REPORT: 8,000 TREE SPECIES THREATENED

United Press International;  August 26, 1998 ;     325 words ......International 08-26-1998 Report: 8,000 tree species threatened GENEVA, Switzerland, Aug...conservation groups says more than 8, 000 tree species worldwide are in danger of extinction...world's estimated 80,000 to 100,000 tree species are at risk. No more than one in four...

TREE SPECIES SCREENED ON NITOSOLS OF CENTRAL ETHIOPIA: BIOMASS PRODUCTION,...

Journal of Tropical Forest Science;  July 1, 2006 ;     700+ words ......TADESSE, Y. & YOSEF, A. 2006. Tree species screened on Nitosols of Central...growing and high biomass producing tree species, evaluate foliage and wood macronutrient contents of different tree species, and assess effect of tree species...

DENR to plant native tree species in forest.(Provincial News)

Manila Bulletin;  April 29, 2007 ;     204 words ......producing seedlings of indigenous tree species which will be used in its reforestation...director, said that indigenous tree species are helpful in maintaining the ecological balance. The indigenous tree species being produced include calumpit...

Maple tree species is Asian longhorned beetle's favorite.

M2 Presswire;  February 4, 2004 ;     415 words ......PRESSWIRE-4 February 2004-US ARS: Maple tree species is Asian longhorned beetle's favorite...chemicals--called volatiles --of some tree species. Significantly, these trees may be used...Province, China. Like the beetle, the tree species is native to eastern China. Acting as...

10 Percent Tree Species on edge of Extinction

Xinhua English Newswire;  August 26, 1998 ;     243 words ......that 10 percent of the world's known tree species are facing extinction. The World Conservation...than 8,750 of the 80,000 to 100,000 tree species known were found to be threatened with...and will last 10 days. The threats to tree species include overuse of timber as fuel and...

One in ten of the world's tree species are facing extinction

The Independent - London;  August 26, 1998 ;     542 words ...TEN PER CENT of the world's tree species - including 11 types in the UK - are...750 of the world's 80,000 to 100,000 tree species are under threat. Almost 1,000 tree...said: "We have found that threats to tree species are increasing and that unless conservation...

247 tree species face extinction

The Hindustan Times;  December 14, 2007 ;     285 words ......Conservation Union (IUCN) has put 45 tree species across India on its "Red List of Threatened...endangered". Overall, it has flagged 247 tree species from the country as "threatened". The...widely talked about but hundreds of tree species are quietly slipping into extinction...

How environmental conditions affect canopy leaf-level photosynthesis in...

Ecology;  December 1, 1998 ;     700+ words ......adequately considered that different tree species can contribute differentially to carbon-cyc...significantly differ among co-existing tree species. In contrast to the extensive information...for mature individuals of most canopy tree species (e.g., Dougherty et al. 1979, Jurik...

EFFECTS OF AIR POLLUTION ON KEY TREE SPECIES OF THE CARPATHIAN MOUNTAINS

Ekológia;  July 1, 2008 ;     700+ words ......Spruce seems to be the most sensitive tree species to environmental stress in Carpathian...forests. Foliage surfaces of three forest tree species contained Al, Si, Ca, Fe, Mg, K, Cl...it is not physiologically usable for tree species. Key words: spruce, beech, fir, atmospheric...

Current and presettlement tree species composition of some upland forests...

Journal of the Torrey Botanical Society;  October 1, 2001 ;     700+ words ...Current and presettlement tree species composition of some upland forests in northern...MS, 38677-1848). Current and Presettlement Tree Species Composition of Some Upland Forests in Northern...studying each alone. In this study, I examined tree species composition of two mature (>150 ...

Hardwood forest composition in the undissected lower coastal plain in...

Journal of the Torrey Botanical Society;  October 1, 2001 ;     700+ words ......composition in the undissected lower Coastal Plain in Virginias CAZIER, P. W., AND S...composition in the undissected lower Coastal Plain in Virginia. J. Torrey Bot. Soc. 128...elevation uplands of the undissected Lower Coastal Plain of Virginia. Our stands differed from...

Up to half of tree species in danger ; Up to half the world's tree species...

Western Daily Press (Bristol UK);  September 29, 2008 ;     188 words ...Up to half the world's tree species could be under threat from climate change, conservationists have warned. Some 7,000 tree species, out of about 100,000 in the world, are on the international IUCN Red List of endangered species, according to...

7,000 tree species 'are under threat'

Western Morning News, The Plymouth (UK);  September 24, 2008 ;     151 words ...Up to half the world's tree species could be under threat from the impact of climate change, conservationists...endangered species. But experts believe around a quarter of tree species are already in danger, and climate change could reduce the...

Forest Communities of Natchez Trace State Forest, Western Tennessee...

Castanea;  March 1, 2004 ;     700+ words ......gradients in a Mississippi Embayment Coastal Plain forest, we classified sixty-one forest...Vegetation was a mix between typical Coastal Plain forests, with Ilex opaca common, and...Hardwood forests. INTRODUCTION The Coastal Plain of the southeastern United States is...

Life history differences and tree species coexistence in an old-growth New...

Ecology;  April 1, 1998 ;     700+ words ...INTRODUCTION Explanations of tree species coexistence in old-growth forests have...gap-understory performance trade-off among tree species in a neo-tropical rain forest. Similarly...from pure Nothofagus forests) contain tree species of widely disparate life-spans (Ogden...