Bibliografías temáticas / Pinus ponderosa

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Literatura académica sobre el tema "Pinus ponderosa"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 31 de enero de 2023

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Artículos de revistas sobre el tema "Pinus ponderosa"

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Willyard, Ann, David S. Gernandt, Blake Cooper, Connor Douglas, Kristen Finch, Hassan Karemera, Erik Lindberg et al. "Phylogenomics in the Hard Pines (Pinus subsection Ponderosae; Pinaceae) Confirms Paraphyly in Pinus ponderosa, and Places Pinus jeffreyi with the California Big Cone Pines". Systematic Botany 46, n.º 3 (25 de octubre de 2021): 538–61. http://dx.doi.org/10.1600/036364421x16312067913435.

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Abstract— We sampled 130 individuals (2 to 25 per taxon) of Pinus subsections Ponderosae and Sabinianae. Nucleotide sequences were obtained by targeting 703 low copy nuclear genes. From the unenriched portion of the short reads, we assembled nearly complete plastome nucleotide sequences. We used 600 nuclear genes and the plastome sequences to create phylogenies and species trees that we compared to evaluate cytonuclear concordance and reticulation. We found that Pinus jeffreyi belongs with Pinus subsect. Sabinianae based on morphological synapomorphies as well as strong molecular phylogenetic support. Pinus ponderosa sensu lato is paraphyletic, and we suggest treatment as three species: P. ponderosa sensu stricto (with P. ponderosa var. ponderosa, P. ponderosa var. benthamiana, and P. ponderosa var. washoensis), P. scopulorum, and P. brachyptera. The persistence of lineages with the footprints of ancient nuclear introgression (labeled bpw in clade N4) and chloroplast capture (labeled bpw in clade P1) should caution species identification in Pinus subsection Ponderosae based on limited molecular data. The hybrid frequency was low based on cytonuclear discordance, and the persistence of an ancient P1 plastid clade is a better explanation than hybridization between P. ponderosa and P. jeffreyi for unexpected plastid associations in the western Sierra Nevada, USA. We identified a new potential zone of ancient admixture between P. ponderosa and P. scopulorum in Idaho, USA. Some populations of P. arizonica, P. brachyptera, P. engelmannii, and P. scopulorum in the USA are more closely related to taxa with distributions limited to Mexico than they are to each other. To integrate phylogeny and taxonomy, future work should sample widely in Mexico and the USA, score morphological characters (including seedling characters from the known seed parent), on the same individual as used for molecular data, and use methods that are based on individuals rather than population frequencies.
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Rappaport, Nancy Gillette, John D. Stein, Adolfo Arturo del Rio Mora, Gary DeBarr, Peter de Groot y Sylvia Mori. "RESPONSES OF CONOPHTHORUS SPP. (COLEOPTERA: SCOLYTIDAE) TO BEHAVIORAL CHEMICALS IN FIELD TRIALS: A TRANSCONTINENTAL PERSPECTIVE". Canadian Entomologist 132, n.º 6 (diciembre de 2000): 925–37. http://dx.doi.org/10.4039/ent132925-6.

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AbstractWe tested six behavioral chemicals, pityol, conophthorin, 4-allylanisole, verbenone, 2-hexenol, and α-pinene, in a series of field trials directed at six combinations of Conophthorus Hopkins – Pinus L. spp. (Pinaceae) in sites distributed across North America. Beetle – host tree combinations included Conophthorus ponderosae Hopkins on Pinus ponderosa Laws., C. ponderosae on Pinus monticola Dougl., Conophthorus conicolens Wood on Pinus pseudostrobus Lindl., Conophthorus teocotum Wood on Pinus teocote Schl. & Cham., Conophthorus coniperda (Schwarz) on Pinus strobus L., and Conophthorus resinosae Hopkins on Pinus resinosa Ait. trans-Verbenol was tested only on C. resinosae on P. resinosa. Traps baited with pityol caught more beetles than unbaited traps in nearly all of the assays, and conophthorin consistently inhibited male beetle response to pityol for all species tested. Behavioral responses of species of Conophthorus to α-pinene appeared to parallel host phylogeny, inasmuch as beetles using Haploxylon pines as hosts utilized α-pinene as a synergist for the beetle-produced pityol, whereas beetles using Diploxylon pines as hosts did not. α-Pinene was a synergist for pityol in C. ponderosae on P. monticola and C. coniperda on P. strobus, but not for species of Conophthorus on any other pines tested. Conophthorus ponderosae on P. ponderosa was the only beetle–host combination tested where verbenone was a synergist for pityol, but this effect was not consistent in all years of testing. It was also the only beetle–host combination in which 4-allylanisole was a repellent. For all other beetle–host combinations, verbenone was neutral to slightly repellent and 4-allylanisole was either synergistic or neutral in pityol-baited traps. Promising synergists and interruptants/repellents were identified for implementation in pest-management regimes, including conophthorin as an interruptant for all species of Conophthorus tested, 4-allylanisole as an interruptant for C. ponderosae on P. ponderosa, α-pinene as a synergist for pityol in all species tested on Haploxylon pines, and 4-allylanisole as a synergist for pityol in C. conicolens and C. coniperda.
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Filip, Gregory M., Helen Maffei y Kristen L. Chadwick. "Forest Health Decline in a Central Oregon Mixed-Conifer Forest Revisited After Wildfire: A 25-Year Case Study". Western Journal of Applied Forestry 22, n.º 4 (1 de octubre de 2007): 278–84. http://dx.doi.org/10.1093/wjaf/22.4.278.

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Abstract A 500-ac mixed-conifer forest near Cache Mountain in central Oregon was examined in 1979, 1992, 2002, 2004, and 2005 to document causes of forest health decline and subsequent wildfire damage. The site is dominated by grand fir (Abies grandis) and ponderosa pine (Pinus ponderosa), with some lodgepole pine (Pinus contorta) and subalpine fir (Abies lasiocarpa). Part of the area was clearcut or shelterwood harvested from 1983 to 1985. Between 1979 and 1992, grand fir increased substantially, whereas ponderosa pine decreased in stems and basal area/ac in the unharvested areas. From 1979 to 2002, grand fir experienced severe mortality that was caused primarily by the root pathogen, Armillaria ostoyae, and the fir engraver (Scolytus ventralis). In 2003, a wildfire burned all of the study area, and by 2004, most of the grand fir, subalpine fir, and lodgepole pine was killed. The least amount of mortality from fire occurred in the larger-diameter ponderosa pine. Two years after the 2003 fire, some of the grand firs with bole or crown scorch that were alive in 2004 were killed by fir engravers by 2005. For ponderosa pines, only a few trees with bole or crown scorch that were alive in 2004 were killed by bark beetles, mostly mountain pine beetle (Dendroctonus ponderosae) and red turpentine beetle (Dendroctonus valens), by 2005. This case study has relevance to current interpretations of forest health in similar mixed-conifer forests, the major causes of forest health decline, and the role of fire in forest health.
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Shirley, Brian M. y Stephen Cook. "Repellency and Toxicity of Conophthorus ponderosae Hopkins (Coleoptera: Scolytidae) by the Host Monoterpene Myrcene". Western Journal of Applied Forestry 22, n.º 4 (1 de octubre de 2007): 241–47. http://dx.doi.org/10.1093/wjaf/22.4.241.

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Abstract Seed orchards produce high-quality seed from selected tree genotypes. In the intermountain west, Conophthorus ponderosae Hopkins (Coleoptera: Scolytidae) is a pest in seed orchards of ponderosa pine, Pinus ponderosa (Laws). The effect of myrcene as a deterrent to coneattack by C. ponderosae in a ponderosa pine seed orchard was examined. Two factors were considered, timing of cone cluster attack and average brood production per cone cluster. There was a delayed attack by C. ponderosae on cones treated with vials of myrcene attached at thebase of cone clusters. During both 2003 and 2004, final brood production per cone was not affected significantly by the presence of myrcene. During 2003, brood production was influenced by the timing of attack, with later attacks resulting in fewer brood adults per cone cluster. The toxicity of myrcene to adult C. ponderosae was examined in a laboratory and compared with that of (+)-α-pinene, another host-produced monoterpene that acts as a synergist for the male attractant pheromone pityol.
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Wallace, John M., Timothy S. Prather y Vanelle Peterson. "Effects of Aminopyralid on Ponderosa Pine (Pinus ponderosa)". Invasive Plant Science and Management 5, n.º 2 (junio de 2012): 164–69. http://dx.doi.org/10.1614/ipsm-d-11-00052.1.

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AbstractInvasive weed control within cleared, forested sites in the inland Northwest is complicated by the susceptibility of ponderosa pine to synthetic auxin herbicide injury, used to control broadleaf weeds. Herbicide injury may lead to decreased canopy volume and variable growth patterns of ponderosa pine, which is a commercially important tree species. Herbicide injury to ponderosa pine can be decreased with dormant-season applications, a timing suited to control many weeds that may occur within ponderosa pine sites. However, spring-timed herbicide applications are needed to control other weeds, such as meadow hawkweed, and that application timing coincides with active ponderosa pine growth. In this study, we determined the level of injury to ponderosa pine resulting from spring-timed aminopyralid, clopyralid, and picloram applications beneath ponderosa pine canopies. Herbicide injury to leader and lateral candles and needle elongation was evaluated 1 and 12 mo after treatment (MAT). Low rates of aminopyralid alone (0.05 kg ae ha−1 [3 fl oz ac−1]) and aminopyralid + clopyralid (0.05 + 0.10 kg ae ha−1) resulted in herbicide injury ratings that did not differ from untreated trees. The high rate of aminopyralid (0.12 kg ae ha−1) resulted in leader candle injury on 75% of treated trees, 5% of which were necrotic at 12 MAT. Herbicide injury was observed on 30% of lateral candles. In comparison, picloram (0.28 kg ae ha−1) treatments resulted in necrosis or mortality of leader and lateral candles on 65% and 40% of trees, respectively, at 12 MAT. Results suggest that use of low rates of aminopyralid alone or in combination with low rates of clopyralid minimizes the risk of nontarget injury to ponderosa pine (> 5 yr old) while controlling hawkweed with a spring application.
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Widmer, Timothy L. y Stephen C. Dodge. "Infection of Select Pinaceae and Cupressaceae Seedlings to Phytophthora pinifolia". Plant Health Progress 20, n.º 2 (1 de enero de 2019): 106–11. http://dx.doi.org/10.1094/php-02-19-0011-rs.

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Phytophthora pinifolia caused a devastating disease on Monterey pine (Pinus radiata) in Chile. This pathogen has not been reported in the United States, but there is concern should it arrive. There is little information regarding other hosts besides Monterey pine that may be susceptible to this pathogen. In the present study, other potential hosts within the Pinaceae and Cupressaceae were inoculated with zoospores of P. pinifolia and observed for symptoms and infection after 4 weeks. Similar to Monterey pine, knobcone (Pinus attenuata), bishop (P. muricata), and ponderosa (P. ponderosa) pines were highly infectious, whereas several important species such as loblolly pine (P. taeda) and Douglas fir (Pseudotsuga menziesii) showed no infection. P. pinifolia was also not recovered from slash (Pinus elliottii) and eastern white (P. strobus) pines. This study is important because it demonstrates other economically important tree hosts are at risk by P. pinifolia, should it enter the United States.
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Rudloff, Ernst von y Martin S. Lapp. "Chemosystematic studies in the genus Pinus. VII. The leaf oil terpene composition of ponderosa pine, Pinus ponderosa". Canadian Journal of Botany 70, n.º 2 (1 de febrero de 1992): 374–78. http://dx.doi.org/10.1139/b92-050.

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The leaf oil terpene composition of ponderosa pines (Pinus ponderosa Laws.) from 37 sites west of the Continental Divide north of 42°, 5 sites east of the Divide in Montana, and 1 each from the Black Hills, South Dakota, Wilkerson Pass, Colorado, and Grand Canyon, Arizona was determined. Tree-to-tree variation was quite low, as was between-population variability at all northwestern locations. Quantitative and qualitative differences in several leaf oil terpenes were found between these and the eastern populations, which lends strong support to the taxonomic separation of ponderosa pine into the typical variety ponderosa and the northeastern var. scopulorum. Intermediate leaf oil terpene compositions were found in several trees near the Continental Divide, indicating that there is a transition between these two varieties. Whereas the Black Hills and Wilkerson Pass samples had terpene compositions that were similar to those of trees from eastern Montana, those from the Grand Canyon area differed quantitatively, indicating that a bridge to the southeastern var. arizonica may be found in the leaf oil composition as well. Key words: ponderosa pine, terpenes, leaf oil, varieties, geographic distribution, chemosystematics.
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Podrázský, Vilém, Zdeněk Vacek, Stanislav Vacek, Jan Vítámvás, Josef Gallo, Anna Prokůpková y Giuseppe D'Andrea. "Production potential and structural variability of pine stands in the Czech Republic: Scots pine (Pinus sylvestris L.) vs. introduced pines – case study and problem review". Journal of Forest Science 66, No. 5 (31 de mayo de 2020): 197–207. http://dx.doi.org/10.17221/42/2020-jfs.

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Scots pine (Pinus sylvestris L.) is one of the most important tree species in Eurasia. During the past centuries, it has been extensively introduced into artificial monocultures, but is currently experiencing a number of problems related to climate change and extreme droughts. There is a large-scale disintegration of its stands and, in addition to its replacement by other native trees, it is possible to use a wide range of introduced species of the same genus. The aim of the investigation was to compare production parameters, structure and diversity of pine stands at the age of 35 years in school Arboretum of Faculty of Forestry and Wood Science in Central Bohemia (320 m a.s.l., medium rich habitats, water deficit site). Seven species of pine were compared: ponderosa pine (Pinus ponderosa Douglas ex C. Hawson), Jeffrey pine (Pinus jeffreyi Balf.), black pine (Pinus nigra J.F.Arnold), eastern white pine (Pinus strobus L.), Lodgepole pine (Pinus contorta Douglas), Macedonian pine (Pinus peuce Griseb.) and the only native Scots pine. The results showed that significantly (P < 0.001) highest height, diameter at breast height and mean stem volume were achieved in Pinus ponderosa and P. strobus stands, while these parameters were lowest in P. peuce and P. nigra. In contrast, the lowest stand volume was calculated for P. strobus (112 m3·ha–1) due to the lower stand density, while the highest production was again in P. ponderosa (430 m3·ha–1). In terms of structural variability, the highest diversity was found in P. jeffreyi and P. peuce. The introduced pine species, especially P. ponderosa, could therefore play an important role in terms of production and economic potential and even replace native P. sylvestris on suitable sites.
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Flanagan, Paul. "Efficay of a Systemic Insecticide in Reducing Populations of Black Pineleaf Scale (Nuculaspis Californica)". Arboriculture & Urban Forestry 29, n.º 5 (1 de septiembre de 2003): 303–5. http://dx.doi.org/10.48044/jauf.2003.036.

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In 2001, 66 ponderosa pines (Pinus ponderosa) infested with black pineleaf scale (Nuculaspis californica) near Leavenworth, Washington, U.S., were selected for an insecticide trial. Twenty-two pines were injected with a systemic insecticide in October 2001; in March 2002, an additional 22 pines were similarly injected. The remaining 22 pines served as a control. Branches were collected in October 2002, and scale density per meter of foliage was compared among the fall treatment, spring treatment, and control trees. Both spring and fall treatments significantly reduced scale densities on 2002 and 2001 foliage. The spring treatment was more effective than the fall treatment.
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Steinauer, Ernest M. y Thomas B. Bragg. "Ponderosa Pine (Pinus ponderosa) Invasion of Nebraska Sandhills Prairie". American Midland Naturalist 118, n.º 2 (octubre de 1987): 358. http://dx.doi.org/10.2307/2425792.

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Tesis sobre el tema "Pinus ponderosa"

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Braun, David M. "Host colonization behavior of the mountain pine beetle (Dendroctonus ponderosae Hopkins) in thinned and unthinned stands of second-growth ponderosa pine (Pinus ponderosa Laws.) /". Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/5482.

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Parra, Jaque Carlos Alfonso. "Productividad de las plantaciones de pino ponderosa (Pinus ponderosa Dougl. ex Laws.) de la Comuna de Coyhique, Provincia de Coyhaique, XI Región". Tesis, Universidad de Chile, 2009. http://repositorio.uchile.cl/handle/2250/151537.

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Memoria para optar al Título Profesional de Ingeniero Forestal
Ecuaciones altura-diámetro, de volumen, determinación de calidad de sitio y elaboración de modelos de productividad son testeados para plantaciones de pino ponderosa (Pinus ponderosa Dougl. ex Laws.) no raleadas de la comuna de Coyhaique, provincia de Coyhaique, región de Aysén. Los datos para los ajustes se obtienen de 91 parcelas instaladas en todo el rango de edades, número de árboles por hectárea y distribución geográfica de las plantaciones de pino ponderosa. Seis ecuaciones H-D (dos lineales y cuatro no lineales) de las más ampliamente usadas en pino ponderosa, son ajustadas con un set de 1.378 datos H-D obtenidas de las 91 parcelas antes indicadas. Los modelos son ajustados para cada una de las 91 parcelas y comparados según error estándar de estimación. El siguiente modelo no lineal es el escogido porque convergió más eficientemente respecto a los otros modelos no lineales y tiene más flexibilidad que las funciones lineales, además tiene un bajo error estándar de estimación.
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Telewski, Frank W. "Ethylene Production By Different Age Class Ponderosa and Jeffery Pine Needles as Related to Ozone Exposure and Visible Injury". Springer-Verlag, 1992. http://hdl.handle.net/10150/303765.

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Author's manuscript for published article. See Additional Links field for link to published version.
Ethylene production by different needle age classes was characterized using a mercuric perchlorate traps in natural populations of two ponderosa pine varieties (Pinus ponderosa var. arizonica [Engelm] Shaw and var. ponderosa Dougl. ex Laws.) and Jeffery pine (Pinus leffrevi Grev. and Balf.). All ozone -exposed populations contained individuals which were symptomatic and asymptomatic with respect to visible ozone injury. Ethylene production of different needle age classes was also characterized in Pinus ponderosa var. ponderosa seedlings grown in open top ozone fumigation chambers. Older age class needles produce more ethylene than younger age class needles. Needles of both P. ponderosa var. ponderosa and P. jeffreyi exhibiting ozone injury in the field produced significantly (p >0.05) higher levels of ethylene than asymptomatic conspecifics. Seedlings exposed to highest treatment level of ozone in the fumigation study produced the highest levels of ethylene followed by fumigation with medium and low ozone concentrations and carbon filtered air. These data indicate that measurement of ethylene in conifer needles as a measure of stress needs to be calibrated for needle age class. It also suggests that the sensitivity of a tree to ozone injury may be regulated by the inherent ability of the individual to produce ethylene.
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Kernan, James T. "GIS analyses of paleo-fire regimes in ponderosa pine (Pinus ponderosa) forests extending spatial approaches in ecological interpretation /". Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10045.

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Thesis (Ph. D.)--West Virginia University, 2009.
Title from document title page. Document formatted into pages; contains xii, 174 p. : ill. (some col.), col. maps. Includes abstract. Includes bibliographical references.
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Woodall, C. W. "When Is One Core Per Tree Suffifcient To Characterize Stand Attributes? Results Of A Pinus Ponderosa Case Study". Tree-Ring Society, 2008. http://hdl.handle.net/10150/622568.

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Increment cores are invaluable for assessing tree attributes such as inside bark diameter, radial growth, and sapwood area. However, because trees accrue growth and sapwood unevenly around their pith, tree attributes derived from one increment core may not provide sufficient precision for forest management/research activities. To assess the variability in a tree’s inside bark radius, sapwood radius, and 10-year radial growth estimated by tree cores, two increment cores at 90 degree angles were collected from ponderosa pine (Pinus ponderosa) trees in eastern Montana (n = 2,156). Paired core measurements varied substantially with 13% mean difference for inside bark radius, 19% mean difference for sapwood radius, and 23% mean difference for estimates of radial increment. Furthermore, decreasing crown ratio, decreasing diameter, and increasing site slope were all found to increase differences in estimates derived from paired cores. Whether for management or research purposes, the number of cores that should collected per tree depend on a stand’s susceptibility to reaction wood, required measurement precision, and budgetary constraints.
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Rensing, Kim Howard. "Ultrastructure of the vascular cambium of Pinus ponderosa seedlings preserved by cryofixation and cryosubstitution". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0034/NQ65468.pdf.

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Insinna, Patrick. "Vergleichende Multiproxy-Untersuchungen zur Bioindikation von Pinus sylvestris L. und Pinus ponderosa DOUGL. ex P. et C. LAWS. in Brandenburg vor dem Hintergrund sich ändernder Klimabedingungen = Comparative multyproxy-investigations for bioindication on Pinus sylvestris L. and Pinus ponderosa DOUGL. ex P. et C. LAWS. in Brandenburg (Germany) against the background of a changing climate /". Bayreuth, 2007. http://opac.nebis.ch/cgi-bin/showAbstract.pl?sys=000252757.

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Donoso, Caro Manuel Alejandro. "Evaluación de Prácticas Silvícolas en Plantaciones de Pinus ponderosa (Dougl. Ex Laws) en la XI Región de Aysén". Tesis, Universidad de Chile, 2008. http://www.repositorio.uchile.cl/handle/2250/105002.

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Adams, Henry D., Greg A. Barron-Gafford, Rebecca L. Minor, Alfonso A. Gardea, Lisa Patrick Bentley, Darin J. Law, David D. Breshears, Nate G. McDowell y Travis E. Huxman. "Temperature response surfaces for mortality risk of tree species with future drought". IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/626267.

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Widespread, high levels of tree mortality, termed forest die-off, associated with drought and rising temperatures, are disrupting forests worldwide. Drought will likely become more frequent with climate change, but even without more frequent drought, higher temperatures can exacerbate tree water stress. The temperature sensitivity of drought-induced mortality of tree species has been evaluated experimentally for only single-step changes in temperature (ambient compared to ambient + increase) rather than as a response surface (multiple levels of temperature increase), which constrains our ability to relate changes in the driver with the biological response. Here we show that time-to-mortality during drought for seedlings of two western United States tree species, Pinus edulis (Engelm.) and Pinus ponderosa (Douglas ex C. Lawson), declined in continuous proportion with increasing temperature spanning a 7.7 degrees C increase. Although P. edulis outlived P. ponderosa at all temperatures, both species had similar relative declines in time-to-mortality as temperature increased (5.2% per degrees C for P. edulis; 5.8% per. C for P. ponderosa). When combined with the non-linear frequency distribution of drought duration-many more short droughts than long droughts-these findings point to a progressive increase in mortality events with global change due to warming alone and independent of additional changes in future drought frequency distributions. As such, dire future forest recruitment patterns are projected assuming the calculated 7-9 seedling mortality events per species by 2100 under business-as-usual warming occur, congruent with additional vulnerability predicted for adult trees from stressors like pathogens and pests. Our progressive projection for increased mortality events was driven primarily by the non-linear shape of the drought duration frequency distribution, a common climate feature of drought-affected regions. These results illustrate profound benefits for reducing emissions of carbon to the atmosphere from anthropogenic sources and slowing warming as rapidly as possible to maximize forest persistence.
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Biondi, Franco y Thomas W. Swetnam. "Box-Jenkins Models of Forest Interior Tree-Ring Chronologies". Tree-Ring Society, 1987. http://hdl.handle.net/10150/261796.

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Time domain properties of 23 tree-ring chronologies derived from a large sample of Douglas-fir and ponderosa pine trees growing in closed-canopy forests of Colorado and New Mexico were analyzed using Box-Jenkins models. A variety of statistical criteria were employed during the identification and validation stages for evaluating the performance of different significant models, and the "best" Box-Jenkins model and its immediate "competitor" were reported for each tree-ring chronology. All series were stationary, and only one was approximately a white noise series. Overall, the ARMA(1,1) model was judged the best for 11 series, and the second for 7 of the remaining 12 series. The AR(2) model was considered the best for 6 series, and the second for 4 of the remaining 17 series. No statistical evidence was found for moving average models, nor for models with more than three different parameters. However, both cyclical (or seasonal) models and third-order autoregressive models with a null second-order parameter were chosen for some series. Fitted models explained from 7 to 51% of the variance of the original ring-index series, with an average of about 22 %. All parameter estimates were positive, and they varied within a relatively small range. From a comparison of all employed criteria, Akaike's Information Criterion (AIC) was the one that performed best in identifying Box-Jenkins models for tree-ring chronologies. Possible distinctions were recognized that would separate the selected models according to species and /or standardization option. Among the 12 chronologies from Colorado sites, all derived using the same standardization option, most Douglas-fir series were best fitted by the ARMA(1,1) model, while most ponderosa pine series were best fitted by the AR(2) model, suggesting a difference in the biological persistence of the two species. On the other hand, most of New Mexico chronologies, developed using various standardization options, were best fitted by the ARMA(1,1) model, and no difference was found between Douglas-fir and ponderosa pine series. Also, models fitted to Colorado chronologies explained a lower amount of variance than those for New Mexico chronologies (averages of 17 versus 29% respectively), and cyclical models were mainly selected for New Mexico series. Although periodicities in Douglas-fir series were probably caused by western spruce budworm outbreaks, similar periodic patterns in ponderosa pine series were more difficult to explain because pine trees in the study area had not been defoliated by that insect. Compared to the original tree-ring chronologies, prewhitened series showed similar short-term growth patterns, reduced long-term growth fluctuations, lower standard deviations, and higher mean sensitivities. Also, cross-correlations between chronologies from the same area usually increased after prewhitening. Since the autocorrelation problem is crucial in analyzing the relationships between different time series, and in removing the biological persistence included in tree-ring chronologies, the Box-Jenkins approach should facilitate the analysis of the dynamic relationships between tree growth and environmental variables.
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Libros sobre el tema "Pinus ponderosa"

1

Rehfeldt, G. E. Adaptive variation in Pinus ponderosa from intermountain regions. [Ogden, Utah]: U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1986.

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Rehfeldt, G. E. Adaptive variation in Pinus ponderosa from Intermountain Regions. II, Middle Columbia River system. Ogden, Utah: Intermountain Research Station, 1986.

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Callaham, Robert Z. Pinus ponderosa: Geographic races and subspecies based on morphological variation. Albany, CA: United States Department of Agriculture, Forest Service, Pacific Southwest Research Station, 2013.

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Schmid, J. M. Periodic annual increment in basal area and diameter growth in partial cut stands of Ponderosa pine. [Fort Collins, CO] (204 W. Prospect Rd., Fort Collins, 80526): USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, 1991.

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Weber, John C. Geographic variation in speed of seed germination in central Oregon ponderosa pine (Pinus ponderosa Dougl. ex Laws.). Portland, Or: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, [1992], 1992.

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Weber, John C. Geographic variation in speed of seed germination in central Oregon ponderosa pine (Pinus ponderosa Dougl. ex Laws.). Portland, Or: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1992.

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Weber, John C. Geographic variation in speed of seed germination in central Oregon ponderosa pine (Pinus ponderosa Dougl. ex Laws.). Portland, Or: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, [1992], 1992.

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Pasek, Judith E. Comparison of risk/hazard rating systems for mountain pine beetle in Black Hills ponderosa pine forests. Golden, Colo: Renewable Resources, Rocky Mountain Region, Forest Health Management, USDA Forest Service, 1997.

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Sloan, John P. Ponderosa and Lodgepole Pine seedling bud burst varies with lift date and cultural practices in Idaho nursery. Ogden, UT]: U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1991.

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Schmid, J. M. Frequency of external defect and skidding damage in ponderosa pine stands in the Black Hills. [Fort Collins, Colo.]: USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, 1989.

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Capítulos de libros sobre el tema "Pinus ponderosa"

1

Ellis, D. D. y D. E. Bilderback. "Ponderosa Pine (Pinus ponderosa Laws.)". En Biotechnology in Agriculture and Forestry, 339–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-662-13231-9_21.

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Olszyk, David M., David T. Tingey, William E. Hogsett y E. Henry Lee. "Carbon dioxide and ozone affect needle nitrogen and abscission in Pinus ponderosa". En Plant Responses to Air Pollution and Global Change, 101–9. Tokyo: Springer Japan, 2005. http://dx.doi.org/10.1007/4-431-31014-2_12.

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Sherman, Robert J. y R. Keith Warren. "Factors in Pinus ponderosa and Calocedrus decurrens mortality in Yosemite Valley, USA". En Temporal and Spatial Patterns of Vegetation Dynamics, 79–85. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2275-4_9.

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Pushnik, J. C., D. Garcia-Ibilcieta, S. Bauer, P. D. Anderson, J. Bell y J. L. J. Houpis. "Biochemical Responses and Altered Genetic Expression Patterns in Ponderosa Pine (Pinus ponderosa Doug ex P. Laws) Grown under Elevated CO2". En Forest Growth Responses to the Pollution Climate of the 21st Century, 413–22. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-1578-2_38.

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Tausz, M., A. Bytnerowicz, W. Weidner, M. J. Arbaugh, P. Padgett y D. Grill. "Changes in Free-Radical Scavengers Describe the Susceptibility of Pinus Ponderosa to Ozone in Southern Californian Forests". En Forest Growth Responses to the Pollution Climate of the 21st Century, 249–54. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-1578-2_17.

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Miller, P. R. y J. Rechel. "Temporal Changes in Crown Condition Indices, Needle Litterfall, and Collateral Needle Injuries of Ponderosa and Jeffrey Pines". En Ecological Studies, 164–78. New York, NY: Springer New York, 1999. http://dx.doi.org/10.1007/978-1-4612-1436-6_8.

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Ford, S. P., J. P. N. Rosazza y R. E. Short. "Pinus Ponderosa Needle-Induced Toxicity". En Handbook of Plant and Fungal Toxicants, 219–29. CRC Press, 2020. http://dx.doi.org/10.1201/9780429281952-15.

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Wilshire, Howard G., Richard W. Hazlett y Jane E. Nielson. "Once and Future Trees". En The American West at Risk. Oxford University Press, 2008. http://dx.doi.org/10.1093/oso/9780195142051.003.0006.

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Along the Colorado Plateau’s high-standing Mogollon Rim in northern Arizona’s Coconino National Forest stands a small patch of big trees that matured well before Europeans came to North America. Massive ponderosa pines, and even pinyon pines and western junipers, tower above the forest floor, shutting out all but the most shade-tolerant competitors. Few places like this one still exist anywhere in the United States, even on national forest lands. A tourist hoping to see all the diversity that earliest European arrivals found commonplace in the western landscape must seek out a wide scattering of isolated enclaves across the region. Western forests no longer contain the grand glades and lush thickets that our forerunners encountered because most woodlands, especially those owned by the public, largely serve a wide variety of human purposes, as campsites or home sites, board-feet of lumber, potential jobs, recreational playgrounds, and even temples of the spirit. We also rely on forests to maintain habitat for endangered species and seed banks for restoring depleted biodiversity—and to provide us with clean air and water, stable hillside soils, and flood control in wet years. Forests must perform these roles while being consumed, fragmented by roads, and heavily eroded. But there is no guarantee that these most beloved and iconic of natural resources can sustain such a burden. Federal, state, and local government agencies oversee and regulate western U.S. forest lands and their uses, trying to manage the complex and only partly understood biological interactions of forest ecology to serve public needs. But after nine decades of variable goals, and five decades of encroaching development, western woodlands are far from healthy. Urban pollution and exotic tree diseases, some brought by humans, are killing pines, firs, and oaks. Loggers have more than decimated the oldest mountainside forests—most valuable for habitat and lumber alike—with clearcutting practices that induce severe soil erosion. Illegal clearings for marijuana farms are increasing.
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Actas de conferencias sobre el tema "Pinus ponderosa"

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Curtiss, Brian y Susan L. Ustin. "The Characterization Of Sources Of Illumination In A Ponderosa Pine (Pinus Ponderosa) Forest Community Using The Portable Instantaneous Display And Analysis Spectrometer". En 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, editado por Philip N. Slater. SPIE, 1988. http://dx.doi.org/10.1117/12.945695.

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Flett, Lonnie, Claire McLeod y Mark P. S. Krekeler. "THE DIVERSITY OF POTENTIALLY TOXIC ATMOSPHERIC PARTICULATE ASSOCIATED WITH THE MIDNITE URANIUM MINE, SPOKANE INDIAN RESERVATION: A SCANNING ELECTRON MICROSCOPY INVESTIGATION OF PINUS PONDEROSA BARK". En GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-318471.

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Kelley, Shari, Fraser Goff, Rory Gauthier y Margaret Anne Rogers. "Day 3 Supplemental Road Log. Los Alamos Ski Hill road to Jemez Pueblo via Forest Road 10 through Sierra de los Pinos and Ponderso". En 58th Annual Fall Field Conference. New Mexico Geological Society, 2007. http://dx.doi.org/10.56577/ffc-58.117.

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Informes sobre el tema "Pinus ponderosa"

1

Callaham, Robert Z. Pinus ponderosa: geographic races and subspecies based on morphological variation. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 2013. http://dx.doi.org/10.2737/psw-rp-265.

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Weber, John C. y Frank C. Sorensen. Geographic variation in speed of seed germination in central Oregon ponderosa pine (Pinus ponderosa Dougl. ex Laws.). Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1992. http://dx.doi.org/10.2737/pnw-rp-444.

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Surano, K. A. y J. R. Kercher. Effects of long-term elevated atmospheric CO{sub 2} concentrations on Pinus ponderosa. Office of Scientific and Technical Information (OSTI), octubre de 1993. http://dx.doi.org/10.2172/142514.

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Rehfeldt, Gerald. Adaptive variation in Pinus ponderosa from Intermountain regions. II. Middle Columbia River system. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station, 1986. http://dx.doi.org/10.2737/int-rp-373.

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Callaham, Robert Z. Pinus ponderosa: a taxonomic review with five subspecies in the United States. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 2013. http://dx.doi.org/10.2737/psw-rp-264.

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Weber, John C. y Frank C. Sorensen. Effects of stratification and temperature on seed germination speed and uniformity in central Oregon ponderosa pine (Pinus ponderosa Dougl. ex Laws.). Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1990. http://dx.doi.org/10.2737/pnw-rp-429.

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Houpis, J. L. J., K. A. Surano, S. Cowles, M. P. Costella, S. E. Benes y P. D. Anderson. Comparison of the response of mature branches and seedlings of Pinus ponderosa to atmospheric pollution: Annual report. Office of Scientific and Technical Information (OSTI), marzo de 1989. http://dx.doi.org/10.2172/6323922.

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Houpis, J. L. J., D. J. Anschel, J. C. Pushnik y P. D. Anderson. Variability in the intraspecific response of Pinus ponderosa seedlings subjected to long-term exposure to elevated CO{sub 2}. Office of Scientific and Technical Information (OSTI), enero de 1995. http://dx.doi.org/10.2172/52786.

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Houpis, J. L. J., P. D. Anderson, S. E. Benes, S. P. Phelps y A. T. Loeffler. Progress report for the project: Comparison of the response of mature branches and seedlings of Pinus ponderosa to atmospheric pollution. Office of Scientific and Technical Information (OSTI), septiembre de 1990. http://dx.doi.org/10.2172/6481193.

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Ball, J. Timothy, Peter D. Ross, John B. Picone, Hillar Y. Eichelmann y Gregory N. Ross. Whole System Carbon Exchange of Small Stands of Pinus Ponderosa Growing at Different CO{sub 2} concentrations in open top chambers. Office of Scientific and Technical Information (OSTI), diciembre de 1996. http://dx.doi.org/10.2172/762792.

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