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Holobionts: a new Paradigm to Understand the Role of Humankind in the Ecosystem

You are a holobiont, I am a holobiont, we are all holobionts. "Holobiont" means, literally, "whole living creature." It ...

Friday, January 20, 2023

Reflections on Controlled Burning and Water Management

 


By our fellow holobiont, Ian Schindler

 

I had the following to say about Ugo's post on controlled burning: I would like to point out that solutions are not unique. Controlled fires might work, but there are usually other ways to achieve the stated goals. For example David Holmgren lives in Australia, is very sensitive to fire management, and does so without resorting to controlled fires.

Good water management can go a long way to reducing the window of opportunity for fires. Good water management consists of storing water when there is excess rain and slowly letting out the storage when there is no rain.  This regulates the flow of water to the sea so that when it rains the flow is decreased and when it doesn't rain the flow is increased.  As a consequence, the variation of the water content in plants is decreased
decreasing the risk of fires because the plants are rarely dry.

Note that an excellent place to store water is the soil. The soil is the plant gut. A compost pile is a powerful concentration of the plant gut. The greater the biomass of the soil, the greater its water capacity is. A compost pile can absorb 90% of its dry weight in water. The mycelium of fungi maintain soil integrity in the case of high water content.

Note also that the plant holobiont is an excellent water purifier. Most of what we consider pollution in water ways is food for plants once it has been digested by the plant holobiont. This includes animal excrement, petro-chemicals, most pesticides and herbicides, and explosives. It does take time to digest some of this stuff which is why Joseph Jenkins  recommends curing compost for a year before applying it. Outside of a compost pile the digestion will be slower, however sending water throughwetlands with plants purifies water far better than your standard water treatment plant at lower energy costs.

Applications:

1. Channels for excess water should be on level sets, spreading the water out (avoiding choke points) not down hill.
2.  In cities, it is a grave error to mix greywater with blackwater. Blackwater should be composted, greywater should be used to irrigate plants. This was established by the late Belgian chemist Joseph Országh in the 1990s.  See http://eautarcie.org/ for extensive videos on  designing such systems.

Examples of bad design in Los Angeles (note that according to https://www.greywatercorps.com/ 19% of the electric power used in Los Angeles is dedicated to pumping water, either from some source or in water treatment facilities).

1. The Los Angeles river used to have a floodplain that soaked up excess water and purified it during heavy rain.  The floodplain was drained, buildings were constructed and concrete was poured onto the river bed to "increase flood capacity".  This is of course very poor water management because both water storage and purification has been removed. Today    there are many projects to rectify this poor design non of which go far    enough in my opinion.
2. Our neighbors up the hill (in Los Angeles) have frequent problems with their sewage line. The pipes are very old and leak. Plant roots grow into the sewage line eventually blocking it so that every 6 months city workers come to cut out the roots growing in the pipes. Of course the plants are using much better water management than the people. They are slowing water flow into the ocean and doing some purification. If greywater was used for irrigation, there would be far less water flowingin the pipes and problems would be substantially reduced.
3. In 2022, new homes are required to send the rain water from the roof through a filter before it enters the storm drain to go out to the sea. It is hard to imagine a more ignorant mandate in an arid region. The mandate should be to store the rain water for use in the house.  

An example of good water management, the water wizard of Oregon: https://www.youtube.com/watch?v=BuYGS5pLRZg

I have become a big fan of living green roofs. Sun and precipitation wear down roofing material. In addition to protecting roofing material, putting soil for plants on roofs offers water storage and purification. Green roofs insulate from the heat and from the cold if the exterior temperature is below freezing. Living green roofs increase biodiversity by providing space for drought resistant plants and other creatures to thrive.  A few centimeters of soil on the roof should reduce the risk of the house burning as well.
 
Here is a link to Alan Savory's Ted Talk on holistic management of livestock preventing the need for fires in savannas in Africa:
https://www.ted.com/talks/allan_savory_how_to_green_the_world_s_deserts_and_reverse_climate_change?language=fr#t-769899,

Best,

Ian --

 

Holobionts are the building blocks of life!

Tuesday, January 17, 2023

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)



Tuesday, January 10, 2023

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:

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.


Wednesday, January 4, 2023

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. 






Sunday, January 1, 2023

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



Monday, December 19, 2022

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