Learn: About Different Topics


For each site in Trek Birmingham, you’ll see we identify its ecoregion. An ecoregion is part of a mapping system based not on cities and counties, but on ecology. Plants and animals don’t pay much attention to human boundaries – a tree doesn’t know if it’s Alabama or Georgia and a bird flits easily across state or county lines — but biologists rely on maps to document species distribution, so they use to ecoregions to show where plants and animals can be found.
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We hear a lot these days about diversity in our communities. Diversity is just as important – or perhaps even more so — in the biological world. Even in the busy city, we are surrounded by – and part of — natural ecosystems, or collection of organisms living together plus the inanimate parts of their environment, like rocks and soil. Continue reading


To many, geology may just be a bunch of rocks. But the geology of our land influences everything from the industry of our region to where our homes are built to the ecosystems all around us. All of these things are shaped by millions of years of geological processes: the collision of continents, the formation of mountains, drastic shifts in sea level and the thawing after the ice age. Continue reading


When a drop of water falls, where does it go? It all depends where it is in the watershed. A watershed is an area in which all the surface water drains to one place, such as a stream or river plus the land around it that drains into it. Watersheds are like nesting dolls, with each one fitting into the next. For instance, in Birmingham, Village Creek is part of the Locust Fork Watershed, which is part of the Black Warrior River Watershed, which is part of the Mobile River Basin. Continue reading