to provide young people aged 14-18 with access…
buff.ly
Reposted by Joseph Williamson
ellileadbeater.bsky.social
Biology/Geography/Earth Sciences colleagues: can anyone recommend a field centre or similar field course location that works well for students who are wheelchair users? This is a no-fly course so we're trying to find somewhere in the UK or Western Europe
josephwilliamson.bsky.social
Black panther successfully hunting a dikdik last night. 🐈‍⬛ Definitely the best wildlife sighting of my life. 🥹 Incredibly lucky, and quite the cherry on top of a fantastic UCL undergraduate field course to Kenya! 🇰🇪 Recorded by student Aidan McAvoy.
Reposted by Joseph Williamson
funkyant.bsky.social
Closing tomorrow! Last chance to apply for postdoc to explore the role of animals in savanna ecosystem productivity & nutrient cycling! Link to job: tinyurl.com/53dy4584 #savanna #termites #largemammals
Reposted by Joseph Williamson
albertocomoretto.bsky.social
Autonomous locomotion simply with tubes as limbs, and no brain? 🎈🤖

Yes, through physical synchronization! Our article is out today in Science (@science.org)

Article: www.science.org/doi/10.1126/...

Authors: @albertocomoretto.bsky.social, H.A.H. Schomaker, J.T.B. Overvelde

More below 🧪 ⚛️
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josephwilliamson.bsky.social
What do you do when there is heatwave and the meeting room is being refurbed? Take Journal Club to the park of course! Ice lollies provided. 🥵🍦 @uclcber.bsky.social
people sitting in a park discussing a paper and eating ice lollies
Reposted by Joseph Williamson
waspwoman.bsky.social
Today @owenrcorbett.bsky.social was crowned Dr Corbett, Doctor of Wasps!

Congrats Owen! We are all so proud of you!
@uclcber.bsky.social @uclnews.bsky.social @maxreuter.bsky.social

Huge thanks to @jimlabisko.bsky.social @chrisleduck.bsky.social for examining!
Reposted by Joseph Williamson
okbates.bsky.social
🚨🐜!!! Check out our new paper where we investigate the impact of a soil level (SoilTemp) dataset on niche shifts of introduced ant species globally — using soil temperatures often lessens the extent of niche shifts between native and introduced ranges! 🐜 🐜 onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Joseph Williamson
filipemfranca.bsky.social
🔎👀 TropEco Lab is hiring, please share! 🚨
🌍🌴 Position: Senior Research Associate / Research Associate in Field and Molecular Ecology.
🪲🐝🦋 Task: You will use iDNA & eDNA to build bee-plant and dung beetle-mammal networks in the Brazilian Amazonia, Ghana, & Malaysia.
Further details -> bit.ly/4lurR9z
Reposted by Joseph Williamson
hackforth.bsky.social
Last week I defended my thesis "Structure and Function of Insect Communities in Central Congo Peatland Forests" with minor corrections. Thanks to supervisors Jan Axmacher and Simon Lewis for their inspiration and support, and to examiners Tim Newbold (UCL) and Ed Turner (Cambridge). Now, to publish!
josephwilliamson.bsky.social
Great to see our new review on the causes and consequences of tropical insect declines out in Nature Reviews Biodiversity. 🪰🪲🐜🐛🐝🦋 It was a pleasure working with an international team of amazing tropical entomologists! 🧑‍🔬
www.nature.com/articles/s44...
Ecological effects of declining insect diversity and abundance.
In tropical forests, declining insect populations will have substantial effects
on plant community dynamics, resulting in reduced biodiversity, alterations to
functional community composition of plants and ultimately reduced nutrient
cycling and carbon sequestration. Reductions in the abundance of insects will
also have knock-on effects on insectivorous animals such as bats, birds and
lizards. In forest-adjacent tropical communities, unequal patterns of decline
across the trophic pyramid will result in a predator release effect on pest species,
leading to reduced food security and increased outbreaks of insect-vectored
disease in both humans and livestock. Increasing temperatures and changing
rainfall patterns may affect pollinators, further exacerbating reductions in yields
of locally and globally important crops. ‘Acquisitive’ leaf traits are those that
maximize growth, such as high specific leaf area and leaf nitrogen content.
Reposted by Joseph Williamson
ymalhi.bsky.social
Super useful video library to liven up your presentations …
ipbes.net
IPBES @ipbes.net · Apr 1
Looking for high quality free videos?🎥 Introducing: Open Planet! 🧪🌍

A rich free-to-use video library to help storytellers create impactful content for our planet.

Find world-class footage to tell your stories about #biodiversity & nature ⤵️🌿

openplanet.org #ForNature
Discover world-class footage of our changing planet.
Open Planet is a global library of high-quality climate and nature footage. It is free to use for educational, environmental and impact storytelling.
openplanet.org
Reposted by Joseph Williamson
breijenga.bsky.social
Out now in @pnas.org , we study the recovery dynamics of biodiversity across the Cretaceous–Paleogene mass extinction. We quantify how species-area relationships – how diversity scales with geographic area – have changed for dinosaurs, mammals and others: doi.org/10.1073/pnas...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
doi.org
Reposted by Joseph Williamson
aninehartmann.bsky.social
For the first time, the Norwegian government has calculated the value to society of the health benefits of increased walking and cycling.

🚲 ~€2.8 for each additional km of cycling
🚶‍♀️ ~€4.2 for each additional km of walking
aninehartmann.bsky.social
Samfunnet tjener mye på at folk går og sykler!

Nye tall fra Helsedirektoratet viser at vi sparer:

🚲 33 kr for hver km folk sykler
🚶‍♀️ 49 kr for hver km folk går

Det er sammenlignet med at folk ikke er i fysisk aktivitet, f.eks. om de kjører bil.
Dokumentasjonsrapport: Helseeffekter av fysisk aktivitet per km gange og sykling
Helsedirektoratet.no retter seg mot deg som arbeider innen helse- og omsorgstjenesten.
www.helsedirektoratet.no
Reposted by Joseph Williamson
mcmahok.bsky.social
We're hiring a fieldworker to help with some of our projects in Wytham Woods this spring. Wonderful place to work (and live), especially in the spring. Get in touch if you'd like to know more.
We are seeking to appoint a fulltime field assistant to work on the Wytham Tit Project for 4-8 weeks in spring 2025. Duties will include (i) collecting standardised data from nest-box breeding populations of tits, (ii) setting up equipment to monitor foraging behaviour of great tits (e.g. cameras, proximity loggers), (iii) fitting proximity tags and accelerometers to adult great tits (iv) inputting data collected in the field. The start date and duration of this position is flexible, depending on availability of the successful candidate. The post could last up to 8 weeks, starting in mid-April, or c. 4 weeks, starting in early May. All fieldwork will take place in Wytham Woods, near Oxford. The work is variable in intensity and will at times require long days in the field, and working some weekend days, but this will be balanced out by a quieter period at the start and end of the season. Successful candidates must have (or be qualified to obtain) a BTO permit to ring adult great tits, be able to demonstrate skill and enthusiasm for biological research as well as experience of fieldwork under arduous conditions, and both lone work and working as part of a team. Due to the short-term nature of these posts, successful applicants must already have the right to work in the UK.
Salary & Accommodation: Field assistants will be paid at grade 5.2 (£17.02/hour) and responsible for finding their own accommodation. It will be possible to hire accommodated at the Wytham Chalet, a research station within Wytham Woods. Alternatively, field assistants can find private accommodation locally and use their own transport to commute to the woods (approx. 30 min by car or bike, depending on location).
Please submit an application, consisting of (1) a covering letter explaining relevant experience and motivation, (2) a CV (max 2 pages), and the names of two people who can be contacted as referees, by Tuesday 11th March 2025 to eleanor.cole@biology.ox.ac.uk. Inquiries to same email.
josephwilliamson.bsky.social
🚨 New paper 🚨 Primate sensory evolution shows shifts in visual and olfactory systems 🦧👁️👃. Nice to see this is out, really cool combination of genomic, molecular and anatomical data! 🧬🧪🧠 Thanks to Hai Chi, Gang Li and co for having me on board. www.nature.com/articles/s41...
Phylogenetic tree of primates (left), functional OR clustering results (middle) and OR quantities of living and ancestral primate species (right). The dotted line represents the quantity (percentage) of functional ORs relative to the primate ancestor. P, Primates; Ha, Haplorrhini; A, Anthropoidea; Ca, Catarrhini; K, Cercopithecidae; H, Hominoidea; Ho, Hominidae; Hy, Hylobatidae; Ce, Cercopithecinae; Co, Colobinae; L, Platyrrhine; Ta, Tarsiidae; S, Strepsirrhini; Le, Lemuroidea; Lo, Lorisoidea. In the heatmap, each row corresponds to a species (or ancestor), while each column represents one of the 3,077 functional clusters, blue bars denote the presence of different OR functional clusters in the species, while grey bars signify absence. b, Ternary plot of the proportion of the three functional groups of OR tuning for ancestral and extant primates. The blue and red triangles refer to the 50 extant species of Haplorrhini and Strepsirrhini in the evolutionary tree of a and the blue and red dots refer to the ancestral nodes of primates, denoted by the 15 circularly labelled abbreviated letters in a. c, Total numbers of differently tuned ORs in early ancestors of anthropoids and strepsirrhines revealing notable differences between ancestors of strepsirrhines and anthropoids.