Mit pinkem Tüll gestickt. Das Projekt Solange von Katharina Cibulka

Embroidery seen as feminine handicraft and housework seems to be out of date. Since the 1990s an opposing trend is obviously true for contemporary art, where embroidery celebrates a convincing revival in performance art and public art practice. In particular women artists experiment with new materials and techniques to explore the art of stitching as critical strategy. Working outside the gallery and occupying public space, these artists confront the viewer with a counter-practice of textile intervention. But how to describe the subversive potential of these works appropriating a traditional needlework? I will focus my discussion on the project SOLANGE by Katharina Cibulka to discuss the aesthetic, spatial and discursive strategies that inform her art practice as feminist practice. Additionally, I refer to recent transformations in the political discourse of feminist art, including the concept of collectivity in contemporary ar

Monitoring marine populations and communities : methods dealing with imperfect detectability

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Monitoring marine populations and communities: methods dealing with imperfect detectability

Effective monitoring of populations and communities is a prerequisite for ecosystembased management of marine areas. However, monitoring programs often neglect important sources of error and thus can lead to biased estimates, spurious conclusions and false management actions. One such source of error is ‘imperfect detectability’, i.e. the inability of investigators to detect all individuals or all species in a surveyed area. Although there has been great effort to develop monitoring methods that account for imperfect detectability, the application of such methods in the marine environment is not as apparent as in other systems. Plot sampling is by far the most commonly applied method for biological monitoring in the marine environment, yet it largely ignores detectability issues. However, distance sampling, mark-recapture methods, repeated presence-absence surveys for occupancy estimation, and removal methods do estimate detection probabilities and provide unbiased estimates of state variables. We review these methods and the relevant tools for their application in studies on marine populations and communities, with the aim of assisting marine biologists and managers to understand the limitations and pitfalls associated with some approaches and to select the best available methods for their monitoring needs

Monitoring marine populations and communities: methods dealing with imperfect detectability

Effective monitoring of populations and communities is a prerequisite for ecosystem-based management of marine areas. However, monitoring programs often neglect important sources of error and thus can lead to biased estimations, spurious conclusions, and false management actions. One such source of error is imperfect detectability, i.e. inability of investigators to detect all individuals or all species in a surveyed area. Although there has been great effort to develop monitoring methods that account for imperfect detectability, the application of such methods in the marine environment is not as apparent. Plot sampling is by far the most commonly applied method for biological monitoring in the marine environment, yet it largely ignores detectability issues. However, distance sampling, mark-recapture methods, repeated presence/absence surveys for occupancy estimation, and removal methods, are approaches developed that do estimate detection probabilities and provide unbiased estimations of state variables. Herein, these methods and the relevant tools for their application in studies on marine populations and communities are critically reviewed, aiming to assist marine biologists and managers to understand the limitations and pitfalls associated with some approaches and to select the best available methods for their monitoring needs.JRC.H.1-Water Resource