Volume 24, No. 01 - January 13, 2012

Rates and causes of extinction

Craig Loehle and Willis Eschenbach are the authors of “Historical bird and terrestrial mammal extinction rates and causes” (Diversity and Distributions 18(1):84-91). Loehle and Eschenbach review several lines of evidence indicating that high extinction rates on islands are attributable to effects of uncontrolled hunting by humans and predation by introduced animal species. They also discuss reasons why models of extinction risk based on rates and causes of extinction on islands have limited applicability in conservation strategies for birds and mammals on continents.

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Beneficial uses of wood residues

NCASI is distributing Technical Bulletin No. 994, Beneficial Uses of Woody Biomass for Energy and Other Purposes by Dr. Ilich Lama. This report synthesizes published information on current inventories of wood residues in Canada and beneficial use options for these residues.

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Symposium on the assessment and management of environmental issues related to eucalyptus culture in the southern US

Eucalyptus species are among the most widely planted tree species in the world and of increasing interest as a bioenergy feedstock in the Coastal Plain of the US South. To help address environmental issues related to its potential culture in this region, NCASI and the USDA Forest Service Southern Research Station have assembled experts from the US and abroad to share data and perspectives in the Symposium on the Assessment and Management of Environmental Issues Related to Eucalyptus Culture in the Southern United States.


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EPA’s Pesticide General Permit

In October 2011, the US Environmental Protection Agency (EPA) released its final National Pollutant Discharge Elimination System (NPDES) Pesticide General Permit (PGP) for point source discharges from the application of pesticides to waters of the United States. EPA developed the PGP to provide an option for some pesticide applicators/managers to comply with NPDES permit requirements without having to obtain coverage under individual permits, which generally take longer to obtain and are more burdensome than general permits. 

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Proposal to list eight mussel species as threatened or endangered

In October 2011, the US Fish and Wildlife Service published a proposed rule to list eight species of freshwater mussels as endangered or threatened and to designate 1,495 miles of stream and river channels as critical habitat.

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