Ecological Conditions. Summary of the effects of conditions on species distributions. Lethal conditions may limit distributions but they only need to occur occasionally in order to do so. Saguaro cactus in snow. Summary of the effects of conditions on species distributions.
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Key: dark blue – present in state; light blue – present in county;
pink – noxious weed
Pollution - unfortunately this is becoming a condition which species must respond to
2. Acid precipitation
Common redpoll Linnet
- Hutchinson 1958