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USFS -5 days ago

Ecohydrological processes explain urban dry island effects in a wet region, southern China

Conversion of agricultural lands to urban uses affects regional and global climate not only through the release of greenhouse gases but also through altering land surface physical processes such as energy and water balances. Most existing studies on the meteorological impacts of urbanization focus on urban heat island effects with little attention on its impacts of atmospheric humidity, a key vari...

USFS -5 days ago

Temperature responses of carbon dioxide fluxes from coarse dead wood in a black ash wetland

The invasive emerald ash borer (EAB, Agrilus planipennis Fairmaire) causes widespread ash tree mortality in North America, and the CO<sub>2</sub> efflux (respiration, F) from coarse dead wood (CDW) following the EAB infestation is unknown. We examined seasonal variations in CO<sub>2</sub> fluxes from various types of CDW (cut ash stumps, downed logs, and standing girdled de...

WRI -5 days ago

STATEMENT: Trump’s Proposed Rollback of Water Protections Will Lead to High Costs and More Pollution

STATEMENT: Trump’s Proposed Rollback of Water Protections Will Lead to High Costs and More Pollution WASHINGTON (December 12, 2018) —The Trump Administration proposed new restrictions on which wetlands and waterways will be protected by the Clean Water Act. The proposed rule will re-define the protected "Waters of the United States," to exclude temporary streams that flow after heavy rain and ...

FAO -2 weeks ago

Action, local involvement urged to protect Sahel birds and wetlands

FAO and its partners called for urgent action to find alternatives to unsustainable hunting of migratory birds in Africa’s Sahel region, saying it was essential to conserve the area’s waterbirds and wetlands and improve long-term food security....

USFS -3 weeks ago

Forested versus herbaceous wetlands: Can management mitigate ecohydrologic regime shifts from invasive emerald ash borer?

Wetlands self-organize through reciprocal controls between vegetation and hydrology, but external disturbance may disrupt these feedbacks with consequent changes to ecosystem state. Imminent and widespread emerald ash borer (EAB) infestation throughout North American forested wetlands has raised concern over possible ecosystem state shifts (i.e., wetter, more herbaceous systems) and loss of forest...

USFS -3 weeks ago

Evaluating Adaptive Management Options for Black Ash Forests in the Face of Emerald Ash Borer Invasion

The arrival and spread of emerald ash borer (EAB) across the western Great Lakes region has shifted considerable focus towards developing silvicultural strategies that minimize the impacts of this invasive insect on the structure and functioning of black ash (Fraxinus nigra) wetlands. Early experience with clearcutting in these forests highlighted the risks of losing ash to EAB from these ecosyste...

USFS -3 weeks ago

Breeding waterbirds of the Mexican portion of the Colorado River delta [Chapter 10]

Once a mighty and wild river with abundant wetlands, the section of the Colorado River flowing through Mexico has become a trickle ... whenever it flows. Most of the time since the 1960s, until recently, it did not and was completely dry. This brought tremendous changes in the "original" constitution and biological processes of the region, although they have not been fully investigated....

USFS -4 weeks ago

Long term amphibian monitoring at wetlands lacks power to detect population trends

Amphibians are declining worldwide due to habitat destruction, disease, and environmental stressors. Extremely variable breeding populations and a paucity of long-term monitoring data limits rigorous testing of amphibian population trends, or bias associated with sampling regimes. We used 24 years of continuous trapping data to compare annual probability of presence, and population trends and stat...

timberbiz -1 month ago

Kauri exports swamped by Supreme Court decision

New Zealand’s Supreme Court has ruled it is unlawful to export slabs of kauri as tabletops. For years, the Ministry for Primary Industries has allowed the controversial exports, maintaining they met the definition of finished or manufactured objects set out in the Forests Act. Source: Radio New Zealand The Northland Environmental Protection Society (NEPS) has challenged that view in the Hi...