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Displaying 441 - 445 of 1195Supporting conservation with biodiversity research in sub-Saharan Africa’s human-modified landscapes
Protected areas (PAs) cover 12� % of terrestrial sub-Saharan Africa. However, given the inherent inadequacies of these PAs to cater for all species in conjunction with the effects of climate change and human pressures on PAs, the future of biodiversity depends heavily on the 88� % of land that is unprotected. The study of biodiversity patterns and the processes that maintain them in human-modified landscapes can provide a valuable evidence base to support science-based policy-making that seeks to make land outside of PAs as amenable as possible for biodiversity persistence.
abundance of rare tree species in remnant forests across the Visayas, Philippines
In several tropical regions of the world, formerly widespread forests have been reduced to scattered remnants, and many tree species are becoming increasingly endangered. Knowledge on the population status of rare species is essential to inform conservation efforts and, in particular, the use of native species for reforestation projects stemming from emerging land-use strategies. We studied 20 mostly red-listed native species in remnant forests on five limestone-, four volcanic- and one ultramafic site(s) across the Visayas in the Philippines, with 40 plots being assessed at each site.
Failure of black cohosh (Actaea racemosa L.) rhizome transplants: potential causes and forest farming implications
Black cohosh (Actaea racemosa L.) rhizomes are harvested extensively from eastern North American forests and sold worldwide for treatment of menopausal symptoms. While forest farming is encouraged to reduce wild-harvest impacts, little information is available to aid landowners in successfully cultivating black cohosh. This study examined survival and multi-year growth of 200 black cohosh rhizomes collected from an Appalachian deciduous forest and transplanted to a similar forest type.
Acacia nilotica-based silvipastoral systems for resource conservation and improved productivity from degraded lands of the Lower Himalayas
High population density and unscientific land use practices have induced severe land degradation in the fragile Lower Himalayan ecosystem of India. Land cover management has been an effective strategy in managing land degradation through the reduction of water, soil and nutrient losses and improvement in soil fertility and quality.
Carbon sequestration of modern Quercus suber L. silvoarable agroforestry systems in Portugal: a YieldSAFE-based estimation
Modern alley cropping designs, with trees aligned in rows and adapted to operating farming machinery, have been suggested for Europe. This paper explores the potential for adoption of cork oak (Quercus suber L.) agroforestry in Portugal and estimates the potential carbon sequestration. Spatial modeling and Portuguese datasets were used to estimate target areas where cork oak could grow on farmland. Different implementation scenarios were then modeled for this area assuming a modern silvoarable agroforestry system (113� trees� ha⁻¹ thinned at year 20 for establishing 50� trees� ha⁻¹).