The idea that biological diversity enhances ecological stability has inspired a huge body of scientific research, from the 1950's and before to the 2000's and beyond. It has also played an important role in environmental ethics, e.g., in Leopold's land ethic. In his view, biodiversity is essential for "a food chain aimed to harmonize the wild and the tame in the joint interest of stability, productivity, and beauty." (1949, p. 199) Then, as now, potential links between diversity and stability helped (...) to whet the impetus for conservation. (shrink)

The mass extinction visited upon us by capitalism involves many kinds of devastation. Here I clarify the grounds for assessing the most obvious of these harms, i.e., decimation of species diversity. The thesis that variety among species has intrinsic value motivates, and in turn follows from, the “variable value view” (VVV) of abundance within any given species. In contrast, standard axiologies have no place for the intrinsic value of species diversity. I show that the VVV provides a better justification than (...) the latter do, of the way in which a widely-used empirical indicator summarizes the overall state of life on Earth. These considerations favor ecocentric value theory – which ascribes intrinsic value to properties of ecological wholes, like species diversity, that do not supervene on the well-being of their constituent organisms – over its main competitors. I conclude by widening the focus from wild nature alone to the biosphere comprising both wilderness and the domesticated realm. This broadened perspective helps to link the science and ethics of biodiversity with the political struggle to extract ourselves from the moral abyss of mass extinction. (shrink)

water paradox has long served as an argument against the Principle of Indifference. A solution to the paradox is proposed, with a view toward resolving general difficulties in applying the principle.

GREGORY MIKKELSON | : Animal and environmental ethics should converge on the following three value judgments: natural ecosystems generally involve more good than harm; predation in nature tends to yield positive net benefits; and, at least on a global scale, livestock farming is destroying more value than it is creating. But the ecocentric criteria of environmental ethics and the sentientist criteria of animal ethics may have divergent implications for capitalism’s main effect on the world: the collapse of wild nature (...) due to explosive growth in the human economy. Sentientism risks counting this effect as a net gain, whereas ecocentrism surely rates it a massive net loss. While supporting the above claims, I show how they fit into a larger argument in favour of the broader, ecocentric value theory of environmental ethics and against the narrower, sentientist axiology of animal ethics. | : Les éthiques animale et environnementale devraient converger vers les trois jugements de valeur suivants: les écosystèmes naturels impliquent généralement plus de bien que de mal, la prédation dans la nature a tendance à produire des avantages nets positifs et, au moins à l’échelle mondiale, l’élevage animal détruit plus de valeur qu’il n’en crée. Mais les critères écocentriques de l’éthique environnementale et les critères de l’éthique animale fondés sur la sentience pourraient avoir des implications divergentes sur l’effet principal du capitalisme sur le monde: l’effondrement de la nature sauvage dû à la croissance explosive de l’économie humaine. Le sentientisme risque de considérer cet effet comme un gain net, alors que l’écocentrisme le considère sûrement comme une perte nette massive. Tout en soutenant les affirmations ci-dessus, je montre comment elles s’intègrent dans un argument plus large en faveur d’une théorie de la valeur écocentrique plus englobante propre à l’éthique environnementale et contre l’axiologie sentientiste plus étroite de l’éthique animale. (shrink)

Scientists must sometimes choose between competing definitions of key terms. The degree to which different definitions facilitate important dis- coveries should ultimately guide decisions about which terms to accept. In the short run, rules of thumb can help. One such rule is to regard with suspicion any definition that turns a seemingly important empiri- cal matter into an a priori exercise. Several prominent definitions of eco- logical “stability” are suspect, according to this rule. After evaluating alternatives, I suggest that the (...) faulty definitions resulted from an over- emphasis on population dynamics in community ecology. Machine met- aphors of nature may have given rise to a related problem of experimen- tal design. (shrink)

Ecologists typically invoke "law-like" generalizations, ranging over "structural" and/or "functional" kinds, in order to explain generalizations about "historical" kinds (such as biological taxa)rather than vice versa. This practice is justified, since structural and functional kinds tend to correlate better with important ecological phenomena than do historical kinds. I support these contentions with three recent case studies. In one sense, therefore, ecology is, and should be, more nomothetic, or law-oriented, than idiographic, or historically oriented. This conclusion challenges several recent philosophical claims (...) about the nature of ecological science. (shrink)

Scientists must sometimes choose between competing definitions of key terms. The degree to which different definitions facilitate important discoveries should ultimately guide decisions about which terms to accept. In the short run, rules of thumb can help. One such rule is to regard with suspicion any definition that turns a seemingly important empirical matter into an a priori exercise. Several prominent definitions of ecological “stability” are suspect, according to this rule. After evaluating alternatives, I suggest that the faulty definitions resulted (...) from an overemphasis on population dynamics in community ecology. Machine metaphors of nature may have given rise to a related problem of experimental design. (shrink)

Department of Philosophy and School of Environment McGill University 855 Sherbrooke Street West Montréal, Québec H3A 2T7 Canada E-mail: gregory.mikkelson@mcgill.ca.

Richness theory offers an alternative to the paradigms that have dominated the short history of environmental ethics as a self-conscious field. This alternative theoretical paradigm defines intrinsic value as “richness”—a synonym for “organic unity” or “unity in diversity.” Richness theory can handily reconcile two kinds of ideas that seem to be in tension with each other:that (1) an individual human being has a greater worth than an individual organism of just about any other species; and (2) yet the world would (...) be a better place with substantially fewer humans and/or less consumption per capita, thus leaving more resources for other species.The mutual compatibility of such ideas within the framework of richness theory can be demonstrated both verbally and through a simplified mathematical model. (shrink)

In this paper, I offer a new defense of scientific realism, tailored for the Akaikean paradigm of statistical hypothesis testing. After proposing definitions of verisimilitude and predictive success, I use computer simulations to show how the latter depends on the former, even in the kind of case featured in a recent argument for instrumentalism.

Hume's Reception in Early America: Expanded Edition brings together the original American responses to one of Britain's greatest men of letters, David Hume. Now available as a single volume paperback, this new edition includes updated further readings suggestions and dozens of additional primary sources gathered together in a completely new concluding section. From complete pamphlets and booklets, to poems, reviews, and letters, to extracts from newspapers, religious magazines and literary and political journals, this book's contents come from a wide variety (...) of sources published in colonial America and the early United States between 1758 and 1850. As well as classics by Thomas Jefferson, John Adams and Alexander Hamilton, it contains scores of unknown and hard-to-locate items, many of which have not been reprinted since their original publication. These responses are divided into four parts covering Hume's Essays; his Philosophical Writings; his History of England; and his Character and Death. Each of those parts has a separate introductory essay, and every selection is introduced by a short headnote that sets the piece in its historical context and provides bibliographical references. Packed with new insights into Hume and American thought and culture, Hume's Reception in Early America reveals the relevance and impact of Hume on American political, philosophical, historical, religious, and aesthetic debates. (shrink)

Jelson Roberto de Oliveira, autor de “Compreender Hans Jonas”, é graduado em Filosofia pela Universidade Federal do Paraná, com especialização em Sociologia Política e mestrado em História da Filosofia Moderna e Contemporânea pela mesma universidade. Atualmente é professor da pós-graduação em Filosofia na PUC-PR, e coordenador do GT Hans Jonas, da Anpof, que reúne vários pesquisadores de nível nacional na área. Ética para a civilização tecnológica e A solidão como virtude moral em Nietzsche são alguns dos diversos títulos que compõem (...) o acervo de obras do autor. (shrink)

Human activity is causing high rates of biodiversity loss. Yet, surprisingly little is known about the extent to which socioeconomic factors exacerbate or ameliorate our impacts on biological diversity. One such factor, economic inequality, has been shown to affect public health, and has been linked to environmental problems in general. We tested how strongly economic inequality is related to biodiversity loss in particular. We found that among countries, and among US states, the number of species that are threatened or declining (...) increases substantially with the Gini ratio of income inequality. At both levels of analysis, the connection between income inequality and biodiversity loss persists after controlling for biophysical conditions, human population size, and per capita GDP or income. Future research should explore potential mechanisms behind this equality-biodiversity relationship. Our results suggest that economic reforms would go hand in hand with, if not serving as a prerequisite for, effective conservation. (shrink)

Richness theory offers a promising axiology. In this paper, I discuss how to translate it into a deontology. To do so, I recruit the concept of moral distance from a recently developed epistemology, and construe it in terms of causal power. Finally, I apply the resulting decision-theoretic framework to the question of how best to avert ecological disaster over the next 36 years and achieve ecological harmony over the next 986.

: Here is presented the functional relationship between certain prominent virtues in Dōgen (karunā and prajñā and kō) vis-à-vis the functional relationship between certain prominent virtues in Aquinas (caritas and prudentia and pietas) in order to contribute to a better understanding of Dōgen's moral vision and provide some groundwork preliminary to the task of a detailed comparison of Aquinas and Dōgen.

This essay is an analysis of Dōgen's commentary on "Nan-ch'üan's Cutting of the Cat" as found in section 1.6 of the Shōbōgenzō Zuimonki. It argues that Dōgen's conception of hishiryō ("without-thinking") is the starting point for understanding Dōgen's moral vision, and employs this idea in the interpretation of the passage.

This essay is an analysis of Dōgen's commentary on "Nan-ch'üan's Cutting of the Cat" as found in section 1.6 of the Shōbōgenzō Zuimonki. It argues that Dōgen's conception of hishiryō is the starting point for understanding Dōgen's moral vision, and employs this idea in the interpretation of the passage.

By Gregory M. Mikkelson School of Environment and Department of Philosophy McGill University, 3534 University Street Montréal, QC H3A 2A7 CANADA gregory.mikkelson@mcgill.ca Keynote contribution to the session "Integrating Ecological and Social Scales" Electronic conference "Landscape Scale Biodiversity Assessment" European Platform for Biodiversity, www.bioplatform.info Posted March 9th, 2005..

In lieu of an abstract, here is a brief excerpt of the content:Aquinas and Dōgen on Entrance into the Religious LifeDouglas K. MikkelsonComparative studies of Christianity and Buddhism have the potential to draw on a wide array of dialogic partners from their respective histories. Two promising candidates are Thomas Aquinas (1225–1274) and Dōgen (1200–1253). Aquinas was the angelic doctor whose theological thinking became normative for Roman Catholicism; Dōgen was the prominent Zen master whose influence on the intellectual development of Zen (...) Buddhism is unsurpassed. As it happens, both men "entered into the religious life," and within their respective collected works we see considerable attention to the topic. If we seek to explore what they had to say on the subject, we might benefit by identifying some texts from both thinkers that could serve as focal points for a comparative analysis. Of the massive accumulated writings of both men, the largest are Aquinas's Summa Theologiae and Dōgen's Shōbōgenzō. So it seems logical to start our search by turning our attention to these monumental works.Let us begin with the Summa Theologiae. In the secunda secundae Aquinas addresses a total of 189 topics presented in a question-and-answer format. The first 170 topics concern "themes related to all stations of life"; questions 171–189 explore "details related to particular callings" (2a2ae, Prologus). Question 189, hereinafter identified as 2a2ae q. 189, is specifically devoted to the topic of "entering the religious life" (de ingressu religionis).1When we turn to the Shōbōgenzō, we find a work titled Shukke Kudoku. "Kudoku" means "merit"; "shukke," commonly translated as "leaving home," denotes a person who has renounced home and family in order to enter monastic life. Thus "Shukke Kudoku" can be rendered in English as "The Merit of Entering the Religious Life."2Given that these texts are relatively accessible and substantive presentations of comparable length on issues pertaining to the religious life, they seem to be good focal points for this discussion. At the same time, both thinkers addressed the subject in other venues also, and we can briefly refer to this material as well. But in this article I will primarily concentrate on how a comparative analysis of these two texts illuminates the subject. Defining the discussion in this fashion has the advantage of presenting Aquinas's and Dōgen's views in a particular time and place, leaving aside the more complex issue of how their views may have changed over time. [End Page 109]Let us begin with Aquinas. Aquinas begins 2a2ae q. 189 by outlining ten points of inquiry to be pursued, in effect dividing the question into ten subquestions. The first on the list is "whether those alone should enter religious life who are practiced in keeping the commandments." The commandments he means, of course, are the precepts of the decalogue, the Ten Commandments of Exodus 20:17 and Deut. 5:6–21.Aquinas's standard modus operandi was to first entertain arguments leading to aconclusion opposing his own. In this question he outlines five lines of argument, and in each instance the arguments lead to the assertion that one should not practice the counsels "until one is practiced in keeping the commandments" (nisi prius sit exercitatus in praeceptis); by "counsels" Aquinas means the observance of poverty, chastity, and obedience that are undertaken by those who enter the religious life. As he had explained previously, "The difference between a counsel and a precept lies in this, that a precept implies necessity, while a counsel is left to the choice of the one to whom it is given" (1a2ae q. 108.4).3 Precepts such as the commandments, in other words, enjoin an obligation; counsels are optional.We will discover Aquinas's own answer soon, but we should first note how Aquinas begins his discussion of entrance into the religious life. He begins by posing a question about whether or not one practiced in keeping the commandments should enter the religious life. In the course of answering his own question, he essentially reframes it, seeking to explore whether or not one should practice the counsels before one has become adept at keeping the commandments. For Aquinas, both formulations... (shrink)

Some recent developments in ecology, economics, and ethics can be brought together within a remarkably simple yet general theoretical framework. Two applications of this framework involve the effects of species diversity on ecosystem productivity, and of economic inequality on biodiversity loss, respectively. In each of these two cases, part of the overall causal relationship is mediated by a diminishing-returns relationship at the lower level (the level of the population or the person, respectively). But same-level (ecosystem or societal, respectively) and/or higher-level (...) (landscape or inter-societal) mechanisms also come in play. In the diversity-productivity case, the proposed theoretical perspective enables one to quantify how much more "the whole is... than the sum of the parts". These aspects of the ecological and economic realms have interesting parallels in the domain of "pure" ethics. (shrink)

In: Hull, D. L. and M. Ruse, editors. Cambridge Companion to the Philosophy of Biology. Cambridge University Press. New York, NY. Pp. 372-387.

In: Ruse, M., editor. Philosophy of Biology. Prometheus Books. Amherst, NY. Pp. 385-392.

Ecology is the science of who eats whom, of what lives where and when it got there, of why the world is green, and how the human species might fit in. Despite, or perhaps because of, the fascinating variety of its subject matter, ecology has received less attention from philosophers of biology than have other fields – notably genetics and evolutionary biology. Our time of catastrophic environmental change calls for dramatic improvements in ecological understanding. It thus behooves philosophers – along (...) with everybody else – to become more familiar with ecological science. (shrink)

One of the most exciting things about science is the access that it provides to phenomena remote from everyday experience. Through science we delve into the distant past, explore other cultures, peer across vast reaches of space, and assay the microscopic structure of the world. As our understanding extends in all these directions, philosophers and scientists often ask how the resulting branches of knowledge are related.

Lewis' argument against the Limit Assumption and Pollock's Generalized Consequence Principle together suggest that "minimal-change" theories of counterfactuals are wrong. The "small-change" theories presented by Nute do not say enough. While these theories rely on closeness between possible worlds, I base an alternative on the ceteris paribus concept. My theory solves a problem that the above cannot, and is more relevant to the philosophy of science. Ceteris paribus conditions should normally include the causes, but exclude the effects, of the negated (...) antecedent. An example from community ecology, the debate over null models in island-biogeographical studies of competition, supports these arguments. (shrink)

Lewis' argument against the Limit Assumption and Pollock's Generalized Consequence Principle together suggest that "minimal-change" theories of counterfactuals are wrong. The "small-change" theories presented by Nute do not say enough. While these theories rely on closeness between possible worlds, I base an alternative on the ceteris paribus concept. My theory solves a problem that the above cannot, and is more relevant to the philosophy of science. Ceteris paribus conditions should normally include the causes, but exclude the effects, of the negated (...) antecedent. An example from community ecology, the debate over null models in island-biogeographical studies of competition, supports these arguments. (shrink)

Revitalized interest in "the virtues" has affected the study of Buddhism in recent years, and in this regard we may benefit by focusing on the Zen Master Dōgen (1200-1253). Seeking to describe Dōgen's moral virtues, we might begin by a study of his primer, the "Shōbōgenzō" Zuimonki; a particularly efficacious template for this project would appear to be one provided by Edmund L. Pincoffs in his book "Quandaries and Virtues: Against Reductivism in Ethics". This "modus operandi" reveals Dōgen's exhortation of (...) a broad array of mandatory and nonmandatory virtues, partially depend- ing on whether or not the intended recipient is a layperson or one leading the religious life. If valid, this description may benefit Dōgen Studies as well as contribute to, and encourage, other "Western" efforts to articulate Buddhist ethics. (shrink)

One of Hume's most well-known works and a masterpiece of philosophy, A Treatise of Human Nature is indubitably worth taking the time to read.

This is a welcome reprint of a book that continues to grow in importance.

In this stimulating work of political philosophy, acclaimed philosopher G. A. Cohen sets out to rescue the egalitarian thesis that in a society in which distributive justice prevails, peopleâes material prospects are roughly equal. Arguing against the Rawlsian version of a just society, Cohen demonstrates that distributive justice does not tolerate deep inequality. In the course of providing a deep and sophisticated critique of Rawlsâes theory of justice, Cohen demonstrates that questions of distributive justice arise not only for the state (...) but also for people in their daily lives. The right rules for the macro scale of public institutions and policies also apply, with suitable adjustments, to the micro level of individual decision-making. Cohen also charges Rawlsâes constructivism with systematically conflating the concept of justice with other concepts. Within the Rawlsian architectonic, justice is not distinguished either from other values or from optimal rules of social regulation. The elimination of those conflations brings justice closer to equality. (shrink)

When data are limited, simple models of complex ecological systems tend to wind up closer to the truth than more complex models of the same systems. This greater proximity to the truth, or verisimilitude, leads to greater predictive success. When more data are available, the advantage of simplicity decreases, and more complex models may gain the upper hand. In ecology, holistic models are usually simpler than reductionistic models. Thus, when data are limited, holistic models have an advantage over reductionistic models, (...) with respect to verisimilitude and predictive success. I illustrate these points with models designed to explain and predict the numbers of species on islands. (shrink)