found: Work cat.: Lam, T. Exploration of statistical methods for synthesizing the effects of variable-retention harvesting on multiple taxa, 2010.
found: Wikipedia, May 26, 2010(Variable retention; is a relatively new silvicultural system that retains forest structural elements for at least one rotation in order to preserve environmental values associated with structurally complex forest; traditional silviculture systems such as clearcut, patch cut, shelterwood, etc. are focused on maximizing timber production and future regeneration of the trees; variable retention on the other hand is focused on what is retained)
found: Serrouya, R. Variable retention forest harvesting : research synthesis and implementation guidelines, 2004.
found: Lindenmayer, D. The variable retention harvest system and its implications for biodiversity in the mountain ash forests of the Central Highlands of Victoria, 2007.
found: Barg, A. Silvicultural alternatives : variable retention harvests in forest ecosystems of western Washington : a guide for forest landowners, 2001.
notfound: McGraw-Hill dictionary of scientific and technical terms, 2003