Browsing by Author "Smeins, Fred"
Now showing items 1-20 of 28
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Application of NIRS fecal profiling and geostatistics to predict diet quality of African livestock Awuma, Kosi Semebia (Texas A&M University, 2005-02-17)Near infrared reflectance spectroscopy (NIRS) and geostatistical techniques were used to predict diet quality of sub-Saharan African (SSA) livestock, and to create cokriged estimated diet quality maps for cattle across a ...
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Pierce, Brian Leslie (2017-07-31)Wildlife management is essentially the balance between maintenance of habitat and control of population density. To demonstrate the application of multivariate techniques for habitat assessment, I evaluated 4 contemporary ...
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Stroman, Dianne A (2014-09-29)Perpetual conservation easements have become one the primary tools used for long-term land protection and are credited with helping protect endangered species, preventing habitat fragmentation, maintaining ecosystem functions ...
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Young, Amanda B. (2010-01-16)The main objectives of this investigation were to determine the impact of climate on mountain birch (Betula pubecens ssp. czerepanovii (Orlova)) growth and to develop a regional chronology of autumnal moth outbreaks. To ...
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Smallwood, Ashley Michelle (2012-10-19)This dissertation presents new data on Clovis site occupation, technological organization, and settlement in the American Southeast. Evidence suggests that traditionally-accepted, western-centric models do not fully explain ...
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Young, Shelby Lynn (2015-06-01)The spatial distributions of all plant species are controlled by their tolerances to a range of environmental conditions. However, growth patterns within the range of tolerance can vary considerably depending on the set ...
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Desertification of high latitude ecosystems: conceptual models, time-series analyses and experiments Thorsson, Johann (2009-05-15)Ecosystem degradation in Iceland has been severe since man arrived 1100 years ago. Birch woodlands cover has declined from 25% of the land area, to only 1%. The deforestation is considered to be the initial stage in the ...
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Mannel, Cheryl K. (2009-05-15)Woody encroachment upon grasslands is a global trend that is cause for concern. In the Lampasas Cut Plain of Texas, Ashe juniper is the dominant woody invasive species. Grassland restoration is dependent upon proper seedbed ...
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Al-Rabab'ah, Moh'd Ali (Texas A&M University, 2004-11-15)Pinus taeda L. dynamics, migration patterns and genetic structure were investigated over geological time scale (the past 21,000 years), historical time scale (the past 500 years) and recent time scale (the past 50 years ...
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Walters, Catherine (Texas A&M University, 2007-04-25)Using four AFLP markers and seven polymorphic microsatellite loci, we examined the genetic structure of the rare and endangered Spiranthes parksii Correll (Orchidaceae). Spiranthes parksii is not distinguishable from ...
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Juarez Berrios, Edwin Alfredo (Texas A&M University, 2005-02-17)Over the past 100150 years Texas rangelands have dramatically changed from native open savannahs to dense woodlands. On the Edwards plateau, a major management concern is the increasing encroachment of Ashe juniper ...
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Jones, Christine (2013-05-02)This dissertation explores patterns of health and variability among hunter-gatherers during the Holocene in two distinct ecological settings: the semi-arid Lower Pecos and Central Western Gulf Coastal Plain regions of ...
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Clifton, Kyle Leann (2018-08-08)Protected conservation areas are increasingly threatened as the need for land and resources grows. South Africa has a storied past of wildlife conservation and its protected areas continue to be popular nature tourism ...
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Pipkin, Ashley (2012-07-16)Fire suppression in the southern and central Appalachian Mountains has resulted in an alteration to vegetation structure and composition. For this research the dominant species, abundance, density and age structure of the ...
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Holloway, Rodney Leon (Texas A&M University. Libraries, )The present study is concerned with the role of photoperiod and temperature in the life history of the lesser cornstalk borer. The two principal areas of investigation are adult locomotor behavioral patterns and diapause. ...
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Hannusch, Heather (2019-05-16)Understanding the responses of savanna communities to disturbance and altered resource conditions will gain importance under climate-change induced modifications to precipitation patterns and nutrient cycling. This study ...
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Long-term vegetation changes in a Texas coastal prairie wetland complex with insights for managers Llosa, Marissa (2021-12-02)Restoration efforts can enhance the value of wetlands and their ecosystem services, yet they are often performed without understanding the long-term trajectory of plant community development . To describe this trajectory ...
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Perrotti, Angelina Giovanna (2018-03-07)Researchers interested in late-Pleistocene extinctions continue to debate the potential drivers of this event and, at times, do not even agree on the timing of extinction for various species in different regions. This ...
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Paredes Salcedo, Rossana (2019-04-11)Ethnoarchaeology studies modern patterns of human behavior to understand and reconstruct past cultural practices as reflected in the archaeological record. The well-studied flora, the good preservation of botanical remains, ...
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Shackelford, Colin Scott (Texas A&M University, 2005-11-01)Perennial grass vegetation dynamics of heavy grazing, moderate grazing and ungrazed treatments were analyzed during two extreme drought events: the drought of 1951 to 1956 and the drought events centered on the year 2000. ...