The tenantism is the relationship that is established between two living beings when one lives in the refuge of the other or even inside his body or on him, although without harming or affecting it. The tenant assumes the role of diner: it benefits from the link with the other species and does not cause harm or contribute something positive.
These consequences of interaction define inquilinism and differentiate it from mutualism (that helps the host) and the parasitism (that damages the host). In the case of tenancy, the tenant is favored by obtaining protection but without causing a disadvantage to the other body.
We can find multiple examples of tenancy in nature. There are insects that reside in the burrows created by the mice, eating mushrooms and waste. The squirrelsmeanwhile, they are installed inside the trunks of the trees.
The epiphytic plants, for their part, they develop on other plants, which they use as support. This relationship is one of tenantism because the epiphyte does not behave as parasite: does not get nutrients from the other species.
In the aquatic environment, there are crustaceans that adhere to the Whales. In this way, the body of the cetacean works as a support and even serves as a means of transport. Although sometimes the whale suffers some minor damage, the bond is considered tenancy.
The tenantism, in short, is a interspecific interaction between different species. One of them benefits from getting shelter, while the other is indifferent.