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photo credit Nasa / Goddard Space Flight Center / Reto Stöckli Postulada por James Lovelock y apoyada por Lynn Margulis HIPÓTESIS GAIA. TEORÍA GAIA METÁFORA DEL CAMELLO Camellos regulan su temperatura corporal a dos niveles distintos pero estables: De día con calor. Se denomina a esta hipótesis “Gaia” porque es 4. LA IDEA DE LOVELOCK.

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She defined Gaia as “the series of interacting ecosystems that compose a single huge ecosystem at the Earth’s surface. The constant ocean salinity was a long-standing mystery, because no process counterbalancing the salt influx from rivers was known.

Gaia hypothesis

Chapter 5 3rd Edition. The role of selection is to favor organisms that are best adapted to prevailing environmental conditions. The originality of the Gaia hypothesis relies on the assessment that such homeostatic balance is actively pursued with the goal of keeping the optimal conditions for life, even when terrestrial or external events menace them.

The hypothesis contends that this system as a whole, called Gaia, seeks a physical and chemical environment optimal for contemporary life. The major questions were: A New Look at Evolution.

How plants changed Earth’s history. James Lovelock called his first proposal the Gaia hypothesis but has also used the term Gaia theory. Archived from the original on 9 February One thing you could do, and it is no more than an example, is to eat less beef.

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Gaia hypothesis – Wikipedia

The Introduction to Ocean Sciences. According to the historian D. Avoiding dangerous climate change Land allocation decision support system. Topics related to the hypothesis include how the biosphere and the evolution of organisms affect the stability of global temperaturesalinity of seawateratmospheric oxygen levels, the maintenance of a hydrosphere of liquid water and other environmental variables that affect the habitability of Earth.

Such introspection hipotseis inescapable. Lynn Margulis joined Lovelock in the effort of fleshing out the initial hypothesis into scientifically proven concepts, contributing jamex knowledge about how microbes affect the atmosphere and the different layers in the surface of the planet. McIntyreJames Hutton, often known as the father of geology, said in a lecture before the Royal Society of Edinburgh in the s that he thought of the Lovelok as a superorganism and that its proper study would be by physiology.

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Their replacement by cropland could precipitate a disaster that is global in scale. Responding to this critique inLovelock stated, “Nowhere in our writings do we express the idea that jipotesis self-regulation is purposeful, or involves foresight or planning by the biota “.

The web of life: It affects even Darwin’s great vision, for it may no longer be sufficient to say that organisms that leave the most progeny will succeed. Link Lovelock, James The book’s most memorable “slogan” was actually quipped by a student of Margulis’: Geological history of oxygen.

The Gaia hypothesis posits that the Earth is a self-regulating complex system involving the biospherethe atmospherethe hydrospheres and the pedosphere gaja, tightly coupled as an evolving system. The Chemical Evolution of the Atmosphere and the Oceans.

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The Life of an Independent Scientist. A New Look At Evolution. Lovelock called it first the Earth feedback hypothesis, [42] and it was a way to explain the fact that combinations of chemicals including oxygen and methane persist in stable concentrations in the atmosphere of the Earth. Lovelock started defining the idea of a self-regulating Earth controlled by the community of living organisms in Septemberwhile working at the Jet Propulsion Laboratory in California on methods of detecting life on Mars.

It showed us just how far from reality we had strayed. However, she objected to the widespread personification of Gaia and stressed that Gaia is “not an organism”, but “an emergent property of interaction among organisms”.

Of Homeostatic Gaia, Kirchner recognised two alternatives. Does this apply to humans now? Advances in the Astronautical Sciences.

Gaian hypotheses suggest that organisms co-evolve with their environment: The Gaia hypothesis was an influence on the deep ecology movement. Lovelock was careful to present a version of the Gaia hypothesis that had no claim that Nipotesis intentionally or consciously maintained the complex balance in her environment that life needed to survive. The latter is the “weakest” form of Gaia that Lovelock has advocated.