Why Are Microbes Ubiquitous?

Microbes have astronomical abundance on a global scale. As a consequence, species are ubiquitous, so speciation and extinction are rare, the global number of microbial species is relatively small, and local species richness is a large pro- portion of global species richness.

What does it mean to say microbes are ubiquitous?

Microorganisms are ubiquitous; that is, they are present nearly everywhere. In this lab you will try to isolate bacteria and other microorganisms from various sources using different types of media.

What makes bacteria ubiquitous?

To provide more evidence of ubiquity, some microorganisms -- endoliths -- are inside rocks or between grains of minerals. These bacteria, fungi, or archaea are found both above and below the Earth's surface. Because of their unique homes, some endoliths are autotrophs, making their own food from surrounding matter.