Thirty psychiatric patients (aged 18-29) who had attempted suicide were compared with 2 matched control groups, one consisting of nonsuicidal psychiatric patients and the other of normal subjects, for personality patterns, parental rearing practices and personal loss before the age of 15. The instruments used were the Eysenck Personality Questionnaire (EPQ), the Lazare-Klerman-Armor Trait Scale (LKAS), the Narcissistic Personality Inventory (NPI) and the Own Memories of Child-Rearing Experiences (EMBU). Patients admitted for suicide attempts differed significantly from normals on several personality dimensions, whereas suicide attempters did not have personality characteristics that made them substantially different from nonsuicidal psychiatric controls. The suicide attempters had experienced significantly more negative and less positive parental rearing factors than normals, but no difference was found between suicidal and nonsuicidal patients for own memories of parental rearing patterns. Parental loss due to divorce had occurred significantly more often among suicide attempters than among both nonsuicidal psychiatric patients and normals.
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AbstractThe timing of annual events such as reproduction is a critical component of how free-living organisms respond to ongoing climate change. This may be especially true in the Arctic, which is disproportionally impacted by climate warming. Here, we show that Arctic seabirds responded to climate change by moving the start of their reproduction earlier, coincident with an advancing onset of spring and that their response is phylogenetically and spatially structured. The phylogenetic signal is likely driven by seabird foraging behavior. Surface-feeding species advanced their reproduction in the last 35 years while diving species showed remarkably stable breeding timing. The earlier reproduction for Arctic surface-feeding birds was significant in the Pacific only, where spring advancement was most pronounced. In both the Atlantic and Pacific, seabirds with a long breeding season showed a greater response to the advancement of spring than seabirds with a short breeding season. Our results
Seabirds are undergoing drastic declines globally and spend the non-breeding season at sea, making it challenging to study the drivers of their survival. Harsh weather and changes in climate conditions can have large impacts on seabird population dynamics through increased mortality. The intensity and persistence of extreme events are forecasted to increase with global warming. As shared conditions can induce population synchrony, multi-population studies of key demographic parameters are imperative to explore the influence of climate change. We used long-term mark-recapture data and position data to determine non-breeding stop-over areas of 5 Atlantic puffin (Fratercula arctica) populations over a latitudinal gradient in the Northeast Atlantic (56°11’-70°23’N). We investigated synchrony in adult survival in relation to shared stop-over areas. We quantified effects of extreme extra-tropical cyclones (ETCs) specific to populations’ stop-over areas and the North Atlantic Oscillation on adult survival. Populations with overlapping stop-over areas exhibited temporal synchrony in survival rates. Winter ETCs negatively influenced survival in 1 population, which was the one most exposed to extreme weather, but did not directly influence adult survival in the other 4 populations. Synchrony among populations with shared stop-over areas highlights the importance of these areas for adult survival, a key life-history rate. However, extreme weather was not identified as a driving factor for the majority of study populations. This suggests other factors in these areas, likely related to bottom-up trophic interactions, as environmental drivers of synchrony in the survival of Atlantic puffins.
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