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Nitrogen Spatial Heterogeneity Influences Diversity Following Restoration In A Ponderosa Pine Forest, Montana, Michael J. Gundale, Kerry L. Metlen, Carl E. Fiedler, Thomas H. Deluca
Nitrogen Spatial Heterogeneity Influences Diversity Following Restoration In A Ponderosa Pine Forest, Montana, Michael J. Gundale, Kerry L. Metlen, Carl E. Fiedler, Thomas H. Deluca
Forest Management Faculty Publications
The resource heterogeneity hypothesis (RHH) is frequently cited in the ecological literature as an important mechanism for maintaining species diversity. The RHH has rarely been evaluated in the context of restoration ecology in which a commonly cited goal is to restore diversity. In this study we focused oil the spatial heterogeneity of total inorganic nitrogen (TIN) following restoration treatments in a ponderosa pine (Pinus ponderosa)/Douglas-fir (Pseudotsuga inenziesii) forest in western Montana, USA. Our objective was to evaluate relationships between understory species richness and TIN heterogeneity following mechanical thinning (thin-only), prescribed burning (burn-only), and mechanical thinning with prescribed burning (thin/burn) to …
A Practical Look At The Variable Area Transect, Solomon Z. Dobrowski, Shannon K. Murphy
A Practical Look At The Variable Area Transect, Solomon Z. Dobrowski, Shannon K. Murphy
Forest Management Faculty Publications
The variable area transect (VAT) is a plotless density estimator that has received little attention in the ecological literature despite having potentially robust estimation properties. VAT allows for density estimations without the lengthy search times associated with other plotless density estimators. In spite of this, little has been written about the effect of varying transect widths on its density estimation properties or on the practical implementation of the VAT in field settings. An artificial population sampler was used to examine the effect of transect width on density estimates obtained using the VAT. Three transect widths were chosen corresponding to the …