scholarly journals The Armstrongs of Manorhamilton and West Gwillimbury: A Study of Settlement and Migration Patterns of Irish Immigrants to Upper Canada

2018 ◽  
Vol 44 (1) ◽  
pp. 70-109
Author(s):  
Charlotte Neff ◽  
Patricia Matthew
Keyword(s):  
North America ◽  
Upper Canada ◽  
Migration Patterns ◽  
Irish Immigrants ◽  
Large Estate ◽  
And Migration ◽  
Landed Gentry ◽  
Land Transactions

This article considers the land transactions, occupations, and last known residence of three brothers, Protestant landed gentry from Manorhamilton, Leitrim County, Ireland, who arrived in West Gwillimbury, Simcoe County, Upper Canada (Ontario) in 1819, 1822, and 1825, and of their sons, sons-in-law, and grandchildren. At least one aspired to a large estate, but none acquired more land than they needed for themselves and their sons. Most of their children (all born in Ireland) or their husbands farmed in Ontario, most in Simcoe County, but their grandchildren dispersed widely across North America and less than half remained in farming.

Wanted? Coming to the Canadas, 1798–1830

2020 ◽  
pp. 47-72
Author(s):  
Jane G.V. McGaughey
Keyword(s):  
North America ◽  
Case Studies ◽  
War Of 1812 ◽  
Upper Canada ◽  
Irish Immigrants ◽  
British North America ◽  
The North ◽  
Sectarian Conflict

This chapter explores themes of war, migration, gender, and sectarian conflict between 1798 and 1830. It questions how the 1798 Irish Rising factored into some emigrants’ motivations for coming to Canada in the decades that followed. The Rising also affected how these new arrivals were associated with presumptions of Irish aggression and disloyalty. Many United Empire Loyalists in Upper Canada expressed particular concerns about the violent tendencies of new Irish immigrants and the importation of Irish sectarian conflict to British North America. The chapter then examines the influence of James and Alexander Buchanan, brothers from the north of Ireland in the colonial establishment who decided which Irish immigrants would be most welcome in the Canadas. The chapter closes with the case studies of the Richards and Tackaberry families on their journeys from Co. Wexford to Upper Canada after the War of 1812.

scholarly journals Evidence of the role of free-living birds as disseminators of Salmonella spp.

2020 ◽  
Vol 87 ◽  
Author(s):  
Antonio Jackson Forte Beleza ◽  
William Cardoso Maciel ◽  
Elisângela de Souza Lopes ◽  
Átilla Holanda de Albuquerque ◽  
Arianne Silva Carreira ◽  
...  
Keyword(s):  
North America ◽  
Domestic Animals ◽  
Wild Birds ◽  
Salmonella Spp ◽  
Free Living ◽  
Migration Patterns ◽  
Environment Exposure ◽  
Geographic Regions ◽  
And Migration

ABSTRACT This study aimed to review aspects of Salmonella spp. in free-living birds and their potential as disseminators for domestic animals, man, and the environment. Isolation of Salmonella spp. have been reported in several species of wild birds from Passeridae and Fringillidae, among other avian families, captured in countries of North America and Europe, where Salmonella ser. Typhimurium is the most frequently reported serotype. The presence of pathogens, including Salmonella, may be influenced by several factors, such as diet, environment, exposure to antibiotics, infection by pathogenic organisms and migration patterns. Researches with wild birds that live in urbanized environment are important, considering that birds may participate in the transmission of zoonotic pathogens, which are more prevalent in cities due to the human activity. Based on the information collected, this article concludes that wild birds are still important disseminators of pathogens in several geographic regions and may affect man, domestic animals, and other birds.

Population trends and migration patterns in the critically endangered Yellow-breasted Bunting (Emberiza aureola) in the Republic of Korea

2020 ◽  
Vol 27 (1) ◽  
pp. 56-63
Author(s):  
Jong-Gil Park ◽  
Chang-uk Park ◽  
Kyoung-Soon Jin ◽  
Yang-Mo Kim ◽  
Hee-Young Kim ◽  
...  
Keyword(s):  
Population Trends ◽  
Critically Endangered ◽  
Republic Of Korea ◽  
Migration Patterns ◽  
The Republic ◽  
And Migration

scholarly journals Spatial and space-time correlations in systems of subpopulations with genetic drift and migration.

Genetics ◽  
1993 ◽  
Vol 133 (3) ◽  
pp. 711-727
Author(s):  
B K Epperson
Keyword(s):  
Population Genetics ◽  
Time Correlation ◽  
Space Time ◽  
Spatial Correlations ◽  
Gene Frequencies ◽  
Migration Patterns ◽  
Migration Rates ◽  
Space And Time ◽  
Time Correlations ◽  
And Migration

Abstract The geographic distribution of genetic variation is an important theoretical and experimental component of population genetics. Previous characterizations of genetic structure of populations have used measures of spatial variance and spatial correlations. Yet a full understanding of the causes and consequences of spatial structure requires complete characterization of the underlying space-time system. This paper examines important interactions between processes and spatial structure in systems of subpopulations with migration and drift, by analyzing correlations of gene frequencies over space and time. We develop methods for studying important features of the complete set of space-time correlations of gene frequencies for the first time in population genetics. These methods also provide a new alternative for studying the purely spatial correlations and the variance, for models with general spatial dimensionalities and migration patterns. These results are obtained by employing theorems, previously unused in population genetics, for space-time autoregressive (STAR) stochastic spatial time series. We include results on systems with subpopulation interactions that have time delay lags (temporal orders) greater than one. We use the space-time correlation structure to develop novel estimators for migration rates that are based on space-time data (samples collected over space and time) rather than on purely spatial data, for real systems. We examine the space-time and spatial correlations for some specific stepping stone migration models. One focus is on the effects of anisotropic migration rates. Partial space-time correlation coefficients can be used for identifying migration patterns. Using STAR models, the spatial, space-time, and partial space-time correlations together provide a framework with an unprecedented level of detail for characterizing, predicting and contrasting space-time theoretical distributions of gene frequencies, and for identifying features such as the pattern of migration and estimating migration rates in experimental studies of genetic variation over space and time.

Lake Sturgeon Geographic Range, Distribution, and Migration Patterns in the Saskatchewan River

2014 ◽  
Vol 143 (6) ◽  
pp. 1555-1561 ◽  
Author(s):  
Van Wishingrad ◽  
Meghan K. Carr ◽  
Michael S. Pollock ◽  
Maud C. O. Ferrari ◽  
Douglas P. Chivers
Keyword(s):  
Geographic Range ◽  
Lake Sturgeon ◽  
Migration Patterns ◽  
Range Distribution ◽  
And Migration

Variations in the distribution and migration of centriole duplexes in mitotic PtK2 cells studied by immunofluorescence microscopy

1980 ◽  
Vol 43 (1) ◽  
pp. 177-194 ◽  
Author(s):  
J.E. Aubin ◽  
M. Osborn ◽  
K. Weber
Keyword(s):  
Nuclear Membrane ◽  
Immunofluorescence Microscopy ◽  
Cytoplasmic Microtubule ◽  
Migration Patterns ◽  
Large Variability ◽  
Membrane Breakdown ◽  
Large Populations ◽  
Tubulin Antibodies ◽  
Cytoplasmic Microtubules ◽  
And Migration

The localization and migration of centriole duplexes have been studied in PtK2 cells by indirect immunofluorescence microscopy using specific tubulin antibodies. The study demonstrated the usefulness of the immunofluorescence technique to quantitate studies of centriole migration and concomitant events such as cytoplasmic microtubule breakdown in large populations of cells. Centriole duplex locations in normal and Colcemid-treated interphase populations have been compared with duplex locations in prophase cells. A higher percentage of duplexes were found close to the nucleus in prophase than in interphase cells, but approximately 5% of the duplexes remained in the cytoplasm far removed from the nucleus in prophase and throughout the course of duplex separation. Duplex separation occurred along a wide variety of paths and duplexes did not have to be closely juxtaposed to the nuclear envelope for separation to occur. Some duplexes separated in the cytoplasm with no detectable nuclear attachment, with spindles forming far to the side of the condensing chromosomes. The timing of duplex separation did not always coincide either with chromosome condensation or with nuclear membrane breakdown, and in a small percentage of the cells separation occurred as late as prometaphase. These data suggest that normal spindle formation can occur despite the large variability in initial and final centriole duplex location, their migration patterns, and the timing of the different events. Breakdown of cytoplasmic microtubules began in prophase and progressed until prometaphase; the last cytoplasmic microtubules disappeared soon after the loss of the nuclear membrane.

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