The paradox of biological diversity is the key problem of theoretical ecology. The paradox consists in the contradiction between the competitive exclusion principle and the observed biodiversity. The principle is important as the basis for ecological theory. On a relatively simple model we show a mechanism of indefinite coexistence of complete competitors which violates the known formulations of the competitive exclusion principle. This mechanism is based on timely recovery of limiting resources and their spatio-temporal allocation between competitors. Because of limitations of the black-box modeling there was a problem to formulate the exclusion principle correctly. Our white-box multiscale model of two-species competition is based on logical deterministic individual-based cellular automata. This approach provides an automatic deductive inference on the basis of a system of axioms, and gives a direct insight into mechanisms of the studied system. It is one of the most promising methods of artificial intelligence. We reformulate and generalize the competitive exclusion principle and explain why this formulation provides a solution of the biodiversity paradox. In addition, we propose a principle of competitive coexistence.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1007/s10441-015-9257-9 | DOI Listing |
J Theor Biol
January 2025
Technion Israel Institute of Technology, Faculty of Mathematics, Technion City, Haifa, 3200003, Israel. Electronic address:
The competitive exclusion principle in epidemiology implies that when competing strains of a pathogen provide complete protection for each other, the strain with the largest reproduction number outcompetes the other strains and drives them to extinction. The introduction of various trade-off mechanisms may facilitate the coexistence of competing strains, especially when their respective basic reproduction numbers are close so that the competition between the strains is weak. Yet, one may expect that a substantial competitive advantage of one of the strains will eventually outbalance trade-off mechanisms driving less competitive strains to extinction.
View Article and Find Full Text PDFBackground: Vast volumes of routinely collected data (RCD) about patients are collated by health professionals. Leveraging this data - a form of real-world data - can be valuable for quality improvement and contributing to the evidence-base to inform practice. Examining routine data may be especially useful for examining issues related to social justice such as health inequities.
View Article and Find Full Text PDFSurg Endosc
January 2025
Department of Surgery, St. Antonius Hospital, Koekoekslaan 1, 3435 CM, Nieuwegein, The Netherlands.
Introduction: Implementation of enhanced recovery after surgery principles has led to exploration of ambulatory pathways in surgery, including gastrointestinal surgery. However, implementation of ambulatory pathways after colorectal surgery has not been established yet. Previous studies suggest that discharge within 24 h in colorectal surgery is only possible with a clear protocol and careful patient selection.
View Article and Find Full Text PDFMem Cognit
January 2025
Department of Psychology, Technische Universität Dresden, Zellescher Weg 17, 01062, Dresden, Germany.
Theorists across all fields of psychology consider goals crucial for human action control. Still, the question of how precisely goals are represented in the cognitive system is rarely addressed. Here, we explore the idea that goals are represented as distributed patterns of activation that coexist within continuous mental spaces.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!