What soil characteristic actively impedes the movement and suitability of habitat for *H. nasicus*?
Answer
Heavy clay or tightly compacted soils
Areas with heavy clay or soils that are tightly compacted are generally avoided because they impede the snake's ability to move both above and below the ground surface.

Related Questions
What specific type of soil composition does the plains hognose snake strongly prefer?What morphological feature of *Heterodon nasicus* is specifically adapted for digging in loose substrates?Which geographical areas are generally avoided by the distribution range of the plains hognose snake?Besides escaping predators, what is a primary function of burrowing in loose soil for thermoregulation?What soil characteristic actively impedes the movement and suitability of habitat for *H. nasicus*?What specific geological features serve as important refugia for plains hognose snakes in South Dakota?The snake’s specialized niche is tightly linked to substrate because its primary amphibian prey often shares what requirement?What common human activity poses a significant threat by directly modifying the necessary soil substrate?How does the habitat requirement of the plains hognose differ from that of the Eastern Hognose (*H. platirhinos*)?What environmental factors are considered secondary in importance to soil texture when determining plains hognose presence?