Kaz Ohashi
@kazohashilab.bsky.social
820 followers 600 following 110 posts
Pollinator foraging behavior and its consequences for floral ecology and evolution | Assistant Professor @UofTsukuba | AE @jpollecol.bsky.social | ohashilab.com
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kazohashilab.bsky.social
Enjoy my latest talk at #IBC2024 held in Madrid, Spain!🌸🌹💐🐝
bit.ly/IBC2024_KO

We discuss how #AdaptiveGeneralization for a certain pollinator community has led to phenotypic convergence or syndromes in flowers.

Based on Ohashi et al. (2021): bit.ly/TradeoffMiti...
The title slide of my talk, 'Trade-off mitigation: a key concept to understand the evolution and function of convergent floral phenotypes'
Reposted by Kaz Ohashi
kdarragh.bsky.social
I'm looking for PhD students to join the lab starting August 2026. We study the evolution of insect chemical signals so if you're interested in evolutionary biology, chemical ecology, molecular biology, behavior, or genetics, this could be a good fit for you! More info here: tinyurl.com/mrxchwfm
Green butterfly sat on a flower.
Reposted by Kaz Ohashi
newphyt.bsky.social
#Viewpoint: Exploring the importance of aromatic #plants' extrafloral volatiles for #pollinator attraction

Kantsa et al. 👇

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...

#LatestIssue #PlantScience
Known and proposed ecological functions of aboveground aromatic emissions (i.e. constitutive volatile emissions from vegetative plant tissues) in mediating biotic interactions with arthropods, other plants, and microorganisms.
Reposted by Kaz Ohashi
jpollecol.bsky.social
"The fate of pollen in two morphologically contrasting buzz-pollinated Solanum flowers" by Vasquez-Castro et al. freshly published! doi.org/10.26786/192...
Reposted by Kaz Ohashi
Reposted by Kaz Ohashi
martingiurfa.bsky.social
See last article on "The cognitive side of communication in social insects", just published in @TrendsCognSci . Free access under this link!
authors.elsevier.com/sd/article/S...
Reposted by Kaz Ohashi
macstronach.bsky.social
Spent hours being spellbound by Convolvulus Hawk Moths last night as they nectared on Nicotiana plants in my highland garden!. Up to 3 feeding at a time, their entire abdomens glowing red hot in the thermal from flight muscle use!! #teammoth @migrantmothuk.bsky.social @savebutterflies.bsky.social
Reposted by Kaz Ohashi
kathleenmkay.bsky.social
Is the Most Effective Pollinator Principle a zombie idea? How do plants adapted to one pollinator shift to another without traversing an adaptive valley? How should we measure fitness in pollinator selection studies? We explore these questions and more in a new review doi.org/10.1093/aob/...
Beyond the Grant–Stebbins model: floral adaptive landscapes and plant speciation
AbstractBackground. Floral diversity, a striking feature of angiosperm evolution, provides the impetus and rationale for linking pollinator-driven selectio
doi.org
kazohashilab.bsky.social
Even more fascinating after reading ‘Birds and flowers’ book by @jeffollerton.bsky.social
#BirdPollination #Generalists #Ecology
kazohashilab.bsky.social
🐦🐝 In Banksia menziesii, excluding birds cut fruit set, seed viability, and genetic diversity, while inbreeding rose. Honeybees moved plenty of pollen but increased selfing. Birds proved the most effective pollinators, with genetic gains that may drive bird-pollinated flowers. bit.ly/4fuAz58
Exclusion of bird pollinators impacts mating system and reduces offspring fitness in a pollination-generalist tree
AbstractBackground and Aims. Compared to pollinating insects and non-flying mammals (NFM), nectarivorous birds may display behaviours leading to greater po
bit.ly
kazohashilab.bsky.social
🐦🐝 In Banksia menziesii, excluding birds cut fruit set, seed viability, and genetic diversity, while inbreeding rose. Honeybees moved plenty of pollen but increased selfing. Birds proved the most effective pollinators, with genetic gains that may drive bird-pollinated flowers. bit.ly/4fuAz58
Exclusion of bird pollinators impacts mating system and reduces offspring fitness in a pollination-generalist tree
AbstractBackground and Aims. Compared to pollinating insects and non-flying mammals (NFM), nectarivorous birds may display behaviours leading to greater po
bit.ly
Reposted by Kaz Ohashi
asn-amnat.bsky.social
Are specializations evolutionary dead ends? Morrison et al. reveal that in bird carotenoid evolution, continuity and stability are two sides of the same coin.

Read now ahead of print!
www.journals.uchicago.edu/doi/10.1086/...
This is a photo of a brown and red bird to the left of a flowering cactus, it is set against a blue sky.
Reposted by Kaz Ohashi
newphyt.bsky.social
✨ Paper spotlight ✨

(🧵 1/3) Evolution of petal patterning: blooming floral diversity at the microscale
nph.onlinelibrary.wiley.com/doi/10.1111/...
Fig.3 Micropatterns on the petal surface are created by variation in epidermal cell pigment, shape and cuticle textures.
Reposted by Kaz Ohashi
oceanfilly.bsky.social
Are you a PI in a biology field looking for postdocs? Here is a Starter Pack of early career biologists currently seeking postdoctoral positions! (Also if you are searching for a postdoc, let me know if you want to be added!) go.bsky.app/8zZNEGV
kazohashilab.bsky.social
Dieunomia heteropoda? I got curious and asked the BeeMachine app, then looked for similar Dieunomia images. We don’t have this genus in Japan, but what an amazing look for a halictid! (if I’m correct)
Reposted by Kaz Ohashi
nikogeldner.bsky.social
We have a unique opportunity for a junior researcher, PhD student or postdoc, to use a revolutionary technique for mineral nutrient imaging and tracing in plants. Please re-post! Interested candidates should apply through the portal at the link below:

career5.successfactors.eu/career?compa...
Career Opportunities: Postdoc or PhD student position in Plant Physiology (22260)
career5.successfactors.eu
kazohashilab.bsky.social
I believe you’re talking about tsukibito.
Reposted by Kaz Ohashi
dickmerrill.bsky.social
Interested in a PhD connecting sensory ecology and evolutionary genetics? Applications are now open for a project on the Speciation Genomics of Eye Size Variation in Heliconius Butterflies in our lab at LMU Munich: www.evol.bio.lmu.de/research/mer... Please repost!
kazohashilab.bsky.social
Glad to see the clear-wing hawkmoth (Cephonodes hylas) is back in our garden! The way they quickly and accurately find their food plants (Gardenia jasminoides) and lay eggs is simply mind-blowing. #Hawkmoths
A clear-wing hawkmoth (Cephonodes hylas) oviposits on a young shoot of Gardenia jasminoides, its larval host plant. The moth’s body is sharply lit against the glossy green foliage, emphasizing its fuzzy yellow thorax and striped abdomen. In mid-air, a clear-wing hawkmoth (Cephonodes hylas) hovers with wings outstretched.
kazohashilab.bsky.social
A marmalade hoverfly on a multiflora-rose flower. I love photography as it constantly reminds me of the breathtaking beauty of the creatures that inhabit our world. #Hoverflies #NativeFliwers
A close-up photograph of a Rosa multiflora blossom being visited by a hoverfly, Episyrphus balteatus. The fly’s translucent wings and vivid orange-and-black striped abdomen contrast beautifully with the delicate white petals and bright yellow stamens of the flower.
Reposted by Kaz Ohashi
itaiyanai.bsky.social
In today's episode of the Night Science Podcast we talk with Martin Schwartz from Yale about the importance of stupidity in science: while learning science makes you feel smart, true scientific discovery often involves feeling stupid, because it means venturing into the unknown.