scholarly journals Towards a typology of terrorism involvement: A behavioral differentiation of violent extremist offenders.

2018 ◽  
Vol 5 (2) ◽  
pp. 84-102 ◽  
Author(s):  
John Horgan ◽  
Neil Shortland ◽  
Suzzette Abbasciano
Keyword(s):  
Behavioral Differentiation

scholarly journals The diversity of Leadership roles in the context of behavioral complexity theory and its impact on leadership effectiveness

2018 ◽  
Vol 2 (2) ◽  
pp. 255-294
Author(s):  
Saleh Abdul Rida Rashid ◽  
Amer Ali Hussein Al Atawi ◽  
Saddam Kadhim Al Khozai
Keyword(s):  
Structural Equation ◽  
Leadership Effectiveness ◽  
Hypothesis Test ◽  
Two Dimensions ◽  
Equation Modeling ◽  
Leadership Roles ◽  
Behavioral Repertoire ◽  
Behavioral Complexity ◽  
Behavioral Differentiation ◽  
The University

This research aims to examine the nature of the relationship between the various leadership roles and the effectiveness of leadership according to the perspective of the theory of behavioral complexity. The faculty at the University of Qadisiyahwas selected to test the hypotheses of research and to verify the objectives. The authors distributed the questionnaire to a sample of (165)individualsworking at different faculties of the university. The behavioral complexity variable consists of two dimensions, behavioral repertoire and behavioral differentiation. The variable of leadership effectiveness is treated asa single dimension variable. The study hypothesized that there is a positive relationship between the behavioral complexity and leadership effectiveness ,In other words , the educational leaders who use a variety of different roles will achieve the highest level of effectiveness. A variety of statistical tools were used to present the statistical description and hypothesis test, namely mean, standard deviation, simple correlation coefficient,andconfirmatory factor analysis , and structural equation modeling. The results reflected the validity of the research hypotheses , and in light of that a set of conclusions and recommendations were formulated

Light intensity as a factor in the choice of an oviposition site by Drosophila pseudoobscura and Drosophila persimilis

1983 ◽  
Vol 25 (4) ◽  
pp. 370-377 ◽  
Author(s):  
Dennis J. Wogaman ◽  
Marvin B. Seiger
Keyword(s):  
Light Intensity ◽  
Genetic Variability ◽  
Sibling Species ◽  
Light Response ◽  
Drosophila Pseudoobscura ◽  
Isofemale Lines ◽  
Sympatric Populations ◽  
Allopatric Populations ◽  
Behavioral Differentiation ◽  
Drosophila Persimilis

Light preferences for ovipositing of the sibling species Drosophila pseudoobscura and D. persimilis were measured in a multichoice chamber. Behavioral differentiation was found among sympatric populations of D. pseudoobscura and D. persimilis and between allopatric populations of D. pseudoobscura. Differences among isofemale lines within populations indicated genetic variability for the behavior. Both D. pseudoobscura populations were less fecund in a uniform light environment than in the multichoice environment while D. persimilis showed no difference in fecundity in the two environments. The patterns for general photoresponse and ovipositional light response were shown to be different for each population. Thus, the motivation to oviposit may affect photopreference differentially in each population.

Colony defense and behavioral differentiation in the eusocial shrimp Synalpheus regalis

2002 ◽  
Vol 51 (5) ◽  
pp. 488-495 ◽  
Author(s):  
Emmett Duffy ◽  
Cheryl Morrison ◽  
Kenneth Macdonald
Keyword(s):  
Colony Defense ◽  
Behavioral Differentiation

scholarly journals Genomic divergence in allopatric Northern Cardinals of the North American warm deserts is associated with behavioral differentiation

2018 ◽  
Author(s):  
Kaiya L. Provost ◽  
William M. Mauck ◽  
Brian Tilston Smith
Keyword(s):  
Gene Flow ◽  
Sonoran Desert ◽  
Demographic History ◽  
Isolation With Migration ◽  
Song Recognition ◽  
Behavioral Isolation ◽  
The North ◽  
Genome Wide ◽  
Behavioral Differentiation ◽  
Northern Cardinals

ABSTRACTBiogeographic barriers are thought to be important in initiating speciation through geographic isolation, but they rarely indiscriminately and completely reduce gene flow across the entire community. Understanding which species’ attributes regulate a barrier could help elucidate how speciation is initiated. Here, we investigated the association of behavioral isolation on population differentiation in Northern Cardinals (Cardinalis cardinalis) distributed across the Cochise Filter Barrier, a region of transitional habitat which separates the Sonoran and Chihuahuan deserts. Using genome-wide markers, we modeled demographic history by fitting the data to isolation and isolation-with-migration models. The best-fit model indicated that desert populations diverged in the mid-Pleistocene and there has been historically low, unidirectional gene flow into the Sonoran Desert. We then tested song recognition using reciprocal call-broadcast experiments to compare song recognition between deserts, controlling for song dialect changes within deserts. We found that male Northern Cardinals in both deserts were most aggressive to local songs and failed to recognize across-barrier songs. A correlation of genomic differentiation despite historic introgression and strong song discrimination is consistent with a model where speciation is initiated across a barrier and maintained by behavioral isolation.

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