Postdoc researcher at the Hawkesbury Institute for the Environment. Starving caterpillars for science | insects | plant defence | silicon | eCO2
Joined August 2019
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Casey Hall retweeted
Here's the step-by-step checklist for this leafhopper nymph's blastoff:
✅squirt a little honeydew
✅tuck the front legs
✅hold a statue pose all the way into outer space
unused sequence (captured at 4,300fps) from this: youtu.be/8PW-0r4Fj4Y
Casey Hall retweeted
New #siliceousplants paper out in @Plants_MDPI led by @thehungrybug with @ScottJohnsonLab. We found that silicon acts as a direct defence against chewing herbivores by altering the morphology of physical defence structures, not leaf mechanical traits.
mdpi.com/2223-7747/9/5/643
Casey Hall retweeted
Microbes in Helicoverpa armigera oral secretions contribute to increased senescence around plant wounds doi.org/10.1111/een.12886
Casey Hall retweeted
Have you got a few minutes to channel your inner possum and see if you can tell the difference between Australian mistletoe leaves and those of their hosts? Play the game here:
conflict-ecology-games.githu…
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#mimicry
#ecology
#citizenscience
#plantblindness
@S112_OU
@MBulbert
ALT Photo of a brush tail possum very close to the camera peering at the photographer. Its food with hairy digits and little claws is visible in the foreground.
Casey Hall retweeted
Home office c/o Andy Austin 🧑🏼💻🐴🍷Getting it done! You be the judge. @SoBSPA @InvasionEcology @dnatimelord @DrMGuzik @DrEmSherratt #UoAHomeOffice
Casey Hall retweeted
Flies on vacation: evidence for the migration of Australian Syrphidae (Diptera) doi.org/10.1111/een.12856
Casey Hall retweeted
I like how the genome of the Wuhan coronavirus trails off in a scream, like it's been stabbed or pushed off a cliff ncbi.nlm.nih.gov/nuccore/MN9…
Casey Hall retweeted
If you enjoy the flavor of hops this #PhytochemicalFriday, you're tasting isohumulones, products of a hop chemical (humulone) as it degrades during brewing. They provide hops a characteristic bitter flavor. Their parent, humulone, seems to act as an antiviral and antimicrobial.
Casey Hall retweeted
Happy #PhytochemicalFriday from #PAGXXVIII #PAG2020! Today: Aconitine: deadly poison from Aconitum spp. (aka Monkshood / Wolf's-bane) that features in modern mysteries and literature from Ancient Rome (Ovid). The alkaloid binds sodium ion channels & interferes with neuron firing.
Casey Hall retweeted
Congratulations to Tarikul @Tarikul67150456 on passing his CoC and to Rocky @rputrabio on his birthday. Last lab meeting of @ScottJohnsonLab before Christmas. @Fikadu03792669 @aphid_whisperer @thehungrybug @rvandegeer @jmwaterm @XimeCibils
Casey Hall retweeted
🐛
This week I want to show you how beautifully diverse caterpillars have evolved.
Which one is your favorite?
🦋
#caterpillarweek #caterpillar #nature #pollinators #wildlife #cute
Casey Hall retweeted
New paper out shows that not all droughts are equal in the eyes of a grass... @westsyduhie @asps_ozplants
sciencedirect.com/science/ar…
Another super paper from our team. Physiological acclimation of a grass species occurs during sustained b... sciencedirect.com/science/ar… well done @rvandegeer
Casey Hall retweeted
Excellent talk by @thehungrybug at #JointAusBio19 on alkaloid defences as affected by plant silicon. Really cool interplay and interaction between resistance mechanisms
Casey Hall retweeted
@rvandegeer gives a 5 min speed talk at #JointAusBio19 explaining how interactions between silicon and osmotic stress affect herbivores. Herbivores suffer from both; thicker leaves and physical defences?
Casey Hall retweeted
I’ve come across quite a few people who scream when a moth flies at them. So for anyone with a moth phobia (Mottephobia) here is one all tucked up sleeping 💤 on a eucalypt leaf 🍃 in my back yard. Not so scary #eyelashes #moths #lepidoptera #mottephobia
Casey Hall retweeted
First paper out: ""Silicon and Plant Natural Defenses against Insect Pests: Impact on Plant Volatile Organic Compounds and Cascade Effects on Multitrophic Interactions" !!!! Do not hesitate to have a look: mdpi.com/2223-7747/8/11/444 @jtcornelis @felixdetombeur
New paper out in @Plants_MDPI :
"Silicon and Plant Natural Defenses against Insect Pests: Impact on Plant Volatile Organic Compounds and Cascade Effects on Multitrophic Interactions"
Free to download: mdpi.com/2223-7747/8/11/444
@AgroBioTech
Casey Hall retweeted
If you taste pumpkin spice this fall, note that some of the flavors in many such lattes come from zingiberene - a compound that also contributes to the characteristic flavor of ginger rhizomes (Zingiber officinale). Happy #PhytochemicalFriday!
Casey Hall retweeted
Happy #PhytochemicalFriday! Furfural - though not strictly a plant chemical, it is a byproduct of agricultural plant processing (oats, corn, etc.). It's also part of the smell of old books, and its abundance can apparently be used to gauge the age and condition of some books.
