https://www.socictopen.socict.org/files/original/16eecea4948829d1930df08e41745647.pdf a8a9e8b4210169329537cba1242a3268 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Bases para a aplicação da teoria da informação em ecossistemas, com ênfase na ascendência Information theory in ecosystems: the use of ascendency and overhead Creator An entity primarily responsible for making the resource Ronaldo Angelini Description An account of the resource Os ecossistemas crescem e desenvolvem-se dentro das restrições termodinâmicas. Uma das formas de se medir o estágio de amadurecimento de um ecossistema é avaliar suas propriedades emergentes, que apesar de não realizarem trabalho no sentido físico, influenciam seu desenvolvimento. Essas propriedades podem ser quantificadas em funções-meta que servem como indicadoras da qualidade do ecossistema. Neste trabalho, são detalhadas, em vários aspectos, duas funções-meta: ascendência e “overhead”. Ambas são baseadas na Teoria de Informação, sendo que a primeira delas reflete o grau de ordem do sistema e a segunda o de desordem. Apesar dos sistemas tenderem à maior organização, um nível de desordem é imprescindível para manter essa mesma ordem. As funções são descritas matematicamente e, através de um exemplo hipotético, os seus cálculos são realizados de forma que possam ser refeitos por interessados no assunto.Ecosystems grow and develop subjected to thermodynamic constraints. Emergent properties can measure the ecosystem maturity. These properties do not do causal work but they influence the system development and they can be shown as goal functions that indicate the health of ecosystems. In this paper, two goal functions are detailed: ascendency and overhead. The origin of them is the Information Theory. Ascendency shows the degree of system order while overhead quantifies the disorder component. Although, systems tend to order increasing ascendency, a certain disorder degree is indispensable to sustain the order. Ascendency and overhead are described mathematically and the calculations are exemplified through a hypothetical ecosystem. Date A point or period of time associated with an event in the lifecycle of the resource 2002 Subject The topic of the resource Ascendencia, ecología, overhead, teoria de ecossistemas Identifier An unambiguous reference to the resource within a given context 10.4025/actascibiolsci.v24i0.2262 Source A related resource from which the described resource is derived Acta Scientiarum : Biological Sciences Publisher An entity responsible for making the resource available Universidade Estadual de Maringá Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Biology (General), Microbiology Relation A related resource <a href="http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2262" target="_blank" rel="noreferrer noopener">http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2262</a>