Javier González

A graph of atmospheric carbon dioxide concentrations at the Mauna Loa observatory, Hawaii, from 1958 to 4th February 2025. It shows carbon dioxide levels rising at an accelerating rate over the decades. This is known to be due to emissions of carbon dioxide from human activity, mainly fossil fuel burning but also deforestation. The first CO2 concentration value in March 1958 was 315 parts per million (ppm). The latest daily value is 426 ppm. The graph also shows a seasonal cycle of a few ppm within each year, which is known to be linked to the growing season in the northern hemisphere causing a temporary uptake of carbon in spring and summer and release in autumn. The graph is produced routinely by the Scripps Institution of Oceanography, UC San Diego.

Although NOAA's page on atmospheric CO2 levels has vanished, you can still get this vital information from Ralph Keeling's team at the Scripps Institution of Oceanography, UC San Diego keelingcurve.ucsd.edu

Please follow bsky.app/profile/keel... for updates and share

Don't let science be hidden

Are you interested in large scale biodiversity patterns, conservation, ecology, ecosystem functions... So you should consider connecting with researchers within the Global Ecology starter pack (DM @global-ecology.bsky.social if you want to be added).

<1 month to apply! Want to learn how to make the most of ecological data using supercomputers? Check out the projects. Our is especially cool ;) "Decoding biological colour: leveraging AI to analyse big data on animal images in a changing world" www.exageo.org/phd-student-... @lec-reefs.bsky.social

Coral Reef in the Ras Mohanned Marine Park, Egypt. Credit: Alex Mustard / Ocean Image Bank

NEW JOB: How does pelagic-reef connectivity vary across atolls and oceans?

2 year post-doc position based at research-intensive @lancasteruni.bsky.social, and part of the fantastic @lec-reefs.bsky.social team

Apply: hr-jobs.lancs.ac.uk/Vacancy.aspx...

#AcademicSky 🦑 🧪 🌊 🌍

NASA data shows that the rate of global warming over the past 15 years was about 9 times as high as between 1880 and 1970!

There is more and more evidence that the rate of global warming has doubled since 2010!

Visualization by the great Makiko Sato:

‘Catastrophic’: Great Barrier Reef hit by its most widespread coral bleaching, study finds More than 40% of individual corals monitored around One Tree Island reef bleached by heat stress and damaged by flesh-eating disease

‘Catastrophic’: Great Barrier Reef hit by its most widespread coral bleaching, study finds #Climate

Great Barrier Reef fish evidence suggests shifts in major global biodiversity patterns Life on the Great Barrier Reef is undergoing big changes in the face of climate change and other human-caused pressures, a new study reveals.

Fish communities on the Great Barrier Reef have significantly changed since the 1990s, with shifts in species diversity linked to coral composition changes, highlighting the impact of climate change and human pressures. doi.org/g8znds

This is figure 1, which shows reef fish species richness (α diversity) across time and latitude.

Using long term data from the Great Barrier Reef, a study in Nature Communications finds that shifts in coral composition correlate more strongly with reef fish diversity changes than fluctuations in coral cover. https://go.nature.com/4g7mKIm 🧪

Emergent patterns of reef fish diversity correlate with coral assemblage shifts along the Great Barrier Reef - Nature Communications Coral reefs have been severely affected by anthropogenic stress. Using long term data from the Great Barrier Reef, this study found temporal changes in the latitudinal diversity gradient, and stronger...

Emergent patterns of reef fish diversity correlate with coral assemblage shifts along the #GreatBarrierReef doi.org/10.1038/s414...

Emergent patterns of reef fish diversity correlate with coral assemblage shifts along the Great Barrier Reef - Nature Communications Coral reefs have been severely affected by anthropogenic stress. Using long term data from the Great Barrier Reef, this study found temporal changes in the latitudinal diversity gradient, and stronger...

Great Barrier Reef fish reveal that large-scale macroecological patterns have changed significantly 🐟🐠

We found that changes in latitudinal diversity gradient & rising species turnover were strongly correlated with shifts in coral composition

Out now in Nature Comms www.nature.com/articles/s41...

Fish diversity has changed dramatically on the Great Barrier Reef The team found that the diversity of fish communities across the Great Barrier Reef (GBR) have changed dramatically since the 1990s.

Fish diversity has changed dramatically on the Great Barrier Reef: The team found that the diversity of fish communities across the Great Barrier Reef (GBR) have changed dramatically since the 1990s.

#GreatBarrierReef #FishDiversity #ClimateChangeImpact #CoralBleaching #EarthDotCom #Earth

Illuminating the multidimensional contributions of small-scale fisheries - Nature A study aimed at revealing the role of small-scale fisheries in sustainable development shows they provide at least 40% of the global fishing catch and affect the livelihoods of 1 in 12 people in the ...

Hot off the press! This week's research 🦑🧪🌍🌊

🎣 Global small-scale fisheries www.nature.com/articles/s41...

🪸 Diversity shifts on Great Barrier Reef www.nature.com/articles/s41...

💎 Artisanal mining impacts doi.org/10.1016/j.ex...

🏝️ Reef indicators for island restoration doi.org/10.1016/j.ec...

Fish diversity has changed dramatically on the Great Barrier Reef The team found that the diversity of fish communities across the Great Barrier Reef (GBR) have changed dramatically since the 1990s.

Fish diversity has changed dramatically on the Great Barrier Reef @earthdotcom.bsky.social

www.earth.com/news/fish-di...

@oceanographicmag.bsky.social

Can I be added, please?

3️⃣ La vida als anys 90: la biodiversitat de la Gran Barrera de Corall ha "canviat significativament":
Un nou estudi revela que les comunitats de peixos de la Gran Barrera de Corall avui són substancialment diferents de les dels anys 90. 🌊🐠

Life in the '90s: Barrier Reef biodiversity has 'shifted significantly' - Oceanographic Fish communities living on the Great Barrier Reef today are "substantially different" to those that lived there in the 1990s, new study finds

Another coveage by oceanographic magazine:

"Life in the '90s: Barrier Reef biodiversity has 'shifted significantly'"

oceanographicmagazine.com/news/life-in...

A short story of our paper in @naturecomms.bsky.social

AIMS: Great Barrier Reef fish evidence suggests shifts in major global biodiversity patterns

www.aims.gov.au/information-...

Great Barrier Reef fish evidence suggests shifts in major global biodiversity patterns - Lancaster University Life on the Great Barrier Reef is undergoing big changes in the face of climate change and other human-caused pressures, a new study, led by researchers at Lancaster University, reveals.

CORAL REEF RESEARCH NEWS: Great Barrier Reef fish evidence suggests shifts in major global biodiversity patterns

www.lancaster.ac.uk/news/great-b...

#coralreefs #coralreefdiversity #greatbarrierreef #coralscience #research #coralresearch #reeffish #coralreefecology #marinescience #marinebiology

Great Barrier Reef fish evidence suggests shifts in major global biodiversity patterns - Lancaster University Life on the Great Barrier Reef is undergoing big changes in the face of climate change and other human-caused pressures, a new study, led by researchers at Lancaster University, reveals.

Find the press release from Lancaster University of our paper.

Great Barrier Reef fish evidence suggests shifts in major global biodiversity patterns:

www.lancaster.ac.uk/news/great-b...

Emergent patterns of reef fish diversity correlate with coral assemblage shifts along the Great Barrier Reef - Nature Communications Coral reefs have been severely affected by anthropogenic stress. Using long term data from the Great Barrier Reef, this study found temporal changes in the latitudinal diversity gradient, and stronger...

Congrats @reefjav.bsky.social on a beast of a paper showing that coral composition, not cover, drives reef fish assemblage change over space & time. 28yrs of #AIMS data over entire #GBR www.nature.com/articles/s41... Not bad for 1st paper of PhD 🤯 @lec-reefs.bsky.social @nickajgraham.bsky.social

Emergent patterns of reef fish diversity correlate with coral assemblage shifts along the Great Barrier Reef - Nature Communications Coral reefs have been severely affected by anthropogenic stress. Using long term data from the Great Barrier Reef, this study found temporal changes in the latitudinal diversity gradient, and stronger...

Big paper drop by @reefjav.bsky.social !
Reef fish communities are undergoing substantial change on the Great Barrier Reef, with latitude and through time. Changing coral composition, not simply coral cover, a major driver. @lec-reefs.bsky.social

www.nature.com/articles/s41...

The paper represents the first chapter of my PhD.

Thanks to all my coauthors @nickajgraham.bsky.social., @salkeith.bsky.social, @remotereefs.bsky.social and the Australian Institute of Marine Science (AIMS) for their invaluable contributions and support throughout this enjoyable collaboration.

We found that these emergent patterns of reef fish diversity are more closely associated with shifts in coral community composition than fluctuations in coral cover 🐠 🪸

Altered diversity patterns are characterised by heterogeneous changes in reef fish trophic groups across the latitudinal gradient with reductions
in omnivores, planktivores, and herbivores in the northern GBR, and increases in the southern regions.

Reef fish turnover continuously increased over time at all latitudes of the Great Barrier Reef and did not show evidence of a return 🐟

We found that the most documented pattern of life on Earth - the Latitudinal Diversity Gradient - has changed in shape over the last three decades, raising questions about whether these patterns are decoupling from their original underlying drivers 🐠

Emergent patterns of reef fish diversity correlate with coral assemblage shifts along the Great Barrier Reef - Nature Communications Coral reefs have been severely affected by anthropogenic stress. Using long term data from the Great Barrier Reef, this study found temporal changes in the latitudinal diversity gradient, and stronger...

Great Barrier Reef fish reveal that large-scale macroecological patterns have changed significantly 🐟🐠

We found that changes in latitudinal diversity gradient & rising species turnover were strongly correlated with shifts in coral composition

Out now in Nature Comms www.nature.com/articles/s41...

1

2

2024 was the warmest year for all continents, except Antarctica and Australasia. In Europe, 2024 exceeded the 1991–2020 average by 1.47°C and the previous record from 2020 by 0.28°C.
Read the full Global Climate Highlights 2024 here: https://bit.ly/40kQpcz

#C3S #GCH2024

Diagram showing links between seabirds and various coral-reef monitoring outcomes.

Check out our new paper!

We compare indicators for monitoring the impacts of island restoration on coral reefs. Massive thanks to our huge list of collaborators, which enabled us to look at seabirds, nutrients, microbes, algae, corals, and fish! 🐦🦠🌱🪸🐠

www.sciencedirect.com/science/arti...