منابع مشابه
Avian responses to selective logging shaped by species traits and logging practices.
Selective logging is one of the most common forms of forest use in the tropics. Although the effects of selective logging on biodiversity have been widely studied, there is little agreement on the relationship between life-history traits and tolerance to logging. In this study, we assessed how species traits and logging practices combine to determine species responses to selective logging, base...
متن کاملThe Optimal Selective Logging Regime and the Faustmann Formula
This study analyzes the optimal selective logging regime of a size-distributed forest where individual trees compete for scarce resources such as space, light, and nutrients. The decision problem of the forest manager is formulated as a distributed optimal control problem. The interpretation of the first-order conditions allows a generalization of the Faustmann formula. In an empirical part, th...
متن کاملEffect of Experimental Selective Logging on Tropical Butterflies
I investigated the effects of an experimental selective logging regime on the assemblage of fruitfeeding butterflies in replicated experimental plots in the Chiquibul Forest, Belize. Over a 12-month period, I caught 1187 individuals of 49 species using fruit-baited traps. Selective logging at densities of six stems per ha 3 years before the study had little effect on butterfly species richness,...
متن کاملLogging off
The World Bank estimates the value of the global illegal timber trade at more than $10 billion per year. Tracking the timber supply chain is poor and allows widespread illegal logging, log smuggling and log laundering, it believes. Timber taken from remote forests in Asia, Russia, South America and Africa is often shipped long distances and its only certification is a paper trail that is highly...
متن کاملLogging Concessions Enable Illegal Logging Crisis in the Peruvian Amazon
The Peruvian Amazon is an important arena in global efforts to promote sustainable logging in the tropics. Despite recent efforts to achieve sustainability, such as provisions in the US-Peru Trade Promotion Agreement, illegal logging continues to plague the region. We present evidence that Peru's legal logging concession system is enabling the widespread illegal logging via the regulatory docum...
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ژورنال
عنوان ژورنال: Nature Climate Change
سال: 2011
ISSN: 1758-678X,1758-6798
DOI: 10.1038/nclimate1361