Why should governments or individuals invest time and resources in conserving biodiversity? A popular answer is that biodiversity has both instrumental value for humans and intrinsic value in its own right. Defending Biodiversity critically evaluates familiar arguments for these claims and finds that, at best, they provide good reasons for conserving particular species or regions. However, they fail to provide a strong justification for conserving biodiversity per se. Hence, either environmentalists must develop more compelling arguments for conserving biodiversity or else (...) they should modify their agenda. This short precis is an overview of the central findings of our book. (shrink)

The species comprising the fungal endophyte genus “Epichloë ”are symbionts of cool season grasses. About half the species in this genus are strictly vertically transmitted, and evolutionary theory suggests that these species must be mutualists. Nevertheless, Faeth and Sullivan (e.g., 2003) have argued that such vertically transmitted endophytes are ’usually parasitic,’ and Müller and Krauss (2005) have argued that such vertically transmitted endophytes fall along a mutualism-parasitism continuum. These papers (and others) have caused confusion in the field. We used a (...) systematic review to show that close to half of the published papers in this field incorrectly categorize the interaction. Here, we develop the argument that advantages and disadvantages are not the same things as mutualism and parasitism and that experimental evidence must be interpreted in the context of theory. We argue that, “contra ”Faeth and Sullivan, it is highly unlikely that such strictly vertically transmitted endophytes can be parasites, and that, “contra ”Müller and Krauss, it is inappropriate to apply the continuum concept to strictly vertically transmitted endophytes. We develop a mathematical model to support and illustrate our arguments. We use the model to clarify that parasitism “requires ”some degree of horizontal transmission, and that while it is appropriate to use the continuum concept when referring to the genus as a whole, or to species that possess horizontal transmission, we argue that it is inappropriate to use the concept when referring to species that are strictly vertically transmitted. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:The Oxford Handbook of Jewish Ethics and Morality Edited by Elliot N. Dorff and Jonathan K. CraneLouis E. NewmanThe Oxford Handbook of Jewish Ethics and Morality EDITED BY ELLIOT N. DORFF AND JONATHAN K. CRANE New York: Oxford University Press, 2012. 499 pp. $150The Oxford Handbook of Jewish Ethics and Morality addresses what has long been a major lacuna in the field of Jewish studies. No (...) one who studies the history of Judaism would deny that ethics has always occupied a central place in Jewish thought and practice. Yet the scope and range of Jewish ethical reflection, the variety of ethical theories that have animated this tradition, and the diversity of ethical viewpoints represented by major thinkers across the centuries remain far less widely understood than they should be. With the publication of this outstanding and highly readable collection of essays, however, Elliot Dorff and Jonathan Crane have given us the most definitive and encyclopedic presentation of Jewish ethics ever assembled.This latest addition to the Oxford Handbook series encompasses twenty-nine essays that span the history of Jewish ethics from biblical times to the present, but that also introduce readers to its applied and theoretical dimensions as well as the practitioners and scholars who collectively define the field of Jewish ethics. Part 1, “Jewish Ethical Theories,” which is more accurately a comprehensive history of Jewish ethics, includes insightful pieces on biblical, rabbinic, and medieval ethics, but also pieces on key figures in the modern period from Baruch Spinoza to Martin Buber, Abraham Isaac Kook, and Joseph B. Soloveitchik, among others. This section also includes important explications of the ethics of the various modern movements of Judaism (Orthodox, Conservative, Reform, and Reconstructionist) as well as essays on specific events and theoretical perspectives that have shaped Jewish ethical discourse in the postwar period—the Holocaust, feminism, and postmodernism. What emerges from these short but remarkably focused and accessible essays is a rich tapestry in which the wide array of genres and methods that characterize the ethics of Judaism are on full display.The second half of the volume is devoted to applied ethics, and here again the diversity of Jewish ethics is showcased. The topics covered include bioethics, the ethics of speech, sexuality, business, the treatment of animals and the environment, politics (both in America and in Israel), criminal justice, and war. The topic of bioethics is wisely subdivided so that we find separate treatments of beginning and end of life, of access to health care, and of genetic technologies. [End Page 219] While some of these essays rehearse positions that will be familiar to those within the tradition, each is an original contribution designed to present the spectrum of positions on that issue that have been articulated by contemporary Jewish ethicists. Accordingly, this volume will now become the first place to look for broad, representative presentations on the most commonly discussed ethical issues of our time.The value of the whole collection is further enhanced by the editors’ introductions, which place the individual essays in context and explain their editorial decisions in selecting and arranging the contributions as they have. Each essay is accompanied by a substantial list of suggestions for further reading that will be valuable to readers in their own right. The entire volume is rounded out with a subject index and a list of references to classical Jewish literature. One could simply not ask for a more carefully constructed or broadly useful handbook on this subject.In any edited collection of this nature, the quality of the individual contributions will vary to some extent. In this instance, the overall quality is extremely high, which is a tribute both to the individual contributors and to the editorial guidance provided by Dorff and Crane. Still, one cannot help but notice that some essays in the second section of the book are more descriptive (e.g., Daniel Sinclair’s essay on end-of-life issues) while others are more ideologically driven (e.g., Arthur Waskow’s essay on environmental ethics). Similarly, while the essays average approximately fifteen to twenty pages each, a few are shorter and more cursory (e.g., Aaron Mackler’s essay on... (shrink)

Davidson's account of weakness of will dependsupon a parallel that he draws between practicaland theoretical reasoning. I argue that theparallel generates a misleading picture oftheoretical reasoning. Once the misleadingpicture is corrected, I conclude that theattempt to model akratic belief on Davidson'saccount of akratic action cannot work. Thearguments that deny the possibility of akraticbelief also undermine, more generally, variousattempts to assimilate theoretical to practicalreasoning.

Muslim Medical Ethics draws on the work of historians, health-care professionals, theologians, and social scientists to produce an interdisciplinary view of ...

o ne -taking -Life ana Oavmg .Life The Islamic Context Jonathan E. Brockopp The great ethicists of the western world, Augustine, Aquinas, Kant, and others, ...

Over the past several decades, psychological essentialism has been an important topic of study, incorporating research from multiple areas of psychology, philosophy and linguistics. At its most basic level, essentialism is the tendency to represent certain concepts in terms of a deeper, unobservable property that is responsible for category membership. Originally, this concept was used to understand people’s reasoning about natural kind concepts, such as TIGER and WATER, but more recently, researchers have identified the emergence of essentialist-like intuitions in a (...) number of other contexts, including people’s representation of concepts like SCIENTIST or CHRISTIAN. This paper develops an account that aims to capture how essentialism may operate across these varied cases. In short, we argue that while there is diversity in the forms essentialism can take, these varied cases reflect the same underlying cognitive structure. (shrink)

The knowledge norm of assertion is mainly in competition with a high probability or rational credibility norm. The argument for the knowledge norm that I offer turns on cases in which a hearer responds to a speaker's assertion by asserting another sentence that would lower the probability of the speaker's assertion, were its probability less than one. In cases like this, though with qualifications, is the hearer's contribution a challenge to the speaker's assertion or complementary to it? My answer is (...) the latter, and that only the knowledge norm yields that answer.The cases that I rely on follow from an elementary probability relation, though one that is inconsistent with the still influential relevance criterion for confirmation and evidence . Assume, for illustrative purposes, that p is in your belief corpus, as a consequence of your believing ∨ ∨ . 1 You learn that ∼ & ∼ , which would lessen the probability of p, were its probability less than one, 2 since it eliminates two rows of the truth-table in which p holds. What conclusion do you reach about p?Rather than withdrawing p, you acquire the belief that p & ∼ s & ∼ r, even though Formula where pr would be the subjective or epistemic probability of p on a probabilistic view of the knowledge norm before learning ∼ & ∼ . Instead of withdrawal …. (shrink)

A critique of conversational epistemic contextualism focusing initially on why pragmatic encroachment for knowledge is to be avoided. The data for pragmatic encroachment by way of greater costs of error and the complementary means to raise standards of introducing counter-possibilities are argued to be accountable for by prudence, fallibility and pragmatics. This theme is sharpened by a contrast in recommendations: holding a number of factors constant, when allegedly higher standards for knowing hold, invariantists still recommend assertion (action), while contextualists do (...) not. Given the knowledge norm of assertion, if one recommendation is preferable to the other, the result favors the preferred recommendation's account of knowledge. In the final section, I offer a unification of these criticisms centering on the contextualist use of 'epistemic position'. Their use imposes on threshold notions of justification, warrant, or knowledge tests that are suitable only to unlimited comparative or scalar notions like confidence or certainty and places them at one with an important strand of sceptical reasoning. (shrink)

Fair lotteries offer familiar ways to pose a number of epistemological problems, prominently those of closure and of scepticism. Although these problems apply to many epistemological positions, in this paper I develop a variant of a lottery case to raise a difficulty with the reliabilist's fundamental claim that justification or knowledge is to be analyzed as a high truth-ratio (of the relevant belief-forming processes). In developing the difficulty broader issues are joined including fallibility and the relation of reliability to understanding.

This chapter contains sections titled: Epistemological Background Educational Applications On Not Addressing Epistemological Controversies.

This paper argues for the importance of the distinction between internal and external negation over expressions for belief. The common fallacy is to confuse statement like (1) and (2): (1) John believes that the school is not closed on Tuesday; (2) John does not believe that the school is closed on Tuesday. The fallacy has ramifications in teaching, reasoning, and argumentation. Analysis of the fallacy and suggestions for teaching are offered.

In Vol. XI, No.1, this journal announced an argument analysis contest. Two eminent colleagues agreed to serve as judges-Professor Henry W. Johnstone, Jr. and Professor Michael Scriven. In short order, four entries were received and sent off to the judges, who had no knowledge of the contestants' identities, and in due course the judges' verdicts were delivered. Immediately below we have reproduced the argument which was to be analyzed, along with the rules of the contest, followed by the four entries. (...) Thereafter we present the judges' rulings. (shrink)

ABSTRACT I have two main theses. The first is that the inference from accepting an educational aim, especially an ideal aim such as self-realization or critical thinking, to a conclusion as to the content or structure of a curriculum is fallacious. The first thesis should not be controversial. But even if so, the aims-curricula fallacy is readily committed, and that calls for explanation. My second thesis is that the aims–curricula fallacy is often committed because the possibilities for realizing educational aims (...) through indirect methods or learning is ignored. (shrink)

I have two main theses. The first is that the inference from accepting an educational aim, especially an ideal aim such as self-realization or critical thinking, to a conclusion as to the content or structure of a curriculum is fallacious. The first thesis should not be controversial. But even if so, the aims-curricula fallacy is readily committed, and that calls for explanation. My second thesis is that the aims–curricula fallacy is often committed because the possibilities for realizing educational aims through (...) indirect methods or learning is ignored. (shrink)

Bioethics, Volume 36, Issue 1, Page 18-24, January 2022.