Sources of Variation in Defensive Traits in Quercus Species: Insights Gained from Research Spanning Individuals to Communities and Local- to Broad-Scale Factors

2020 ◽  
pp. 81-97
Author(s):  
Xoaquín Moreira ◽  
Luis Abdala-Roberts
Keyword(s):  
Scale Factors ◽  
Quercus Species ◽  
Sources Of Variation ◽  
Broad Scale

Multi-scale assessment of greater sage-grouse fence collision as a function of site and broad scale factors

2012 ◽  
Vol 76 (7) ◽  
pp. 1370-1380 ◽  
Author(s):  
Bryan S. Stevens ◽  
John W. Connelly ◽  
Kerry P. Reese
Keyword(s):  
Sage Grouse ◽  
Multi Scale ◽  
Scale Factors ◽  
Scale Assessment ◽  
Broad Scale

Broad-scale factors influencing the biodiversity of coastal benthic communities of the Ross Sea

2006 ◽  
Vol 53 (8-10) ◽  
pp. 959-971 ◽  
Author(s):  
Simon Thrush ◽  
Paul Dayton ◽  
Riccardo Cattaneo-Vietti ◽  
Mariachiara Chiantore ◽  
Vonda Cummings ◽  
...  
Keyword(s):  
Ross Sea ◽  
Benthic Communities ◽  
Scale Factors ◽  
Factors Influencing ◽  
Broad Scale

scholarly journals Species delimitation in the genus Quercus (Fagaceae)

2020 ◽  
Vol 99 (1) ◽  
pp. 1-12
Author(s):  
Susana Valencia-A.
Keyword(s):  
Species Concept ◽  
Multicriteria Analysis ◽  
Integrative Taxonomy ◽  
Species Concepts ◽  
Use Of Data ◽  
Species Complexes ◽  
Quercus Species ◽  
Sources Of Variation ◽  
Model Clade ◽  
Hybridization And Introgression

Background: Quercus is recognized as a taxonomically complex genus, but also as a model clade in many important fields in biology, such that a good recognition of its species is necessary. The chosen species concept to use in Quercus will determine the empirical criteria used to recognize them, which will impact several areas of knowledge. Questions: What are the main sources of variation that hinder the delimitation of species in Quercus? What species concepts we use explicitly to recognize species in Quercus? What is the advantage of using different empirical criteria both integrally and simultaneously in delimitation of species of oaks? Studied species: Species of Quercus Method: Bibliographic review of the main sources of variation in Quercus, and the species concepts, specifically those used in Quercus. Results: Plasticity, convergence, hybridization and introgression, and incomplete divergence were identified as the main sources of variation in oaks. Taxonomic and ecological species concepts are those mainly and traditionally used in Quercus. Syngameons are important to know and understand the biology and evolution of Quercus species. These systems indicate that there are preserved genes that provide coherence and morphologic, ecologic and genetic identity to species, even if hybridization, backcrossing and introgression occur. Conclusions: Preserved genes that provide coherence to species, suggest using taxonomic, ecologic and genetic concepts to delimit problematic species in species complexes in Quercus. The simultaneous use of data that these concepts support (multicriteria analysis), will give more confidence to get closer to the nature of the species and build an integrative taxonomy.

1239 Sources of variation in dry matter content and particle size distribution in total mixed rations in dairy farms in Argentina

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 596-597
Author(s):  
P. Turiello ◽  
M. Ruiz de Huidobro ◽  
F. Bargo ◽  
A. Larriestra ◽  
A. Relling
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Dry Matter ◽  
Dairy Farms ◽  
Matter Content ◽  
Dry Matter Content ◽  
Sources Of Variation

Genetic Sources of Variation in the Gestation Length of the Horse

1951 ◽  
Vol 10 (4) ◽  
pp. 797-806 ◽  
Author(s):  
W. C. Rollins ◽  
C. E. Howell
Keyword(s):  
Gestation Length ◽  
Sources Of Variation

It Takes Two to Make an Interview Go Right: Round-Robin Designs to Demonstrate Interviewer and Witness Variance

2018 ◽  
Author(s):  
Charlotte A. Hudson ◽  
Liam Satchell ◽  
Nicole M Adams-Quackenbush
Keyword(s):  
Grain Size ◽  
Individual Differences ◽  
Individual Difference ◽  
Round Robin ◽  
Investigative Interviews ◽  
Sources Of Variation ◽  
Interview Performance ◽  
Report Accuracy ◽  
Statistical Demonstration

Purpose: Investigative interviews are complex, dyadic, activities typically studied by focusing on developing techniques to improve witness performance. However, in field settings, interviewers are known to vary in their presentation of good interviewing practice. Thus, it is important to conduct research reflective of complex idiosyncrasies in witnesses, interviewers and unique pairings of both. This study explores such sources of variation in an by making use of a 'round-robin' design. Such methodology allows the statistical demonstration of individual difference and unique partner-generated variance in interview performance. Methods: In our study, a total of 45 witnesses were questioned about five real crime videos. After witnessing each event, witnesses were interviewed by a different interviewer (or a computer self-administered interview). In total, nine 'rounds' of interviews occurred, with five new witnesses being interviewed in the same five interview settings (resulting in 225 interviews). After each interview both interviewers and witnesses were asked to complete subjective interview experience ratings. The quality (grain size) and quantity of information in the statements was coded to index witness report accuracy. Results: Principally, the results demonstrate the degree to which witnesses and interviewers affect statement quality, and highlight the influence of unique interviewer-witness pairs. (Participant personality and interviewer behaviour were also analysed, but with limited effects). Conclusion: This study presents the useful round-robin methodology for studying interviewer-witness behaviour. Whilst the current personality and behavioural measures do not account for these individual differences, we advocate this methodology be adopted more widely to better understand interview performance.

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