James Guest
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James Guest
@james-guest.bsky.social
Reader in Coral Reef Ecology at Newcastle University. PI of
The Coralassist Lab. Favorite activity: swimming over a healthy coral reef!
Wordle 1,510 1/6

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August 7, 2025 at 9:56 PM
I've faithfully stuck to that word as my opener for 3 years! Now I just need to find another opening word 🧐
August 7, 2025 at 8:56 PM
Reposted by James Guest
Paper was led by Adriana Humanes, Liam Lachs & James Guest

Part of the fruitful Coralassist Lab - PICRC collaboration, with support from the Horniman Museum, Uni. Of Exeter, Derby Uni. & Uni. Victoria

Funded by ERC, with support from UKRI / NERC

(9/9)
October 14, 2024 at 10:29 AM
Reposted by James Guest
Our study shows selective breeding is feasible, yet potential heat tolerance gains are modest compared to expected future warming.

R&D is needed to optimise breeding interventions and maximise positive impacts.

Ultimately, reefs still depend on rapid reductions in greenhouse gas emissions.

(8/9)
October 14, 2024 at 10:28 AM
Reposted by James Guest
Offspring bred for short-stress tolerance did not show evidence of enhanced tolerance to the long-term stress that more closely emulates marine heatwaves.

To maximise coral fitness in the face of climate change, care will be needed when selecting which traits to breed for.

(7/9)
October 14, 2024 at 10:28 AM
Reposted by James Guest
Nature vs. Nurture:

The heritability of heat tolerance traits was ~0.2-0.3.

This means these traits have a substantial genetic basis but are also heavily influenced by other non-genetic factors.

(6/9)
October 14, 2024 at 10:27 AM
Reposted by James Guest
Offspring whose parents had high (rather than low) heat tolerance showed an enhanced ability to withstand the type of heat stress for which they were bred.

They can withstand the heat stress for a longer duration before the onset of bleaching and mortality.

(5/9)
October 14, 2024 at 10:26 AM