Microgeography: Bus Stop Algal Ecology

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An algal ecology on a bus stop roof revealed after a snail has fed on part of it and left behind marks made by its radula.  

The microbiological world is a vast domain of life occupied by organisms which are too small to be seen with the naked eye. Because of their diminutive size, its denizens are largely ignored, yet in terms of impact and numbers, they represent the predominate form of life on earth.

In the familiar settings of our towns and cities, the same microorganisms have established thriving and complex ecologies that are almost always overlooked, yet the very existence of these and the extent of their vigour, can act as a powerful barometer for the health of our own urban environments.

Microgeography, is an approach that explores the relationships between urban environments and their microbial and human inhabitants through walking and informed observation, and often via a variety of playful and inventive strategies. Its overriding aim is to take pedestrians off their predictable macroscopic paths and to jolt them into a new awareness of the vast, but nearly always disregarded, urban microbiological landscape. These microcosms of microbiological life reflect the health of our own cities and towns, and thus through the process of microgeography, the observer is invited to question the influence of human activity upon this urban microbiological landscape, and hopefully through this, to extrapolate the impact of our actions on to the more visible world beyond.

Microbial life is everywhere if you know how to look. Here an ecology of algae on a glass bus stop roof in Farnham is revealed after a snail has fed on part of it and left behind marks made by its radula.

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