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Articles 1 - 16 of 16

Full-Text Articles in Forest Sciences

Dna Barcoding Of Quercus Falcata, Quercus Palustris, Quercus Rubra, And Their Hybrids Using Rbcl, Matk, And Ycf1, Mckinzie Johnson, Tim Trott Dec 2017

Dna Barcoding Of Quercus Falcata, Quercus Palustris, Quercus Rubra, And Their Hybrids Using Rbcl, Matk, And Ycf1, Mckinzie Johnson, Tim Trott

Research in Biology

No abstract provided.


Oystershell Scale Impacts And Mitigation Options On The Kaibab And Coconino Nf’S, Amanda M. Grady Dec 2017

Oystershell Scale Impacts And Mitigation Options On The Kaibab And Coconino Nf’S, Amanda M. Grady

Aspen Bibliography

This report documents a site visit to evaluate aspen stands experiencing oystershell scale damage on the Kaibab and Coconino National Forest’s. The site visit was requested by Kaibab NF, foresters including; Josh Giles, Jessi Outzs, Michael Sedgeman, Woody Rokala and Coconino Silviculturist, Mark Nabel. On November 19, 2016, Amanda Grady accompanied the individuals listed above, to evaluate stand conditions within three aspen exclosures. Two were located on the Williams Ranger District, Kaibab NF in the vicinity of Spring Valley. The third exclosure was located on the Flagstaff RD, Coconino NF and accessed from HWY 89-A via the Pump House Wash …


Species Delimitation And Lineage Separation History Of A Species Complex Of Aspens In China, Honglei Zheng, Liqiang Fan, Richard I. Milne, Lei Zhang, Yaling Wang, Kangshan Mao Mar 2017

Species Delimitation And Lineage Separation History Of A Species Complex Of Aspens In China, Honglei Zheng, Liqiang Fan, Richard I. Milne, Lei Zhang, Yaling Wang, Kangshan Mao

Aspen Bibliography

Species delimitation in tree species is notoriously challenging due to shared polymorphisms among species. An integrative survey that considers multiple operational criteria is a possible solution, and we aimed to test it in a species complex of aspens in China. Genetic [four chloroplast DNA (cpDNA) fragments and 14 nuclear microsatellite loci (nSSR)] and morphological variations were collected for 76 populations and 53 populations, respectively, covering the major geographic distribution of the Populus davidiana-rotundifoliacomplex. Bayesian clustering, analysis of molecular variance (AMOVA), Principle Coordinate Analysis (PCoA), ecological niche modeling (ENM), and gene flow (migrants per generation), were employed to …


Restoration Of The Iconic Pando Aspen Clone: Emerging Evidence Of Recovery, Paul C. Rogers, Jody A. Gale Jan 2017

Restoration Of The Iconic Pando Aspen Clone: Emerging Evidence Of Recovery, Paul C. Rogers, Jody A. Gale

Aspen Bibliography

Quaking aspen (Populus tremuloides Michx.) is being stressed across the America West from a variety of sources including drought, herbivory, fire suppression, development, and past management practices. Rich assemblages of plants and animals that utilize aspen forests, as well as economic values of tourism, grazing, hunting, and water conservation, make aspen ecosystems among the most valuable vegetation types in this region. The 43-ha Pando clone near Fish Lake, Utah, is an iconic example of an aspen community undergoing rapid decline due to overstory mortality and chronic recruitment failure. As part of a larger project to restore Pando, we fenced, …


Genotypic Variability In Populus Tremula L. Affects How Anthropogenic Nitrogen Enrichment Influences Litter Decomposition, Franziska Bandau, Benedicte Riber Albrectsen, Riitta Julkunen-Tiitto, Michael J. Gundale Jan 2017

Genotypic Variability In Populus Tremula L. Affects How Anthropogenic Nitrogen Enrichment Influences Litter Decomposition, Franziska Bandau, Benedicte Riber Albrectsen, Riitta Julkunen-Tiitto, Michael J. Gundale

Aspen Bibliography

No abstract provided.


Maintaining Ecosystem Resilience: Functional Responses Of Tree Cavity Nesters To Logging In Temperate Forests Of The Americas, Jose Tomas Ibarra, Michaela Martin, Kristina L. Cockle, Kathy Martin Jan 2017

Maintaining Ecosystem Resilience: Functional Responses Of Tree Cavity Nesters To Logging In Temperate Forests Of The Americas, Jose Tomas Ibarra, Michaela Martin, Kristina L. Cockle, Kathy Martin

Aspen Bibliography

Logging often reduces taxonomic diversity in forest communities, but little is known about how this biodiversity loss affects the resilience of ecosystem functions. We examined how partial logging and clearcutting of temperate forests influenced functional diversity of birds that nest in tree cavities. We used point-counts in a before-after-control-impact design to examine the effects of logging on the value, range, and density of functional traits in bird communities in Canada (21 species) and Chile (16 species). Clearcutting, but not partial logging, reduced diversity in both systems. The effect was much more pronounced in Chile, where logging operations removed critical nesting …


Climatic Sensitivity Of A Mixed Forest Association Of White Spruce And Trembling Aspen At Their Southern Range Limit, Sophan Chhin, G. Geoff Wang Jan 2017

Climatic Sensitivity Of A Mixed Forest Association Of White Spruce And Trembling Aspen At Their Southern Range Limit, Sophan Chhin, G. Geoff Wang

Aspen Bibliography

No abstract provided.


Characterization Of Genic Microsatellite Markers (Est-Ssrs) In The Endangered Oak Species Quercus Georgiana M.A.Curtis, Priyanka Dipak Kadav Jan 2017

Characterization Of Genic Microsatellite Markers (Est-Ssrs) In The Endangered Oak Species Quercus Georgiana M.A.Curtis, Priyanka Dipak Kadav

Dissertations, Master's Theses and Master's Reports

Quercus is important ecologically and economically because it provides food and habitat for wildlife, wood and paper products for humans. Oaks are endangered due to various factors like shifting climates, habitat loss, drought, pathogens and genetic swamping. Quercus georgiana (M.A. Curtis) is an endangered and restricted oak species which is remaining only in the southeastern part of the US. Efforts are required to conserve this endangered species from extinction. Conservation of this species can be done through these methods: ex-situ conservation (arboretum and botanical garden) and in-situ conservation strategies which protect the species in its natural habitat. For this conservation …


Development Of Gene-Based Microsatellite Markers In Acer Saccharum Marsh., Monica Harmon Jan 2017

Development Of Gene-Based Microsatellite Markers In Acer Saccharum Marsh., Monica Harmon

Dissertations, Master's Theses and Master's Reports

Sugar maple (Acer saccharum Marsh) is an important ecological and economic resource. Despite its significance, there are few molecular genetic resources available to date. This study used previously developed EST libraries generated for sugar maple and other hardwood species to develop and characterize EST-SSRs in sugar maple and test their transferability to other Acer species. Out of 58 markers tested, 22 showed amplification in the expected size range. From these, 16 polymorphic markers were selected to test transferability and 13 of these showed amplification in at least one other Acer species.


Guide To Quaking Aspen Ecology And Management With Emphasis On Bureau Of Land Management Lands In The Western United States, Paul C. Rogers Jan 2017

Guide To Quaking Aspen Ecology And Management With Emphasis On Bureau Of Land Management Lands In The Western United States, Paul C. Rogers

Aspen Bibliography

No abstract provided.


Influence Of Mature Overstory Trees On Adjacent 12-Year Regeneration And The Woody Understory: Aggregated Retention Versus Intact Forest, Miranda T. Curzon, Susan C. Baker, Christel C. Kern, Brian J. Palik, Anthony W. D'Amato Jan 2017

Influence Of Mature Overstory Trees On Adjacent 12-Year Regeneration And The Woody Understory: Aggregated Retention Versus Intact Forest, Miranda T. Curzon, Susan C. Baker, Christel C. Kern, Brian J. Palik, Anthony W. D'Amato

Aspen Bibliography

No abstract provided.


Can Carbon Fluxes Explain Differences In Soil Organic Carbon Storage Under Aspen And Conifer Forest Overstories?, Antra Boca, Helga Van Miegroet Jan 2017

Can Carbon Fluxes Explain Differences In Soil Organic Carbon Storage Under Aspen And Conifer Forest Overstories?, Antra Boca, Helga Van Miegroet

Aspen Bibliography

No abstract provided.


Aspen Health On National Forests In The Northern Rocky Mountain Region, James T. Blodgett, Kurt K. Allen, Kendra Schotzko, Al Dymerski Jan 2017

Aspen Health On National Forests In The Northern Rocky Mountain Region, James T. Blodgett, Kurt K. Allen, Kendra Schotzko, Al Dymerski

Aspen Bibliography

No abstract provided.


Post-Glacial Biogeography Of Trembling Aspen Inferred From Habitat Models And Genetic Variance In Quantitative Traits, Chen Ding, Stefan G. Schreiber, David R. Roberts, Andreas Hamann, Jean S. Brouard Jan 2017

Post-Glacial Biogeography Of Trembling Aspen Inferred From Habitat Models And Genetic Variance In Quantitative Traits, Chen Ding, Stefan G. Schreiber, David R. Roberts, Andreas Hamann, Jean S. Brouard

Aspen Bibliography

No abstract provided.


Quaking Aspen In The Northern Rockies Retention And Restoration, Camille Stevens-Rumann, Penelope Morgan, Eva Strand, Diane Abendroth Jan 2017

Quaking Aspen In The Northern Rockies Retention And Restoration, Camille Stevens-Rumann, Penelope Morgan, Eva Strand, Diane Abendroth

Aspen Bibliography

No abstract provided.


Assessment Of Aspen Ecosystem Vulnerability To Climate Change For The Uinta-Wasatch- Cache And Ashley National Forests, Utah, Janine Rice, Tim Bardsley, Pete Gomben, Dustin Bambrough, Stacey Weems, Allen Huber, Linda A. Joyce Jan 2017

Assessment Of Aspen Ecosystem Vulnerability To Climate Change For The Uinta-Wasatch- Cache And Ashley National Forests, Utah, Janine Rice, Tim Bardsley, Pete Gomben, Dustin Bambrough, Stacey Weems, Allen Huber, Linda A. Joyce

Aspen Bibliography

No abstract provided.