Navigation Links
Loss of eastern hemlock will affect forest water use
Date:5/9/2013

The loss of eastern hemlock from forests in the Southern Appalachian region of the United States could permanently change the area's hydrologic cycle, reports a new study by U.S. Forest Service scientists at the Coweeta Hydrologic Laboratory (Coweeta) located in Otto, North Carolina, published online in the journal Ecological Applications and available now in preprint format.

"The hemlock woolly adelgid, an exotic invasive insect, has caused widespread hemlock mortality," says Steven Brantley, a post-doctoral researcher at Coweeta and lead author of the paper. "Hemlock decline is expected to have a major impact on forest processes, including transpiration."

Transpiration describes the loss of water from plant leaves or needles. Coweeta researchers estimated changes in transpiration at the forest-level since hemlock woolly adelgid infestation by monitoring tree water use and changes in forest composition from 2004 to 2011.

The four studied stands were once dominated by eastern hemlock trees, and are located in the Coweeta watersheds. Because of its dense evergreen foliage and dominance in riparian and cove habitats, eastern hemlock plays an important role in the area's water cycle, regulating stream flow year round.

The loss of hemlock from southern Appalachian forests can be compared to the loss of American chestnut from eastern forests, which became functionally extinct after the introduction of an exotic fungus in the early 20th century. Changes in local forest hydrology from the loss of eastern hemlock will largely depend on which species replace it.

Rhododendron, a woody evergreen shrub common in southern Appalachian forests, is one of the species replacing eastern hemlock trees. Although rhododendron is evergreen, it has lower leaf area than hemlock, and thus transpiration in rhododendron-dominated forest stands is lower than in previously-healthy hemlock forests. Most of the other species replacing
'/>"/>

Contact: Steven Brantley
sbrantle@umn.edu
828-524-2128 x116
USDA Forest Service ‑ Southern Research Station
Source:Eurekalert

Page: 1 2

Related biology news :

1. Oceanographer Sylvia Earle kicks off Northeasterns Sustaining Coastal Cities Conference
2. Sustaining Coastal Cities Conference at Northeastern University
3. Warmest spring on record causes earliest flowering ever observed in eastern U.S.
4. In the Eastern US, spring flowers keep pace with warming climate
5. University of Tennessee study predicts extreme climate in Eastern US
6. Darwin discovered to be right: Eastern Pacific barrier is virtually impassable by coral species
7. Syracuse University study finds autumn advantage for invasive plants in eastern United States
8. Death of hemlock trees yields new life for hardwood trees, but at what cost to the ecosystem?
9. Organic vapors affect clouds leading to previously unidentified climate cooling
10. Pesticide combination affects bees ability to learn
11. NSF grant boosts research on proteins that affect fertility
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/23/2014)... songbirds are disappearing, and though conservationists are examining several ... acid rain and light pollution, a key piece of ... go once they leave their breeding sites, and what ... To answer this question, a team of researchers out ... connectivity map produced for a songbird, using tracking from ...
(Date:7/23/2014)... DC -- The planet,s soil releases about 60 billion ... is far more than that released by burning fossil ... This enormous release of carbon is balanced by carbon ... other plant matter, as well as by the underground ... have documented that rising temperatures increase the rate of ...
(Date:7/23/2014)... in personalized cancer medicine, (the WIN consortium), recently announced ... Jefferson University will be one of its six ... group in the Tri-State Area. The goal of WIN ... to the patient by forging collaborations between partners in ... the WIN consortium means Jefferson cancer patients will have ...
Breaking Biology News(10 mins):York University researchers use bird 'backpacks' to put wood thrushes migration on the map 2Climate change and the soil 2New partnership brings more personalized cancer treatment to Philadelphia 2
... leave the pediatrician,s office if your child has strep ... treatment. A novel application for applying DNA "nanobarcodes" ... and more accurately determine what,s causing a patient,s acute ... R. Hartman, a Cornell University PhD candidate in Biological ...
... generation sequencing (NGS) and Genomatix Software GmbH, a leading ... data, announce their decision to combine their expertise and ... genome analysis and re-sequencing project services. "We are ... high level of expertise in understanding and interpretation of ...
... New Queen,s University research has shown that the growth of melanoma, ... slowed when a little known gene called MicroRNA 193b is added. ... miR-193b when he discovered that it was deficient in melanoma tumors ... The miRNA-193b gene is found in people,s DNA and was unknown ...
Cached Biology News:Instant testing for sore throats wins CIMIT prize 2Instant testing for sore throats wins CIMIT prize 3Instant testing for sore throats wins CIMIT prize 4
(Date:7/23/2014)... July 23, 2014 DuPont Pioneer announced ... as vice president of Agricultural Biotechnology (ABT), effective July ... he served most recently as president, chief executive officer ... business leadership in the seed and crop protection industry ... Paul E. Schickler , president of DuPont Pioneer. “I ...
(Date:7/23/2014)... , July 23, 2014  Sofinnova Ventures, a ... announced the closing of Sofinnova Venture Partners IX, L.P. ... excess of the initial fund target of $425 million. ... successful biotechnology companies. Consistent with recent funds, SVP IX ... stage clinical programs, along with select investments in earlier ...
(Date:7/23/2014)... Adult stem cells that are required ... not magical. However, many current regenerative medicine ... if they were magical. , Many current clinical ... “stem cell tourism,” are evaluating heterologous tissue stem ... regenerative medicine therapies. In reality, these are not ...
(Date:7/22/2014)... of Standards and Technology (NIST) and California Institute ... for an atomic clock that is based on ... The microcomb clock, featured on the cover of ... Optica ,* is the first demonstration of all-optical ... of optical frequencies to lower microwave frequencies. (Optical ...
Breaking Biology Technology:DuPont Pioneer Names Neal Gutterson to Lead Agricultural Biotechnology 2DuPont Pioneer Names Neal Gutterson to Lead Agricultural Biotechnology 3Sofinnova Raises $500 Million Biotech Venture Fund 2The Adult Stem Cell Technology Center, LLC Continues to Develop Technologies for Homologous Adult Stem Cell Therapies and Drug Development 2The Adult Stem Cell Technology Center, LLC Continues to Develop Technologies for Homologous Adult Stem Cell Therapies and Drug Development 3The Adult Stem Cell Technology Center, LLC Continues to Develop Technologies for Homologous Adult Stem Cell Therapies and Drug Development 4The Adult Stem Cell Technology Center, LLC Continues to Develop Technologies for Homologous Adult Stem Cell Therapies and Drug Development 5'Comb on a chip' powers new NIST/Caltech atomic clock design 2
... decision last week to merge its Imaging and Printing Group ... Systems Group (IPSG) is a major milestone in HPs journey ... combining these two units, HP has a unified and convincing ... may be the key that turns HPs consumer message into ...
... researchers will show off developments in games that offer real-world ... ,The Academic Advanced Distributed Learning Co-Laboratory , WTN and ... how Games are Shaping Business and Learning, which will center ... applied to the workforce. , ,The video game industry has ...
... Business is booming again at the University of Wisconsin-Madisons ... job-seekers. , ,This is the best hiring situation weve seen ... associate director of ECS . Fall 2004 recruiting was ... are expected to attend Career Connection, the colleges spring job ...
Cached Biology Technology:HP charges toward the living room 2HP charges toward the living room 3Businesses and educators to preview video games for training 2Businesses and educators to preview video games for training 3Companies recruiting more UW engineering students 2Companies recruiting more UW engineering students 3Companies recruiting more UW engineering students 4
Schneider's Drosophila - Insect medium...
... includes protein separation by two-dimensional electrophoresis ... software package from Bio-Rad and protein ... order to meet customers requirements regarding ... and format of the results permanent ...
... Dual-Binary Analytical System more than doubles the ... LC/MS. The fast analysis cycles of the ... to 100% in tandem mode. Difficult separations ... Using backflush or heartcut configurations, on-line sample ...
... a molecular weight of 16 kDa. Leptin is ... by adipocytes [1,2]. Leptin is thought to play ... [1-3]. In the human, leptin levels are elevated ... A relationship between serum leptin levels and several ...
Biology Products: