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Dissertations / Theses on the topic 'Agriculture and forestry'

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Published: 4 June 2021
Last updated: 26 July 2025

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1

Linde-Rahr, Martin. "Household economics of agriculture and forestry in rural Vietnam /." Göteborg : Dept. of Economics [Nationalekonomiska institutionen], Univ, 2002. http://www.handels.gu.se/epc/data/html/html/PDF/LindeRahrdissNEpdf.pdf.

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2

McDonald, Brian D. "Evaluation of industrial promoted agroforestry in Andhra Pradesh and Madhya Pradesh, India." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10774.

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Thesis (M.S.)--West Virginia University, 2009.<br>Title from document title page. Document formatted into pages; contains viii, 72 p. : ill. (some col.), col. maps. Includes abstract. Includes bibliographical references (p. 62-65).
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3

Smith, Andrew Allen 1963. "Identification of distinguishing characteristics around middens of Mount Graham red squirrels." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278095.

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I measured characteristics of vegetation around middens of the endangered Mount Graham red squirrel (Tamiasciurus hudsonicus grahamensis) in the Pinaleno Mountains of southeastern Arizona. Midden sites were compared to random sites in both the spruce/fir and transition-zone forests. Foliage volume, canopy closure over plot center, volume of downed logs &ge;20 cm in diameter, and density of snags >40 cm in diameter at breast height (dbh) were greater at midden sites and best distinguished midden sites from random sites in both forest types. The mean stand age of midden sites was >230 years in t
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4

Bailey, Scott Jay 1965. "Hibernacula use and home range of the desert tortoise (Gopherus agassizii) in the San Pedro Valley, Arizona." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278229.

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I quantified several aspects of hibernacula use and estimated home ranges of desert tortoises (Gopherus agassizii) in the San Pedro Valley, Arizona. Tortoises hibernated primarily on steep southerly slopes. Hibernacula included burrows in silt, silt with loose gravel, diatomite and/or diatomaceous marl, and beneath an ash layer, often in conjunction with live vegetation, dead and downed vegetation, and packrat (Neotoma albigula) nests. Male tortoises used longer hibernacula than females (p < 0.02). Female maximum hibernacula temperatures were consistently higher than male maximum hibernacula t
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5

Bright-Smith, Donald Joseph. "Habitat use by breeding male Northern Goshawks in northern Arizona." Thesis, The University of Arizona, 1994. http://hdl.handle.net/10150/278435.

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I radio-tagged and followed 5 and 9 male Northern Goshawks (Accipiter gentilis atricapillus) during the breeding seasons of 1991 and 1992, respectively, to evaluate their use of different forest conditions in managed ponderosa pine (Pinus ponderosa) forests. Sufficient data for habitat analyses were collected for 11 birds. Minimum convex polygon home-ranges averaged 1,758 ha (SD = 500 ha, range 896-2528 ha) and harmonic mean home ranges averaged 1,530 ha (SD = 477 ha, range 859-2,321 ha). I compared use (i.e., number of hawk locations) and availability (i.e., % of area of home range) for three
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6

Sarkar, Soumen. "Dynamic modeling of an articulated forestry machine for simulation and control." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27255.

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Recently, robotic technology has begun to play an important role in forestry operations. An important class of forestry machines is comprised of systems equipped with a mobile platform fitted with an articulated arm carrying a tree processing head. The dynamics of such systems are needed for simulation and control purposes. In contrast to conventional industrial manipulators, which are mounted on stationary bases, a mobile manipulator is dynamically coupled with its base. Base compliance, non-linearity and coupled dynamics result in positioning inaccuracies which in turn give rise to control p
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7

Boal, Clint William 1961. "An urban environment as an ecological trap for Cooper's hawks." Diss., The University of Arizona, 1997. http://hdl.handle.net/10150/288705.

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I studied a population of Cooper's hawks (Accipiter cooperii) nesting in the metropolitan city of Tucson, Arizona, from 1994 to 1997. I identified 51 Cooper's hawk territories distributed across Tucson with pockets of nesting density as great as 1 pair/64.7 ha. Eucalyptus (Eucalyptus spp.) (70.8%), aleppo pine (Pinus halepensis ) (25.0%), and cottonwood trees (Populus fremontii) (4.2%) were used as nesting structures more frequently than expected based on availability. Nest trees were primarily located in residential yards (48.3%) and high-use recreational areas (28.3%). Nest sites had a great
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8

Hancock, Wayne Mitchell. "Towards a farming systems approach to tree nut research in Malawi /." View thesis, 1992. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030616.121740/index.html.

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9

Elver, Harry 1961. "Factors affecting seedling mortality in Haitian agroforestry." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/278449.

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The purpose of this study was to assess the correlation between (1) selected seedling conditions and (2) the participating farmers' knowledge of planting techniques and the seedling mortality of trees supplied by the Pan American Development Foundation's Agroforestry Outreach Project in Haiti. During the spring of 1990 planting season, 18 sample farmers and the trees they received were studied to determine the correlation of several seedling conditions with seedling mortality. Rootball condition, leaf drop, plant turgor, and internal box temperature were measured during seedling transportation
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10

Mu, Bin. "System modelling, identification and coordinated control design for an articulated forestry machine." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27245.

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This thesis describes the modelling of electrohydraulic actuation systems of a prototype forestry vehicle, the experimental identification of the dynamic models parameters and control strategies for forestry operations.<br>The linear graph method is selected to derive comprehensive models of three electrohydraulic actuation subsystems, i.e. the swing, boom and stick subsystems, on the vehicle based on modelling of individual components. A new approach is proposed, then, to integrate rigid-body dynamic models with the actuator dynamic models to result in a complete machine model.<br>Off-line pa
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11

Zou, Pan. "The forestry system and the timber market in China." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26827.

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In the past two decades, China has achieved a spectacular success in its economic growth. As a basic input for the production process, the forest resource has been one of the fundamental factors propping up the expansion of China's economy. When China is absorbing imports of timber products in the global market, studies of China's forestry system and its timber market incite greater interest. This paper represents a systematic approach to probe into the comprehensive realities of China's forestry system and its timber market. Econometric methods are applied in analyzing the demand and supply p
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12

Mischuk, Nicole M. "Land use in Intermountain Conservation District, interactions between forestry and agriculture." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0015/MQ53194.pdf.

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13

Turner, Dale Scott 1957. "Ecology of the fringe-toed lizard, Uma notata, in Arizona's Mohawk Dunes." Thesis, The University of Arizona, 1998. http://hdl.handle.net/10150/278678.

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Uma notata in the Mohawk Dunes had population densities in good habitat of 15-17 lizards/ha. Testis volumes peaked in April-May and declined to low levels by August. Egg production peaked in May during 1995 but did not occur in spring 1996. Minimum convex polygon home range estimates were 530 (±70 SE) m² for 2 adult males and 228 (±82) m² for 8 adult females. Adjusted for sample size bias, these estimates were 994 (±422) and 774 (±302) m², respectively. Subadults had smaller home ranges. Uma notata actively used perennial plants as escape cover, preferentially selecting Ambrosia dumosa. I foun
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14

Byrd, William N. Biggs Lindy. "Wiregrass the transformation of southeast Alabama, 1880-1930 /." Auburn, Ala, 2009. http://hdl.handle.net/10415/1695.

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15

Mattivi, Pietro. "Remote sensing and geomorphological data in support of precision agriculture and forestry." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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Precision agriculture and forestry require a great deal of spatial data, in order to study the heterogeneity in vegetation conditions. The acquisition of this information can help decision-making and site-specific operations. The final aim of these land management procedures is to meet production demand, reducing waste and environmental impacts. The amount of data requested is huge and their collection could be considerably expensive in time and money. However, some of this information can be extracted from ready available data source, which are Digital Terrain Models (DTMs) and spaceborne R
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16

Ashkenazi, Rafael 1958. "Influence of herbicides on establishment of tree seedlings in northern Israel." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277933.

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The influence of the herbicides sulfometuron and simazine on the establishment of 8 species of tree seedlings was studied in northern Israel. The experiment included three treatments and a control. The first treatment applied simazine at a rate of 5 kg/ha, and second treatment applied simazine at a rate of 5 kg/ha and sulfometuron at a rate of 0.03 kg/ha. Sulfometuron was applied alone at a rate of 0.03 kg/ha in the third treatment. Statistical analyses showed significant effects on the survival of some species treated with sulfometuron. To ensure earlier season survival, the rate of sulfometu
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17

McGranahan, Gordon. "Searching for the biofuel energy crisis in rural Java." [Madison, Wis. : s.n.], 1986. http://catalog.hathitrust.org/api/volumes/oclc/14908692.html.

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18

Bondoumbou, Pierre Vincent. "A critical evaluation of the tropical forest industry in the Republic of Congo as it conforms to the International Tropical Timber Organization sustainable management objectives." Thesis, The University of Arizona, 1999. http://hdl.handle.net/10150/291591.

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One of the innovations in the management of forest resources in the 1990s is the use of criteria and indicators (C&I) as a tool to measure the sustainability of forest management practices in general, as well as, specific forest related activities such as timber industry. The International Tropical Timber Organization has developed a set of criteria and indicators for the measurement of sustainability in natural tropical forests. This study uses these criteria and indicators to critically evaluate the current status of the forest industry in the Republic of Congo as it conforms to the ITTO sus
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19

Lindquist, Cynthia Anne. "Dimensions of sustainability: The use of vara blanca as a natural resource in the tropical deciduous forest of Sonora, Mexico." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/284272.

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Croton fantzianus Seymour (Euphorbiaceae), is a structurally important tree in the tropical deciduous forest of the Municipality of Alamos in southern Sonora. It has become important as a non-timber forest product within the last thirty-five years, harvested for stakes (vara blanca ) for the agricultural fields in Sonora, Sinaloa and Baja California. A study was carried out on ecology of the species, macroeconomics and household economics to determine sustainability of current patterns of use. During a study on the ecology of the tree the species was identified from specimens collected and fou
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20

Cardinal, Suzanne. "Étude de la répartition spatiale du cation Pb dans la végétation forestière au voisinage de l'autoroute 417." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5644.

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The purpose of this thesis is to explain the spatial diffusion of lead in the forest vegetation along highway 417, around Limoges, Ontario. The analyses of samples taken along both sides of the highway 417 tells us that the wind is the main carrier of particulate lead. Knowing that the predominant winds are from WNW, we conclude that there is a greater concentration of lead north-east of the highway where most of the emanations fall. Lead particles that are carried by the winds settle on the tree foliage and are absorbed in very small quantities by the leaves stomates. The concentration of lea
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21

Ansari, Rashid H. "Individual variation and feeding interactions between and within two freshwater fish species pumpkinseed (Lepomis gibbosus) and yellow perch (Perca flavescens)." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5925.

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Variation in feeding behaviour was studied among young individuals of pumpkinseed (Lepomis gibbosus) and yellow perch (Perca flavescens). Three types of food, Drosophila, Daphnia and Artemia were used for the experiments. Eight individuals of pumpkinseed differed significantly in their number of feeding attempts, in time interval between feeding attempts (in the beginning, middle and towards the end of the experiment), feeding angle, number of unsuccessful attempts and regurgitations. Most of the differences in the time interval between feeding attempts were observed in the middle and towards
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22

Traore, Fatoumata. "Les structures sociales traditionnelles, les réfugiés et la dégradation forestière dans la préfecture de Guéckédou, République de Guinée." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq26367.pdf.

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23

Bujold, Michelle. "Environmental values, a comparative study of government forest policies in Canada and Sweden." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ57093.pdf.

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24

Shumsky, Stephanie. "Wild edible plants (WEPs) and their contribution to food security: an analysis of household factors, access and policy in the semi-arid midlands of Kenya." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=117226.

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Food insecurity and malnutrition are issues that affect approximately one in seven people worldwide and climate change threatens to increase those risks in the future. Many of the policies that address future food systems emphasize resilience - a combination of flexibility in the face of disturbance and the capacity to adapt to change. In Sub-Saharan Africa many households employ livelihood systems that are highly sensitive to change and cannot adapt well to changing environmental conditions, leaving them vulnerable and reliant on coping strategies. Wild edible plants (WEPs) are a particularly
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25

Orefice, Joseph N. "Silvopasture in the Northeastern United States." Thesis, University of New Hampshire, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3708463.

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<p> Silvopasture, the sustainable integration of livestock and trees on the same unit of land, may have the potential to contribute to agricultural productivity in the Northeastern United States and concurrently encourage the ecosystems services which trees provide. Extremely little is known regarding the ecological characteristics of silvopastures being utilized, their social and economic drivers, or their agricultural productivity. Silvopasture characteristics, management, and reasons for use were documented through a purposeful sample of silvopasture practitioners in New York and New Englan
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Bae, Kikang. "Belowground carbon fluxes respond to nutrient availability in a northern hardwood forest." Thesis, State University of New York Col. of Environmental Science & Forestry, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3614763.

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<p> Soil respiration is a major flux of carbon to the atmosphere in terrestrial ecosystems. If belowground carbon cycling processes are disrupted, as by N deposition in northern hardwood forests, there could be feedbacks to atmospheric CO<sub>2</sub>. Despite its importance in the global carbon budget, soil respiration is not widely studied across different levels of nutrient availability in soils. In this study, we measured soil respiration across northern hardwood forest sites of differing fertility and age in the White Mountains of New Hampshire. </p><p> Across the range of soil nutrien
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Whitbeck, Kristen. "Understanding aspen in the James Bay area of Québec at multiple scales." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121316.

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Understanding tree species distributions and dynamics in northern boreal forests is necessary for appropriate societal action and response to critical issues such as climate change, increased economic development of northern natural resources, and the collateral damage to cultures of indigenous communities. Northern tree species are expected to be sensitive to ongoing and anticipated climate change. Due to their remoteness and lack of a history of management-oriented research, information that is available for temperate areas, such as species distribution maps, soils, and climatology is often
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Frei, Barbara. "Roles of maladaptive behaviour and evolutionary traps in the decline of a threatened woodpecker." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121235.

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The Red-headed Woodpecker (Melanerpes erythrocephalus) is a widespread, once common but increasingly rare North American bird species. Consistent long-term population declines have resulted in the species' threatened status in Canada and several states in the United States. Throughout most of its range, Red-headed Woodpeckers occupy habitats that have been heavily influenced by human presence and activities. Yet, there is little research quantifying the potential drivers of the species' population decline, which constrains conservation or policy action. The overall objective of this research i
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McMillan, Chloé. "Long-term effects of base cation fertilization on nutrient cycling and species composition of a sugar maple stand in southern Québec: application of the Rb/K reverse tracer." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123161.

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To improve the understanding of the long-term effect of forest potassium (K)-fertilization, I revived a 23-year-old base cation fertilization experiment in a sugar maple stand in southern Quebec (45°59.6'N 73°59.9'W). My main objectives were to determine (i) the long-term percent of K derived from fertilizer in the soil-plant system using the rubidium (Rb)/K reverse tracer method, (ii) if fertilization had altered the diversity of the understory plant community, and (iii) if there was still an effect on the growth and nutrient status of the sugar maple trees. In 1988, six 40 m × 40 m plots wer
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TANG, XUEFEI. "AN ELECTRONIC EDUCATIONAL ASSESSMENT TOOL." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1093013846.

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31

MASSARINI, RENO. "POWER - AWARE MOBILE SENSOR NETWORKS WITH RECONFIGURABLE COMPUTING NODES." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1159198177.

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32

Froehlich, Genice Frances 1953. "Habitat use and life history of the Mount Graham red squirrel." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/277333.

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I studied habitat use by 9 radio-collared Mt. Graham red squirrels (Tamiasciurus hudsonicus grahamensis) during the summers of 1988 and 1989 in the Pinaleno Mountains, Arizona. My 2 study areas represented an Engelmann spruce (Picea engelmannii)/corkbark fir (Abies lasiocarpa) association on High Peak and a Douglas-fir (Pseudotsuga menziesii) association on Merrill Peak. I trapped 9 squirrels in 33,400 trap hours, and calculated the seasonal home range for 4 animals, 2 in each study area. Hidden density was 0.54 and 0.2 middens/ha, respectively, but seasonal home range size (x = 3.62 ha) did n
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33

Carmichael, Gregory Bruce 1965. "Fences as barriers to desert mule deer along canals in central Arizona." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277866.

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Water associated with the Central Arizona Project (CAP) and its delivery systems attract wildlife. Crossing structures, alternate water sources, and fences have been built to reduce wildlife mortality associated with canals. Their effectiveness, however, has not been evaluated. I assessed the effectiveness of a woven wire and an electric fence located on the CAP and Tonopah Canals, respectively. The purpose of these fences was to prevent desert mule deer (Odocoileus hemionus crooki) from entering canals. I established track plots to quantify differences in deer use between areas separated by t
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Berner, Louis Robert 1963. "Habitat selection by mountain sheep in Mojave Desert scrub." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278189.

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I identified habitat use by 12-18 mountain sheep (Ovis canadensis nelsoni) in a 320-ha enclosure between June 1990 and June 1991 on the Desert National Wildlife Refuge, Nevada. The enclosure included 9 vegetation associations and 5 slope classes. I used a non-mapping technique and line transects to determine availability of vegetation associations and slope classes, and species composition, respectively. I determined use of habitats by mountain sheep with instantaneous sampling. Mountain sheep used midslopes and draw associations on the west side of the study area, and slope classes of 36-80%
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Fox, Kevin Bryant 1964. "Fawning habitat of desert mule deer in the Belmont and Bighorn mountains, Arizona." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278208.

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I monitored female desert mule deer (Odocoileus hemionus crooki) (n = 7) with radio telemetry in the Belmont and Bighorn mountains, Arizona, 1991. I examined habitat use, size of seasonal ranges, predation by coyotes, and behavior, and I identified fawning and fawn rearing habitat. Female desert mule deer preferred the montane vegetation associations and avoided creosote flats (Larrea tridentata) during fawning. Size of seasonal ranges were smaller in the 2 weeks postpartum (X = 3.75 km2 than in the 2 weeks prior to fawning (X = 6.71 km2 Activity during the first or last 4 hours of daylight di
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Bristow, Kirby Dale 1964. "Effect of simulated hunting during the rut on reproduction and movement of Coues white-tailed deer." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278228.

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I examined the influence of human disturbance on Coues white-tailed deer (Odocoileus virginianus couesi) by subjecting deer within separate but similar areas to different levels of disturbance during breeding seasons, 1990-91 and 1991-92. Marked does (n=7) were seldom found outside their harmonic mean core areas (χ² = 7.140, 6 df), or harmonic mean home ranges (χ² = 1.030, 6 df). In summer 1992, I collected reproductive information from 10 adult females within each area. Fetal rates within the control and treatment areas were 1.3 fetuses/female and 1.1 fetuses/female, respectively. The corpora
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Boal, Clint William 1961. "Northern goshawk diets in ponderosa pine forests in northern Arizona." Thesis, The University of Arizona, 1993. http://hdl.handle.net/10150/278373.

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Little dietary information exists for northern goshawks (Accipiter gentilis) in the southwestern United States. I conducted 1,539 hours of direct observation at 20 active goshawk nests in ponderosa pine forests on the North Kaibab Ranger District, Arizona, 1990-1992. I recorded 385 prey deliveries at a mean delivery rate of 0.25/hr. I identified 63 deliveries to class, and 307 to genus or species. Golden-mantled ground squirrels (Spermophilus lateralis) and cottontail rabbits (Sylvilagus spp.) were the most common mammalian prey species (41%). Stellar's jays (Cyanocitta stelleri) and northern
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Hayes, Charles Laforest 1966. "Nocturnal activity of female desert mule deer." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/291515.

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I quantified nocturnal activity of female desert mule deer (Odocoileus hemionus crooki) in the Belmont and Bighorn Mountains, Arizona, 1990. I determined seasonal differences in percent of time active and distances moved at night from locations of radio-collared deer. I compared nocturnal home ranges and habitat use to those obtained from daytime locations. Activity differed among seasons (P = 0.046). Nocturnal activity was greatest in spring and summer, and decreased in winter. Movement distances also varied with seasons (P = 0.045). Most of the area of nocturnal home ranges (88%) fell within
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Eaton, Dewey Mitchell 1960. "Ecology of arctic grayling in Becharof Lake tributaries." Thesis, The University of Arizona, 1993. http://hdl.handle.net/10150/291517.

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I studied the grayling populations in 4 tributaries of Becharof Lake. The grayling in Ruth River, and Salmon, Featherly and Becharof Creeks appear to be independent populations, with high fidelity to specific streams. All populations overwintered in the lake and migrated into the streams when water temperatures reached about 2.5 C. These populations contained some of the largest grayling in the state; generally >50% of the population exceeding 6 years in age and had fork lengths >400 mm. Interstream movement rates were about 2%, but intrastream movement was higher (18%). Spring migration into
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Forrest, Robert Eugene 1965. "Habitat use and preference of Gila topminnow." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/291708.

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The Gila topminnow (Poeciliopsis occidentalis occidentalis) is federally and state listed as endangered. My objectives were to quantify microhabitat use and preference of topminnow in the field and test responses to controlled laboratory settings. In Cienega Creek, topminnow preferred stream margins where the water was calm, shallow, and contained aquatic vegetation. Topminnow were always near the water surface. Water temperature averaged 1-2 C warmer in areas occupied by fish. In outdoor pools, groups of topminnow consistently preferred cover provided over no cover and selected the upper 1/3
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Mozzato, Daniele. "Factors affecting adoption and continuation of environmentally friendly practices in agriculture and forestry." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3427188.

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Agriculture and forestry can heavily affect the rural environment, especially when intensive practices are put in place. To increment environmental conservation, the EU financially supports the adoption of Environmentally Friendly Farming/Forestry Practices (EFFPs). To date, policies aimed at supporting EFFPs adoption in agriculture and forestry are however at a different development stage. Given this, and considering the strong interconnection between conservation of the rural environment and farmers' and forest owners' choices, it is crucial that policy design takes into account the range
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Davis, Ryan Stephen. "Ponderosa Pine Mortality and Bark Beetle-Host Dynamics Following Prescribed and Wildland Fires in the Northern Rocky Mountains, USA." DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/44.

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Ponderosa pine delayed mortality, and bark beetle attacks and emergence were monitored on 459 trees for 3 years following one prescribed fire in Idaho and one wildland fire in Montana. Resin flow volume (ml) was measured on 145 fire-injured ponderosa pine 2 and 3 years post-fire. Logistic regression was used to construct two predictive ponderosa pine mortality models, and two predictive bark beetle-attack models. Post-fire delayed tree mortality was greater with the presence of primary bark beetles independent of diameter at breast height (DBH) (cm), and was greater in smaller diameter trees m
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Flott, James Joseph 1956. "Cultural and other morphological studies of Perenniporia phloiophila and related species." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/277310.

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Perenniporia phloiophila (Aphyllophorales: Polyporaceae) colonizes the bark of live oak (Quercus virginiana Mill.) and is known only in the southeastern United States in this host. Cultural characteristics and mating systems of P. phloiophila and P. medulla-panis, vegetative incompatibility of P. phloiophila and temperature relationships and decay capacities of vegetative isolates of P. phloiophila, P. ohiensis and P. fraxinophila were investigated. Cultural studies indicate macroscopic and microscopic differences between the four species. Antagonistic hyphal interactions developed between dif
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Albert, Steven Keith 1960. "Desert mule deer and forage resources in southwest Arizona." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278157.

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I measured digestible protein consumed by 4 (2 M, 2 F) captive desert mule deer (Odocoileus hemionus crooki). Deer were fed native forage collected from the Belmont Mountains, Arizona. Intake of forage differed significantly (P < 0.05) between sexes in every season. Intake of digestible protein for both sexes was highest in fall, lowest in the spring and summer for males and females, respectively. Significant (P < 0.05) differences of forage biomass were recorded among all vegetation associations and seasons in the Belmont Mountains. The most forage biomass was available in winter, the least i
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Maingi, John Kaunda 1964. "Specific gravity and estimated physical properties of Emory oak in southeastern Arizona." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278168.

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Average specific gravity of Emory oak (Quercus emoryi) estimated from 115 increment cores was 0.567 ± 0.011 (95 percent confidence interval). Increment core specific gravity is a predictor of average tree specific gravity. Diameter breast height (dbh) and diameter root collar (drc) were correlated with increment core specific gravity, but the correlations were too low to be valuable for predictive purposes. Estimated physical properties of Emory oak wood were lower than those reported for Gambel oak (Quercus gambelii) but higher than those reported for alligator juniper (Juniperus deppeana).
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Reynolds, Michael Clair 1971. "Effects of burning on birds in mesquite-grassland." Thesis, The University of Arizona, 1997. http://hdl.handle.net/10150/291513.

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I investigated the effects of winter prescribed burning on relative abundance and species richness of birds in mesquite (Prosopis glandulosa)-grassland at the Welder Wildlife Foundation Refuge, Texas, from June 1995 to August 1996. Relative abundance (P=0.246) and species richness (P=0.622) of breeding birds were not different, but mourning doves (Zendaida macroura) (P=0.058) and great-tailed grackles (Quiscalus mexicanus) (P=0.084) increased, and black-bellied whistling ducks (Dendrocygna autumnalis) (P=0.040) declined in burned treatments. Relative abundance of wintering birds was greater (P
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Silva, Ramon Marcel da. "Silvicultura em pequenas e médias propriedades e a dinâmica da agricultura familiar no Planalto Sul de Santa Catarina." Universidade do Estado de Santa Catarina, 2014. http://tede.udesc.br/handle/handle/1954.

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Made available in DSpace on 2016-12-12T20:12:32Z (GMT). No. of bitstreams: 1 PGEF14MA033.pdf: 752406 bytes, checksum: 3501f228c23b89b4fe17e363f0034bbb (MD5) Previous issue date: 2014-10-31<br>This study aims to identify, analyze and characterize the reforestation of exotic species deployed by smallholders in southern highlands de Santa Catarina, these stands here treated as "family forestry", and understand the dynamics of this forest that is common in the region even which contradicts the dynamics of enterprises. May form a hypothesis about the existence of family forestry in the region. Th
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Ffolliott, Peter F. "Arid Zone Forestry Program: State of Knowledge and Experience in North America." College of Agriculture, University of Arizona (Tucson, AZ), 1989. http://hdl.handle.net/10150/310780.

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Weeks, Dane. "PLANT PEST QUARANTINE SURVEY INTERNSHIP WITH THEUNITED STATES DEPARTMENT OF AGRICULTURE." Miami University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=miami1500722486282801.

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Namubiru, Evelyn Lwanga. "Coping with top-down institutional changes in forestry." [Bloomington, Ind.] : Indiana University, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3342198.

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Thesis (Ph.D.)--Indiana University, School of Public and Environmental Affairs and the Dept. of Political Science, 2008.<br>Title from PDF t.p. (viewed on Oct. 6, 2009). Source: Dissertation Abstracts International, Volume: 70-02, Section: B, page: 0760. Adviser: Elinor Ostrom.
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