Ecological correlates of the threat of extinction in neotropical bird species

Predicting the threat of extinction aids efficient distribution of conservation resources. This paper utilises a comparative macroecological approach to investigate the threat of extinction in Neotropical birds. Data on ecological variables for 1708 species are analysed using stepwise regression to produce minimum adequate models, first using raw species values and then using independent contrasts (to control for phylogenetic effects). The models differ, suggesting phylogeny has significant effects. The raw species analysis reveals that number of zoogeographical regions occupied, elevational range and utilisation of specialised microhabitats were negatively associated with threat, while minimum elevation and body mass were positively associated, whereas the independent contrasts analysis only identifies zoogeographical regions as important. Confining the analysis to the 582 species restricted to a single zoogeographical region reveals elevational range and number of habitats occupied to be negatively correlated with threat whether the analysis is based on the raw data or on independent contrasts. Analysis of four contrasting zoogeographical regions highlights regional variation in the models. In two Andean regions the threat of extinction declines as the elevation range across which the species occurs increases. In the presence of substantial human populations on high Andean plateaus, a species with a greater elevational range may be more likely to persist at some (relatively) unsettled altitudes. In Central South America, the strongest predictor of threat is minimum elevation of occurrence: species with a lower minimum are less threatened. The minimum elevation result suggests that lowland species experiencing an ecological limit to their minimum elevation (min. elevation >0 m) may be more at risk than those not experiencing such a limit (min. elevation = 0 m). Finally, in southern Amazonia, where there is little altitudinal variation, the only weak predictors of threat are body size, larger species being more threatened, and number of habitats, species occupying more habitats being less threatened. These contrasting results emphasise the importance of undertaking extinction risk analyses at an appropriate geographical scale. Since the models explained only a low percentage of total variance in the data, the effects of human-mediated habitat disturbance across a wide range of habitats may be important.

Is Web 2.0 a threat to representative democracy? A deliberation through the Australian carbon tax debate

The influence of social media is intensifying in global societies. As the technologies become cheaper and the acceptance of Web 2.0 becomes widespread, the power of social media on citizens, particularly the integrated influence of Facebook, Twitter, YouTube and blogs cannot be underestimated. In this paper, we attempt a deliberation through the lens of carbon tax debate in Australia where the influence of social media has perhaps begun to portend the role of elected representation in this representative democracy.

Privacy threat analysis of social network data

Social network data has been increasingly made publicly available and analyzed in a wide spectrum of application domains. The practice of publishing social network data has brought privacy concerns to the front. Serious concerns on privacy protection in social networks have been raised in recent years. Realization of the promise of social networks data requires addressing these concerns. This paper considers the privacy disclosure in social network data publishing. In this paper, we present a systematic analysis of the various risks to privacy in publishing of social network data. We identify various attacks that can be used to reveal private information from social network data. This information is useful for developing practical countermeasures against the privacy attacks.

Anxiety versus fundamental emotions as predictors of perceived functionality of pre-competitive emotional states, threat, and challenge in individual sports

The objectives of this study were to examine the contribution of anxiety and fundamental emotions to perceived emotion functionality and evaluate the informational value of anxiety measures used in sport versus measures of fundamental emotions in terms of appraisal. A battery of questionnaires comprising the somatic and cognitive subscale of the Competitive State Anxiety Inventory-2 (CSAI-2), the State Anxiety Inventory, the Differential Emotions Scale–IV, a perceived functionality of emotions single item, and two items assessing challenge and threat appraisals was administered to 202 athletes competing in individual sports in the United Kingdom. They were tested on recalled pre-competitive emotions experienced before their best and worst competition ever and momentary emotions experienced one hour before an actual competition. In general, measures of fundamental emotions with clear approach or avoidance action tendencies were better predictors of emotion functionality than anxiety measures. Results also suggested that the CSAI-2 does not convey clear information about an athlete’s appraisal of a competition. Measures of negative and positive fundamental emotions with clear action tendencies were better indicators of athletes’ appraisal patterns. It was concluded that assessment of athletes’ emotional state should not be exclusively based on anxiety measures but should encompass or be replaced with measures of emotions conveying unambiguous information about the athlete-competition relationship.

Mini-micro unmanned aerial vehicle intelligence: a threat to land vehicles

Increasing use of commercial off-the-shelf Mini-Micro Unmanned Aerial Vehicle (MAV) systems with enhanced intelligence methodologies can potentially be a threat, if this technology falls into the wrong hands. In this study, we investigate the level of threat imposed on critical infrastructure using different MAV swarm artificial intelligence traits and coordination methodologies. The critical infrastructure in consideration is a moving commercial land vehicle that may be transporting for example an important civil servant or politician. Non-dimensional fitness functions used for measuring MAV mission effectiveness have been established for the case studies considered in this paper. The findings indicated that increased in intelligent and coordination level elevate teams' efficiency, therefore poses a higher degree of threat to targeted land vehicle. Observations from the study have suggested that memory-based cooperative technique provides a consistent efficiency compared to other methods for the mission objectives considered in this paper. © 2014 The authors and IOS Press. All rights reserved.

Assessing the threat status of ecological communities

Conservationists are increasingly interested in determining the threat status of ecological communities as a key part of their planning efforts. Such assessments are difficult because of conceptual challenges and a lack of generally accepted criteria. We reviewed 12 protocols for assessing the threat status of communities and identified conceptual and operational issues associated with developing a rigorous, transparent, and universal set of criteria for assessing communities, analogous to the International Union for Conservation of Nature (IUCN) Red List standards for species. We examined how each protocol defines a community and its extinction and how each applies 3 overarching criteria: decline in geographic distribution, restricted geographic distribution, and changes to ecological function. The protocols vary widely in threshold values used to assess declines and distribution size and the time frames used to assess declines, leading to inconsistent assessments of threat status. Few of the protocols specify a scale for measuring distribution size, although assessment outcomes are highly sensitive to scale. Protocols that apply different thresholds for species versus communities tend to require greater declines and more restricted distributions for communities than species to be listed in equivalent threat categories. Eleven of the protocols include a reduction in ecological function as a criterion, but almost all assess it qualitatively rather than quantitatively. We argue that criteria should be explicit and repeatable in their concepts, parameters, and scale, applicable to a broad range of communities, and address synergies between types of threats. Such criteria should focus on distribution size, declines in distribution, and changes to key ecological functions, with the latter based on workable proxies for assessing the severity, scope, and immediacy of degradation. Threat categories should be delimited by thresholds that are assessed at standard scales and are logically consistent with the viability of component species and important ecological functions.

Segregation-of-duties conflicts in the insider threat landscape: an overview and case study

Many insider attacks originate from misuse of privileges granted by organizations to their internal employees, contractors or third-party service providers. A fundamental means of ensuring that conflicts of privilege cannot occur is to segregate role allocations in order to ensure that no individual can perform a task from beginning to end. In this paper, we provide background on insider attacks in connection with conflicts in Segregation of Duties, and present the current strategies for preventing and detecting such conflicts. To illustrate how a conflict can occur and what can result, we present an in-depth case study demonstrating a conflict in Segregation of Dutiesin an organization, along with the consequent fraud, and we discuss how it might have been prevented.

When Catholics turn right: the effects of the Islamic terrorism threat on the fragmented Catholic Italian voters

Italy, as well as most European countries, has been hit by a wave of anxiety arising from groups such as ISIS and Al Qaeda, whose effects on political attitudes are still under-examined. This article investigates the effect of the perceived threat of Islamic terrorism as a potential driver for a ‘right turn’ in the Catholic Italian electorate with open-ended interviews and an Internet-based experiment in which voters were randomly assigned to a terrorism threat manipulation and to a control condition (N = 138). The results show that the Islamic terroristic threat significantly increased the support for centre-right leaders who promoted in-group identity and out-group hostility towards Muslims. Implications for the debate about the effects of perceived threat on political opinions and the relevance of the findings beyond the Italian case are discussed at the end of the article.

In the name of humanity: the government of threat and care

In this volume, editors Ilana Feldman and Miriam Ticktin have drawn together an outstanding collection of essays exploring the concept of ‘humanity’ in a range of contexts and from a rich variety of perspectives. Tracing the categorisation of humanity throughout history in their introductory chapter, Feldman and Ticktin highlight the perennial tension inherent in its definition and use. The ever-shifting boundaries of humanity serve to include and protect even as they reject and threaten those identified as ‘other’. Each of the eleven chapters engages with the fundamental question of what it means to be human, and the implications of possible responses to this for the practice of governance. However, despite the pervasive theme of government— which is explored explicitly in the context of humanitarian law (Richard Ashby Wilson) and aid (Didier Fassin), healthcare (Joao Biehl; S. Lochlann Jain; Adriana Petryna), and the regulation of human interactions with nature (Arun Agrawal; Charles Zerner)—it is the more personal aspect of the human experience that takes centre stage in most chapters, and which offers the deepest insights into that elusive concept: ‘humanity’. It offers readers a multifaceted and open-ended account of humanity, which will inform better governance and more effective research in this field.

The threat of autocracy diffusion in consolidated democracies? The case of China, Singapore and Australia

The majority of today’s authoritarian regimes have little hope of promoting autocracy beyond their own borders, let alone to consolidated democratic countries. However, China and Singapore are two prominent examples of non-democratic countries whose soft power arsenals have given them some global appeal beyond that enjoyed by most authoritarian regimes. But to what extent has China’s and Singapore’s power of example influenced consolidated democracies in terms that the latter wanting to replicate some political practices or even norms in these non-democratic regimes? In this article, we engage recent works to examine this question in relation to how Australians perceive the political example offered by China and Singapore. Focusing our analysis on several prominent polls conducted recently by the Lowy Institute for International Policy, we suggest that at present there is little evidence of a causal impact of the rise of authoritarian powerhouses such as China and Singapore on how Australians view democracy at home. Through these case studies, this article sheds some light on the theoretical as well as practical questions about the inherent impediments of authoritarian diffusion in consolidated democracies.