Antarctica: a cold, but not sandy, desert |
Your average elementary ecology book will explain that there are both biotic (living) and abiotic (non-living) elements of an ecosystem, no matter whether it’s a forest, an ocean, the tundra, or a desert. The abiotic elements are those that are essential to life for the plants, animals, and other living things in an ecosystem. Sunlight, air, water, and soil are often cited, as well as climate. Kroll extracted that information somewhere, stating in his introduction that
“Abiotic components are those nonliving things, especially environmental elements that exist within the ecosystem, such as water, dirt and air. In a desert ecosystem, much of what designates the system as desert is nonliving.”We aren’t sure that we’d call “dirt” an “environmental element,” but otherwise Jess is on the right track. Which is why it gets hilarious when Kroll gets around to listing five, not four, nonliving things in a desert ecosystem:
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- “Mountains: Although not typically associated with the image of flat, open deserts, mountains are often found within the ecosystem. Carved by strong winds over millions of years, desert mountains are often steep and craggy rather than smooth and rolling.”... Ummm, no, Jess, mountains aren’t “carved by strong winds”! Think water, dumbass, either liquid or frozen!
- “Water: Although not as abundant in the desert ecosystem as in others, water is still found throughout the desert. The few types of life found existing in the desert depend on the presence of water, from running rivers to rain and runoff.”... “Few types of life”? Idiot – you blew a great chance to discuss adaptation, but you were too ignorant to mention it.
- “Air: Although omnipresent in all other ecosystems, air plays an especially important role in the creation of the desert. The lack of vegetation allows the wind to blow across the land and slowly carve up the rocks resulting in both sand and mountains.”... First off, air isn’t present in “all… ecosystems”: consider the marine ecosystem. And there’s that moronic wind erosion crap again…
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SI - ECOLOGY
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