Pacific island forests: successionally impoverished and now threatened to...

Pacific Science;  July 1, 2008 ;   Mueller-Dombois, Dieter;   787 words ......secondary successional tree species. After canopy disturbances, the same indigenous tree species seem to resume dominance...succession. Primary forest tree species are mostly colonizer...between primary and secondary forests in the continental tropics. ...

BIOMASS, CARBON, AND NUTRIENT DYNAMICS OF SECONDARY FORESTS IN A HUMID...

Ecology;  September 1, 1999 ;   Hughes, R. Flint Kauffman, J. Boone Jaramillo, Victor J.;   787 words ...INTRODUCTION Secondary forests are rapidly becoming a common...approximately]9 x [10.sup.6] ha of secondary forests are formed annually within...and Tucker 1993). In general, secondary forests have rapid rates of aboveground...

A Vegetation Map for the Catskill Park, NY, Derived from Multi-temporal...

Northeastern Naturalist;  January 1, 2004 ;   Driese, Kenneth L; Reiners, William A; Lovett, Gary M; Simkin, Samuel M;   787 words ......emphasizes forest types defined by dominant tree species and depicts 24 vegetation classes. Mapping...Ollinger et al. 1993). The distribution of tree species and the interaction of vegetation and...soil have been shown to be related to tree species composition at the plot scale ...

The fall line: a physiographic-forest vegetation boundary.

The Geographical Review;  October 1, 2007 ;   Shankman, David Hart, Justin L.;   787 words ......These include some of the most common tree species in the region, such as post oak (Quercus...Liquidambar styraciflua), among others. Many tree species have ranges that extend from the lower...are ideal for the growth of deciduous tree species. Rainfall associated with cyclonic ...

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 ;   Kindu, M; Glatzel, G; Tadesse, Y; Yosef, A;   787 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...

Special trees help clear Guangzhou's air

China Daily;  July 14, 2007 ;   Qiu Quanlin;   266 words ......working in this southern city to develop tree species that could make a major contribution...areas. Zhang said that although most tree species had suffered stunted growth as a result...into the largest pollution-resistant tree species research center of its kind in the nation...

Lodgepole pine (Pinus contorta) ecotones in Rocky Mountain National Park,...

Ecology;  March 1, 1997 ;   Stohlgren, Thomas J. Bachand, Richard R.;   787 words ......establishment, growth, and persistence of a tree species under competition with other tree species. Canonical correspondence analysis (CCA...changes in the distribution and dominance of tree species, ecotones are a reasonable place to start...

ENVIRONMENT-BRAZIL: BRAZIL'S NORTHEAST ATLANTIC FOREST AT RISK

Inter Press Service English News Wire;  March 2, 2000 ;   STAFF;   787 words ......researchers estimate that about one-third of tree species will shortly become extinct in the biologically...dispersal -- continue, about 34 percent of tree species will become extinct in the region, warn...the study. Besides directly impacting tree species, this loss of habitat also ...

Metabolic Response of Native Southeastern Plants to Trichloroethylene

Soil & Sediment Contamination;  January 1, 2004 ;   Strycharz, Sarah; Newman, Lee; Coleman, Mark;   304 words ......performed using fast-growing tree species that maintain a high water demand...thus a high uptake rate for TCE. Tree species with these characteristics make...phytoremediation. By screening native tree species for the ability to take up and...

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...

POST-DISTURBANCE ABOVEGROUND BIOMASS ACCUMULATION IN GLOBAL SECONDARY...

Ecology;  May 1, 2000 ;   JOHNSON, CHRISTINE M. ZARIN, DANIEL J. JOHNSON, ARTHUR H.;   787 words ......biomass accumulation (ABA) in global secondary forests following stand-clearing disturbances...influencing ABA in most post-disturbance secondary forests. Key words: biomass accumulation...studies; climate; plant productivity; secondary forests; soil texture. INTRODUCTION In forest...

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 ;   Linus Gregoriadis;   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...