Economics of protecting wilderness areas and old-growth timber in British Columbia

1995 ◽  
Vol 71 (1) ◽  
pp. 52-58 ◽  
Author(s):  
G. Cornelis van Kooten
Keyword(s):  
British Columbia ◽  
Key Words ◽  
Economic Efficiency ◽  
Timber Production ◽  
Costs And Benefits ◽  
Old Growth ◽  
Wilderness Area ◽  
Wilderness Areas ◽  
Present Worth ◽  
Multiple Accounts

This study examines the costs and benefits of preserving old-growth forests in British Columbia. Estimates of the present worth of old growth in timber production are compared with the measurable non-timber benefits from preserving old-growth, with the differences between the commercial timber and measurable non-timber values attributed to the unmeasured components of non-timber values. Economic efficiency benefits are then compared with benefits that accrue in other accounts used to analyze decisions. For reasonable values of non-timber values, current levels of wilderness protection (and thus of old growth) are more than adequate on the Coast, but an increase in wilderness area of 1.6 million ha (or some 80,000 ha of old growth) might be economically justifiable. Key words: economics and preservation of wilderness, protection of old growth, multiple accounts analysis

Cultivation of Hericium abietis on conifer sawdust

1997 ◽  
Vol 75 (7) ◽  
pp. 1155-1157 ◽  
Author(s):  
Guoping Xiao ◽  
Bill Chapman
Keyword(s):  
British Columbia ◽  
Key Words ◽  
Mushroom Cultivation ◽  
Old Growth ◽  
Old Growth Forest

Hericium abietis was isolated from a sporocarp collected near Quesnel Lake in the central interior of British Columbia and successfully cultivated indoors on conifer sawdust. Key words: Hericium abietis, mushroom cultivation, old growth forest.

Production of uredinia and telia by stalactiform blister rust in British Columbia

1993 ◽  
Vol 71 (3) ◽  
pp. 519-521 ◽  
Author(s):  
B. J. van der Kamp
Keyword(s):  
British Columbia ◽  
Life Cycle ◽  
Key Words ◽  
Alternate Host ◽  
Alternate Hosts ◽  
Blister Rust ◽  
Dry Areas ◽  
Do So

Records of uredinia and telia production on the alternate hosts of Cronartium coleosporioides in British Columbia and inoculation of Castilleja miniata with aeciospores collected from various locations showed that rust isolates from dry areas of the interior of British Columbia do not produce uredinia and may have lost the ability to do so. Collections from somewhat wetter areas produced uredinia or mixtures of uredinia and telia immediately following aeciospore inoculations, and field collections from such areas in June commonly had mixtures of uredinia and telia. Loss of the uredinial stage may be a response to climates that are often unsuitable for the spread or survival of the rust on the alternate host. Key words: stalactiform rust, uredinia, telia, rust life cycle.

scholarly journals Application of micronutrients and insurance herbicides in corn growing technologies

2019 ◽  
Vol 2019 (2) ◽  
pp. 25-35
Author(s):  
O.Y. Lokot ◽  
E.P. Tymoshenko ◽  
M.M. Selendy
Keyword(s):  
Key Words ◽  
Economic Efficiency ◽  
Mineral Nutrition ◽  
Mineral Fertilizers ◽  
Left Bank ◽  
Early Maturing ◽  
Key Words Maize

Studies have found that growing maize for grain on light low-humus soils of the left-Bank Polesie of Ukraine wih the use of microelements on the increased background of mineral nutrition provided the best indicators of economic efficiency. It is recommended to sow early- maturing (80 %) and mid-maturing- (20 %) hybrids with FAO 150-250 on the background of mineral fertilizers N120P60K60, applying herbicide MaizeTer power in the 3-5-leaf phase of a crop and fulfil out-off-root spraying crops with complex preparations “Rosaliq Aquatic” or ” Germ corn “. Key words: maize, insured herbicides, micro-fertilizers, early-maturing, mid-maturing, hybrids.

scholarly journals Impacto que genera la investigación de mercados en la toma de decisiones por la gerencia

ECA Sinergia ◽  
2018 ◽  
Vol 9 (2) ◽  
pp. 68
Author(s):  
Jairo Isaac Mendoza García ◽  
Mercedes Véliz Valencia
Keyword(s):  
Decision Making ◽  
At Risk ◽  
Key Words ◽  
Market Research ◽  
Previous Analysis ◽  
Costs And Benefits ◽  
Palabras Clave ◽  
Toma De Decisiones ◽  
The Impact

  La investigación de mercados resulta beneficiosa en diversas situaciones; sin embargo, la decisión de realizarla no es automática, esta decisión debe sustentarse en consideraciones previas de muchos aspectos, entre los cuales se puede mencionar, la comparación entre costos y beneficios, los recursos disponibles para realizarla y para llevarla a la práctica, así como la actitud de la gerencia hacia su realización. Por lo cual, debería efectuarse cuando el valor de la información que se genera, supera los costos de llevarla a cabo. Cuanto más importante sea la decisión frente a la que se enfrenta la administración y mayor sea la incertidumbre o el riesgo que ésta implica, mayor será el valor de la información obtenida. La investigación de mercados, suele realizarse, por empresas comerciales que son organizaciones independientes (proveedores externos) o departamentos dentro de las corporaciones (proveedores internos). La motivación en las utilidades en ocasiones hace que los investigadores o los clientes pongan en riesgo la objetividad o profesionalismo asociados con el proceso. Como investigadores, esto despierta nuestro interés y mediante encuestas realizadas en varias empresas dentro de la provincia de Manabí, se pretende dar a conocer el impacto que genera la investigación de mercados en la toma de decisiones por la gerencia, es decir, una vez realizado un análisis previo de la situación de la empresa, cuán importante es aplicar o no aplicar la investigación de mercados.   Palabras clave: Planificación, análisis, empresas, consumidores, competencia, estrategias.   ABSTRACT Market research is beneficial in various situations; however, the decision to make it is not automatic, this decision must be based on previous considerations of many aspects, among which we can mention, the comparison between costs and benefits, the resources available to carry it out and to put it into practice, as well as the attitude of management towards its realization. Therefore, it should be done when the value of the information generated, exceeds the costs of carrying it out. The more important the decision faced by management and the greater the uncertainty or the risk involved, the greater the value of the information obtained. Market research is usually carried out by commercial companies that are independent organizations (external suppliers) or departments within corporations (internal suppliers). Motivation in profits sometimes causes researchers or clients to put at risk the objectivity or professionalism associated with the process. As researchers, this arouses our interest and through surveys carried out in several companies within the province of Manabí, it aims to publicize the impact that generates the market research in decision making by the management, namely, once a previous analysis of the situation of the company, how important it is to apply or not to apply market research.   Key words: Planning, analysis, companies, consumers, competition, strategies.

Macrofungi from six habitats over five years in Clayoquot Sound, Vancouver Island

2004 ◽  
Vol 82 (10) ◽  
pp. 1518-1538 ◽  
Author(s):  
Christine Roberts ◽  
Oluna Ceska ◽  
Paul Kroeger ◽  
Bryce Kendrick
Keyword(s):  
British Columbia ◽  
Rare Species ◽  
Vancouver Island ◽  
The Other ◽  
Forest Types ◽  
Natural Ecosystems ◽  
Old Growth ◽  
Second Growth ◽  
Clayoquot Sound

Over 5 years, macrofungi from six habitats in Clayoquot Sound, Vancouver Island, British Columbia, were documented. Habitats were categorized as dune, spruce fringe, old-growth rainforest, second-growth forest, bog, or estuarine. All but the second-growth forest are natural ecosystems. A total of 551 taxa of macrofungi were recorded. Between 17% and 36% of the species in any one habitat were found only in that habitat. The most frequently encountered and ubiquitous species was Craterellus tubaeformis (Fr.) Quel., found in all years, habitats, and sites. Of the 551 taxa, only 28 were found every year, and 308 were found in only 1 year. Rare species that were recorded include Cordyceps ravenelii Berkeley & Curtis, Hygrophorus inocybiformis Smith, and Tricholoma apium Schaeffer in the dunes and Stereopsis humphreyi (Burt) Redhead in the spruce fringe. Similarities between habitats based on taxa in common showed that bog and estuarine habitats had only 9%–17% in common with each other and the other habitats, whereas dune, spruce fringe, and the two forest types shared 21%–31% of their species. Old-growth rainforest yielded approximately 4 times as many species as bog and estuarine habitats, and approximately 1.5 times as many as the other three habitats.Key words: Clayoquot Sound, Vancouver Island, macrofungi, habitats, biodiversity.

Solitude: Bell Mountain Wilderness and Søren Kierkegaard

2015 ◽  
Author(s):  
Belden C. Lane
Keyword(s):  
Ground Beef ◽  
The Sun ◽  
Bald Eagles ◽  
Spider Webs ◽  
Dirt Road ◽  
Wilderness Area ◽  
Wilderness Areas ◽  
Set Up ◽  
Late Start ◽  
Turkey Vultures

It is an uncommon gift to have a mountain to yourself. Pulling up to the trailhead for the Bell Mountain Wilderness Area, I saw no other vehicles parked there and began to hope for as much. I noticed that the dirt road into the area hadn’t been graded recently. Another good sign was my having to wipe spider webs from my face every hundred yards or so as I hit the trail. Obviously no one had been there for a while. But the real treat was reaching the top of the mountain and finding nothing. A favorite campsite lay empty, nestled in the rocks just above the treetops. From there you can look out onto thousands of acres of oak- and hickory-covered hills to the east. Not a road or a building in sight, nothing but trees. Bell Mountain is one of eight protected wilderness areas in Missouri. It is named after a family that once lived and farmed along its 1,700-foot ridge. I’d gotten a late start that day and the sun was going down by the time I set up camp. But sunlight on a late April afternoon, filtered through the yellow-green growth of new leaves, can be stunning. I sat on a rock ledge, cutting up potatoes, onions, and carrots for mulligan stew, watching shadows creep up the hills across the hollow. Putting the vegetables in a pot, I added fresh basil and rosemary, topped it off with ground beef, and washed it down with a shot of Grand Marnier as night came on. I delight in the solitude of these trips, but I’m not always sworn to a monastic austerity. Bell Mountain is a good place for the study and practice of solitude. I’ve sat there for hours with only the dog beside me, watching red-tailed hawks and turkey vultures soar on thermals rising from the forest below. Now and then you’ll see a lone eagle high overhead, though generally they nest closer to the river. Bald eagles are common in Missouri, especially in winter.

Cultural Forests in Cross Section: Clear-Cuts Reveal 1,100 Years of Bark Harvesting on Vancouver Island, British Columbia

2019 ◽  
Vol 84 (3) ◽  
pp. 516-530 ◽  
Author(s):  
Jacob K. Earnshaw
Keyword(s):  
British Columbia ◽  
Cross Section ◽  
Growth Ring ◽  
Vancouver Island ◽  
Forest Harvesting ◽  
Contact Period ◽  
Old Growth ◽  
Ancient Forest ◽  
Post Impact ◽  
Bark Peeling

Culturally modified trees (CMTs) provide tangible evidence of long-term forest use by Indigenous peoples. In Northwest Coast cedar forests, this record rarely spans beyond the last three centuries because older bark-harvest scars have been obscured through taphonomic processes such as natural healing and decay. Thus, archaeological visibility and identification are hindered. Here, I recover chronologies of ancient forest harvesting using a post-impact assessment methodology of targeting old-growth clear-cuts in southern Nuu-chah-nulth territories on the west coast of Vancouver Island, British Columbia, Canada. Bark-peeling scars are identified and dated in cross section by growth-ring patterns of recently logged trees. Approximately half of all bark-peeling scars are “embedded” inside healing lobes, suggesting at least half of all such CMTs are effectively invisible in standing forests. Features in these post-impact surveys predated those discovered in conventional archaeological impact assessments by a mean of almost a century. Additionally, one of the oldest continually used cultural forests ever recorded, dating to AD 908, is found in the Toquaht Nation traditional territory. These findings uncover measurable frequencies of cedar-bark harvesting generations prior to the contact period and reveal the inadequacy of heritage protections for old-growth cedar stands.

Timber production versus old-growth preservation with endogenous prices and forest age-classes

2004 ◽  
Vol 34 (6) ◽  
pp. 1296-1310 ◽  
Author(s):  
Olli Tahvonen
Keyword(s):  
Environmental Values ◽  
Timber Harvesting ◽  
Timber Production ◽  
Forest Age ◽  
Forest Land ◽  
Age Classes ◽  
Old Growth ◽  
Class Distribution ◽  
Age Class ◽  
Long Run

This study combines timber production and environmental values, applying a dynamic forest-level economic model with any number of forest age-classes. The model includes endogenous timber price or nonlinear harvesting costs and various possibilities to specify the dependence of environmental values (related e.g. to species persistence) on the forest age-class structure. The nonlinearities in the net benefits from timber production have the consequence that fluctuations in optimal timber harvesting may totally vanish or at least become smaller than in forest scheduling models without ad hoc even flow constraints. If environmental values are specified to depend on the fraction of forest land preserved as old growth, the optimal long run allocation between timber production and old growth is represented by an equilibrium continuum. Thus the optimal long run allocation depends on the initial age-class distribution. The continuum and the dependence of initial age-class distribution vanish when the rate of discount approaches zero. If the environmental values of age-classes increase smoothly with age, the long run equilibrium may simultaneously include multiple rotation periods. The model determines the optimality of producing timber and environmental values separately at different parts of the forest or at the same piece of forest land. Numerical computation suggests that the optimal solution always converges toward some optimal long run stationary age-class distribution.

Isoetes × marensis, a new interspecific hybrid from western Canada

1995 ◽  
Vol 73 (9) ◽  
pp. 1345-1353 ◽  
Author(s):  
Donald M. Britton ◽  
Daniel F. Brunton
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
British Columbia ◽  
Key Words ◽  
North American ◽  
Interspecific Hybrid ◽  
Western Canada ◽  
Hybrid Plants ◽  
Surface Ornamentation ◽  
Scanning Electron

A new interspecific hybrid in Isoetes, I. maritima Underw. × I. howellii Engelm., is delineated and described from the Shuswap Highlands region of British Columbia by means of cytology and scanning electron microscopy of spores. Isoetes × marensis D.M. Britton and D.F. Brunton, hyb.nov. is the name proposed for this taxon. It is triploid (3x; 2n = 33) and is believed to produce only sterile and (or) aborted spores. Hybrid plants have polymorphic spores that demonstrate size and surface ornamentation features intermediate between those of the putative parents. Three populations were examined, each growing with both of the putative parents in silt and sand among granite cobble over clay along an emergent lakeshore. Isoetes × marensis is the first described North American hybrid involving an amphibious Isoetes. It is expected to be a rare taxon owing to the restricted sympatric area of the putative parents and their tendency to occupy different habitats. Key words: Isoetes, Isoetes howellii, Isoetes maritima, hybrid, British Columbia.

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