hostcommensalism
Hostcommensalism is a biological interaction where one organism, the commensal, benefits from another organism, the host, without the host being significantly harmed or benefited. This relationship is characterized by the commensal deriving resources, shelter, or transport from the host. A common example is the relationship between barnacles and whales. Barnacles attach themselves to the skin of whales, gaining a stable substrate and access to nutrient-rich water as the whale moves. The whale, for its part, experiences minimal to no negative impact from the barnacles, and the barnacles do not provide any discernible advantage.
Another instance can be observed with certain species of mites that live on birds. These mites feed
The distinction between hostcommensalism and other symbiotic relationships like mutualism (where both organisms benefit) and parasitism