8. Coarse Woody Debris – Temperature

By looking at this snow, one can begin to see the difference, a few degrees can make.







270.  What makes a healthy tree or plant? The availability in the proper proportions of the right "STEW" - Space, Temperature, Elements and Water. And the energy of the sun will be used optimally making a tree into the most efficient system on earth. Everything is recycled.  How about animals?

271.  Sound CWD provides secure travel corridors for small mammals (Maser et al. 1979; Maser and Trappe 1984; Carter 1993), and provides subnivean habitat during winter. (Voller and Harrison, 1998).      

273.  Logs become habitat for a variety of invertebrate species shortly after falling. CWD is used by invertebrates as a source of food, for nesting and brooding sites, for protection from predators and Environmental extremes, as a source of construction material, and as overwintering and hibernating sites (Samuelsson et al. 1994) (Voller and Harrison, 1998).   

274.  CWD affects temperature as well as moisture, which can have a benefit for certain beneficial fungi (Amaranthus, Trappe and Bednar, 1994). 

275.  As decay proceeds, a fallen tree begins to more closely be hugged by the soil, it buffers it (the soil) against fluctuations in air temperature (Maser and Trappe, 1984, pg 13-par3).   

276.  A fallen tree performs various ecological functions between the time it falls and the time it is finally incorporated into the soil. If it lays up-and-down slope or falls across other downed trees, most of its volume is initially suspended above the ground.  Such elevated relief adds complexity to the forest floor by creating cover and shade (Maser, Tarrant, Trappe and Franklin, 1988, pg41-par6).    

277.  Martens select habitats partly on the basis of thermal microhabitats (Taylor 1993), such as those provided by CWD (Lofroth 1993; Buskirk and Powell 1994; Buskirk and Ruggiero 1994) (Voller and Harrison, 1998).       

278.  Symplastless wood provides physical structure to the ecosystem and fills such roles as sediment storage (Wilford 1984), protecting the forest floor from mineral soil erosion and mechanical disturbance during harvesting activities. It ameliorates the affects of cold air drainage on plants, helps stabilize slopes and minimizes soil erosion (Maser et al. 1988) (Voller and Harrison, 1998).    

279.  Conclusion:  What purpose and need is there, that the capacity and ability, of CWD, to function as thermal microhabitats, cover, shade provider, subnivean habitat during winter, protection provider as well as ameliorating the affects of cold air drainage on plants and potential to buffer soil against fluctuations in air temperature go unobserved in the “Burn and Clearcut Project”.

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