Bats use the bridge as a roost in order to meet their needs. Bridges can both help as well as hurt their chances of survival depending upon the construction pattern of bridges. It is an abiotic resource. Bats have to compete for thermal stability under the bridge.
The site which a bat inhabits is known as its roost. Bat gantries or bat bridges, are specially designed structures that are built to serve as linear features which will navigate echolocating bats over roads at a safe altitude above traffic.
Bats’ inhabitation of bridges is linked with two important behaviors i.e. day roosting and night roosting. Day roosting bats are sleeping, relaxing or caring for their pups.
Night roosting is a more transient behavior where bats search for temporary shelters normally following an early evening foraging.
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