Life Sciences Commons^™

Natural Regeneration Dynamics And Survival Influenced By Abiotic And Biotic Factors In A Bottomland Hardwood Forest, Lydia J. Voth Rurup

Electronic Theses and Dissertations

Riparian ecosystems are vital to the landscape, providing critical services including water filtration and purification, flood and erosion control, carbon sequestration, biodiversity support, and aesthetic value. Bottomland hardwood forests, however, are threatened by invasive species, land loss/conversion, inconsistent or absence of harvesting disturbances, and altered hydrological patterns, leading to reduced success of desired, native species. This research assessed regeneration dynamics and one-year survival in a seasonally-flooded bottomland hardwood forest at Boggy Slough Conservation Area in East Texas to identify abiotic and biotic factors important for successful establishment of native regeneration. Areas sampled included two that were previously treated with herbicide …

Prevalence Of Snake Fungal Disease Caused By Ophidiomyces Ophiodiicola In East Texas, Alan Lizarraga

Biology Theses

Fungal pathogens and resultant disease are credited with the decline of many species across all branches of the tree of life. Fungal diseases such as Snake Fungal Disease (SFD), primarily caused by the fungus Ophidiomyces ophiodiicola (Oo), have been strongly associated with the cause of the decrease/disappearance of many snake populations in North America. To date SFD in the wild has been described as far southwest as central Louisiana. Due to similar conditions and the proximity of East Texas to central Louisiana, a survey of local snake populations provided crucial information about the spread and presence of this emerging pathogen. …

Project Report No. 69, Observed Growth And Yield Of Loblolly And Slash Pine Plantations In East Texas, Dean W. Coble, Katherine Pendergast

Informal Project Reports

Forestland in East Texas is an estimated 12.1 million acres, with approximately 2.9 million acres (24%) classified as pine plantations on private land. Because pine plantations are typically managed for timber production, information regarding tree growth is needed to make informed management decisions. An understanding of how growth factors such as tree volume, diameter, height and basal area are affected by site index, trees per acre and age in East Texas enables plantation managers to make the management decisions necessary to maximize timber production.

Project Report No. 68, Observed Growth And Yield Of Loblolly Pine Plantations In East Texas, Dean W. Coble, Katherine Pendergast

Informal Project Reports

Forestland in east Texas occupies about 12.1 million acres with 2.9 million acres (24%) classified as pine plantations on private land. Pine plantations are typically managed to produce timber, so information is needed to make informed management decisions. Growth is one piece of information that managers often rely upon in their decision making process.

Etpprp Accomplishments - Fall 2012, The East Texas Pine Plantation Research Project, Arthur Temple College Of Forestry And Agriculture

Accomplishments and History

"The ETPPRP is a long-term comprehensive research program investigating the factors affecting the management of loblolly and slash pine plantations in East Texas. The Arthur Temple College of Forestry and Agriculture at Stephen F. Austin State University conducts the ETPPRP in coordination with private landowners, primarily Timber Investment Management Organizations (TIMOs) and Real Estate Investment Trusts (REITs)."

Project Report No. 67, A Whole-Stand Growth And Yield Model For Unmanaged Loblolly And Slash Pine Plantations In East Texas, Dean W. Coble, Micky G. Allen Ii, Jimmie L. Yeiser, I-Kuai Hung

Informal Project Reports

The amount of forestland in east Texas has been estimated at 11.8 million acres, with approximately 2.5 million acres classified as pine plantations. The majority of these plantations are owned by forest industry (71 percent), while non-industrial private forest landowners represent the next largest shareholder (23 percent). Pine plantations are typically managed to produce timber, so information is needed to make informed management decisions. Growth is one piece of information that managers often rely upon in their decision-making process.

The purpose of this paper is to develop an updated whole-stand growth and yield model for unmanaged loblolly and slash pine …

Diameter Distribution Models: Loblolly Pine Plantations, Dean W. Coble

Data

A parameter recovery procedure for the Weibull distribution function based on four percentile equations was used to develop a new diameter distribution yield prediction model for unmanaged slash pine (Pinus elliottii Engelm.) plantations in east Texas. This new model was similar in structure to the model of Lee and Coble (2006) in their work with east Texas loblolly pine plantations. The new model was compared to the diameter distribution model of Lenhart (1988), which was developed for slash pine plantations in east Texas, as well as to two other models developed using iterative techniques suggested and inspired by Cao (2004). …

Site Index Equations, Dean W. Coble

Data

A generalized sigmoid growth function was used in this study to model site index for unmanaged or low-intensity managed loblolly pine (Pinus taeda, L.) and slash pine (Pinus elliottii, Engelm.) plantations in east Texas.

Whole-Stand Models: Loblolly And Slash Pine Plantations, Dean W. Coble

Data

A new compatible whole-stand growth and yield model to predict total tree cubic-foot volume per acre yield (outside and inside-bark) was developed for unmanaged loblolly pine (Pinus taeda) and slash pine (Pinus elliottii) plantations in east Texas. This model was compared to the non- compatible whole-stand model of Lenhart (1996) and the Lenhart (1996) model refit to current data. For the two species, all three models were evaluated with independent observed data. The model developed in this study out-performed both Lenhart models in prediction of future yield and basal area per acre for all age classes combined and by five-year …

4th Lone Star Regional Native Plant Conference, David Creech, Greg Grant, James Kroll, Dawn Stover

Lone Star Regional Native Plant Conference

No abstract provided.

Etpprp Accomplishments - Fall 2007, The East Texas Pine Plantation Research Project, Arthur Temple College Of Forestry And Agriculture

Accomplishments and History

"The ETPPRP is a long-tenn comprehensive research program investigating the factors affecting the management of loblolly and slash pine plantations in East Texas. The Arthur Temple CoUege of Forestry and Agriculture at Stephen F. Austin State University conducts the ETPPRP in coordination with private landowners, primarily TIMOs and REITs."

Project Report No. 66, Metric Volume And Biomass Prediction Equations For Loblolly And Slash Pine Trees Planted In Unmanaged Pine Plantations In East Texas, Dean W. Coble, Young-Jin Lee, J. David Lenhart

Informal Project Reports

Metric equations are presented to predict the volume of wood and/or biomass contained in individual loblolly (Pinus taeda, L.) and slash (Pinus elliottii, Englem.) pine trees growing in unmanaged pine plantations in east Texas. Taper equations are also presented for both species that describe tree form in metric units.

Project Report No. 65, Stumpage Price Trends Of Sawtimber And Pulpwood In East Texas And Louisiana, Dean W. Coble, Shiaolin Cheng

Informal Project Reports

A fifteen-year stumpage price update and analysis for pine and hardwood in East Texas are reported. Thepricesofsawtimberandpulpwoodare presented for both pine and hardwood plantations by using 1988 to 2003 stumpage prices from the Texas Forest Service and Louisiana Department of Agriculture. Timber prices increased steadily from 1988 to the late 1990's, peaked, then declined into 2003 for both Louisiana and Texas. Louisiana prices, though, have remained higher than those for Texas.

Project Report No. 64, Observed Growth And Yield Of Loblolly And Slash Pine Plantations In East Texas, Dean W. Coble, Shiaolin Cheng

Informal Project Reports

The amount of forestland in east Texas has been estimated at 11.8 million acres, with approximately 2.5 million acres classified as pine plantations. The majority ofthese plantations are owned by forest industry (71 percent), while non-industrial private forest landowners represent the next largest shareholder (23 percent). Pine plantations are typically managed to produce timber, so information is needed to make informed management decisions. Growth is one piece of information that managers often rely upon in their decision-making process.

Fusiform Rust Trends In East Texas: 1969 To 2002, Dean W. Coble, Young-Jin Lee

Data

Fusiform rust ( Cronartium quercuum [Berk.] Miyabe ex Shirai f. sp. fusiforme) infection rates in East Texas increased to nearly 50 percent in slash pine (Pinus elliottii Engelm.) and about 15 percent in loblolly pine ( Pinus taeda L.) plantations during the 18-year period from 1969 to 1987. New data from the East Texas Pine Plantation Research Project showed that fusiform rust infection rates in slash pine stabilized around 20 - 30 percent after 1987, then decreased to about 15 percent by 2002. For loblolly pine, the rates stabilized around 10 percent after 1987, then decreased to around 5 percent …

1st Lone Star Regional Native Plant Conference, David Creech, Dawn Parish, Matt Welch

Lone Star Regional Native Plant Conference

No abstract provided.

Project Report No. 63, Site Index Equations For Loblolly And Slash Pine Plantations In East Texas, Update: Fall 2000, Lanton Chumley, Kenneth Dotson, Brad Horn, Greg Kelley, Greg Mabus, Meredith Middlebrook, Jamie Oliver, Michael Russell, Michelle Stegall

Informal Project Reports

This update utilizes height-age pairs measured from 1982- 1999. As a result, the number.of observations available for analysis is 1,900 loblolly and 852 slash. It is anticipated that the equations in this Fall 2000 update may quantify the productivity of East Texas loblolly and slash pine plantations in a more accurate and reliable manner than the eight previous sets of equations.

Project Report No. 62, Site Index Equations For Loblolly And Slash Pine Plantations In East Texas, Update: Fall 1998, Jermey Abston, Jason Bledsoe, Tyson Davis, Cody Duncan, Jason Guinn, Steven Hilton, Gwen Jones, Jennifer Jones, Jeff Kellam, Bryan Killburn, Denver Knox, William Muncrief, Jason Nelms, Chris Pool, Will Ramey, Keith Rice, Kevin Roberts, Curtis Stanford

Informal Project Reports

This update utilizes height-age pairs measured from 1982 - 1998. As a result, the number of observations available for analysis is 1,814 loblolly and 788 slash. It is anticipated that the equations in this Fall 1998 update may quantify the productivity of East Texas loblolly and slash pine plantations in a more accurate and reliable manner than the seven previous sets of equations.

Project Report No. 61, Observed Per-Acre Basal Area Growth Trends, 28 Individual Observations, Unthinned Loblolly Pine Plantations, Andrew M. Burrow

Informal Project Reports

Individual plot data from the East Texas Pine Plantation Research Project were available for analysis in this study. Each plot consists of two subplots. Each subplot is considered an observation. The analysis was limited to individual observations ages 24 years and older. All observations are unthinned.

Project Report No. 60, Observed Per-Acre Volume Growth Trends, 28 Individual Observations, Unthinned Loblolly Pine Plantations East Texas, Andrew M. Burrow

Informal Project Reports

Individual plot data from the East Texas Pine Plantation Research Project were available for analysis in this study. Each plot consists of two subplots. Each subplot is considered an observation. The analysis was limited to individual observations ages 24 years and older. All observations are unthinned.

For each observation, cubic feet total stem wood and bark per acre was calculated.

Based on these values, MAI (mean annual increment) was calculated.

The values (plus observed trees per acre) are depicted in graphs on the next 28 pages.

Project Report No. 59, Site Index Equations For Loblolly And Slash Pine Plantations In East Texas, Update: Fall 1997, Bryce Burke, Andy Burrow, Bob David, Jennifer Franke, John Hamilton, Jay Hein, Roger Hooper, Krissy Kimbro, Jeffrey Lester, Willie Newman, Doug Orms, Ann Pennell, Wiley Quarles, Joel Rudolph, Mike Sessions, Brandon White, Chris Wray

Informal Project Reports

Each published set of equations was developed from analyses of East Texas Pine Plantation Research Project (ETPPRP) data collected from the array of ETPPRP permanent research plots located throughout East Texas.

Project Report No. 57, Observed Growth Trends, Quadratic Mean Diameter, Loblolly And Slash Pine Plantations East Texas, J. David Lenhart, Jennifer Allen, Young-Jin Lee

Informal Project Reports

No abstract provided.

Project Report No. 56, Observed Growth Trends, Basal Area Per Acre In Square Feet, Loblolly And Slash Pine Plantations East Texas, J. David Lenhart, Jennifer Allen, Young-Jin Lee

Informal Project Reports

Observations fr9m the East Texas Pine Plantation Research Project were available for analysis in this study. We limdted the observations to site index classes 60. 70 and 80 feet. And age classes were set at three-year intervals.

Por each combination of site index and age class. an average observed basal area in square feet per acre was calculated.

Based on these values, HAl (mean annual increment) and CAl (current annual increment) were calculated.

The values are depicted in graphs on the next six pages.

Project Report No. 58, Observed Growth Trends, Average Total Height . . . Ten Tallest Trees, Loblolly And Slash Pine Plantations East Texas, J. David Lenhart, Jennifer Allen, Young-Jin Lee

Informal Project Reports

Observations from the East Texas Pine Plantation Research Project were available for analysis in this study. We limdted the observations to site index classes 60, 70 and 80 feet. And age classes were set at three-year intervals.

For each combination of site index and age class, an average observed total height of the ten tallest trees was calculated.

Based on these values, MAl (mean annual increment) and CAI (current annual increment) were calculated.

The values are depicted in graphs on the next six pages.

Project Report No. 54, Assessment Of Early Estimation Of Site Index, Loblolly Pine Plantations East Texas, J. David Lenhart, Jennifer Allen

Informal Project Reports

Observations from the Bast Texas Pine Plantation Research Project were available for analysis in this study.

In particular, observations are available that track the development of loblolly pine plantation parameters, such as age and height during 14, 15 and 16 year periods of time.

Fortunately. many of the tracks begin with initial measurements in plantations that were less than 5 years old.

These particular data were analyzed in this study. The results are depicted on the next 6 pages.

Project Report No. 53, Slash Pine Plantations In East Texas, Comparison Of Two Harvest Schedules . . ., J. David Lenhart, Jennifer Allen

Informal Project Reports

Pine report discussing and treating various topics within the discipline.

Project Report No. 51, Slash Pine Plantations In East Texas, Thinned And Unthinned - Total Wood Flow Comparison, A Simulation, J. David Lenhart, Jennifer Allen

Informal Project Reports

Report of a simulation model for the timing of thinning plantation management schedules.

Project Report No. 52, Location, Loblolly Pine, J. David Lenhart, Jennifer Allen

Informal Project Reports

Discussion of location in respect to the Loblolly Pine.

Project Report No. 50, Site Index Equations For Loblolly And Slash Pine Plantations In East Texas, Update: Fall 1996, Chris Bergt, Chris Edmonson, Jason Gibson, Robert Hactel, John Hamilton, Michael Hasagama, Justin Jordan, David Leary, Clif Motheral, Nathan Smith, Jason Wallace, Steven Wright

Informal Project Reports

Site index prediction equations for loblolly ( Pinus taeda L.) and slash ( Pinus elliottii Engelm. ) pine plantations in East Texas.

Research Report No. 24, Hyperstand 1.0: A Hypercard Computer Program For Estimating Yield Of East Texas Pine Plantations, Eric L. Taylor, A. Gordon Holley

Informal Project Reports

A computer program for estimating per ~e yield for lob lolly and slash pine plantations in East Texas is presented. The program, HYPERSTAND 1.0, is written in HYPERCA.RD and 1s designed to run on MACINTOSH computers. In order to run, HYPERSTAND requires the application program HYPERCA.RD l .2.