Despotism and Risk of Infanticide Influence Grizzly Bear Den-Site Selection

Given documented social dominance and intraspecific predation in bear populations, the ideal despotic distribution model and sex hypothesis of sexual segregation predict adult female grizzly bears (Ursus arctos) will avoid areas occupied by adult males to reduce risk of infanticide. Under ideal despotic distribution, juveniles should similarly avoid adult males to reduce predation risk. Den-site selection and use is an important component of grizzly bear ecology and may be influenced by multiple factors, including risk from conspecifics. To test the role of predation risk and the sex hypothesis of sexual segregation, we compared adult female (n = 142), adult male (n = 36), and juvenile (n = 35) den locations in Denali National Park and Preserve, Alaska, USA. We measured elevation, aspect, slope, and dominant land cover for each den site, and used maximum entropy modeling to determine which variables best predicted den sites. We identified the global model as the best-fitting model for adult female (area under curve (AUC) = 0.926) and elevation as the best predictive variable for adult male (AUC = 0.880) den sites. The model containing land cover and elevation best-predicted juvenile (AUC = 0.841) den sites. Adult females spatially segregated from adult males, with dens characterized by higher elevations ( = 1,412 m, SE = 52) and steeper slopes ( = 21.9°, SE = 1.1) than adult male (elevation:  = 1,209 m, SE = 76; slope:  = 15.6°, SE = 1.9) den sites. Juveniles used a broad range of landscape attributes but did not avoid adult male denning areas. Observed spatial segregation by adult females supports the sex hypothesis of sexual segregation and we suggest is a mechanism to reduce risk of infanticide. Den site selection of adult males is likely related to distribution of food resources during spring

Are norms enough? the role of collaborative norms in promoting organizational knowledge seeking

10.1057/palgrave.ejis.3000630European Journal of Information Systems154357-36

Attitude studies by the IAEA/IIASA risk assessment group

We presented a case study of an empirical investigation using the Fishbein attitude model to reveal the underlying dimensions of people's perception of nuclear energy. We compared the belief structure of each sample, tried to reveal the most significant factors that influence the general attitudinal commitment. and searched for major differences between the three nations

The Causes and Consequences of Job-Related Stress among Prosecutors

Despite a growing body of literature documenting work stress among employees in various fields, there is a dearth of research that explicitly assesses the impact of different aspects of prosecutors' working conditions on individual prosecutors and their organizations. Drawing on a sample of prosecutors in a southern state in the U.S., we first used OLS regression to examine which work-related stressors are important in predicting their levels of work stress, job satisfaction, and turnover intention. Using path analysis, we then explored the links between these stressors and a set of proposed mediating and outcome variables. We also conducted unstructured in-depth interviews with a subset of the sample to supplement and further illustrate the observed patterns. While job demands and organizational support play the most important roles in explaining the work stress of prosecutors, they do not have direct impact on the prosecutor's commitment to the job. The roles played by psychological and emotional stressors are found to be negligible. Job-related stressors do not lead to turnover intention directly but indirectly through work stress and job satisfaction with a notable exception of the public/media stressor. This study provides a scientifically-based perspective regarding which working conditions should be addressed to maintain healthy and productive working environments among prosecutors.N