published in Nature Ecology & Evolution . The team, in which eight Spanish institutions participate, has analyzed the biodiversity in competitive environments of more than three hundred ecological communities around the world. Specifically, they have found that rare species are spatially associated in 90% of the animal and plant communities studied. This organization of species could explain how species that compete for the same resources coexist “Animal and plant communities are organized just as we do in cities, in ghettos or ethnic neighborhoods,” the researchers determine. “This organization could be behind the persistence of rare species since they could avoid the competitive pressure of the most abundant species, either because they cooperate with

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each other, or because they prefer specific France Phone Number List microhabitats or both at the same time”, they point out. The results of this research suggest a general explanation for the maintenance of biodiversity in competitive environments, qualifying the principle of competitive exclusion by which species with the lowest competitive abilities should be excluded by the most efficient competitors. “This pattern could explain how species that compete for the same resources are able to coexist”, comment the biologists. The Spanish institutions that have participated in this study are the National Museum of Natural Sciences (MNCN) and the Doñana Biological Station (EBD), both of the CSIC, the University of Alcalá, the Complutense University of Madrid, the Rey Juan Carlos

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University, the Autonomous University of Madrid, the University of Castilla-La Mancha and the University of the Basque Country. From conservation planning to disease study To carry out the study, more than three hundred ecological communities of mosses, herbs, trees, insects, arachnids and corals, among others, distributed throughout the world, have been analyzed. The researchers explain that, to detect the ghettos or groups, they used network theory while to study the mechanisms that gave rise to them they applied numerical simulations. The results of these simulations confirm that grouping between rare species is necessary to explain the coexistence patterns observed on a global scale. They have analyzed more than 300 ecological

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