To recreate the ancient marine environment, researchers examined fossils from South China, a shallow sea during the Permian-Triassic transition. The team was able to analyze prey-predator relationships and determine the functions ancient species performed by categorizing species into guilds, or groups of species that exploit resources in similar ways. These simulated food webs represented the ecosystem before, during, and after the extinction event in a plausible way.

The following submission statement was provided by /u/NadiyaJeba:

To recreate the ancient marine environment, researchers examined fossils from South China, a shallow sea during the Permian-Triassic transition. The team was able to analyze prey-predator relationships and determine the functions ancient species performed by categorizing species into guilds, or groups of species that exploit resources in similar ways. These simulated food webs represented the ecosystem before, during, and after the extinction event in a plausible way.

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/11c9ctr/new_study_reveals_biodiversity_loss_drove/ja2axw2/

Crazy, because that’s what we’re doing right now as we speak.

Height of hubris we think this stuff debatable

Right I'm just sitting back this society cannot last long. Basically a fat man eating everything

We’re doomed to repeat the mistakes of the past. Not enough historians? No. Too many chucklefucks who don’t care or snakes who benefit from suppressing the truth.

A natural reaction when dictators want to fire missiles into the sea...

The ecosystem model in which loss of biodiversity reaches a tipping point upon which the food web collapses is basically as old as practical numerical computation being available for general research -- the 1970s. The question of how precisely you can characterize the tipping point is a key one in network theory/ecology/biology. So as we have good data on certain ecosystems, such as around agriculture and in certain well-studied areas of rainforest, it is of interest to know whether the next species to go locally extinct will collapse the local ecosystem, as does happen (this or similar network phenomena may be a major cause of the colony collapse epidemic in American honeybees currently, which is chicken-or-egg devastating to biodiversity in areas in which it occurs, and is of course of huge financial concern to agriculture).

So the relation of these kinds of papers to Climate Change and the Anthropocene extinction (i.e. humans destroying habitats and causing things to go extinct super quick) has been warned about for decades. That's the pop sci magazine reporting.

This is awesome new research because they applied this technique -- a rather tricky one in general -- to a very tricky fossil record (for which they also expanded the existing model), and got it seems rather conclusive results. So it probably speaks to the strength of the theory in general, but I would always be cautious about that, since being a powerful tool -- thus being conducive to wide applicability, thus being widely applied, thus being a big part of many explanations -- is not the same thing as conclusively making up proportionally that percentage of the actual explanation... if that sentence construction makes sense. Especially in networks, and especially in systems with limited data.

If I’m remembering the article suggests there was a span of approximately 60,000 years between what they characterized as the onset of biodiversity loss and ecosystem collapse.

So geologically a blink of an eye but still 10x longer than the time since the Neolithic revolution and the adoption of agriculture.

The loss of biodiversity is reversible. We shouldn’t normalize defeatism.