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J. Woodward, D. Goodstein (1996)
Biological invasions as global environmental changeAmerican Scientist, 84
P. Vitousek, H. Mooney, J. Lubchenco, J. Melillo (1997)
Human Domination of Earth’s EcosystemsRenewable Energy
M. Jenkins (2007)
Vegetation Communities of Great Smoky Mountains National Park, 6
(2004)
DR 2400 spectrophotometer procedure manual
(2003)
Effects of dispersal, shrubs, and density-dependent mortality on tree seed and seedling distributions
Dale Johnson, F. Bormann, G. Likens (1980)
Pattern and Process in a Forested EcosystemBioScience
E. Nilsen, B. Clinton, T. Lei, O. Miller, S. Semones, J. Walker (2001)
Does Rhododendron maximum L. (Ericaceae) Reduce the Availability of Resources Above and Belowground for Canopy Tree Seedlings?, 145
J. Jenkins, J. Aber, C. Canham (1999)
Hemlock woolly adelgid impacts on community structure and N cycling rates in eastern hemlock forestsCanadian Journal of Forest Research, 29
Zhi-jun Liu, D. Weller, D. Correll, T. Jordan (2000)
EFFECTS OF LAND COVER AND GEOLOGY ON STREAM CHEMISTRY IN WATERSHEDS OF CHESAPEAKE BAY 1JAWRA Journal of the American Water Resources Association, 36
(2003)
DR 2400 spectrophotometer procedure manual Effects of dispersal, shrubs, and density-dependent mortality on tree seed and seedling distributions
W. McNab (1989)
Terrain shape index: quantifying effect of minor landforms on tree heightForest Science, 35
R. Mack, D. Simberloff, W. Lonsdale, H. Evans, M. Clout, F. Bazzaz (2000)
BIOTIC INVASIONS: CAUSES, EPIDEMIOLOGY, GLOBAL CONSEQUENCES, AND CONTROLEcological Applications, 10
Anne Eschtruth, N. Cleavitt, J. Battles, R. Evans, T. Fahey (2006)
Vegetation dynamics in declining eastern hemlock stands: 9 years of forest response to hemlock woolly adelgid infestationCanadian Journal of Forest Research, 36
M. Dobbs, A. Parker (2004)
Evergreen Understory Dynamics in Coweeta Forest, North CarolinaPhysical Geography, 25
Gregory Lewis, G. Likens (2007)
Changes in stream chemistry associated with insect defoliation in a Pennsylvania hemlock-hardwoods forestForest Ecology and Management, 238
(2005)
Managing hemlock woolly adelgid and balsam woolly adelgid in Great Smoky Mountains
(2002)
An introduction to standards and quality control in the laboratory
May Cassar (2010)
Environmental Management
D. Orwig, R. Cobb, A. D’Amato, Matthew Kizlinski, D. Foster (2008)
Multi-year ecosystem response to hemlock woolly adelgid infestation in southern New England forestsCanadian Journal of Forest Research, 38
T. Burton, G. Likens (1973)
The Effect of Strip-Cutting on Stream Temperatures in the Hubbard Brook Experimental Forest, New HampshireBioScience, 23
D. Orwig, D. Foster (1998)
FOREST RESPONSE TO THE INTRODUCED HEMLOCK WOOLLY ADELGID IN SOUTHERN NEW ENGLAND, USAJournal of The Torrey Botanical Society, 125
D. Houston (1994)
Major New Tree Disease Epidemics: Beech Bark DiseaseAnnual Review of Phytopathology, 32
(1995)
Pathogens, and processes in forest ecosystems
(2003)
Impact of the balsam woolly adelgid (Adelges piceae Ratz.) on an Abies fraseri dominated stand near the summit of Mout LeCont, Tennessee
B. Clinton, J. Vose (1996)
Effects of Rhododendron maximum L. on Acer rubrum L. Seedling Establishment
Geological Survey (variously dated) National field manual for the collection of water-quality data
(1973)
Pattern and process in a forested ecosystem The effect of strip-cutting on stream temperatures in the Hubbard Brook experimental Forest
J. Castello, D. Leopold, P. Smallidge (1995)
Pathogens, Patterns, and Processes in Forest EcosystemsPathogens influence and are influenced by forest development and landscape characteristicsBioScience, 45
A. Ellison, M. Bank, B. Clinton, E. Colburn, K. Elliott, C. Ford, D. Foster, Brian Kloeppel, J. Knoepp, G. Lovett, J. Mohan, D. Orwig, N. Rodenhouse, W. Sobczak, K. Stinson, J. Stone, C. Swan, Jill Thompson, B. Holle, J. Webster (2005)
Loss of foundation species: consequences for the structure and dynamics of forested ecosystemsFrontiers in Ecology and the Environment, 3
C. Snyder, John Young, D. Lemarié, David Smith (2002)
Influence of eastern hemlock (Tsuga canadensis) forests on aquatic invertebrate assemblages in headwater streamsCanadian Journal of Fisheries and Aquatic Sciences, 59
J. Kincaid (2007)
Compositional and Environmental Characteristics of Tsuga Canadensis (L.) Carr. Forests in the Southern Appalachian Mountains, USA1, 134
Carolyn Mahan, Kristi Sullivan, B. Black, Ke Kim, R. Yahner (2004)
Overstory Tree Composition of Eastern Hemlock Stands Threatened by the Hemlock Woolly Adelgid at Delaware Water Gap National Recreation Area, 69
John Young, David Smith, C. Snyder, D. Lemarié (2002)
A Terrain-Based Paired-Site Sampling Design to Assess Biodiversity Losses from Eastern Hemlock DeclineEnvironmental Monitoring and Assessment, 76
(1991)
Sunfleck ceptometer operator's manual
D Roberts, S Cooper (1989)
Thirteenth international symposium on remote sensing of environment
T. Flum, S. Nodvin (1995)
Factors affecting streamwater chemistry in The Great Smoky Mountains, USAWater, Air, and Soil Pollution, 85
M. McClure (1991)
Density-dependent feedback and population cycles in Adelges tsugae (Homoptera : Adelgidae) on Tsuga canadensisEnvironmental Entomology, 20
(2004)
Overstory tree composition of hemlock stands threatened by the hemlock woolly adelgid at Delaware Water Gap National Recreation Area. Castanea
(1991)
Sunfleck ceptometer operator's manual. Decagon Services Inc Evergreen understory dynamics in Coweeta Forest
R. Ross, R. Bennett, C. Snyder, John Young, David Smith, D. Lemarié (2003)
Influence of eastern hemlock (Tsuga canadensis L.) on fish community structure and function in headwater streams of the Delaware River basinEcology of Freshwater Fish, 12
T. Lei, S. Semones, J. Walker, B. Clinton, E. Nilsen (2002)
Effects of Rhododendron maximum Thickets on Tree Seed Dispersal, Seedling Morphology, and SurvivorshipInternational Journal of Plant Sciences, 163
R. Hollingsworth, F. Hain (1991)
Balsam woolly adelgid (Homoptera: Adelgidae) and spruce-fir decline in the southern Appalachians: assessing pest relevance in a damaged ecosystemFlorida Entomologist, 74
S. Johnson, J. Jones (2000)
Stream temperature responses to forest harvest and debris flows in western Cascades, Oregon.Canadian Journal of Fisheries and Aquatic Sciences, 57
R. Romancier (1971)
Combining Fire and Chemicals For the Control of Rhododendron Thickets, 149
D. Vandermast, D. Lear (2002)
Riparian vegetation in the southern Appalachian mountains (USA) following chestnut blightForest Ecology and Management, 155
A. Strahler, C. Woodcock, T. Logan (1979)
Forest Classification and Inventory System using Landsat, digital terrain, and ground sample data
(2003)
Impact of the balsam woolly adelgid (Adelges piceae Ratz.) on an Abies fraseri dominated stand near the summit of Mout LeCont
R. Robinson, M. Wood, J. Smoot, S. Moore (2004)
Parametric modeling of water quality and sampling strategy in a high-altitude appalachian streamJournal of Hydrology, 287
J. Lambers, J. Clark (2003)
Effects of dispersal, shrubs, and density-dependent mortality on seed and seedling distributions in temperate forestsCanadian Journal of Forest Research, 33
(1956)
A spherical densiometer for estimating overstory density
D. Orwig, D. Foster, D. Mausel (2002)
Landscape patterns of hemlock decline in New England due to the introduced hemlock woolly adelgidJournal of Biogeography, 29
S. Anagnostakis (1987)
Chestnut blight: the classical problem of an introduced pathogenMycologia, 79
P. Lemmon (1956)
A Spherical Densiometer For Estimating Forest Overstory DensityForest Science, 2
M. Jenkins (2003)
Impact of the balsam woolly adelgid (Adelges piceae Ratz.) on an Abies fraseri (Pursh) Poir. dominated stand near the summit of Mount LeConte, Tennessee.Castanea, 68
Andrew Liebhold, W. Macdonald, D. Bergdahl, V. Mastro (1995)
Invasion by Exotic Forest Pests: A Threat to Forest EcosystemsForest Science, 41
R. Welch, M. Madden, T. Jordan (2002)
Photogrammetric and GIS techniques for the development of vegetation databases of mountainous areas: Great Smoky Mountains National ParkIsprs Journal of Photogrammetry and Remote Sensing, 57
A. Stage (1976)
An Expression for the Effect of Aspect, Slope, and Habitat Type on Tree GrowthForest Science, 22
K. Weathers, G. Lovett, G. Likens, R. Lathrop (2000)
THE EFFECT OF LANDSCAPE FEATURES ON DEPOSITION TO HUNTER MOUNTAIN, CATSKILL MOUNTAINS, NEW YORKEcological Applications, 10
(1956)
A spherical densiometer for estimating overstory density. Forest Science
(1967)
Undisturbed rhododendron thickets are not spreading
G. Likens, F. Bormann, N. Johnson, D. Fisher, R. Pierce (1970)
Effects of Forest Cutting and Herbicide Treatment on Nutrient Budgets in the Hubbard Brook Watershed-EcosystemEcological Monographs, 40
P. Townsend, K. Eshleman, C. Welcker (2004)
REMOTE SENSING OF GYPSY MOTH DEFOLIATION TO ASSESS VARIATIONS IN STREAM NITROGEN CONCENTRATIONSEcological Applications, 14
(1995)
Pathogens, and processes in forest ecosystems. Bioscience
(2005)
Managing hemlock woolly adelgid and balsam woolly adelgid in Great Smoky Mountains National Park
Hemlock Woolly Adelgid (Adelges tsugae) is spreading across forests in eastern North America, causing mortality of eastern hemlock (Tsuga canadensis [L.] Carr.) and Carolina hemlock (Tsuga caroliniana Engelm.). The loss of hemlock from riparian forests in Great Smoky Mountains National Park (GSMNP) may result in significant physical, chemical, and biological alterations to stream environments. To assess the influence of riparian hemlock stands on stream conditions and estimate possible impacts from hemlock loss in GSMNP, we paired hardwood- and hemlock-dominated streams to examine differences in water temperature, nitrate concentrations, pH, discharge, and available photosynthetic light. We used a Geographic Information System (GIS) to identify stream pairs that were similar in topography, geology, land use, and disturbance history in order to isolate forest type as a variable. Differences between hemlock- and hardwood-dominated streams could not be explained by dominant forest type alone as forest type yields no consistent signal on measured conditions of headwater streams in GSMNP. The variability in the results indicate that other landscape variables, such as the influence of understory Rhododendron species, may exert more control on stream conditions than canopy composition. The results of this study suggest that the replacement of hemlock overstory with hardwood species will have minimal impact on long-term stream conditions, however disturbance during the transition is likely to have significant impacts. Management of riparian forests undergoing hemlock decline should, therefore, focus on facilitating a faster transition to hardwood-dominated stands to minimize long-term effects on water quality.
Environmental Management – Springer Journals
Published: Jun 4, 2009
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