| Stoica GODEANU1, 2, Roxana Corina SFETEA3
Abstract: This paper briefly reviews the history of ecology, emphasizing the moment of the appearance of the concept of interaction between living and non-living phenomena, as well as the influence exerted by the cosmic processes on the different levels. The seven levels of the systemic organization of the living world are reviewed: the individual, the population, the ecosystem, the landscape, the biome, the ecosphere and the anthroposphere. For each level, a definition is provided, the field of ecology dealing with it is presented, and its main characteristics are shown. The paper concludes with several general conclusions. Keywords: history of ecology, levels of organization, fields of ecology DOI 10.56082/annalsarscibio.2026.1.7 Read full article 1Academy of Romanian Scientists, Ilfov Street 3, Bucharest, Romania 2Prof Univ. Emeritus PhD, Ovidius University, Faculty of Natural Sciences and Agronomy, Constanța, Romania, email: stoicagodeanu@gmail.com 1Prof Univ. PhD, University of Medicine and Pharmacy “Carol Davila” Bucharest, Romania |
PUBLISHED in Annals Academy of Romanian Scientists Series on Biology, ISSN ONLINE85 – 4177 |

