Ecology. The bacteria that cause plague, Yersinia pestis, maintain their existence in a cycle involving rodents and their fleas. In urban areas or places with dense rat infestations, the plague bacteria can cycle between rats and their fleas.lague bacteria are most often transmitted by the bite of an infected flea. During plague epizootics, many rodents die, causing hungry fleas to seek other sources of blood. People and animals that visit places where rodents have recently died from plague are at risk of being infected from flea bites.
The interdependent thinking has been applied to develop varying business management and talent development models; such as, Human Factors spectrum model includes more detail about referential interdependent factors, organizational / governance, human-machine-interfaces, transitional factors, organization of work, procedures etc.
Economic interdependence. Economic interdependence is a consequence of specialization or the division of labour. The participants in any economic system must be part of a trading network to obtain the products they cannot produce efficiently for themselves. Any change in such a network affects other participants, so that the demands for various products and the incomes of the participants are interdependent. As A. A. Cournot wrote in Mathematical Researches into the theory of Wealth ...the economic system is a whole in