A certain species of pine tree survives only in scattered locations at elevations above 2,800 meters in the western United States. To understand why this tree grows only in these specific places, an ecologist should investigate the various biotic and abiotic factors that are unique to high altitudes.
The survival of certain species of pine trees only at elevations shows that there will definitely be a biotic or abiotic factor that enhances the growth of the pines at that place.
It might be due to abiotic factors like the temperature of the soil at high altitudes or due to some biotic factor like a mutualistic relationship with organisms at high altitudes.
Microclimatic conditions depend on such factors as temperature, humidity, wind and turbulence, dew, frost, heat balance, and evaporation. The effect of soil type on microclimates is considerable.
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