Nonlethal Techniques for Managing Predation: Primary and Secondary Repellents

Abstract:   Conservation biology requires the development of practical tools and techniques to minimize conflicts arising from human modification of ecosystems. We applied behavioral theory of primary and secondary repellents to predator management by using aversive stimulus devices (electronic training collars) and disruptive stimulus devices (behavior-contingent audio and visual repellents) in a multipredator ( Canis lupus, Haliaeetus leucocephalus, Ursus spp.) study in the United States. We examined fladry and a newly developed disruptive stimulus device contingent upon behavior on six wolf territories in Wisconsin, (U.S.A.) and determined that the disruptive stimulus device gave the greatest degree of protection from predation. We also compared the efficacy of a primary repellent (disruptive stimulus device) versus a secondary repellent (electronic training collars) to keep captive wolves from consuming a food source. Disruptive stimulus devices effectively prevented captive wolves from consuming the food resource, but did not produce an aversion to that food resource. With training collars, logistical and behavioral variability limited our ability to condition wolves. Our studies highlight the complexity of application of nonlethal techniques in real-world situations.     

The Role of Botanic Gardens in the Science and Practice of Ecological Restoration

Abstract: Many of the skills and resources associated with botanic gardens and arboreta, including plant taxonomy, horticulture, and seed bank management, are fundamental to ecological restoration efforts, yet few of the world's botanic gardens are involved in the science or practice of restoration. Thus, we examined the potential role of botanic gardens in these emerging fields. We believe a reorientation of certain existing institutional strengths, such as plant‐based research and knowledge transfer, would enable many more botanic gardens worldwide to provide effective science‐based support to restoration efforts. We recommend botanic gardens widen research to include ecosystems as well as species, increase involvement in practical restoration projects and training practitioners, and serve as information hubs for data archiving and exchange.     

Factors affecting perceptions of workplace sexual harassment

This study investigated several variables that determine how one interprets another's behavior as sexually harassing in ambiguous situations. Data were collected from 1234 male and female graduate and undergraduate student subjects who responded to 24 versions of a vignette describing an interaction between a male and female who worked for the same firm (2×3×2×2 design). Variables manipulated included (1) amount of prior socializing of the man and woman; (2) job status (peer coworker, direct supervisor, executive) of harasser; (3) verbal versus touching behavior; and (4) physical setting (at computer terminal or happy hour). Results revealed several main effects such that a male's potentially harassing behavior toward a female was evaluated more negatively (1) when the pair had not previously socialized, (2) when the harasser was a supervisor or executive, (3) when it involved verbal comments, and (4) when the behavior occurred in a work (versus social) setting. Additional analysis revealed that, contrary to previous studies, there were no male–female differences among respondents in evaluations of behavior as harassing.