Motivation matters: cheliped extension displays in the hermit crab, Pagurus bernhardus, are honest signals of hunger

Whether animal signals convey honest information is a central evolutionary question, since selection pressures could, in some circumstances, favour dishonesty. A prior study of signalling in hermit crabs proposed that the cheliped extension display of Pagurus bernhardus might represent such an instance of dishonesty. A limitation of this conclusion, however, was that honesty was defined in the context of size assessment, neglecting the potential information that displays might transmit about signallers' variable internal states. Recent analyses of signalling in this same species have shown that its displays provide reliable information about the amount of risk crabs are prepared to tolerate, which therefore might enable signallers to use these displays to honestly convey their motivation to take such risks. Here we test this 'honest advertisement of motivation' hypothesis by varying crabs' need for food and analysing their signalling during simulated feeding conflicts against a model. When crabs were starved for 1-5 days, they dropped significantly in weight. Despite this decrement in resource-holding potential and energy reserves, crabs were more likely to perform cheliped extension displays the longer they were food deprived. Longer-starved crabs, whose subjective resource value was greater, also displayed at a higher rate and were more likely to risk seizing the food from the model. We conclude that cheliped extension is a reliable indicator of crabs' internal state and suggest how this honest signal might operate in conflicts over a variety of other resources in addition to food. We propose that future studies detecting apparent dishonesty should analyse many possible signal-state correlations before concluding a signal is actually dishonest. (c) 2008 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.

Predicting intentions to purchase organic food: The role of affective and moral attitudes in the Theory of Planned Behaviour

This study examined the usefulness of integrating measures of affective and moral attitudes into the Theory of Planned Behaviour (TPB)-model in predicting purchase intentions or organic foods. Moral attitude was operationalised Lis positive self-rewarding feelings of doing the right thing. Questionnaire data were gathered in three countries: Italy (N = 202), Finland (N = 270) and UK (N = 200) in March 2004. Questions focussed on intentions to purchase organic apples and organic ready-to-cook pizza instead of their conventional alternatives. Data were analysed using Structural Equation Modelling by simultaneous multi-group analysis of the three Countries. Along with attitudes, moral attitude and subjective norms explained considerable shares of variances in intentions. The relative influences of these variables varied between the Countries, such that in the UK and Italy moral attitude rather than subjective norms had stronger explanatory power. In Finland it was other way around. Inclusion of moral attitude improved the model fit and predictive ability of the model, although only marginally in Finland. Thus the results partially Support the usefulness of incorporating moral measures as well as affective items for attitude into the framework of TPB. (c) 2007 Elsevier Ltd. All rights reserved.

On Testing the 'Moral Law'

In a previous article in this journal, Daniel Kelly, Steven Stich, Kevin Haley, Serena Eng and Dan Fessler report data that, according to them, foster scepticism about an association between harm and morality existent in the Turiel tradition (Kelly et al., 2007). This article challenges their interpretation of the data. It does so by explicating some methodological problems in the Turiel tradition that Kelly et al. themselves in a way inherit and by drawing on new evidence coming from a partial replication of their research.

A cognitive Approach to Moral Responsibility: the case of a failed attempt to kill

Many theoretical claims about the folk concept of moral responsibility coming from the current literature are indeterminate because researchers do not clearly specify the folk concept of moral responsibility in question. The article pursues a cognitive approach to folk concepts that pays special attention to this indeterminacy problem. After addressing the problem, the article provides evidence on folk attributions of moral responsibility in the case a failed attempt to kill that goes against a specific claim coming from the current literature—that the dimension of causation is part of the structure of the folk concept of moral responsibility.

The good, the bad and the 'not so bad': reflecting on moral appraisal in practice

The aim of this paper is to facilitate reflection on the moral merit of practitioners in various contexts. Insight is gained from Aristotelian and Kantian accounts of moral character and an original framework for reflection is presented as an adjunct to ethical theory and principles considered when appraising others. In relation to states of character there is an irreconcilable difference between Kantian (deontic) and Aristotelian (aretaic) conceptions of the nature of full virtue (excellence of character), but at the same time it can be argued that in relation to practice their approaches complement each other. It is also argued that in relation to caring for the vulnerable, Aristotle’s conception of full virtue is more compelling than Kant’s. On the other hand, Kant’s notion of self - serving action is important in nursing and it therefore needs to be considered when reflecting on professional conduct. The conclusion reached is that Aristotelian and Kantian accounts of character appraisal should be used in a combined approach to moral appraisal. This approach draws on the accounts of both philosophers and offers valuable insight into moral character, professional conduct and, in a more formal setting, fitness to practise.

Re-imagining DDR Ex-combatants, leadership and moral agency in conflict transformation

Drawing upon criminological studies in the field of prisoner rehabilitation, this essay explores the relevance of the Demobilisation, Disarmament and Reintegration (DDR) framework to the process of conflict transformation in Northern Ireland. In a similar fashion to the critique of 'passivity' offered by, for example, the 'strengths based' or 'good lives' approach to prisoner resettlement and reintegration more generally, the authors contend that the Northern Ireland peace process offers conspicuous examples of former prisoners and combatants as agents and indeed leaders in the process of conflict transformation. They draw out three broad styles of leadership which have emerged amongst ex-combatants over the course of the Northern Ireland transition from conflict-political, military and communal. They suggest that cumulatively such leadership speaks to the potential of ex-prisoners and ex-combatants as moral agents in conflict transformation around which peacemaking can be constructed rather than as obstacles which must be 'managed' out of existence.