Multidimensional perfectionism and narcissism: Grandiose or vulnerable?

Multidimensional perfectionism is related to grandiose narcissism, with other-oriented perfectionism showing the strongest, most consistent relationships. The relationships with vulnerable narcissism, however, are unclear. Our study investigated how three forms of perfectionism--self-oriented, other-oriented, and socially prescribed perfectionism (Hewitt & Flett, 1991)--are related to narcissistic grandiosity and vulnerability. A sample of 375 university students completed the Narcissistic Personality Inventory (Raskin & Terry, 1988), Hypersensitive Narcissism Scale (Hendin & Cheek, 1997), and Pathological Narcissism Inventory (Pincus et al., 2009) capturing various facets of narcissistic grandiosity and vulnerability. Multiple regressions were conducted controlling for the overlap between the three forms of perfectionism and gender. Other-oriented perfectionism showed unique positive relationships with key facets of grandiose narcissism. In contrast, socially prescribed perfectionism showed positive relationships with all facets of vulnerable narcissism. Self- and other-oriented perfectionism showed positive relationships with individual facets only. Other-oriented perfectionism appears to represent a form of perfectionism predominantly related to narcissistic grandiosity, whereas socially prescribed perfectionism is predominantly related to narcissistic vulnerability. As the first study to examine perfectionism in relation to narcissistic grandiosity and vulnerability, our research both extends and clarifies the nomological network of the perfectionism construct in important ways

Characteristics of Two Self-sustaining Populations of Paddlefish in Northeast Oklahoma

Oklahoma has several self–sustaining populations of paddlefish (Polyodon spathula) that support sport fisheries, including Grand Lake O’ The Cherokees (Grand Lake) and Keystone Lake. The Oklahoma Department of Wildlife Conservation (ODWC) has operated a Paddlefish Research Center (PRC) on Grand Lake since 2008, which has increased communication with paddlefish anglers and provided information about fishery–dependent population trends, suggesting declines in overall fish size. Whether these declines were unique to Grand Lake or indicative of a broader pattern were unknown. Comparing angler harvest and paddlefish population characteristics between these two self–sustaining populations would aid managers in conserving this species in Oklahoma. Thus, I sought to: 1) determine differences in fishing pressure between reservoirs and, 2) estimate and compare characteristics of these two paddlefish populations. Post–season paddlefish angler surveys indicated no significant difference in per–angler effort (days fishing per angler) between the two reservoirs in both 2010 and 2011. However, Grand Lake had significantly higher per–angler harvest. Paddlefish gillnetting data from winter 2010 and 2011 showed no significant difference in relative abundance between the populations although, differences in length frequencies, relative weights, growth and reproductive condition were documented. Mean lengths, relative weights and gonadal fat indices for both male and female paddlefish from Keystone Lake were significantly greater than those from Grand Lake, while gonadosomatic index values were significantly greater for females from Grand Lake.Wildlife Ecolog

Perfectionism in students and positive career planning attitudes

In today's uncertain job market, university students who show positive attitudes in their career planning have an advantage. Yet, we know little what personality characteristics are associated with individual differences in career planning attitudes. The present study examined 177 university students to investigate whether perfectionism (self-oriented, other-oriented, and socially prescribed) predicted students' positive career planning attitudes (career adaptability, career optimism, and perceived knowledge of the job market). Results from multiple regressions showed that perfectionism explained 8-12% variance in career planning attitudes with (a) self-oriented perfectionism positively predicting career adaptability and career optimism, (b) other-oriented perfectionism positively predicting perceived knowledge, and (c) socially prescribed perfectionism negatively predicting career adaptability. The findings suggest that perfectionism is a personality characteristic that may both underpin and undermine students' positive attitudes towards career planning

Optimal Patch-Leaving Behaviour: A Case Study Using The Parasitoid Cotesia rebecula

1. Parasitoids are predicted to spend longer in patches with more hosts, but previous work on Cotesia rubecula (Marshall) has not upheld this prediction. Tests of theoretical predictions may be affected by the definition of patch leaving behaviour, which is often ambiguous. 2. In this study whole plants were considered as patches and assumed that wasps move within patches by means of walking or flying. Within-patch and between-patch flights were distinguished based on flight distance. The quality of this classification was tested statistically by examination of log-survivor curves of flight times. 3. Wasps remained longer in patches with higher host densities, which is consistent with predictions of the marginal value theorem (Charnov 1976). Under the assumption that each flight indicates a patch departure, there is no relationship between host density and leaving tendency. 4. Oviposition influences the patch leaving behaviour of wasps in a count down fashion (Driessen et al. 1995), as predicted by an optimal foraging model (Tenhumberg, Keller & Possingham 2001). 5. Wasps spend significantly longer in the first patch encountered following release, resulting in an increased rate of superparasitism