scholarly journals Forest population structure in the southeastern United States

1976 ◽  
Author(s):  
D. C. West ◽  
F. G. Goff ◽  
W. C. Johnson
Keyword(s):  
United States ◽  
Population Structure ◽  
Southeastern United States

scholarly journals Spatial Genetic Structure and Population Dynamics of Gummy Stem Blight Fungi Within and Among Watermelon Fields in the Southeastern United States

2016 ◽  
Vol 106 (8) ◽  
pp. 900-908 ◽  
Author(s):  
Hao-Xi Li ◽  
Marin Talbot Brewer
Keyword(s):  
United States ◽  
Population Structure ◽  
Genetic Structure ◽  
Spatial Genetic Structure ◽  
Southeastern United States ◽  
Principal Coordinates Analysis ◽  
Stem Blight ◽  
Gummy Stem Blight ◽  
Principal Coordinates ◽  
Regional Population

The epidemiology of gummy stem blight (GSB) of cucurbits, particularly the sources of inoculum for epidemics, and the regional population genetic structure of the causal fungi Stagonosporopsis cucurbitacearum (syn. Didymella bryoniae), S. citrulli, and S. caricae are not well understood. Our goal was to better understand the population structure and fine-scale spatial genetic structure of Stagonosporopsis spp. in the southeastern United States. Overall, 528 isolates collected from nine fields in 2012, 2013, and 2014 were genotyped with 16 microsatellite markers. In 2013, S. caricae was first detected in the southeastern United States; however, S. citrulli remained the dominant species, representing 96.4% of the isolates. Principal coordinates analysis, discriminant analysis of principle components, and analysis of molecular variance indicated that most populations of S. citrulli were genotypically diverse, yet dominated by widely distributed clones that contributed to regional population structure. Spatial genetic structure resulting from aggregation of clonal genotypes at distances of less than 10 meters was detected within two of three fields in which isolate location was recorded. Studies on the epidemiological and fitness differences between S. citrulli and S. caricae and of prevalent and widespread clones will provide insight into the population structure and species dynamics observed in GSB epidemics.

scholarly journals Genetically determined population structure of hogfish (Labridae: Lachnolaimus maximus) in the southeastern United States

2015 ◽  
Vol 113 (4) ◽  
pp. 442-455 ◽  
Author(s):  
Seifu Seyoum ◽  
Angela B. Collins ◽  
Cecilia Puchulutegui ◽  
Richard S. McBride ◽  
Michael D. Tringali
Keyword(s):  
United States ◽  
Population Structure ◽  
Southeastern United States ◽  
Genetically Determined

Does Enhancing Mind Perception Affect Conspiracy Belief?

2019 ◽  
Author(s):  
Jorge Noguera
Keyword(s):  
United States ◽  
Southeastern United States ◽  
Social Discourse ◽  
Psychological Processes ◽  
Social Psychological ◽  
Conspiracy Theories ◽  
Mind Perception ◽  
Mixed Anova ◽  
Interaction Term ◽  
The Mind

This study was conducted to determine the effectiveness of a novel mind perception manipulation. Mind perception is currently theorized to be an essential aspect of a number of human social psychological processes. Thus, a successful manipulation would allow for the causal study of those processes. This manipulation was created in an attempt to explore the downstream impact of mind perception on the endorsement of conspiracy theories. Conspiracy theories are steadily becoming more and more prominent in social discourse. Endorsement of conspiracy theories are beginning to show real world ramifications such as a danger to human health (e.g., in the anti-vaccination movement). A sample of college students (valid N = 53) from a large rural institution in the southeastern United States participated for course credit. These participants completed a mind perception pretest, were randomly assigned to either the manipulation in question (in which participants are asked to consider the ‘mind’ of several targets and write their thoughts about them) or the control condition, and then they completed a posttest. The mixed ANOVA revealed that the interaction term between Time and Condition was not significant. Because the manipulation did not work, other analyses were aborted, in accord with the pre-registration. My Discussion focuses on the procedures and potential shortcomings of this manipulation, in an effort to lay the groundwork for a successful one.

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