Rain is Life, and Holobionts Create it

 

Buying vegetables at a stall in Florence on a rainy day. My wife, Grazia, is the one with the pink umbrella. 

By Ugo Bardi

After three months of drought during the summer, Florence is now drenched in rain. It has been raining for two months and people are complaining that it is too much! But it is how things have to be: I recently discovered that rain is an "autocatalytic" phenomenon. A more humid atmosphere creates more rain, and rain creates a more humid atmosphere. And that creates long periods of static weather -- too little rain and then too much. 

I learned that from the work of Anastassia Makarieva, Mara Baudena, and several others who have studied the relationship between atmospheric humidity and rain. Look at this figure, from a paper by Makarieva et al., to be published.

The y-axis is the amount of rain, in mm/hour. The x-axis is the amount of water vapor in the "air column." Note the strongly non-linear relationship. It is a typical power law: a small increase in atmospheric humidity causes a large change in rainfall. The three red points indicate the boundary of the "abiotic regime" (no rain) and the power law region.  

As I said, it is an autocatalytic phenomenon, Rain tends to generate more rain, at least as long as it wets the land and it generates moisture transpiration, which increases the water vapor content in the atmosphere. This has very practical consequences in many senses. One is the role of forests in weather and climate. Forests generate strong evapotranspiration, that is they pump water from the soil to the atmosphere. And, also, forests tend to keep water in the soil, slowing down the runoff.

So, not only do forests generate rain, but they also tend to maintain the rain pattern. Without forests, and with the land covered with buildings, you have the typical desert climate: dry most of the time, then with short periods of heavy rain. Disasters ensue, now a common pattern in areas such as California or Italy, where deforestation has taken place. 

So, we need our fellow holobionts, the trees. Onward, fellow holobionts!

(below, some rain-loving holobionts pictured together)

The tragedy of science: we cannot fault the tiger for being the tiger

Vinay Prasad is a young researcher in oncology who recently published the post reproduced below on his blog. It is about how oncology has become a field whose main purpose is mainly to enrich companies and practitioners. The tragedy of these reflections is that they apply just as well to many other fields of science. And it is sad to think that science started as a disinterested search for truth, and then it was turned into an ideological shield for criminal activities. Correctly, Vinay Prasad says that we cannot fault corporations for aiming at profits (we cannot fault the tiger for being the tiger). But we can fault the whole health system built with the purpose of making money instead of helping patients. Vinay Prasad's most recent book (2020) is titled "Malignant". I am reading it. It was already rather dark, but not as pessimistic as his latest post. 

Here are some excerpts from Vinay Prasad's text, you can look at the complete text on his blog:

The Tragedy of Oncology

Vinay Prasad

Excerpts from https://vinayprasadmdmph.substack.com/p/the-tragedy-of-oncology

I started my journey into cancer medicine more than 10 years ago, and it has been joyous and tragic, fulfilling and frustrating, all at once and often on the same day. Recently, I returned from our latest conference, and I had a chance to think about that experience a few days later in the mountains of the Sierra Nevadas. My conclusion is grim.

....

The tragedy in oncology is that we have dismantled the system that is meant to tell real innovation from pseudo-innovation. Almost no one understands the problem, even few care about fixing it, and instead most hope to fatten themselves of the riches, while the opportunity exists. Meanwhile, we have entirely lost sight of the goal— the purpose of our task. We have forgotten that this is about helping people sick and dying of cancer live long and live better. That goal is lost.

10 years ago, I believed that, as a younger generation swept through, reform would be inevitable. 10 years later, I see how naive I was. For every young person who understands the problem, there are 9 more salivating at the idea of becoming the next key opinion leader, eagerly going to advisory boards or pharma-sponsored dinners. Every young person who speaks out publicly is advised by colleagues or their boss to stop talking. Some are even told not to (or fearful of) retweeting critical content like mine or Aaron Goodman’s.

.......

Academic leaders. This category contains some massive failures. We have ‘leaders': who are pocketing 10s of thousands from Pharma and defending their (failed) products. What am I to think when the company behind Melflufen hires a leading academic to defend a garbage subgroup analysis at the ODAC? What am I to think when university after university enters into financial arrangements with companies? Pushing back on corporatism is impossible, when you are on the payroll.

Journals and professional societies. Many journals block critical commentary. Many organizations sell out their professional conferences to Pharma. These institutions are now so dependent of Pharma largess that they are powerless to say anything. Only a few voices inside these organizations keep them from toppling into complete advertisements.

Junior faculty. The vast majority are busy running uncontrolled trials that will not help anyone (most uncontrolled trials can’t even answer a useful question). Many have joined ad-boards, etc. Some are studying important topics but have nothing novel to add. An abstract on health disparities that shows… health disparities. Except the solution remains unclear, and the authors think all that is needed are more expensive, mediocre drugs. Cookie cutter projects is another weak spot. If you don’t have a novel idea, it’s ok to think for a while— rather than follow the path of least resistance.

Oncology press. A cottage industry of rag publications cover oncology. They are almost entirely funded by pharma or it’s ads, and they have no critical coverage. Even oncology podcasts are upwardly biased. This is not journalism, but advertisement.

The Industry. The group that I have the least quarrel with is pharma itself. We cannot fault the tiger for being the tiger. Instead, it is the aforementioned entities who have let their guard down. The tiger has a moral obligation to make profit. We were the ones who did not incentivize the right things.

......

How will it end?

Internal reform is not possible. Too many people benefit from the status quo. Reform will come from government regulation— and must come from the USA— that tilts incentives to what matters. I will continue to write, podcast and publish on the flaws of cancer medicine, but going forward, I will spend more time strategizing on political solutions to this problem.

Meanwhile, I won’t forget the goal of oncology: to help people with cancer live as long and as well as possible, using as few drugs as possible, and, pushing for the best evidence to guide those choices. Perhaps we should all have to take that oath.

Mushrooms! Three Minutes of Pure Holobiontic Delight

 

The Return of the Ents: The Tribe of the Trees

Image by VargasNi

The idea of trees moving and fighting humans is old, it goes back to Shakespeare's Macbeth and the prophecy of the witches

Macbeth shall never vanquish'd be until

Great Birnam Wood to high Dunsinane Hill
Shall come against him.

You find the same idea again in Tolkien's "Trilogy of the Ring," with the creatures called "Ents," which attack the city of the orcs at the battle of Isengard. Both Shakespeare and Tolkien express a similar idea, that at some point too much is too much and nature rebels against human evil with all its force. To the point of seeing trees taking their roots out of the ground, and marching against human cities. 

In modern times, the idea that trees and humans are in conflict is gaining attention. The concept of "biotic regulation of the environment" proposed by Makarieva, Gorshkov, and others, is gaining ground in the world. It basically says that if we destroy the world's forests, we destroy ourselves. Not an easy position to take in a world where forests are considered "natural resources" and where the standard economic theories say that a tree has no monetary value unless it is cut down and sold as wood.

Would "humanizing" trees in fiction help people to have a more gentle attitude toward trees? Maybe, but it is not so clear. Personally, I always found depressing Tolkien's walking trees. Their representation in the 2002 movie "The Two Towers" didn't change my opinion of them. They are clumsy, ugly, and not really believable, not even in a fantasy movie. 

Recently, another take on presenting the world from the viewpoint of trees was tried by Stefano Mancuso, well-known botanist at the University of Florence, and an expert in plant neurobiology. If there is a human being on this planet who can know something about how plants think, he is the one! So, he published a novel titled "the tribe of the trees" (la tribù degli alberi). (so far available only in Italian).

I have mixed feelings about this novel. For one thing, it is a well-written story, nice to read, captivating, and with delightful characters.  The story moves onward smoothly, one event after the other, leading to the conclusion when trees discover the problem of global warming -- even though they don't know anything about atmospheric physics and have never seen a human being.  

Mancuso's trees have many "tree-like" characteristics, and they are far from being as clumsy and ugly as Tolkien's Ents. And note that there are no human beings whatsoever in the novel: it is only trees! But Mancuso's trees are, in my opinion, a little too humanized. They can move, speak to each other, and, in many ways, behave like human beings. Mancuso's forest looks very much like a modern university, with its various departments (=tribes) and their researchers, librarians, technicians, etc.

An expert in plant neurobiology, such as Mancuso, could have told us much more about how trees "think," if they do (I think they do!). But I can also understand that in novel terms it is not easy to build a story about creatures whose brain is located underground, cannot move, and perceive the external world mainly as a combination of chemical signals. The power of human imagination is immense, but it would be a truly alien novel, one that maybe only trees could read!

For me, the best human fiction piece that tries to understand trees is "The Secret of the Old Wood" (Il segreto del bosco vecchio) by Dino Buzzati (1935). It is, however, one of those masterpieces that go beyond the mere concept of narrative and touch the very fabric of the universe. If you can understand Italian, read the book or watch the movie (or both). It is a humbling experience that will make you reflect on what it means to be human. Or a tree. 

Flying Rivers, the Biotic pump, and the Consequences of Deforestation

A talk given a few years ago by Anastassia Makarieva where she focuses on the concept of "biotic pump" a fundamental concept of the biotic regulation of the ecosphere, part of the general concept of "Planetary Holobiont." She will update her results in a Webinar to be held on Jan 2nd, 2023. You can register at

https://tum-conf.zoom.us/webinar/register/5016722254879/WN_tDztF8fJSrGWOJLaYv5B2Q

The Holobiont's Decisional System: A Comment by Helga Ingeborg Vierich

Helga in Botswana with two Kua friends (image source)

A post by Helga Ingeborg Vierich


Here, Helga comments on my previous post "Why do we Always Choose the Decisional System that do the Most Damage," where I discuss the case of the sinking of the "El Faro" ship, caused by the way the command structure was organized. "Pyramidal" decisional systems place the power in the hands of a single person, (typically a man) and the person in charge doesn't have the flexibility to change his opinion, nor the capability to access the data on what's really happening. A Holobiont-like decisional system is much more flexible and attuned to the real world, as Helga describes here.  



Dear Ugo; this is wonderful.

It explains the danger of hierarchies of powerful authority so clearly! I am teaching introductory sociology this term and will be making this one of the supplemental readings, for the topic right now is the development of state-level societies. It is, indeed, in state-level societies that we see the development of these kinds of hierarchies.

People have frequently pointed to the pecking order of chickens, and the evidence of hierarchies based on aggression in chimpanzees and baboons, and used this as a justification for human hierarchical social organization. As if it were, thus, "natural". But everything we know now, about the social organization and behaviour of people in "tribal" and "band" level societies (based on hunting, gathering, fishing, swidden horticulture, or nomadic pastoralism) suggests that before the state developed, seniority-based hierarchies of authority rare, and socio-economic and power-based hierarchies were unknown. Decisions were rarely made without extensive discussion.

The whole dynamic of morality in forager economies is to enforce a degree of social equality: the networks are based on relationships of mutual support, not chains of authority. There are no permanent leadership positions. Group actions to enforce punishment of transgressors appear to arrive through consultation and consensus.

We find these forms of consensus-creation preserved in tribal societies as well, even those with more permanent leadership positions. This is perfectly articulated in the following:

“...Roland Chrisjohn, a member of the Iroquois tribe and the author of The Circle Game, points out that for his people, it is deemed valuable to spend whatever time necessary to achieve consensus so as to prevent such resentment. By the standards of Western civilization, this is highly inefficient.

“Achieving consensus could take forever!” exclaimed an attendee of a talk Chrisjohn gave. Chrisjohn responded, “What else is there more important to do?”” (quoted from
http://www.filmsforaction.org/articles/the-more-a-society-coerces-its-people-the- greater-the-chance-of-mental-illness/ )

Unlike the hierarchical systems in many larger primates, like chimpanzees, ranking systems among foragers and even among pastoral and horticultural peoples, are not derived from intimidation and aggression, but by acquired reputation for demonstrated moral virtues - like articulating a consensus. Such people are valued by the community and thus listened to, only after a history of demonstrated integrity involving a list of highly valued signs of good character: generosity, diplomacy, honesty, loyalty and recognized proficiency at important skills (hunting, gathering, cooking, singing, trance-dancing, music, storytelling or comedy).

In other words, they are people of high rank and good reputation. Among hunter-gatherers, therefore, differences in social rank rarely result in social inequality of access to vital goods and services, but instead, ensure such access.

Indeed, aggressive hierarchies are not even innate, even in baboons. Such behaviour is cultural - learned and shared. This was shown very clearly in Richard Sapolsky's story of his Keekorok baboon troop, and how after the alpha males died from tuberculosis, the troop very quickly transformed into a very peaceful troop, and since then, a peaceful approach has become a cultural norm for them. This was in contrast to the normal high levels of stress in the aggressive hierarchies of baboons. Sapolski's research indicates that stress created by hierarchies is a killer in human societies, and he is not alone in saying this. Gabor Mate has been very clear on this too, and has linked stress, addictions, and even the addiction to power.

Yes, our societies, in the world today, need to become more of a holobiont: the integration of many co-dependents is always going to produce a less dangerous and stressful alternative.


regards, Helga

Chip 'n Dale: Holobionts

 

Do you remember Chip 'n Dale? They were created by Walt Disney in 1943. It seemed wholly natural to viewers that they had a nice home inside the trunk of hollow trees. The idea that they were looking for natural cavities appeared from their very first story, which had to do with their attempt to settle inside the barrel of a cannon. 

Cannons are still abundant in the world, but hollow trees don't seem to be so common anymore. Think about that: have you ever seen a hollow tree outside horror fiction or cartoons? I never saw a hollow tree comparable to the fictional ones. It is only in parks that keep old trees that, occasionally, you can still see hollow trees, but rarely with those huge hollows where Chip and Dale could make their home. 

Yet, hollow trees have a special fascination and are part of forest lore everywhere in the world. They are not just fascinating for human beings, they are also home to all sorts of animal species. Birds, typically, but also larger ones, such as raccoons and even bears. In this sense, hollow trees are a feature of the forest holobiont, just one of the many multispecies holobionts that keep the ecosystem alive and adaptable. 

The formation of a hole on a tree stem is a wholly natural process that's generated, normally, by the action of specialized saprophyte fungi -- although woodpeckers can initiate the process and, sometimes, dig quite substantial holes. The plant is not normally harmed by one or a few hollows. Old trees tend to accumulate hollows, and when they die they become "snags," not anymore live trees, but still part of the forest ecosystem, homes to a variety of animal species.  

So, why so few hollow trees around? Have they become an abomination? Apparently, yes, I have a fig tree in my garden with a few hollows in the stem, and everyone who sees it asks when we are going to cut it. And that's the destiny of hollow trees everywhere. If you look at the term on the Web, you'll find plenty of pages describing "hollow tree removal services." It seems that hollow trees are indeed seen as a monstrosity, slated to be eliminated as soon as possible. And whenever a tree develops a hollow, it is plugged with cement or silicon, or whatever. 

More in general, hollow trees are a victim of the "optimization" trend in forest management. It doesn't matter whether it is a plantation or a park, if the idea is to make trees grow as fast as possible, then hollow ones have to be removed. It is typical of human management: it is aimed at maximizing just one of the parameters of the system. Instead, holobionts aim at optimizing all the parameters together. Humans aim at yield, holobionts aim at stability. Maybe, one day, humans will learn, and maybe they are already starting to learn. In the book "Chanterelle Dreams" by Greg Marley, you can find an entire chapter dedicate to how to restore tree hollows for cavity nesters. Some creative methods can be used, such as using shotguns to shoot slugs packed with fungal spawn into the bulk of a tree stem. It seems to be working -- so, not everyone marching into a forest with a shotgun in hand is there to do damage!

Up to not long ago, I was convinced that, apart from my fig tree, hollow trees had been scientifically exterminated in all the areas close to where I live. Instead, I discovered that the avenue just near my home is lined by wonderful honeyberry trees ("bagolari" in Italian), most of which have numerous, well-visible hollows. Some are clearly the result of branches having been cut off, others may have developed by themselves. I won't tell you where exactly this place is, least someone decides to cut these trees for being "dangerous" or to plug the hollows with cement. As far as I can say, these cavities are not inhabited by birds or other animals, probably because they line a trafficked road. But it is nice to know that there are places where owls, squirrels, and maybe Chip and Dale could take refuge if they decided to live in this area. Here are a few pictures.