Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Thomas B. Wigley"'
Autor:
Erik B. Schilling, George G. Ice, Alan A. Lucier, Robert J. Danehy, Thomas B. Wigley, Craig Loehle
Publikováno v:
Journal of Forestry. 112:41-47
Publikováno v:
Journal of Forestry. 111:126-131
Simple methods for estimating the proportion of land changing from forest to nonforest are developed. Variance estimators are derived to facilitate significance tests. A power analysis indicates that 400 inventory plots are required to reliably detec
Publikováno v:
Journal of Forestry. 110:123-128
Publikováno v:
The Journal of Wildlife Management. 44:264
Autor:
Mark K. Johnson, Thomas B. Wigley
Publikováno v:
The Journal of Wildlife Management. 45:251
In xeric regions fecal pellets may last for years, and thus are useful for estimating relative population sizes and diets of herbivores (Eberhart and Van Etten 1956, Wallmo et al. 1962, Flinders and Crawford 1977). Data on survivorship of white-taile