We extended landscape-based population models to ecoregional scales for three species of concern in the Central Hardwoods Bird Conservation Region and compared model projections against long-term trend data from the North American Breeding Bird Survey.
Premise of the study: Microsatellite loci were isolated and characterized for Brazilian rosewood (Aniba rosaeodora), an endangered neotropical hardwood tree, to investigate population and conservation genetics of this highly valuable nontimber forest resource.
Aggregated across 5-year-age classes, ESF of deciduous-mixed forest covered 3.4%and0.9%9% of Bird Conservation Regions (BCR) 12 (Boreal Hardwood Transition) and 23 (Prairie Hardwood Transition), respectively, whereas woody wetland ESF constituted 1.0% and 0.2% of the same BCRs.
But the campaign that drew the most attention culminated in Disney's agreement last fall to stop producing paper products made from "irresponsibly harvested fiber," including tropical hardwood from areas that are highly valued for environmental conservation purposes.
The contiguous forest landscapes of the Brigalow Belt Bioregion in Australia's subtropics, known as 'the western hardwood forests' are thought to be important for biodiversity conservation through the provision of continuous habitat features in an otherwise extensively cleared region.
Mature hardwood stands, which were deemed to be of the greatest conservation value, were classified into eight ecological land types based on soil type, aspect, orientation and topographic setting for further study.
Peach, the phylogenetically-closest hardwood tree from this list, showed the highest amount of conservation with chestnut.
We conclude that when early seral hardwood forest is scarce, even small increases in hardwood may provide substantial conservation benefits.
Delegates to the Cites conservation meeting in Thailand have agreed far-reaching restrictions on the trade in critically endangered hardwood trees.
Michel Cuillerier, vice chairman of the conservation committee of the New Jersey chapter of the Sierra Club, said the development would require cutting more than 7,000 hardwood trees, which the developer plans to replace with less sturdy, younger softwood trees.
