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1
Pitt, Douglas G., Philip G. Comeau, William C. Parker, Daniel MacIsaac, Scott McPherson, Michael K. Hoepting, Al Stinson, and Milo Mihajlovich. "Early vegetation control for the regeneration of a single-cohort, intimate mixture of white spruce and trembling aspen on upland boreal sites." Canadian Journal of Forest Research 40, no. 3 (March 2010): 549–64. http://dx.doi.org/10.1139/x10-012.
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In Canada’s boreal forest region, there is increasing demand for practical regeneration strategies that will recreate mixed stands of white spruce ( Picea glauca (Moench) Voss) and trembling aspen ( Populus tremuloides Michx.). In 2002, we implemented an experiment in both west-central Alberta and northeastern Ontario to better understand the effects of herbaceous and woody vegetation control on crop tree survival and growth, within the context of prescription development for the regeneration of a single-cohort, intimate mixture of spruce and aspen. After five growing seasons, good spruce growth, health, and survival were observed with 2 m radial treatments consisting of herbaceous and woody (i.e., complete) vegetation control centred on trees planted at 5 m spacing. These spruce were 4%–64% taller and 68%–178% larger in stem diameter than untended trees, leading to 167%–1166% gains in stem volume, and were at least equivalent to the same stock grown at 2.5 m spacing and provided with complete, continuous relief from competition. Removing only the woody vegetation within treated radii stimulated herbaceous competition, resulting in reduced survival and growth of spruce and reduced height of surrounding aspen. Early results suggest that spot treatments that provide 2–4 years of relief from herbaceous and woody competition may offer a practical strategy for growing spruce with aspen.
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Jones, Michael L., Charles K. Minns, David R. Marmorek, and Floyd C. Elder. "Assessing the Potential Extent of Damage to Inland Lakes in Eastern Canada due to Acidic Deposition: II. Application of the Regional Model." Canadian Journal of Fisheries and Aquatic Sciences 47, no. 1 (January 1, 1990): 67–80. http://dx.doi.org/10.1139/f90-007.
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In this, the second of two papers on the development and application of a regional model of surface water acidification, we present the results of initial applications of the model to sensitive regions of eastern Canada. Data used for regional application of the model were obtained from a variety of sources, including acidic sulphate deposition monitoring data and regional lake water chemistry surveys. While these data do not provide a random sample of eastern Canadian lakes, we argue that there are no a priori reasons for expecting highly misleading biases in the data. Results of model applications are presented for observed 1980 sulphate deposition levels and for three alternative emission scenarios. The emission scenarios were simulated using a transfer matrix derived from the AES-LRTAP model. The results suggest that substantial additional damage (declines in surface water alkalinity and pH) is expected in some regions (e.g. northeastern Ontario), even at current deposition levels. The consequences of simple emission reduction strategies differ significantly among regions, suggesting that more complex strategies may be required to produce equitable benefits. To assist interpretation of a complex array of results, we propose an integrated representation of regional impacts that uses quantile-quantile plots of regional distributions of lake chemistry. Finally, we argue that while the results presented are highly uncertain, there are reasons to believe that, if anything, our damage estimates are conservative.
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Buttle, J. M., and R. A. Metcalfe. "Boreal forest disturbance and streamflow response, northeastern Ontario." Canadian Journal of Fisheries and Aquatic Sciences 57, S2 (September 7, 2000): 5–18. http://dx.doi.org/10.1139/f00-107.
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The effects of forest disturbance on streamflow from small (<10 km2) basins have been well documented; however, implications of such disturbance for streamflow from relatively large rivers in the Canadian boreal forest are unclear. Landsat imagery was used to determine changes in the type, amount, and location of forest disturbance in northeastern Ontario between 1985 and 1990. These were compared with streamflow responses from medium- and large-scale basins in the region. Harvesting dominated forest disturbance, and total disturbance as of 1990 ranged from 25% of basin area in the northwest part of the region to 5% in the southeast. There was limited streamflow response to land cover changes, with no definitive changes in water year runoff or peak flow magnitude and timing. This likely reflects the ability of relatively large basins to buffer the hydrologic impacts of the small degree of recent forest disturbance, combined with the influence of climatic variability on temporal trends in basin streamflow. However, disturbance was associated with increases in moderate and low flows from medium and large basins, respectively, which occurred largely during summer months.
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Keller, W., S. S. Dixit, and J. Heneberry. "Calcium declines in northeastern Ontario lakes." Canadian Journal of Fisheries and Aquatic Sciences 58, no. 10 (October 1, 2001): 2011–20. http://dx.doi.org/10.1139/f01-142.
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Thousands of lakes in northeastern Ontario, Canada, have been acidified by sulphur deposition associated with emissions from the Sudbury area metal smelters. However, water quality improvements including increased pH and reduced sulphate concentrations have followed large reductions in Sudbury emissions that were implemented, beginning in the 1970s. Substantial decreases in Ca concentrations accompanied these other changes in lakewater chemistry. Monitoring of 38 lakes 20128 km from Sudbury showed declines in Ca concentrations, averaging 2.7 µeq·L1·year1, over the period 19811999. Declines were particularly apparent during the 1990s, averaging 3.8 µeq·L1·year1. Paleolimnological reconstructions of the long-term Ca patterns in six lakes suggest that general lakewater Ca declines occurred through much of the 20th century. Comparison of recent measured Ca concentrations in 16 lakes with diatom-inferred pre-industrial Ca concentrations indicates that overall decreases in Ca have been large, averaging 74.6 µeq·L1 or 46%. Long-term Ca patterns may reflect a combination of factors including climatic changes, forest harvesting activities, and leaching by acid deposition, the effects of which we can not separate. Calcium declines have biological implications that will need to be considered in the development of appropriate targets as these lakes continue to recover from acidification.
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Manore, Jean. "Nature’s Power and Native Persistence: The Influence of First Nations and the Environment is the Development of the Mattagami Hydro-Electric System During the Twentieth Century." Montréal 1995 6, no. 1 (February 9, 2006): 157–77. http://dx.doi.org/10.7202/031092ar.
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Abstract To date, most analyses of hydro-electric development portray the environment and Aboriginal Peoples as victims unable to alter or resist its intrusion on to the landscape. However, an examination of the Mattagami river developments in northeastern Ontario illustrates that environmental conditions constantly influence the shape and development of the hydro-electric system. Also, while the ability of the northeastern Aboriginal Peoples to affect hydro-electric development is limited for much of this century, by the 1990s, their persistence and perseverance coalesces with changing court decisions and legislation, empowering them to negotiate with Ontario Hydro a moratorium on further development on the Mattagami River.
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Jessup-Falcioni, Heather Jane, and David Groulx. "Understanding Academic Best Practices in the Development of Entry-to-Practice Competencies for Public Health Nurses." Diversity of Research in Health Journal 3 (March 4, 2020): 125–28. http://dx.doi.org/10.28984/drhj.v3i0.162.
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The researchers sought to identify the best academic practices and approaches relating to three Canadian Association Schools of Nursing (CASN) Entry-to-Practice Domains. Collaborative research was conducted with nursing faculty, public health professionals and BScN students in Northeastern Ontario.
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Morris, J. R., and W. Kwain. "Sediment pH in Profundal Core Samples from the Turkey Lakes (Algoma, Ontario)." Canadian Journal of Fisheries and Aquatic Sciences 45, S1 (December 19, 1988): s155—s158. http://dx.doi.org/10.1139/f88-280.
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Vertical pH profiles were recorded in sediment cores from four of the Turkey Lakes in the Algoma region of northern Ontario. In the three upper lakes of the chain, median down-core pH, which should be correlated with historic lake water pH, was below the median down-core pH for other lakes in northeastern Ontario. The Turkey lakes had probably been relatively acidic, therefore, since pre-industrial times. Down-core pH tended to be lower in upstream lakes. While a pH minimum was typically observed at the sediment–water interface, the surficial sediments were not acidified relative to down-core sediments.
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Boudreau, Robert E. A., Jennifer M. Galloway, R. Timothy Patterson, Arun Kumar, and Frederick A. Michel. "A paleolimnological record of Holocene climate and environmental change in the Temagami region, northeastern Ontario." Journal of Paleolimnology 33, no. 4 (May 2005): 445–61. http://dx.doi.org/10.1007/s10933-004-7616-7.
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Patrikeev, Michael. "New Nesting Records of the Le Conte's Sparrow, Ammospiza leconteii, from Northeastern Ontario, with Some Notes on Nesting Behaviour." Canadian Field-Naturalist 120, no. 1 (January 1, 2006): 22. http://dx.doi.org/10.22621/cfn.v120i1.240.
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Le Conte’s Sparrow is sparsely distributed through northeastern Ontario with no confirmed records from Algoma District and eastern Lake Superior. Two nests were found in open poor fen between Wawa and Hawk Junction in central Algoma District in 1999. Notes on behaviour, nests, nestling development and feeding effort were taken during 9 hours and 38 minutes at one nest over three days.
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Gilbert, Robert, and John Shaw. "Glacial and early postglacial lacustrine environment of a portion of northeastern Lake Ontario." Canadian Journal of Earth Sciences 29, no. 1 (January 1, 1992): 63–75. http://dx.doi.org/10.1139/e92-008.
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A deep channel in bedrock extending to more than 25 m below sea level occurs along the north shore of the otherwise uniformly shallow Kingston basin of Lake Ontario. Bathymetric and subbottom acoustic data are used to map the topography of the channel and to reconstruct its late glacial and postglacial sedimentary history. The results are interpreted as showing that the large channel and smaller channels nearby were created by high-velocity subglacial meltwater flow. Acoustic facies assemblages of sediments deposited in the channels record patchy deposition, or deposition followed by partial erosion, of glacial sediments on the bedrock of the channel floor, followed by deposition and episodic erosion of glaciolacustrine sediment in a high-energy, ice-proximal lake. Palaeoslope analysis confirms that the early Holocene low-water phase of Lake Ontario resulted in the development of a fluvial system in part of the channel. Water level was controlled by a sill at Kingston. Kingston basin, the Bay of Quinte, and possibly, for a short time, a much larger area of the upper Great Lakes drained through the channel. However, for most of the period, until it was flooded by the rising waters of Lake Ontario, the channel was occupied by a small river on a wide floodplain or it was flanked by broad marshes.
11
Heppenheimer, Elizabeth, Ryan J. Harrigan, Linda Y. Rutledge, Klaus-Peter Koepfli, Alexandra L. DeCandia, Kristin E. Brzeski, John F. Benson, et al. "Population Genomic Analysis of North American Eastern Wolves (Canis lycaon) Supports Their Conservation Priority Status." Genes 9, no. 12 (December 4, 2018): 606. http://dx.doi.org/10.3390/genes9120606.
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The threatened eastern wolf is found predominantly in protected areas of central Ontario and has an evolutionary history obscured by interbreeding with coyotes and gray wolves, which challenges its conservation status and subsequent management. Here, we used a population genomics approach to uncover spatial patterns of variation in 281 canids in central Ontario and the Great Lakes region. This represents the first genome-wide single nucleotide polymorphism (SNP) dataset with substantial sample sizes of representative populations. Although they comprise their own genetic cluster, we found evidence of eastern wolf dispersal outside of the boundaries of protected areas, in that the frequency of eastern wolf genetic variation decreases with increasing distance from provincial parks. We detected eastern wolf alleles in admixed coyotes along the northeastern regions of Lake Huron and Lake Ontario. Our analyses confirm the unique genomic composition of eastern wolves, which are mostly restricted to small fragmented patches of protected habitat in central Ontario. We hope this work will encourage an innovative discussion regarding a plan for managed introgression, which could conserve eastern wolf genetic material in any genome regardless of their potential mosaic ancestry composition and the habitats that promote them.
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Phatanasakoo, Ajchareeya, Watcharin Sutthisai, and Sitthiporn Soonthorn. "Rajabhat University Development Model for Becoming an Entrepreneurial University." Academic Journal of Interdisciplinary Studies 11, no. 2 (March 5, 2022): 292. http://dx.doi.org/10.36941/ajis-2022-0052.
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This research aimed (1) to study the level of development factors of Rajabhat Universities in the northeastern region affecting an entrepreneurial university; (2) to study the level of characteristics of entrepreneurial universities in the Northeastern region; (3) to study the factors of development of Rajabhat University in the Northeastern region that affect to being an entrepreneurial university; and (4) to propose a model for the development of Rajabhat University in the northeastern region into an entrepreneurial university. The population of the study was the administrators and personnel of the Rajabhat University of Thailand. The sample size of the study was three hundred and sixty respondents. The statistical analysis of the research was done using descriptive analysis and multiple regression analyses. The results showed that (1) the mean values of development factors variable and characteristics of an entrepreneurial university were high; (2) development factors that influenced the characteristics of an entrepreneurial university were organizational strategy and structure, system, shared value, politics and policies, economics, and environment; and (3) when arranging the importance of development factors that clearly affected the university, it was found that organizational strategy was the most important, followed by shared values, systems, and organizational politics and policies. This study suggests that the administrators of Rajabhat Universities of Thailand should focus on the development factors that are of high importance such as corporate strategy, shared values, politics, and organizational policies. This will eventually lead to a successful development towards an entrepreneurial university in the future.
Received: 7 November 2021 / Accepted: 7 January 2022 / Published: 5 March 2022
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Hill, Steven B., Azim U. Mallik, and Han YH Chen. "Canopy gap disturbance and succession in trembling aspen dominated boreal forests in northeastern Ontario." Canadian Journal of Forest Research 35, no. 8 (August 1, 2005): 1942–51. http://dx.doi.org/10.1139/x05-126.
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Canopy gaps play an important role in forest vegetation dynamics when fire return intervals are long. However, there is little known about the role of gaps in the development of forest stands that initially dominate following stand-replacing disturbance. We investigated gap disturbance during the breakup of trembling aspen (Populus tremuloides Michx.) stands at two scales: at the stand level we quantified gap fraction and gap size as stand development proceeds; at the gap level we determined causes of gap-maker mortality and evaluated resulting gap-maker structure and decay as stand development proceeds. We also evaluated the impact that gaps have on stand transition by quantifying the abundance and growth of juvenile trees in gaps of different sizes and ages. Ten stands between 60 and 120 years since fire in northeastern Ontario were sampled using line intersect transects. Gap fraction doubled (∼18%36%) and mean gap size was more than four times greater (∼45200 m2) over the time period. Standing dead gap makers in early states of decay were most frequent in young stands, whereas snapped gap makers in various states of decay were most frequent in old stands. Infection by fungal pathogens was the most frequent cause of mortality (56%) and was not related to time since fire. Balsam fir (Abies balsamea (L.) Mill.) was the most abundant juvenile recruit. However, transition probabilities for tree species were independent of gap type. These results indicate that gap creation is frequent during early stages of stand development in boreal forests; however, it is unlikely that successional trajectory is affected by their formation.
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Poonputta, Apantee, and Prasart Nuangchalerm. "A Model Framework for Enhancing Twenty-First Century Competencies in Primary School Teachers within Northeastern Thailand's Sub-Area." International Journal of Learning, Teaching and Educational Research 23, no. 1 (January 24, 2024): 98–113. http://dx.doi.org/10.26803/ijlter.23.1.6.
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This study investigated the development of twenty-first-century competencies among primary school teachers in Thailand's sub-northeastern region. The research aimed to achieve three primary objectives: 1) assess the specific needs for enhancing teachers' twenty-first-century competencies in the sub-northeastern Thailand region; 2) construct a model designed to establish teachers' twenty-first-century competencies within this context; and 3) implement and evaluate the effectiveness of the developed model. The study's participants consisted of 390 teachers from the sub-northeastern region who were selected by a formula-based approach for the needs analysis, five experts for model evaluation selected by means of purposive sampling, and 30 teachers selected by purposive sampling for model implementation. To gather data, various instruments were employed, including a questionnaire to assess the needs for enhancing teachers' twenty-first-century competencies in the sub-northeastern Thailand region, a model evaluation form, a model for the development of teachers' twenty-first-century competencies in the sub-northeastern Thailand region, a twenty-first-century competencies evaluation form, and a satisfaction questionnaire. Data analysis involved mean scores, standard deviations, priority need indexes, medians and interquartile ranges. The results of this comprehensive study shed light on the specific competencies required by teachers in the twenty-first century, serving as a valuable resource for educators and policymakers alike in their ongoing efforts to improve education quality.
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Manning, Sturt W., Jennifer Birch, Megan A. Conger, Michael W. Dee, Carol Griggs, Carla S. Hadden, Alan G. Hogg, et al. "Radiocarbon re-dating of contact-era Iroquoian history in northeastern North America." Science Advances 4, no. 12 (December 2018): eaav0280. http://dx.doi.org/10.1126/sciadv.aav0280.
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A time frame for late Iroquoian prehistory is firmly established on the basis of the presence/absence of European trade goods and other archeological indicators. However, independent dating evidence is lacking. We use 86 radiocarbon measurements to test and (re)define existing chronological understanding. Warminster, often associated with Cahiagué visited by S. de Champlain in 1615–1616 CE, yields a compatible radiocarbon-based age. However, a well-known late prehistoric site sequence in southern Ontario, Draper-Spang-Mantle, usually dated ~1450–1550, yields much later radiocarbon-based dates of ~1530–1615. The revised time frame dramatically rewrites 16th-century contact-era history in this region. Key processes of violent conflict, community coalescence, and the introduction of European goods all happened much later and more rapidly than previously assumed. Our results suggest the need to reconsider current understandings of contact-era dynamics across northeastern North America.
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Sharma, Sajal, George R. Dix, and J. FV Riva. "Late Ordovician platform foundering, its paleoceanography and burial, as preserved in separate (eastern Michigan Basin, Ottawa Embayment) basins, southern Ontario." Canadian Journal of Earth Sciences 40, no. 2 (February 1, 2003): 135–48. http://dx.doi.org/10.1139/e02-099.
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Comparison of litho-, bio-, and chemostratigraphy in two cores from the northeastern margin of the Michigan Basin (Manitoulin Island) and from within the Ottawa Embayment (eastern Ontario) identifies interbasinal differences of Late Ordovician platform foundering linked to Taconic orogenesis. Graptolite biostratigraphy defines an east-to-west younging (late Edenian to early Maysvillian) of platform burial. A regional unconformity likely caps the platform succession. In both basins, an increased supply of mafic material appears during the final stages of platform collapse, with the accumulation of organic-rich (<8%), petroliferous shales (Collingwood Member Michigan Basin; Eastview Member Ottawa Embayment). Both units preserve evidence for deposition coincident with increased dysoxic to possible anoxic bottom-water conditions, but the Collingwood Member accumulated under a relatively stable paleoceanographic environment. Rhythmic interbedding with platform limestone in eastern Ontario, combined with evidence for fluctuating paleoproductivity, suggests the depositional environment of the Eastview Member was more sensitive to higher order controls affiliated with tectonic, oceanographic, and (or) sea level variation. Such interbasinal differences likely reflect a greater rate of subsidence in the Manitoulin region transforming platform sedimentation to a distal ramp facies. In eastern Ontario, a lesser rate of subsidence maintained a shallower water, but open margin, setting. Burial of the Upper Ordovician platform, as preserved in eastern Ontario, occurred during peak dysoxic conditions, with deposition of a hemipelagic facies (Billings Formation) that marks the peak supply of clay-size mafic-derived sediment. Bottom-water ventilation occurred only with appearance of abundant Taconic-derived distal turbidites. An equivalent hemipelagic facies appears to be absent from the Manitoulin region. However, equivalent resedimented deposits are represented by the Blue Mountain Formation.
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Shoemaker, E. M. "Subglacial water-sheet floods, drumlins and ice-sheet lobes." Journal of Glaciology 45, no. 150 (1999): 201–13. http://dx.doi.org/10.3189/s0022143000001702.
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AbstractThe effect of subglacial lakes upon ice-sheet topography and the velocity patterns of subglacial water-sheet floods is investigated. A subglacial lake in the combined Michigan–Green Bay basin, Great Lakes, North America, leads to: (1) an ice-sheet lobe in the lee of Lake Michigan; (2) a change in orientations of flood velocities across the site of a supraglacial trough aligned closely with Green Bay, in agreement with drumlin orientations; (3) low water velocities in the lee of Lake Michigan where drumlins are absent; and (4) drumlinization occurring in regions of predicted high water velocities. The extraordinary divergence of drumlin orientations near Lake Ontario is explained by the presence of subglacial lakes in the Ontario and Erie basins, along with ice-sheet displacements of up to 30 km in eastern Lake Ontario. The megagrooves on the islands in western Lake Erie are likely to be the product of the late stage of a water-sheet flood when outflow from eastern Lake Ontario was dammed by displaced ice and instead flowed westward along the Erie basin. The Finger Lakes of northern New York state, northeastern U.S.A., occur in a region of likely ice-sheet grounding where water sheets became channelized. Green Bay and Grand Traverse Bay are probably the products of erosion along paths of strongly convergent water-sheet flow.
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Shoemaker, E. M. "Subglacial water-sheet floods, drumlins and ice-sheet lobes." Journal of Glaciology 45, no. 150 (1999): 201–13. http://dx.doi.org/10.1017/s0022143000001702.
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AbstractThe effect of subglacial lakes upon ice-sheet topography and the velocity patterns of subglacial water-sheet floods is investigated. A subglacial lake in the combined Michigan–Green Bay basin, Great Lakes, North America, leads to: (1) an ice-sheet lobe in the lee of Lake Michigan; (2) a change in orientations of flood velocities across the site of a supraglacial trough aligned closely with Green Bay, in agreement with drumlin orientations; (3) low water velocities in the lee of Lake Michigan where drumlins are absent; and (4) drumlinization occurring in regions of predicted high water velocities. The extraordinary divergence of drumlin orientations near Lake Ontario is explained by the presence of subglacial lakes in the Ontario and Erie basins, along with ice-sheet displacements of up to 30 km in eastern Lake Ontario. The megagrooves on the islands in western Lake Erie are likely to be the product of the late stage of a water-sheet flood when outflow from eastern Lake Ontario was dammed by displaced ice and instead flowed westward along the Erie basin. The Finger Lakes of northern New York state, northeastern U.S.A., occur in a region of likely ice-sheet grounding where water sheets became channelized. Green Bay and Grand Traverse Bay are probably the products of erosion along paths of strongly convergent water-sheet flow.
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Thorpe, Jocelyn. "To Visit and to Cut Down: Tourism, Forestry, and the Social Construction of Nature in Twentieth-Century Northeastern Ontario." Journal of the Canadian Historical Association 19, no. 1 (May 28, 2009): 331–57. http://dx.doi.org/10.7202/037437ar.
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Abstract This paper relies on the insights of social nature scholarship to trace the historical forest conservationist and tourism discourses through which Temagami, Ontario, became famous as a site of wild forest nature. The discursive practices associated with Temagami tourism and forest conservation in the early twentieth century did not merely reflect a self-evident wilderness, but rather constituted the region as a wild place for non-Native people both to visit and to extract for profit. The social construction of Temagami wilderness came to appear natural through the erasure of the Teme-Augama Anishnabai’s claim to the Temagami region, an erasure that persisted in environmentalists’ struggle to “save” the Temagami wilderness in the late 1980s. Revealing the histories and power relationships embedded in wilderness is part of the struggle toward greater justice.
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Mechai, S., G. Margos, E. J. Feil, L. R. Lindsay, and N. H. Ogden. "Complex Population Structure of Borrelia burgdorferi in Southeastern and South Central Canada as Revealed by Phylogeographic Analysis." Applied and Environmental Microbiology 81, no. 4 (December 12, 2014): 1309–18. http://dx.doi.org/10.1128/aem.03730-14.
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ABSTRACTLyme disease, caused by the bacteriumBorrelia burgdorferisensu stricto, is an emerging zoonotic disease in Canada and is vectored by the blacklegged tick,Ixodes scapularis. Here we used Bayesian analyses of sequence types (STs), determined by multilocus sequence typing (MLST), to investigate the phylogeography ofB. burgdorferipopulations in southern Canada and the United States by analyzing MLST data from 564B. burgdorferi-positive samples collected during surveillance. A total of 107 Canadian samples from field sites were characterized as part of this study, and these data were combined with existing MLST data for samples from the United States and Canada. Only 17% of STs were common between both countries, while 49% occurred only in the United States, and 34% occurred only in Canada. However, STs in southeastern Ontario and southwestern Quebec were typically identical to those in the northeastern United States, suggesting a recent introduction into this region from the United States. In contrast, STs in other locations in Canada (the Maritimes; Long Point, Ontario; and southeastern Manitoba) were frequently unique to those locations but were putative descendants of STs previously found in the United States. The picture in Canada is consistent with relatively recent introductions from multiple refugial populations in the United States. These data thus point to a geographic pattern of populations ofB. burgdorferiin North America that may be more complex than simply comprising northeastern, midwestern, and Californian groups. We speculate that this reflects the complex ecology and spatial distribution of key reservoir hosts.
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Devlin, Jane, and David V. Beresford. "Recent Range Records of Crayfish (Faxonius) From Far North Ontario, Canada." Freshwater Crayfish 28, no. 1 (December 15, 2023): 63–68. http://dx.doi.org/10.5869/fc.2023.v28-1.63.
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Abstract The Far North region of Ontario, Canada, is a wilderness area comprising 451,808 square kilometers of intact boreal forest and wetlands. Until the work presented here the most recent extensive survey for crayfish in the Far North region of Ontario was conducted in 1963. We sampled 81 locations across the Far North region of northern Ontario and the Hudson Bay Lowlands, Canada from 2009 to 2014 catching 96 specimens from 2 species: Faxonius virilis (Hagen) (92) and Faxonius propinquus (Girard) (4) These records define the northern boundary of freshwater crayfish. Unlike much of North America, species records were consistent with surveys conducted over 55 years ago. The Far North region of Ontario is facing proposed development at a scale not seen before, and our records provide necessary baseline data for ecosystem and wildlife monitoring, understanding potential future impacts, and to support sustainable resource management.
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Paterson, Andrew M., Brian F. Cumming, John P. Smol, and Roland I. Hall. "Scaled chrysophytes as indicators of water quality changes since preindustrial times in the MuskokaHaliburton region, Ontario, Canada." Canadian Journal of Fisheries and Aquatic Sciences 58, no. 12 (December 1, 2001): 2468–81. http://dx.doi.org/10.1139/f01-180.
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Scaled chrysophytes preserved in modern and fossil sediment samples from lakes in south-central Ontario were examined to evaluate changes in water quality since preindustrial times. Redundancy analysis determined that chrysophyte distributions were related to a primary gradient of pH, alkalinity, and ion concentration (λ1 = 0.26). A 117-lake reconstruction model from Ontario, the Adirondacks, and northeastern U.S.A. was used to infer the lakewater pH of present-day and preindustrial samples. A comparison of predicted and measured pH values of modern samples, analog matching, and an examination of inferences from triplicate cores in four lakes suggested that the inferences were reliable. Reconstructions indicated that presently acidic lakes (pH < 6) had acidified, whereas lakes with measured pH > 7 had become more alkaline. In comparison to other acid-sensitive regions, however, the overall change was small. The relatively short pH gradient, higher preindustrial pH values, and amount of acid deposition are factors that may explain these trends. Finally, we introduce a novel, multi-indicator reconstruction model, which provides an average of environmental reconstructions from diatom, chrysophyte cyst, and scaled chrysophyte assemblages. This model performed as well or better than the individual inferences when used to predict the pH of modern samples.
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Pickler, Carolyne, Hugo Beltrami, and Jean-Claude Mareschal. "Climate trends in northern Ontario and Québec from borehole temperature profiles." Climate of the Past 12, no. 12 (December 16, 2016): 2215–27. http://dx.doi.org/10.5194/cp-12-2215-2016.
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Abstract. The ground surface temperature histories of the past 500 years were reconstructed at 10 sites containing 18 boreholes in northeastern Canada. The boreholes, between 400 and 800 m deep, are located north of 51° N and west and east of James Bay in northern Ontario and Québec. We find that both sides of James Bay have experienced similar ground surface temperature histories with a warming of 1.51 ± 0.76 K during the period of 1850 to 2000, similar to borehole reconstructions for the southern portion of the Superior Province and in agreement with available proxy data. A cooling period corresponding to the Little Ice Age was found at only one site. Despite permafrost maps locating the sites in a region of discontinuous permafrost, the ground surface temperature histories suggest that the potential for permafrost was minimal to absent over the past 500 years. This could be the result of air surface temperature interpolation used in permafrost models being unsuitable to account for the spatial variability of ground temperatures along with an offset between ground and air surface temperatures due to the snow cover.
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Storck, Peter L., and Arthur E. Spiess. "The Significance of New Faunal Identifications Attributed to an Early Paleoindian (Gainey Complex) Occupation at the Udora Site, Ontario, Canada." American Antiquity 59, no. 1 (January 1994): 121–42. http://dx.doi.org/10.2307/3085506.
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Analysis of calcined bone from the Udora site in south-central Ontario, Canada, indicates that the subsistence of Early Paleoindian (Gainey complex) peoples in the lower Great Lakes region included a mix of both large and small mammals: caribou, hare, and arctic fox. The presence of arctic fox and other paleoecological data indicate that the Paleoindian occupation at Udora occurred in a spruce parkland environment between 10,000 and 10,500 years ago, the minimum age of that habitat, or earlier. Evidence that Paleoindian peoples in northeastern North America also hunted caribou suggests that the concept of a “northern” adaptive zone in the greater Northeast (including the Great Lakes region) has some validity; however, the presence of both parkland and forested environments in this zone and presumed caribou behavioral responses to those environments indicate that Paleoindian adaptations to caribou may have been quite variable.
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Wilson, Paul J., Sonya Grewal, Art Rodgers, Rob Rempel, Jacques Saquet, Hank Hristienko, Frank Burrows, Rolf Peterson, and Bradley N. White. "Genetic variation and population structure of moose (Alces alces) at neutral and functional DNA loci." Canadian Journal of Zoology 81, no. 4 (April 1, 2003): 670–83. http://dx.doi.org/10.1139/z03-030.
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Genetic variation was examined for moose (Alces alces) from Riding Mountain, Isle Royale, and Pukaskwa national parks; northwestern, Nipigon, northeastern, and central Ontario; New Brunswick; and Newfoundland. The national parks were identified as maintaining potentially different local selection pressures due to the absence of hunting and the presence or absence of the parasite Parelaphostrongylus tenuis. Genetic variation was estimated using neutral DNA markers, assessed by multilocus DNA fingerprinting and five microsatellite loci, and the functional antigen binding region (ARS) (exon 2) of the major histocompatibility complex (MHC) gene DRB. There was discordance in the allelic diversity observed at the neutral loci compared with the MHC DRB locus in a number of populations. Ontario populations demonstrated higher levels of variability at the neutral loci and relatively low levels at the DRB locus. Conversely, the Isle Royale population has the lowest genetic variability, consistent with a historic small founding event, at the neutral DNA markers and relatively high variability at the MHC gene. Relatively high levels of genetic variation at the DRB locus were observed in protected park populations concomitant with the absence of white-tailed deer (Odocoileus virginianus) or the parasite P. tenuis and an absence of hunting. Gene flow was observed among the neighboring geographic regions within Ontario, including Pukaskwa National Park, with evidence of isolation-by-distance among more distant regions within Ontario. The discordant patterns between DNA markers suggest that neutral DNA markers may not accurately reflect adaptive variation present at functional loci.
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Lacey, Melissa E., and Jeffery P. Dech. "Comparison of black spruce (Picea mariana) radial growth reduction in different soil moisture regimes during a spruce budworm (Choristoneura fumiferana) outbreak." Canadian Journal of Forest Research 42, no. 7 (July 2012): 1410–19. http://dx.doi.org/10.1139/x2012-080.
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The objective of this study was to determine if the stand‐level soil moisture regime had a significant effect on the reduction in black spruce (Picea mariana (Mill.) B.S.P.) radial growth during the most recent spruce budworm (Choristoneura fumiferana Clem.) outbreak in the boreal forest region of northeastern Ontario. We collected a stratified random sample of co-dominant black spruce trees from three moisture regimes and compared the reduction of radial growth during a spruce budworm outbreak between dry, moist, and wet stands. We focused on the most recent outbreak from 1975–1987, which we dated by dendrochronological analysis of black spruce increment cores from the Romeo Malette Forest near Timmins, Ontario. Samples collected from dry and moist sites showed significantly greater maximum radial growth reduction than those from wet sites. Mean growth reduction over the entire outbreak was not significantly different among moisture regimes but followed the same trend. We found no evidence of spatial autocorrelation in the growth reduction response, suggesting that the moisture effect was not confounded by location.
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ROY, Stabak, Samrat HORE, Saptarshi MITRA, and Grazyna CHABEREK. "DELINEATING REGIONAL DIFFERENTIATION ON THE DEVELOPMENT OF THE RAILWAY INFRASTRUCTURE IN NORTHEAST INDIA THROUGH AN EFFICIENT SYNTHETIC INDICATOR." Transport Problems 17, no. 3 (September 30, 2022): 165–78. http://dx.doi.org/10.20858/tp.2022.17.3.13.
Full textAbstract:
The northeastern region of India presents intra-regional disparity, which is reflected in every aspect of development. The transport sector, especially railway transportation, is one of the important aspects, and the development of railway infrastructure seems to be very different in every region. The research question addressed in this study was “Which factors, geo-physical or socio-economic, influenced the variation in the level of railway development in Northeast India?” The aim of the study was to delineate regional differentiation on railway development in Northeast India and to analyse the reasons for different development patterns of railway lines among the northeastern states. The research was based on secondary data collected from multiple sources, and the existing synthetic indicator was applied for the classification of eight states based on their railway infrastructural status. An alternative approach called the alternative synthetic indicator has been proposed and found to be more efficient than the existing synthetic indicator. The degree of inequality among the northeastern states by considering railway infrastructural variables was measured by plotting a Lorenz curve; the corresponding Gini coefficient specifies the unequal distribution of railway infrastructure among all the northeastern states. The causality of such unequal development has been analysed through a correlation test by defining the composite dimension index. The analysis revealed that all the externalities of regional inequality significantly influence the development of railway lines in northeastern states. Environmental determinism plays a crucial role in railway development in Northeast India, but political willingness is also crucial for creating an actual state of differentiation and will play a special role in the future.
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Dredge, Lynda A., and Robert J. Mott. "Holocene Pollen Records and Peatland Development, Northeastern Manitoba*." Géographie physique et Quaternaire 57, no. 1 (February 10, 2005): 7–19. http://dx.doi.org/10.7202/010328ar.
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AbstractPeatlands cover extensive parts of northeastern Manitoba that have low relief and impermeable substrates, with peat thicknesses varying between 25 and 400 cm. Peat reserves average 1.5 x 106m3/km2. Fens, forested plateau bogs, and polygonal plateau bogs are the prevalent peatland types. The thickest peat deposits consist ofSphagnumbogs that developed on glaciolacustrine or marine silt. Thinner deposits are composed of fen peat, or bog peat developed on sandy till. There is a positive relationship between peat thickness and time since postglacial emergence of the land. Also, recently emerged areas are dominated by fen peat, whereas bog peat is more prevalent on older surfaces. Pollen analysis of peat cores show that spruce trees have been abundant in the region south of Churchill for the past 6300 years. Local changes in peat type and accumulation rate occurred as bog and fen habitats changed, probably in response to changes in water table induced by aggradation and degradation of permafrost. Other taxa typical of boreal forest occupied suitable habitats similar to today, with bog and fen habitats increasing as paludification continued through time.
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Asaro, Christopher, and Douglas C. Allen. "History of a pine false webworm (Hymenoptera: Pamphiliidae) outbreak in northern New York." Canadian Journal of Forest Research 31, no. 1 (January 1, 2001): 181–85. http://dx.doi.org/10.1139/x00-147.
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A sustained outbreak of pine false webworm, Acantholyda erythrocephala (L.) (Hymenoptera: Pamphiliidae), in northern New York is unprecedented in its extent and duration. White pine, Pinus strobus L., is the preferred host in this region. What began as a 30-ha infestation of this introduced sawfly in 1981 affected 5440 ha of white pine distributed throughout 231 000 ha in St. Lawrence and Franklin counties by 1995. Occurrence of A. erythrocephala in the United States has been documented in eight northeastern and one north-central state (Connecticutt, Massachusetts, Maine, New Hampshire, New Jersey, New York, Pennsylvania, Vermont, and Wisconsin) and three Canadian provinces (Alberta, Newfoundland, and Ontario). Possible explanations for the occurrence and tenure of the current outbreak in New York are discussed.
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Härtling, Joachim W., and Robert Gilbert. "Spatial distribution of surficial sediments in part of the Kingston basin of northeastern Lake Ontario, Canada." Canadian Journal of Earth Sciences 37, no. 6 (June 1, 2000): 901–11. http://dx.doi.org/10.1139/e00-003.
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The distribution of surficial sediments in the interisland area of northeastern Lake Ontario is characterized by a generally homogeneous composition of fine grained muds with some local exceptions at the gaps leading into Kingston basin and in parts of North Channel. This pattern reflects principally differing levels of wave energy from the exposed areas of outer Kingston basin and Upper and Lower gaps to the more protected interisland area. Additional processes responsible for the distribution are currents at the Upper and Lower gaps and local slumping. The observed deposition of surficial sediments in the northern Kingston basin shows generally good agreement with the wave base calculations employing wind speeds of 60 km·h-1. The study region consists of three sedimentary environments. Above the wave base related to winds of less than 60 km·h-1 continual erosion and transport of all grain sizes leads to a constant source of sediment to the deeper parts of the Kingston basin. Above the wave base related to infrequent strong winds of more than 60 km·h-1, episodic removal of the fine grain sizes leads to winnowing of the fines and their being transported into North Channel and Kingston Harbour while the sands are left in place. Below the wave base the sediments are undistributed. Thus, there is no proximal-distal differentiation outward from the coasts nor along the channels. The sediment is transported with currents moving through North Channel and Kingston Harbour with similarly low velocities across the entire section.
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Frewin, Andrew J., Kevin Scaife, Hannah Fraser, and Cynthia D. Scott-Dupree. "Survey of the reproductive development of field-caught Halyomorpha halys (Hemiptera: Pentatomidae) in the Niagara Region of Ontario, Canada." Canadian Entomologist 151, no. 3 (March 18, 2019): 406–9. http://dx.doi.org/10.4039/tce.2019.9.
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AbstractHalyomorpha halys (Stål) (Hemiptera: Pentatomidae), also known as the brown marmorated stink bug, is an invasive agricultural and nuisance pest. Knowledge of the life history of insect pests is important for informing pest management activities. Some North American populations of H. halys have two generations per year, and it is suspected that H. halys may have a partial second generation in the Niagara Region of Ontario, Canada. We determined the number of H. halys generations in Ontario by examining the reproductive development of field-caught adult females. The pattern of reproductive development we observed supports the conclusion that H. halys complete one generation per year in the Niagara Region of Ontario. Reproductively active H. halys were captured as early as May and continued until early September, and the peak of reproductively active individuals occurred between 250 and 550 degree days calculated with a sine-wave function and a lower threshold set to 14.17 °C.
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Atauz, Sevil, Emrah Akbaş, and Reyhan Atasü-Topçuoğlu. "Human Trafficking in Turkey: Findings from Northeastern Anatolia." Asian and Pacific Migration Journal 18, no. 3 (September 2009): 419–40. http://dx.doi.org/10.1177/011719680901800305.
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This study is based on field research implemented in four cities in Northeastern Anatolia, Turkey. It focused mainly on the knowledge, attitudes and practices of different stakeholders with regard to human trafficking. Data were collected using semi-structured interviews conducted among 142 interviewees representing different sectors. Human trafficking in the region seems to occur solely in the form of sex trafficking of women. Findings suggest that the knowledge level of most officials, NGOs and community members is rather low, which may lead to stigmatizing and discriminatory attitudes towards trafficked women in the region. Anti-trafficking activities thus far have been limited and more remains to be done to combat human trafficking more effectively and more efficiently.
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Liu, A. Q., and G. W. K. Moore. "Lake-Effect Snowstorms over Southern Ontario, Canada, and Their Associated Synoptic-Scale Environment." Monthly Weather Review 132, no. 11 (November 1, 2004): 2595–609. http://dx.doi.org/10.1175/mwr2796.1.
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Abstract Lake-effect snowstorms are an important source of severe winter weather over the Great Lakes region and are often triggered by the passage of synoptic-scale low pressure systems. In this paper, a climatology of lake-effect snowstorms over southern Ontario, Canada, for the period 1992–99 is developed. The distinguishing characteristics of the synoptic-scale environment associated with intense lake-effect snowstorms in the region are identified through the study of individual events and through composite analysis. In particular, it is found that a low pressure and a cold-temperature anomaly situated over Hudson Bay, north of the Great Lakes, is a favorable environment for the development of intense lake-effect snowstorms over southern Ontario. It is also found that the track of the low pressure system can have a significant impact on the development or lack thereof of lake-effect snowstorms over southern Ontario. It is found that the low pressure systems that trigger intense lake-effect snowstorms tend to have an anomalous northeastward track as compared to the eastward track of most low pressure systems that transit the region.
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Mosley, Erin, Stephen B. Holmes, and Erica Nol. "Songbird diversity and movement in upland and riparian habitats in the boreal mixedwood forest of northeastern Ontario." Canadian Journal of Forest Research 36, no. 5 (May 1, 2006): 1149–64. http://dx.doi.org/10.1139/x06-010.
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Little is known about the importance of riparian areas in supporting avifaunal diversity in the boreal mixedwood forest, especially outside of the breeding season. Bird populations were sampled by mist netting 18 upland and 18 riparian sites along six streams in a forested region of northeastern Ontario. Riparian sites generally had more variable vegetation than upland sites. Some riparian sites formed distinctive habitats, while others were structurally and compositionally similar to upland sites. During spring and fall migration, there was no significant difference in bird abundance or species richness between riparian and upland habitats. During the breeding period, riparian areas had greater avian species richness and abundance and more insects than upland forests, suggesting that birds were selecting these habitats because they contain more food. More birds were captured in nets placed perpendicular to the stream than parallel during the breeding and fall migration periods, suggesting that riparian areas may function as movement corridors. A greater understanding of the importance of riparian habitats to songbird communities is needed if we are to maximize the effectiveness of these regions for conserving avian biodiversity in the boreal mixedwood forest.
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Breon, Robin. "Noises Off-Right: Theatre in the Toronto Region." Canadian Theatre Review 93 (December 1997): 16–22. http://dx.doi.org/10.3138/ctr.93.003.
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In their two-volume chronicle of the history and evolution of the theatre in Ontario from the early 1800s to the early 1970s, aptly titled Early Stages (volume 1) and Later Stages (volume 2), editors Ann Saddlemyer and Richard Plant have constructed a rich collection of essays that traces the development of theatre in the province, beginning with the early, mainly imported touring troupes which led to the advent of early indigenous theatricals produced by numerous amateur companies. These travelling companies explored the theatrical landscape of the period and led the way for the development of plays, playwrights and the birth of a professional Canadian theatre in Ontario. This history ends with the burgeoning of cultural nationalism in the mid-1960s and early ’70s. These two volumes are indispensable guide-posts for anyone attempting a reading of the state of our theatre in 1998. If Early Stages and Later Stages tell us anything about the present stage, it is that Toronto seems to have been destined to become a major centre for theatrical production.
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Cooke, Barry J., and Jens Roland. "Trembling aspen responses to drought and defoliation by forest tent caterpillar and reconstruction of recent outbreaks in Ontario." Canadian Journal of Forest Research 37, no. 9 (September 2007): 1586–98. http://dx.doi.org/10.1139/x07-015.
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We investigated the long-term effects of drought and defoliation by forest tent caterpillars on trembling aspen radial growth in the province of Ontario using a dendroecological approach. Drought, as measured by Hogg’s climate moisture index (CMI), was found to have no discernible impact on aspen radial increment in either northeastern or northwestern Ontario during the study period 1930–2003. Forest tent caterpillar outbreaks were strongly decadal in periodicity in both regions and resulted in similar patterns of periodic variation in tree ring-width chronologies, indicating that, in humid environments prone to spatially synchronized tent caterpillar outbreaks, herbivory is the main factor limiting aspen radial growth. We show that the major decadal outbreak cycles of forest tent caterpillar can, by filtering with the computer program OUTBREAK, be reliably reconstructed from raw aspen ring-width chronologies. We determine the filtering parameters that give the most reliable reconstruction fit to observed patterns of outbreaks in each region. We show that the periodic outbreak signal is present even in areas where aerial surveyors frequently failed to detect significant levels of defoliation, and that the outbreak signal necessarily includes minor defoliation episodes that occur in between the major decadal outbreak cycles.
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Luymes, Nick, and Patricia Chow-Fraser. "Community structure, species–habitat relationships, and conservation of amphibians in forested vernal pools in the Georgian Bay region of Ontario." FACETS 7 (January 1, 2022): 215–35. http://dx.doi.org/10.1139/facets-2021-0097.
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Forested vernal pools serve an integral role in the recruitment of amphibians in glaciated northeastern North America. In south-central Ontario, vernal pools exist in relatively unimpacted forest networks, but the amphibian communities face uncertain challenges from anthropogenic-induced climate change. We surveyed amphibian larvae and collected measurements of habitat characteristics from vernal pools to collect baseline information on amphibian community structure and species–habitat relationships. Amphibian communities were influenced by hydroperiod length and canopy openness, and the relative abundances of early breeding amphibians were affected by changes in the structure of vegetation communities within pools. Our study suggests that, even across moderate ranges of breeding habitat characteristics, the structure of amphibian communities is dynamic. With anthropogenic-induced climate change leading to more drought-prone summers, the conservation of intact forests that support diverse wetland assemblages will be a necessary component of future legislation.
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Argus, George W. "The phytogeography of rare vascular plants in Ontario and its bearing on plant conservation." Canadian Journal of Botany 70, no. 3 (March 1, 1992): 469–90. http://dx.doi.org/10.1139/b92-062.
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The phytogeographic patterns displayed by the 550 rare vascular plant taxa in Ontario, including 349 that are rare nationally, are correlated with counties, site regions, and floristic provinces. Rare taxa are concentrated in southwestern Ontario decreasing northward, with secondary concentrations along the Hudson Bay coast. Rare taxa in Ontario are predominantly peripheral taxa, which have their main ranges outside of Ontario. Many of these taxa, however, have a high Canadian conservation priority because they are also at risk in adjacent states or provinces. Rare taxa with Appalachian and Coastal Plain affinities are most common in southwestern Ontario. Arctic and boreal affinities predominate in Northern Ontario. These patterns are correlated with temperature and moisture parameters, which are incorporated with the Hills' site regions classification. Most high conservation priority taxa occur in the Carolinian region, the most highly settled and most highly agriculturalized part of the province. There is an urgent need for conservation of the remaining forest and wetlands in this region. The fragmentary ecosystems still remaining must be protected from further development. There is a need to study the correlation of rare plant occurrences with existing parks and reserves throughout the province to facilitate the identification of priority regions for protection. Key words: rare plants, phytogeography, conservation, Ontario.
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Karmanov, Viktor Nikolayevich, Nadezhda Gennadyevna Nedomolkina, and Andrey Fyodorovich Melnichuk. "Modern concepts of Neolithic cultures in northeastern Europe." Samara Journal of Science 8, no. 2 (April 1, 2019): 159–71. http://dx.doi.org/10.17816/snv201982211.
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The authors summarize and systematize data on Neolithic cultures in northeastern Europe. It is a modern territory of the Komi Republic, the northern part of the Perm Territory, the Vologda and Arkhangelsk Regions, and the Nenets Autonomous Okrug. Based on the critical analysis of evidences, their analysis and interpretation, the authors present their views on the features of the formation, development and fate of the Neolithic cultures of the region. It has been established that the studied region contains northern and northeastern provinces of the famous cultures of the early and middle Neolithic of Eastern Europe: Verkhnevolzhskaya, Kamskaya, Lyalovskaya and Kargopolskaya. In addition, fragments of some cultures were identified. Their initial areas of formation are not yet reliably determined. They are represented by early Neolithic sites such as Dutovo 1, Chernoborskaya III, Enty IА and Chyornaya Vadya. Some types of pottery without a specific context document the presence of population groups in northeastern Europe whose status has not been defined yet. The authors suggest that the formation of Neolithic cultures in the region is associated with the search for undeveloped feeding areas, their development and short-term exploitation by small groups of people commensurate with elementary or unified families. Until the Eneolithic in the greater territory of northeastern Europe the conditions for long-term residence of the Neolithic population were absent as well as the formation of local traditions.
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Wahlstreöm, Rutger. "The North Gower, Ontario, Earthquake of 11 October 1983: Focal Mechanism and Aftershocks." Seismological Research Letters 58, no. 3 (July 1, 1987): 65–72. http://dx.doi.org/10.1785/gssrl.58.3.65.
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Abstract An earthquake near Ottawa (45.20°N, 75.75°W, focal depth 12 km) of unusually large size for the region's seisrhicity (mb(Lg) = 4.1) provided good P-wave first-motion data for a focal-mechanism solution. The maximum intensity was V(MM) and the area of perceptibility in Canada about 80,000 km2. The first and largest recorded aftershock occurred nine minutes after the main shock with magnitude mb(Lg) = 1.7. Two further small aftershocks ware recorded by a field network. The mechanism is thrust faulting with a predominantly horizontal pressure axis trending 154°. Thrust mechanisms have been found for other earthquakes in southeastern Canada and the northeastern U.S., but orientations of their stress axes are different, and so the North Gower earthquake may reflect a local and not a regional stress field. The nodal planes have strike 71°, dip 75°, and strike 221°, dip 17°. The spatial distribution of aftershocks suggests the gently-dipping nodal plane could be the fault plane. There is uncertainty about the seismotectonics of the region, and the orientation of neither nodal plane correlates with known geological features. More earthquake fault-plane solutions are required to interpret the seismotectonics and the stress regime.
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Nezirović, Senada. "CLIMATIC TOURISM MOTIVES AND THEIR ROLE IN SPATIAL ORGANIZATION AND TOURISM DEVELOPMENT OF THE NORTH-EASTERN REGION OF BOSNIA." International Journal of Research -GRANTHAALAYAH 6, no. 7 (July 31, 2018): 52–64. http://dx.doi.org/10.29121/granthaalayah.v6.i7.2018.1283.
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The climate of the north-eastern Bosnia belongs to the moderate continental type, where there are certain specifics caused by relief, geographic position, proximity to the Pannonian basin, mountain central massif and the distance from the Adriatic Sea. The area of northeastern Bosnia has similar climate characteristics as well as the countries of Central Europe: warm summers, cold winters, chilly autumn and rainy spirng. The climate of northeastern Bosnia is influenced by a series of factors that determine all of its elements: air temperature, humidity, air pressure and sunshine duration.
This paper analyzes the basic climatic elements of the Northeastern Bosnia region. During the field research, the emphasis was placed on climate tourism motives and their role in spatial organization and development of tourism. On the basis of a shorter analysis, we tried to distinguish tourist areas and facilities with the dominant function of tourism, in which tourism can become a dominant economic activity.
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Miller, E. Willard. "The Anthracite Region of Northeastern Pennsylvania: An Economy in Transition." Journal of Geography 88, no. 5 (September 1989): 167–71. http://dx.doi.org/10.1080/00221348908979575.
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Podciborski, Tomasz, Aleksandra Zienkiewicz, and Agnieszka Dawidowicz. "The dynamics of the air transport development in the Warmia and Mazury region." Acta Scientiarum Polonorum Administratio Locorum 21, no. 4 (December 14, 2022): 573–86. http://dx.doi.org/10.31648/aspal.8243.
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Motives: Regional passenger airports are an important component of a developed transportation system that reflects the broader development of the region and the country. Due to the small number of studies examining air transport at the regional micro-scale, it is important to carry out a diagnostic of this mode of transport to determine the possibility of regional development. The article presents the reasons for the creation, stages of construction and transformation of selected airports of northeastern Poland. Aim: The main aim of the study was to determine the impact of the COVID-19 pandemic on the dynamics of air transport development in the area of northeastern Poland. The entire air transport system in the region was analyzed with a detailed inventory of the largest airport Olsztyn-Mazury. Results: As a result of the study, data on the number of passengers and directions of travel for the past six years were compared. It was determined that Olsztyn-Mazury Airport has a significant development potential, providing an opportunity to rebuild passenger air traffic in Warmia and Mazury hampered by the effects of the COVID-19 virus pandemic.
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Dad, Soufiane, and Tamara Benabdesselam. "Regional frequency analysis of extreme precipitation in northeastern Algeria." Journal of Water and Land Development 39, no. 1 (December 1, 2018): 27–37. http://dx.doi.org/10.2478/jwld-2018-0056.
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AbstractThe aim of the study is to improve the quality of estimating of the annual maximum daily precipitations of the northeastern area of Algeria. The regional frequency analysis based on L-moments was used. The investigated area is represented by 58 measuring stations. The main stages of the study were the definition of homogeneous regions and the identification of the regional distribution. It has been defined that the study region is homogeneous in terms of L-moments ratios despite the climatic differences within the region. Among the different tested distributions; the generalised extreme value (GEV) distribution has been identified as the most appropriate regional distribution for modelling precipitation in the region. The growth curve, derived from the regional distribution, was established. Therefore, to estimate the different return period’s precipitation quantiles in a given site of the region, the mean precipitation of the site has to be multiplied by the corresponding regional quantile (growth factor). Comparison of the quantiles estimated from the regional and at-site frequency analysis showed that in the majority of stations (82.8%) at-site model underestimates the quantiles having high return periods.
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Dasgupta, Jyotirindra. "Community, Authenticity, and Autonomy: Insurgence and Institutional Development in India's Northeast." Journal of Asian Studies 56, no. 2 (May 1997): 345–70. http://dx.doi.org/10.2307/2646241.
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Reports from india's northeastern states—Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, and Tripura—rarely deal with the positive aspects of their institutional development processes. The national media mainly concentrates on the disquieting stories of unrest, insurgence, and violence. The negative portrait of this region offered by both the press and scholarly studies in India and abroad must be distressing for the people of the Northeastern region.This paper suggests that an excessive preoccupation with violence and a narrow reading of the implications of insurgent violence on the part of the observers are responsible for a substantial misunderstanding of the Northeastern political processes. As a result, the positive aspects of community formation, the linkage of communities in wider political institutions as parts of the Northeastern administration and representative systems, and the contribution of these processes to the national systems remain largely unexplored. The history of insurgence is rarely narrated in the context of an equally long history of peace, social collaboration, political reconciliation, democratic participation, and innovations in institution-building and sustenance. Even the received narrative of violence is deeply flawed due to its frequent inability to attend to the possible rationality of forced desperation, and its insensitivity to the long-term constructive implications of many anti-authority struggles.
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Sharma, Chandan Kumar. "Dam, ‘Development’ and Popular Resistance in Northeast India." Sociological Bulletin 67, no. 3 (September 24, 2018): 317–33. http://dx.doi.org/10.1177/0038022918796942.
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The policy of the Government of India to turn its northeastern region, especially Arunachal Pradesh, into ‘India’s Future Powerhouse’ by generating massive hydel power from almost all its perennial rivers has led to widespread protests in the region. These protests are based on the apprehension that this new ‘development’ initiative of the government would spell disaster to the river ecosystem and the livelihood and cultural heritage of the people of the region. The protests are also informed by the fact that the region is seismically very active, geologically fragile and ecologically sensitive. The conflict between the government’s new logic of development in a region considered as a distant security frontier and the local people’s apprehensions and questions about the character of this development has unfolded a complex discourse entangled in the interplay of issues concerning development, environment, people’s rights and rule of law.
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Larchevêque, Marie, Guy R. Larocque, Francine Tremblay, Stéphane Gaussiran, Robert Boutin, Suzanne Brais, Jean Beaulieu, Gaëtan Daoust, and Pierre Périnet. "Juvenile productivity of five hybrid poplar clones and 20 genetically improved white and Norway spruces in boreal clay-belt of Quebec, Canada." Forestry Chronicle 86, no. 2 (April 1, 2010): 225–33. http://dx.doi.org/10.5558/tfc86225-2.
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Similar to other boreal regions of Canada, northwestern Quebec has abundant lands available for the establishment of high-productivity plantations. However, few genetically improved species have been tested for this region. Three sites were planted with five hybrid poplar clones; 19 families of white spruce (Picea glauca [Moench] Voss) of southern Ontario and Quebec origins; 20 families of Norway spruce (Picea abies [L.] Karst.) of northeastern European origins; and a local seed source of white spruce. Survival and productivity were evaluated during their first three growing seasons. Survival rate was high for all selected plant material. For white spruce, genetically improved families were more productive than the local seed source. The use of exotics (Norway spruce or P. maximowiczii hybrids) did not confer any growth benefit at this early stage. Key words: survival, height, root collar diameter, field trial, exotic and native species
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Proceviat, Sarah K., Frank F. Mallory, and W. James Rettie. "Estimation of arboreal lichen biomass available to woodland caribou in Hudson Bay lowland black spruce sites." Rangifer 23, no. 5 (April 1, 2003): 95. http://dx.doi.org/10.7557/2.23.5.1687.
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An arboreal lichen index to be utilized in assessing woodland caribou habitat throughout northeastern Ontario was developed. The "index" was comprised of 5 classes, which differentiated arboreal lichen biomass on black spruce trees, ranging from maximal quantities of arboreal lichen (class 5) to minimal amounts of arboreal lichen (class 1). This arboreal lichen index was subsequently used to estimate the biomass of arboreal lichen available to woodland caribou on lowland black spruce sites ranging in age from 1 year to 150 years post-harvest. A total of 39 sites were assessed and significant differences in arboreal lichen biomass were found, with a positive linear relationship between arboreal lichen biomass and forest age. It is proposed that the index be utilized by government and industry as a means of assessing the suitability of lowland black spruce habitat for woodland caribou in this region.
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Sherrington, Mark. "Biodiversity assessment in the Oil Sands region, northeastern Alberta, Canada." Impact Assessment and Project Appraisal 23, no. 1 (March 2005): 73–81. http://dx.doi.org/10.3152/147154605781765715.
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Katzenberg, M. Anne, Henry P. Schwarcz, Martin Knyf, and F. Jerome Melbye. "Stable Isotope Evidence for Maize Horticulture and Paleodiet in Southern Ontario, Canada." American Antiquity 60, no. 2 (April 1995): 335–50. http://dx.doi.org/10.2307/282144.
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This paper reports new data on stable carbon and nitrogen isotopes obtained from human skeletal remains found at six prehistoric sites dating between A.D. 400 and 1500 in southern Ontario. Analyses examine more closely the timing and intensity of maize adoption and the importance of animal protein in the diet, adding to earlier work in the region by the same authors (Schwarcz et al. 1985). As a result of changes in preferred methods of extracting bone collagen, a comparison of extraction methods is presented. Results indicate a gradual increase in the importance of maize in the diet over a period of approximately 600 years, from A.D. 650 to 1250, and little change in nitrogen isotope values during the same period. The results are considered within the larger temporal and geographical framework of eastern North America, drawing on stable isotope results from the published literature. Both paleobotanical and isotope data indicate marked differences in the timing and intensity of maize utilization in different regions of northeastern North America. Nitrogen isotope values decrease after around A.D. 1350, suggesting a decrease in animal protein in the diet. Stable isotope data provide one source of evidence for changes in human subsistence patterns and their interpretation relies on complementary data from sources such as the analysis of faunal and botanical remains, settlement patterns, and material culture.