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School of Forestry & Wildlife Sciences: Recent submissions

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Translocation to a fragmented landscape: survival, movement, and site fidelity of Northern Bobwhites 

Terhune, Theron M.; Sisson, D. Clay; Palmer, William E.; Faircloth; Stribling, H. Lee; Carroll, John P. (2021-05-05)
Habitat fragmentation, degradation, and loss have taxed early-successional species including the Northern Bobwhite (Colinus virginianus) and numerous grassland obligate birds. Translocation is often applied to counteract ...

Tuning stochastic matrix models with hydrologic data to predict the population dynamics of a riverine fish 

Sakaris, Peter; Irwin, Elise R. (2021-05-05)
We developed stochastic matrix models to evaluate the effects of hydrologicalteration and variable mortality on the population dynamics of a lotic fish in a regulated riversystem. Models were applied to a representative ...

Microsatellite and mating type markers reveal unexpected patterns of genetic diversity in the pine root‐infecting fungus Grosmannia alacris 

Duong, Tuan A.; De Beer, Z. Wilhelm; Wingfield, Brenda D.; Eckhardt, Lori G.; Wingfield, Michael J.; 0000-0002-3270-8199 (2021-03-22)
Grosmannia alacris is a fungus commonly associated with root‐infesting bark beetles occurring on Pinus spp. The fungus has been recorded in South Africa, the USA, France, Portugal and Spain and importantly, has been ...

Wild Pigs: inciting factor in southern pine decline? 

Eckhardt, Lori G.; Menard, Roger D.; Ditchkoff, Stephen S. (2021-03-22)
During an investigation into southern pine decline at Fort Benning Georgia, the possibility of wild pigs (Sus scrofa) as an inciting factor became evident. Their rooting activity caused significant root damage on sites ...

Is natural defense capacity correlated with allocation of dry mass to the stem in loblolly pine? 

Sayer, Mary Anne S.; Tyree, Michael C.; Blazier, Michael A.; Sun, Shi-Jean S.; Eckhardt, Lori G.; 0000-0002-3270-8199 (2020-06-09)
In addition to selecting loblolly pine (Pinus taeda L.) genotypes for superior growth, the concept of customized genetic selection may apply where tree vigor is threatened by insects and disease. A study conducted with ...

Global Pyrogenic Carbon Production During Recent Decades Has Created the Potential for a Large, Long-Term Sink of Atmospheric CO2 

Wei, Xinyuan; Hayes, Daniel J.; Fraver, Shawn; Chen, Guangsheng; 0000-0001-6544-5287 (2020-05-26)
Fires play an important role in the terrestrial biosphere carbon cycle, not only through direct carbon release but also contributing to a potential long-term storage as pyrogenic carbon (PyC). PyC is formed through fires, ...

Screening Pinus taeda (loblolly pine) families for physical and mechanical properties using vibrational spectroscopy 

Acquah, Gifty E.; Via, Brian K.; Eckhardt, Lori G.; 0000-0003-4269-0903 (2020-05-26)
In a bid to control the loblolly pine decline complex, stakeholders are using the selection and deployment of genetically superior families that are disease tolerant. It is vital that we do not compromise other important ...

Identifying Plant Part Composition of Forest Logging Residue Using Infrared Spectral Data and Linear Discriminant Analysis 

Acquah, Gifty E.; Via, Brian K.; Billor, Nedret; Fasina, Oladiran O.; Eckhardt, Lori G.; 0000-0003-4269-0903 (2020-05-26)
As new markets, technologies and economies evolve in the low carbon bioeconomy, forest logging residue, a largely untapped renewable resource will play a vital role. The feedstock can however be variable depending on plant ...

Vegetation Functional Properties Determine Uncertainty of Simulated Ecosystem Productivity: A Traceability Analysis in the East Asian Monsoon Region 

Cui, Erqian; Huang, Kun; Arain, Muhammad Altaf; Fisher, Joshua B.; Huntzinger, Deborah N.; Ito, Akihiko; Luo, Yiqi; Jain, Atul K.; Mao, Jiafu; Michalak, Anna M.; Niu, Shuli; Parazoo, Nicholas C.; Peng, Changhui; Peng, Shushi; Poulter, Benjamin; Ricciuto, Daniel M.; Schaefer, Kevin M.; Schwalm, Christoper R.; Shi, Xiaoying; Tian, Hanqin; Wang, Weile; Wang, Jinsong; Wei, Yaxing; Yan, Enrong; Yan, Liming; Zeng, Ning; Zhu, Qiuan; Xia, Jianyang; 0000-0002-1806-4091 (2020-04-02)
Global and regional projections of climate change by Earth system models are limited by their uncertain estimates of terrestrial ecosystem productivity. At the middle to low latitudes, the East Asian monsoon region has ...

Century-long increasing trend and variability of dissolved organic carbon export from the Mississippi River basin driven by natural and anthropogenic forcing 

Ren, Wei; Tian, Hanqin; Cai, Wei-Jun; Lohrenz, Steven E.; Hopkinson, Charles S; Huang, Wei-Jen; Yang, Jia; Tao, Bo; Pan, Shufen; He, Ruoying; 0000-0002-1806-4091; 0000-0001-7920-1427 (2020-04-02)
There has been considerable debate as to how natural forcing and anthropogenic activities alter the timing and magnitude of the delivery of dissolved organic carbon (DOC) to the coastal ocean, which has ramifications for ...

Methane emissions from global rice fields: Magnitude, spatiotemporal patterns, and environmental controls 

Zhang, Bowen; Tian, Hanqin; Ren, Wei; Tao, Bo; Lu, Chaoqun; Yang, Jia; Banger, Kamaljit; Pan, Shufen; 0000-0002-1806-4091; 0000-0001-7920-1427 (2020-04-02)
Given the importance of the potential positive feedback between methane (CH4) emissions and climate change, it is critical to accurately estimate the magnitude and spatiotemporal patterns of CH4 emissions from global rice ...

Rapid Quantitative Analysis of Forest Biomass Using Fourier Transform Infrared Spectroscopy and Partial Least Squares Regression 

Acquah, Gifty E.; Via, Brian K.; Fasina, Oladiran O.; Eckhardt, Lori G.; 0000-0003-4269-0903; 0000-0003-2676-7376; 0000-0002-3270-8199 (2020-04-02)
Fourier transform infrared reflectance (FTIR) spectroscopy has been used to predict properties of forest logging residue, a very heterogeneous feedstock material. Properties studied included the chemical composition, thermal ...

Global Nitrous Oxide Emissions From Pasturelands and Rangelands: Magnitude, Spatiotemporal Patterns, and Attribution 

Dangal, Shree R. S.; Tian, Hanqin; Xu, Rongting; Chang, Jinfeng; Canadell, Josep G.; Ciais, Philippe; Pan, Shufen; Yang, Jia; Zhang, Bowen; 0000-0002-1806-4091; 0000-0001-7920-1427 (2020-04-01)
The application of manure and mineral nitrogen (N) fertilizer, and livestock excreta deposition are the main drivers of nitrous oxide (N2O) emissions in agricultural systems. However, the magnitude and spatiotemporal ...

Long-term trends in evapotranspiration and runoff over the drainage basins of the Gulf of Mexico during 19012008 

Liu, Mingliang; Tian, Hanqin; Yang, Qichun; Yang, Jia; Song, Xia; Lohren, Steven E.; Cai, Wei-Jun; 0000-0002-1806-4091 (2020-04-01)
The Gulf of Mexico (GOM) is facing large pressures from environmental changes since the beginning of the last century. However, the magnitude and long-term trend of total water discharge to the GOM and the underlying ...

Increased light-use efficiency in northern terrestrial ecosystems indicated by CO2 and greening observations 

Thomas, Rebecca T.; Prentice, Lain Colin; Graven, Heather; Ciais, Philippe; Fisher, Joshua B; Hayes, Daniel J; Huang, Maoyi; Huntzinger, Deborah N.; Ito, Akihiko; Jain, Atul; Mao, Jiafu; Michalak, Anna M.; Peng, Shushi; Poulter, Benjamin; Ricciuto, Daniel M.; Shi, Xiaoying; Schwalm, Christopher; Tian, Hanqin; Zeng, Ning; 0000-0002-1806-4091 (2020-04-01)
Observations show an increasing amplitude in the seasonal cycle of CO2 (ASC) north of 45 degrees N of 56 +/- 9.8% over the last 50 years and an increase in vegetation greenness of 7.5-15% in high northern latitudes since ...

Simulated Summer Rainfall Variability Effects on Loblolly Pine (Pinus taeda) Seedling Physiology and Susceptibility to Root-Infecting Ophiostomatoid Fungi 

Chieppa, Jeff; Eckhardt, Lori G.; Chappelka, Arthur; 0000-0002-3270-8199; 0000-0001-9404-9638 (2020-04-01)
Seedlings from four families of loblolly pine (Pinus taeda L.) were grown in capped open-top chambers and exposed to three different weekly moisture regimes for 13 weeks. Moisture regimes varied in intensity and frequency ...

Chemometric modeling of thermogravimetric data for the compositional analysis of forest biomass 

Acquah, Gifty E.; Via, Brian K.; Fasina, Oladiran O.; Adhikari, Sushil; Billor, Nedret; Eckhardt, Lori G.; 0000-0003-4269-0903; 0000-0003-2676-7376; 0000-0003-4214-163X; 0000-0002-3270-8199 (2020-04-01)
The objective of this study was to investigated the use of chemometric modeling of thermogravimetric (TG) data as an alternative approach to estimate the chemical and proximate (i.e. volatile matter, fixed carbon and ash ...

Development of a REgion‐Specific Ecosystem Feedback Fire (RESFire) Model in the Community Earth System Model 

Zou, Yufei; Wang, Yuhang; Ke, Ziming; Tian, Hanqin; Yang, Jia; Liu, Yongqiang; 0000-0002-1806-4091 (2020-04-01)
Fires play a critical role in modulating regional and global climate through disturbances on meteorological, biogeochemical, and hydrological processes, while fires are strongly affected by climate, terrestrial ecosystems, ...

The Impact of Drought and Vascular-Inhabiting Pathogen Invasion in Pinus taeda Health 

Devkota, Pratima; Enebak, Scott A.; Eckhardt, Lori G.; 0000-0002-3270-8199 (2020-04-01)
The complex interaction of various biotic and abiotic factors may put the overall stand health of Pinus spp. at risk. A study was designed to determine the combined impact of drought and vascular-inhabiting fungi (Leptographium ...

Effects of elevated tropospheric ozone and fluctuating moisture supply on loblolly pine seedlings inoculated with root infecting ophiostomatoid fungi 

Chieppa, Jeff; Eckhardt, Lori G.; Chappelka, Art; 0000-0001-9404-9638; 0000-0002-3270-8199 (2020-04-01)
Southern Pine Decline is a cause of premature mortality of Pinus species in the Southeastern United States. While the pathogenicity of ophiostomatoid fungi, associated with declining Pinus species, has been observed both ...