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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 ...
Sunday, January 8, 2023
Wednesday, January 4, 2023
The Return of the Ents: The Tribe of the Trees
Shall come against him.
Sunday, January 1, 2023
Flying Rivers, the Biotic pump, and the Consequences of Deforestation
Monday, December 19, 2022
The Holobiont's Decisional System: A Comment 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
Tuesday, December 13, 2022
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.Sunday, December 4, 2022
How Gaia Saved the Earth from a Cold Death
It is always amazing to realize how complex is the system that we call the "Ecosphere". And how the system's complexity keeps its parameters within the limits needed for life to exist and prosper. It is the concept of "Gaia" as it was proposed by James Lovelock and Lynn Margulis. The ecosystem is in homeostasis and tends to maintain relatively constant parameters by means of a tangle of internal feedbacks, as all complex adaptive systems ("CAS") do.
But homeostasis doesn't mean perfect stability. The system's parameters may oscillate - even wildly - before the internal feedbacks can bring them back to the "good" values. Sometimes the system gets close to its limits and it may well be that, at times in its long history, the ecosystem risked going over the edge and then Gaia could "die." This seems to be a common destiny for extrasolar planets, as recently argued by Chopra and Linewaver.
A recent paper by Galbraith and Eggleston on Nature starts from these concepts, noting how the concentration of CO2 in the atmosphere never went below ca. 190 ppm during the past 800,000 years. That happened in correspondence with the lowest temperatures ever observed during that period: the planet was going through a harsh ice age.
About these ice ages, there is an interesting point related to the system's feedback. The more ice there is, the more reflective the planet's surface becomes (more exactly, the planetary albedo increases). But, the more reflective the planet's surface is, the cooler the planet becomes. So, we have an enhancing feedback that may transform the whole planet into a single, frozen ball: "snowball earth". It has happened, although possibly not completely, at least twice in the history of Earth. It was during the period we call, appropriately "Cryogenian," from 720 to 635 million years ago. It was not a real "snowball" -- not all of Earth was covered in ice. But what was not under the ice was a frozen desert. To give you some idea of the fascination of this subject, here is an excerpt from the abstract of a paper by Hoffmann et al. on "Science"
"....the small thermal inertia of a globally frozensurface reverses the annual mean tropical atmospheric circulation, producing an equatorial desert and net snow and frost accumulation elsewhere. Oceanic ice thickens, forming a sea glacier that flows gravitationally toward the equator, sustained by the hydrologic cycle and by basal freezing and melting. Tropical ice sheets flow faster as CO2rises but lose mass and become sensitive to orbital changes. Equatorial dust accumulation engenders supraglacial oligotrophic meltwater ecosystems, favorable for cyanobacteria and certain eukaryotes. Meltwater flushing through cracks enables organic burial and submarine deposition of airborne volcanic ash. The sub-glacial ocean is turbulent and well mixed, in response to geothermal heating and heat loss through the icecover, increasing with latitude. Terminal carbonate deposits, unique to Cryogenian glaciations, are products of intense weathering and ocean stratification. "
Can you imagine the Earth in these conditions? A wasteland of dry deserts and ice sheets. At that time, there were no multicellular creatures and life may have survived in hot pockets, maybe volcanic lakes, where it was still possible to find liquid water.
We may have been dangerously close to a new snowball Earth episode during the past million years or so. Not a trifling matter because today the ecosphere is much more complex than it was at the time of the Cryogenian. A new snowball Earth would likely cause all vertebrate lifeforms to go extinct. It is not just a question of being too cold: the limit of concentration of CO2 that permits plants to perform photosynthesis at a reasonable rate is considered to be around 150 ppm, at least for the most common kind of plants. Under that value, all multicellular plants die, and with them all animal life. Only single-celled creatures could eke out a precarious existence in those conditions.
But something prevented the ice sheets to expand all the way to envelop the whole Earth and, at the same time, prevented the CO2 concentration to go below 190 ppm. What was that? Several hypotheses are possible. Galbraith and Eggleston favor a biological one, saying that:
In terrestrial ecosystems, carbon fixation by plants is limited by low ambient CO2 (ref. 31). On this basis, ref. 12 proposed that CO2-limitation had significantly reduced plant-mediated silicate weathering during low-CO2 intervals of the past 24 million years, thereby enforcing a lower bound on the ocean–atmosphere carbon inventory over >10^5 yr timescales. Subsequent experiments have been consistent with this ‘carbon starvation’ mechanism, showing reduced weathering by tree-root-associated fungi under low CO2 (ref. 32). Although the feedback on silicate weathering would appear too slow to play a role on the 104 yr timescale of glacial CO2 minima 30, it may be possible that strongly reduced weathering rates lowered ocean alkalinity (thereby decreasing CO2 solubility) on a millennial timescale. Alternatively, reduced photosynthesis rates during the LGM (last glacial maximum) would have slowed the accumulation of terrestrial biomass14, consistent with estimates for lower terrestrial primary production rates33. By slowing the accumulation of carbon in vegetation and soils, this would have provided a stabilizing feedback via an increase of the ocean–atmosphere carbon pool.
Complicated stuff, right? But, basically, the idea is that CO2 is slowly drawn down from the atmosphere by a reaction with rocks (silicates), forming carbonates. This reaction is called "weathering" and it is favored by plants, whose roots provide a good environment for it to take place. Fewer plants, less CO2 drawdown. At the same time, a smaller global biomass means that the quantity of CO2 stored in it becomes lower and this extra carbon most likely ends up in the atmosphere as CO2. So, there are two feedbacks embedded in the system that tend to stabilize its temperature. But, as you may understand from the text by Galbraith and Eggleston, it is even more complicated than this! In any case, these stabilizing geobiological feedbacks oppose the ice/albedo feedback and tend to slow down the glaciation before the two sides of the ice sheet touch each other at the equator.
But suppose that the Earth really became the snowball that some studies claim to have observed: how did it recover? If it is frozen, it is frozen. Maybe not completely dead, but poor Gaia was reduced to a minor sprite inhabiting hot springs. How could Earth return to the lush ecosphere we are used to?
There is an explanation: it is because volcanoes do not care whether the Earth's surface is frozen or not. They continue pumping CO2 and other greenhouse gases into the atmosphere. Again from Hofmann et al.
“If a global glaciation were to occur, the rate of silicate weathering should fall very nearly to zero (due to the cessation of nor-mal processes of precipitation, erosion, and runoff), and carbon dioxideshould accumulate in the atmosphere at whatever rate it is releasedfrom volcanoes. Even the present rate of release would yield 1 bar ofcarbon dioxide in only 20 million years. The resultant large green houseeffect should melt the ice cover in a geologically short period of time”[(69), p. 9781]. Because Snowball Earth surface temperatures are below the freezing point of water everywhere, due to high planetary albedo,there is no rain to scrub CO2(insoluble in snow) from the atmosphere."
Note one subtle detail: if temperatures were to go below the freezing point of CO2 (-78 C) even in small regions at the poles, that would form a nearly infinite CO2 sink. And that would be "snowball forever" -- maybe it would have made the Goddess Khione happy, but it didn't happen. Possibly, that was too cold even for a Winter Goddess!
In any case, it seems that CO2 was pumped into the atmosphere by volcanoes, maybe it was the work of the volcanic form of Gaia, the goddess Pele, known for her habit of taking lava showers.
When the CO2 concentration arrived at levels hundreds of times those of the present-day atmosphere, the result was a cataclysmic rapid collapse of the glaciers and a rise in temperatures. Not only the Earth's ecosystem was saved from a cold death, but it rebounded spectacularly: it was now the time of the "metazoa," the formal term indicate animals. There came the Cenozoic, in which we are still living, with its incredible variety of lifeforms when plants and animals colonized the continental lands.
You see how the job of Gaia is not so simple. it involves a delicate balance of many factors. Some tend to stabilize the system, while others tend to destabilize it. During the past 15 million years or so, cooling factors took the lead and slowly pushed Earth to lower and lower CO2 concentrations and, with that, lower temperatures.
Wednesday, November 30, 2022
Holobionts of all the world, unite against totalitarianism!
Image from the Genetic Literacy Project
This is taken from a discussion we had with the members of the mailing list "The Proud Holobionts" a couple of weeks ago. It is inspired by the chapter that I am preparing for the book "Life and the Construction of Reality" edited by Pierre Imbrogiano and David Skrbina.
I keep finding hugely interesting things on the Web. Too many, and I am losing a lot of time following links that lead me to unexpected discoveries. But so is life and, just to make you suffer as much as I do, let me alert you about this paper by Harald Walach, researcher in the field of medicine and psychology. The post is a comment about Mattias Desmet's "The Psychology of Totalitarianism" -- another hugely interesting thing that I am trying to avoid reading because it would completely absorb me for days.
So, here is the link to Walach's paper
https://harald-walach.info/2022/10/17/a-middle-way-in-difficult-times/
The point that Walach makes does not look like it is related to Holobionts, but, in my opinion, it is. Read this, first, from the paper:
"The ideology of naturalism has become more and more widespread since the beginning of the Enlightenment and dominates the brains and hearts of many people, especially those in important positions in science, politics, business, the media, and perhaps even religions. It leads to people feeling more and more like isolated atoms in a world without meaning or purpose. This gives rise to fear. But this fear has no goal, it just lies there. In psychology, we speak of “free-floating fear”. It leads to frustration and aggression. If this is the case with a large number of people, then this fear will always look for a new object to direct itself towards Terrorists, Islamists, foreigners, climate catastrophe – or a pandemic.
"In such a situation, self-organization processes emerge that lead relatively quickly to new structures, new patterns, and new orders – the “new normal” – which then suddenly seem very logical. These self-organization processes seem to be so well coordinated that one cannot imagine them arising of their own accord. But they do in fact arise of their own accord. Towards the end of his book, Mattias Desmet presents a few striking examples from chaos theory that explain how such things work.
"And now something important happens: the formerly atomised individuals, each bobbing along in a meaningless and empty world, now suddenly feel a new sense of purpose. And above all: they feel new connectedness with others. All are united in fighting this new threat and something emerges that they have not felt for a long time: a sense of belonging, of connection, of solidarity with others.
This in turn leads to the in-group of believers, similar to the members of religious groups or political parties, feeling good internally and delimiting themselves externally: against the others, the pagans, the unbelievers, the sceptics and doubters. Their arguments, threats against the newly created world view, are thus devalued, no longer find a hearing, no longer penetrate the channels of reporting of the mainstream media, but have to look for side channels."
Walach (and Desmet) have a perfectly fundamental point. Atomized individuals seek "something" -- an idea, a religion, a leader, a master, something that gives meaning to their life. The result is often "totalitarianism" in the sense that the atomized individuals find themselves at home under an "umbrella" organization that rules them from above. If you have friends in the military, you may notice how many of them feel about that. They recognize the enormous defects and inefficiency of military organizations but, all the same, they feel comfortable with the idea of belonging to a tight group that gives them a purpose.
Walach proposes a solution. He says, "The solution is to speak. Words trigger
hypnosis. Words can also release it. By speaking, writing, discussing,
whether in public, at home or at work." It can't work with the true
believers, but Walach doesn't suggest speaking to the hypnotized, but to
that fraction of the population that's not completely dazed by the
propaganda barrage they receive. But it is not easy, and you always risk
pushing the lukewarm ones into the group of those burning with faith.
It may work, but I am not sure about that. Walach and Desmet may have identified the problem, but that doesn't mean that the solution is good. The way I see this matter is that totalitarian structures are "vertical." That is, a true totalitarian organization is one in which you only communicate with those above you, and those below you, but not with those at the same level. Because of this structure, whatever comes from the top diffuses down, and is not subjected to discussion. You know that it is bad: it means that the mistakes made at the top cannot be corrected -- there is just no mechanism for the bottom layers to influence the top layers. If there is, it is very weak and easily perverted, just like our election. But it is a structure that makes you feel safe, so you accept it.
So, if we want to change the vertical structure we must propose a different form of organization that can provide some of the same benefits, without being so rigid and inflexible as the typical hierarchical pyramid. So, what if we were to propose the holobiont as the social structure
that avoids totalitarianism? If you are part of a holobiont, you don't have
a master. Holobionts are non-hierarchical networks mainly based on
local interactions among nodes (e.g. people). Typically they are smaller than hierarchic networks and tend to form higher order holobionts forming fractal structure. Mutual holobiontic
interactions are based on self-respect and they have harmony as their
purpose. It is a horizontal kind of network.
A holobiont may be slower to react than a hierarchical structure because the signal that comes from an outside perturbation needs to diffuse from node to node, and that takes time. But it is more flexible and I believe it can avoid the terrible mistakes that pyramidal structures are known to do.
Could that be the way to avoid totalitarianism? I am not sure, but I think it is at least a promising idea. And, in any case, the push toward localism and relocalization is evident everywhere. We still have to learn how to make large hierarchical organizations, and maybe the best idea is just to avoid building them!
Onward, fellow holobionts!