Frágil é, segundo Alexis de Tocqueville, o equilíbrio em que se encontra a liberdade em um estado social de igualdade de condições. Tomados pela sua maior paixão, a da igualdade, os homens democráticos podem assistir a conversão da liberdade em despotismo ao se entregarem à busca exclusiva de seus interesses e bens privados, ao abdicarem da faculdade de julgar, deixandose guiar servilmente pela opinião da maioria, a fonte da autoridade em tal estado social. Em face disso, este artigo sustenta que, (...) ao discorrer acerca dos costumes estadunidenses, n'A Democracia na América, o autor não faz mera descrição mas delineia uma teoria social, a doutrina do interesse bem compreendido, a qual relacionaria, na república americana, a virtude e o interesse, e poderia fornecer elementos para instruir as sociedades democráticas. (shrink)

Segundo uma célebre tese defendida por Philip Pettit, um agente é livre conquanto cada uma de suas ações seja não somente acessível, mas também não-dominada, no sentido de que ninguém tenha o poder de bloquear o acesso a tais ações. Através de contraexemplos, esse artigo procura demonstrar que a vontade de eliminar a dominação pode diminuir antes que reforçar a liberdade individual.

The aim of this work is to identify and analyze a set of challenges that are likely to be encountered when one embarks on fieldwork in linguistic communities that feature small, young, and/or non-standard languages with a goal to elicit big sets of rich data. For each challenge, we (i) explain its nature and implications, (ii) offer one or more examples of how it is manifested in actual linguistic communities, and (iii) where possible, offer recommendations for addressing it effectively. Our (...) list of challenges involves static characteristics (e.g., absence of orthographic conventions and how it affects data collection), dynamic processes (e.g., speed of language change in small languages and how it affects longitudinal collection of big amounts of data), and interactive relations between non-dynamic features that are nevertheless subject to potentially rapid change (e.g., absence of standardized assessment tools or estimates for psycholinguistic variables). The identified challenges represent the domains of data collection and handling, participant recruitment, and experimental design. Among other issues, we discuss population limits and degree of power, inter- and intraspeaker variation, absence of metalanguage and its implications for the process of eliciting acceptability judgments, and challenges that arise from absence of local funding, conflicting regulations in relation to privacy issues, and exporting large samples of data across countries. Finally, the ten experimental challenges presented cover a broad typological spectrum, encompassing both spoken and sign, extant and nearly extinct languages. (shrink)

In many regions around the world, those at highest risk for acquiring HIV are young adults and adolescents. Young men who have sex with men in the USA are the group at greatest risk for HIV acquisition, particularly if they are part of a racial or ethnic minority group.1 Adolescent girls and young women have the highest incidence rates of any demographic subgroup in sub-Saharan Africa.2 To reverse the global AIDS pandemic’s toll on these high-risk groups, it is important to (...) deploy the most effective HIV prevention tools to young MSM in the USA, to adolescent girls and young women in sub-Saharan Africa, and to any other adolescents and young adults at high risk for HIV as products are proven to be safe and efficacious. Although prevention interventions with proven efficacy, such as oral pre-exposure prophylaxis, are available,3–8 they have not been sufficient to stem the tide and an expanded prevention toolkit is urgently needed to serve these populations. The field of HIV prevention continues to identify promising leads in the development of new biomedical prevention products, either delivering antiviral drug topically or systemically. The dapivirine ring has been shown to provide modest protection and is currently being tested in open label studies while injectable cabotegravir is being tested in a large efficacy trial for preventing HIV acquisition. Advances in the field of HIV prevention mean that scientists and regulators must plan for how they will bring prevention tools to populations at high risk for HIV as they conduct efficacy and effectiveness trials. For instance, safety data from younger age groups can also be used in combination with efficacy data from adult studies, where appropriate, as bridging studies to expand labelling to younger ages. If these …. (shrink)

Gli anni Sessanta e Settanta costituiscono un tornante fondamentale della democrazia statunitense segnato dall’apogeo del _liberalism_ e dalla sua crisi. In questo contesto uno dei più noti economisti americani, John Kenneth Galbraith, osserva come la tecnologia, il suo avanzamento costante, trasforma il rapporto tra Stato e mercato e ridefinisce il ruolo delle istituzioni nella società. La sua critica alla tecnostruttura della _corporation_, come forma di una pianificazione totalitaria che si oppone al mercato e lo domina, è diretta a svelare il (...) progetto di governance sociale che essa cela. Nella sua trilogia dedicata al nuovo stato industriale e a quella che chiama «società opulenta» emerge una nuova concettualizzazione del potere sociale e della possibilità di ristabilire un’autorità pubblica su di esso. (shrink)

Book reviewed in this article: Long Term Care: Principles, Programs and Policies. By Rosalie A. Kane and Robert L. Kane. Long Term Health Care: providing a Spectrum of Services to the Aged. By Philip W. Brickner, Anthony J. Lechich, Roberta Lipsman, and Linda K. scharer.

Volume XVI Phenomenology of Emotions, Systematical and Historical Perspectives Aim and Scope: The New Yearbook for Phenomenology and Phenomenological Philosophy provides an annual international forum for phenomenological research in the spirit of Husserl's groundbreaking work and the extension of this work by such figures as Scheler, Heidegger, Sartre, Levinas, Merleau-Ponty and Gadamer. Contributors: Esteban Marín Ávila, Thiemo Breyer, Jakub Čapek, Mariano Crespo, Roberta De Monticelli, John J. Drummond, Søren Engelsen, Maria Gyemant, Mirja Hartimo, Elisa Magrì, Ronny Miron, Anthony J. (...) Steinbock, Panos Theodorou, Íngrid Vendrell Ferran, Antonio Zirión Quijano, and Nate Zuckerman. Submissions: Manuscripts, prepared for blind review, should be submitted to the Editors electronically via e-mail attachments. (shrink)

Tato studie pojednává o rané fázi mikroskopického zkoumání přírody, které ve svém díle Micrographia představil Robert Hooke. Vzhledem k obsáhlosti díla se zaměřuje na pasáže, které Hooke věnoval výzkumu hmyzu. Předmětem analýzy je především metodologie Hookova výzkumu: způsob, jakým tento experimentátor využíval mikroskop ke zkoumání mravenců, much, komárů a jiného hmyzu. Dále je pozornost věnována způsobu, jakým Hooke představoval výsledky svého pozorování, tedy popisům a ilustracím hmyzu. A konečně, příspěvek se také pokouší vyložit vybrané záznamy mikroskopických pozorování v Micrographii a (...) objasnit jejich vazbu na filosofickou a náboženskou interpretaci přírody sedmnáctého století. (shrink)

This paper explores a tension between Francis's openness to ‘liminality’ and certain papal statements condemning transness that reproduce the ways in which people are marginalised as trans. It seeks to make sense of these tensions, reading them back through Francis's theology of history, and suggesting a place for trans people to locate ourselves within the Church in spite of them. It argues that Francis's failings around transness can be viewed as ‘limitations’ to be overcome in a redemptive movement. It then (...) argues that Francis's theology of history is reflected in his ‘dialogical’ use of authority, which admits a space and role for us as pastorally accompanying the Church beyond these limitations. Finally, it argues that Francis's pastoral theology is founded on a theology of encounter which suggests that this process is an expression of divine love that draws people to God through a loving encounter with others. Trans people are thus called to put ourselves at the service of this love, and can take hope in its powers even amidst our own weakness. (shrink)

The chance discovery in 1991 close to the fortress of Hollm (SE Albania) of a coin hoard consisting almost exclusively of silver Aiginetic staters, contained in a bronze oinochoe of Rhodian type, pro vides an opportunity to examine our present state of knowledge about the issues of Aiginetic "tortoises" struck between ca 520 and ca 300 B. C. The 394 staters in the hoard attest for the first time the penetration of Aiginetic coinage in Illyria. To judge from its composition (...) the hoard must have been hidden in the years around 420. A possible explanation for its unusual presence in Albania could be the diaspora of the Aiginetans after 432, when a group of those expelled took part in the foundation of Damastion (Strabo, VIII 6,16). (shrink)

Les lignes 72-74 de la lex portorii Asiae découverte à Éphèse mentionnent, d'après les éditeurs H. Engelmann et D. Knibbe, les dîmes et la scriptura (impôt sur les pâturages), les premières pour en régler la perception, la seconde pour dispenser de droits de douane les troupeaux en transhumance d'été. Il s'agit en fait de fausses lectures : à la 1. 74, il faut lire (au lieu de μετακομιδηι τη ήλιαρίφ) : ή 8ι' αυτό. D'autre part il n'y a pas deux (...) phrases concernant deux sujets différents, mais une seule, à lire continûment. Ce sont les produits des dîmes qui, dans certaines circonstances, et à certaines conditions, sont dispensés de payer la douane. On suggère qu'il était question 1. 73, dans la lacune, des «droits de garde» (custodia, φυλακείον) dans les entrepôts de la douane. (shrink)

This paper anticipates a peril involved in Catholic writing on trans issues, which I call perlocutionary dominion: the empowerment of cisgender voices, and disempowerment of transgender voices within our theological communities through perlocutionary acts. It finds an example of this peril in Helen Watt's paper, ‘Gender Transition: The Moral Meaning of Bodily and Social Presentation’, focusing specifically on the use of negative themes; as well as the less obvious, positive-affective feature of gestures of care. It then looks to Pope Francis's (...) ‘four principles’ in Evangelii gaudium as the basis for a methodological principle that can help to avoid it. It argues that Francis's principles exhort us towards a project of community building that embraces alterity and invites critical engagement with our own convictions, while reflecting honestly on how our speech shapes that community in ways beyond their constative function. It concludes by suggesting the principle, ‘Everything About Us, For Us’, which encapsulates the kinds of behaviours required by this project. (shrink)

Avtor predstavi Roberta Boyla kot eksperimentalnega filozofa in njegov doprinos pri vzpostavljanju vloge eksperimentalne filozofije v novoveški znanstveni skupnosti. Kot filozof narave je Boyle združeval tri novoveške identitete: učenjaka oziroma filozofa, kristjana in gentlemana. Boylov program naravne filozofije je mogoče strniti v dve programski točki. Prvič, razložiti naravo s sklicevanjem na njene osnovne gradnike, tj. drobna telesca oziroma corpuscules. Drugič, Boyle nadaljuje mehanicistične razlage narave, ki naravne pojave pojasnjujejo izhajajoč iz delovanja strojev, ki so človeški izdelek. Področje, na katerem (...) je bil Boylov doprinos k naravni filozofiji 17. stoletja morda največji, zadeva raziskave o tem, kaj so kvalitete ali lastnosti teles. S svojimi ugotovitvami je vplival tako na razvoj Newtonove naravne filozofije kot tudi Lockove empiristične filozofije duha in zaznave. (shrink)

Cieľom štúdie je vysvetliť motiváciu a podstatu filozofických koncepcií, podľa ktorých je tvrdenie normatívny fenomén. Začnem tým, že zmapujem kľúčové myšlienky k problematike tvrdenia, a lokalizujem typické normatívne prístupy. Potom rozoberiem, čo vlastne znamená povedať, že tvrdenie je normatívnym fenoménom špecifického druhu, a predložím špekulatívno-hypotetickú rekonštrukciu genézy tvrdiacej jazykovej hry - presnejšie, jej protoformy - ktorá by mala vyzdvihnúť jej charakteristické sociálno-normatívne aspekty. Na tomto základe postavím kritické porovnanie dvoch reprezentatívnych normatívnych prístupov k tvrdeniu: pragmatického inferencializmu Roberta Brandoma a (...) Knowledge Account of Assertion Timothyho Williamsona. Budem argumentovať, že Brandomov prístup adekvátnejšie vystihuje sociálnu povahu tvrdenia, esenciálnu pre túto rečovú hru. (shrink)

V této studii se pokouším předložit postoj Margaret Cavendishové (1623-1673) ke zkoumání přírody ve druhé polovině 17. století. Pro tento účel jsem analyzovala především dílo Observations upon Experimental Philosophy (1666), které představuje nejucelenější filosofický výklad přírody této autorky. Prostřednictvím něho postihuji ontologické i epistemologické námitky Cavendishové k charakteru zkoumání přírody členy nově založeného vědeckého společenství – Royal Society. Z tohoto důvodu se zaměřuji rovněž na dílo Micrographia (1665) Roberta Hooka, který pro autorku tuto společnost reprezentuje. Cílem studie není rehabilitovat (...) osobu a dílo Margaret Cavendishové, nýbrž charakterizovat způsob, jímž se pokusila zhodnotit myšlenky nové experimentální, tj. zkušenostní vědy. (shrink)

A teoria kantiana do federalismo foi objecto de várias tentativas recentes de revisão e actualização. No entanto, a perspectiva em que tal empreendimento foi levado a cabo, acusa uma deficiente concepção das articulações do federalismo, não apenas no interior da pensamento jurídico-político do mestre de Königsberg, mas na sua plena inserção no sistema crítico kantiano no seu conjunto. Neste artigo, o autor visa demonstrar que, longe de ser um obstáculo, ou uma espécie de resíduo metafísico, a filosofia kantiana da história (...) é a fonte matricial da concepção kantiana de federalismo. À luz da história e da ideia de progresso, entendida não como escatologia laica, mas como ideia reguladora da razão e como imperativo prático, a meditação kantiana sobre o federalismo ganha contornos de actualidade e inspiração que se encontram muito longe de se deverem considerar esgotados. /// The theory of federalism is one of the most vivid and dynamic features of Kant's thought, and one of the most influent in contemporary debates regarding a new world order. The author of the present article, however, addresses the lack of consistency of several of the recent attempts to review some of the essential elements of the Kantian conception of federalism. Those 'revisionist' approaches depart from the ill grounded thesis that Kant wasn't able to avoid the temptation of a metaphysical "intention of Nature" (Naturabsicht). But the present article asserts precisely the critical status of Kant's philosophy of history, which for the author is the source of both a theory of culture and of a vision of the federal order. The article also shows that the Kantian philosophy of history rather than being an exception, abides completely by the transcendental principles and concepts developed in the realm of a teleological, although not metaphysical, reading of Nature, namely by those outlined in the Kritik der Urteilskraft. (shrink)

Merleau-Ponty. Une conception de l’empathie non centrée sur le sujet?Cet article étudie l’émergence du terme « empathie » dans les textes de Merleau-Ponty. Il souligne que le concept n’est pas avant tout présenté comme une catégorie épistémologique, remettant en question si et comment nous pouvons éventuellement connaître les autres. Au contraire, il est conçu comme une catégorie ontologique, pour dire notre appartenance à une nature commune. De ce point de vue, il propose une façon sensible pour comprendre les autres, basée (...) sur une proximité et un partage physiques.Mais, avec des références à l’actuel débat, le texte suggère que, dans les réflexions du phénoménologue français, il est possible de trouver un paradigme qui n’est pas centré sur une conception subjective de l’empathie – c’est a dire qu’il s’agit d’un paradigme qui ne suppose pas toujours une projection subjective de ma sensibilité sur celle des autres. Plutôt, il peut à la fois consister en un sentiment commun, prépersonnel, qui constitue l’arrière-plan de nos sensibilités conscientes, et aussi proceder de l’autre être humain à moi, alors que souvent je sens et comprendre moi-même par differentiation des autres personnes, qui s’imposent sur mes sentiments et sur mes mots.Merleau-Ponty. A Conception of Empathy not centered on the Subject?This paper investigates the emergence of the term “empathy” in Merleau-Ponty’s texts. It points out that the concept is not primarly introduced as an epistemological category, questioning if and how eventually we can know the others. On the contrary it is meant as an ontological category, in order to say our belonging to a common nature. From this point of view he proposes a sensible way to understanding the others, based on a bodily closeness and sharing.But, with references to the current debate, the text suggests that in the reflections of the French phenomenologist it is possible to find a not subjectively centered paradigm for understandig empathy – that is a paradigm which does not always presuppose a subjective projection of my sensibility on that of the other ones. It can rather both consist in a common, prepersonal feeling, costituting the background of our conscious sensitivities, and proceed from the other human being to me, so that I often feel and understand myself by differing from the other individuals, who impose themselves on my senses and on my words. (shrink)

The first work to offer a comprehensive pragmatist anthropology focusing on sensibility, habits, and human experience as contingently yet irreversibly enlanguaged.

Recent discussions in the philosophy of biology have brought into question some fundamental assumptions regarding evolutionary processes, natural selection in particular. Some authors argue that natural selection is nothing but a population-level, statistical consequence of lower-level events (Matthen and Ariew [2002]; Walsh et al. [2002]). On this view, natural selection itself does not involve forces. Other authors reject this purely statistical, population-level account for an individual-level, causal account of natural selection (Bouchard and Rosenberg [2004]). I argue that each of these (...) positions is right in one way, but wrong in another; natural selection indeed takes place at the level of populations, but it is a causal process nonetheless. (shrink)

The latter half of the twentieth century has been marked by debates in evolutionary biology over the relative significance of natural selection and random drift: the so-called “neutralist/selectionist” debates. Yet John Beatty has argued that it is difficult, if not impossible, to distinguish the concept of random drift from the concept of natural selection, a claim that has been accepted by many philosophers of biology. If this claim is correct, then the neutralist/selectionist debates seem at best futile, and at worst, (...) meaningless. I reexamine the issues that Beatty raises, and argue that random drift and natural selection, conceived as processes, can be distinguished from one another. (shrink)

Even if Peirce were well understood and there existed· general agreement among Peirce scholars on what he meant by his semiotics, or philosophy of signs, the undertaking of this book-wliich intends to establish a theoretical foundation for a new approach to understanding the interrelations of law, economics, and politics against referent systems of value-would be a risky venture. But since such general agreement on Peirce's work is lacking, one's sense of adventure in ideas requires further qualification. Indeed, the proverbial nerve (...) for failure must in any case be attendant. If one succeeds, one has introduced for further inquiry the strong possibility that should our social systems of law, economics, and politics---our means of interpersonal transaction as a whole-be understood against the theoretical back ground of a dynamic, "motion-picture" universe that is continually becoming, that is infinitely developing and changing in response to genuinely novel elements that emerge as existents, then the basic concepts of rights, resources, and reality take on new dimensions of meaning in correspondence with n-dimensional, infinite value judgments or truth-like beliefs which one holds. If such a view, as Peirce maintained, were possible and tenable not only for philosophy but as the basis for action and interaction in the world of human experience and practical affairs, one would readily say that risk taking is a small price for the realization of such possibility. (shrink)

Biologists studying ecology and evolution use the term “population” in many different ways. Yet little philosophical analysis of the concept has been done, either by biologists or philosophers, in contrast to the voluminous literature on the concept of “species.” This is in spite of the fact that “population” is arguably a far more central concept in ecological and evolutionary studies than “species” is. The fact that such a central concept has been employed in so many different ways is potentially problematic (...) for the reason that inconsistent usages (especially when the usage has not been made explicit) might lead to false controversies in which disputants are simply talking past one another. However, the inconsistent usages are not the only, or even the most important reason to examine the concept. If any set of organisms is legitimately called a “population,” selection and drift processes become purely arbitrary, too. Moreover, key ecological variables, such as abundance and distribution, depend on a nonarbitrary way of identifying populations. I sketch the beginnings of a population concept, drawing inspiration from the Ghiselin-Hull individuality thesis, and show why some alternative approaches are nonstarters. (shrink)

Several scholars have highlighted the importance of examining moral disengagement in understanding aggression and deviant conduct across different contexts. The present study investigates the role of MD as a specific social-cognitive construct that, in the organizational context, may intervene in the process leading from stressors to counterproductive work behavior. Assuming the theoretical framework of the stressor-emotion model of CWB, we hypothesized that MD mediates, at least partially, the relation between negative emotions in reaction to perceived stressors and CWB by promoting (...) or justifying aggressive responses to frustrating situations or events. In a sample of 1,147 Italian workers, we tested a structural equations model. The results support our hypothesis: the more workers experienced negative emotions in response to stressors, the more they morally disengaged and, in turn, enacted CWB. (shrink)

This article extends property-owning democracy to the digital realm and introduces “data-owning democracy,” a new political economic regime characterized by the wide distribution of data as capital among citizens. Drawing on republican theory and acknowledging data's unique role in the digital economy, it proposes a two-tier model that combines different modes of data ownership and corresponding rights. The first layer of “data-owning democracy” is characterized by a digital public infrastructure that enables citizens to collectively generate data and have a say (...) in how their citizen data are used. In the second layer, individuals automatically receive machine-readable copies of their data whenever they are generated—a slightly more advanced form of the European Union's existing right to data portability (Art. 20). With its focus on empowerment, data-owning democracy is designed to be complementary to existing data protection regulations. It also illustrates how political theory more broadly, and republican theory specifically, can be instructive for specifying the normative components of a new political economy dealing with questions of empowerment and digital rights. (shrink)

This paper aims to illustrate one of the primary goals of the philosophy of biology⎯namely, the examination of central concepts in biological theory and practice⎯through an analysis of the concepts of population and metapopulation in evolutionary biology and ecology. I will first provide a brief background for my analysis, followed by a characterization of my proposed concepts: the causal interactionist concepts of population and metapopulation. I will then illustrate how the concepts apply to six cases that differ in their population (...) structure; this analysis will also serve to flesh out and defend the concepts a bit more. Finally, I will respond to some possible questions that my analysis may have raised and then conclude briefly. (shrink)

The literature has suggested that to understand the diffusion of unethical conduct in the workplace, it is important to investigate the underlying processes sustaining engagement in misbehaviour and to study what occurs during vocational education. Drawing on social-cognitive theory, in this study, we longitudinally examined the role of two opposite dimensions of the self-regulatory moral system, regulatory self-efficacy and moral disengagement, in influencing academic cheating behaviour. In addition, in line with the theories highlighting the bidirectional relationship between cognitive processes and (...) behaviour, we aimed to also examine the reciprocal influence of behaviour on these dimensions over time. Overall, no previous studies have examined the longitudinal interplay between these variables. The sample included 866 nursing students who were assessed three times annually from the beginning of their vocational education. The findings from a cross-lagged model confirmed that regulatory self-efficacy and moral disengagement have opposite influences on cheating behaviour, that regulatory self-efficacy negatively influences not only the engagement in misconduct but also the justification mechanisms that allow the divorce between moral standards and action, and that moral disengagement and cheating behaviour reciprocally support each other over time. Specifically, not only did moral disengagement influence cheating behaviour even when controlling for its prior levels, but also cheating behaviour affected moral disengagement one year later, controlling for its prior levels. These findings suggest that recourse to wrongdoing could gradually lead to further normalising this kind of behaviour and morally desensitising individuals to misconduct. (shrink)

It is well known that John Dewey was very far from embracing the traditional idea of cognition as something happening inside one’s own mind and consisting in a pictorial representation of the alleged purely external reality out there. His position was largely convergent with enactivist accounts of cognition as something based in life and consisting in human actions within a natural environment. The paper considers Dewey’s conception of cognition by focusing on its potential contributions to the current debate with enactivism. (...) It claims that Dewey’s anti-substantial, continuistic, and emergentistic conception of the mind as a typically human conduct pulls the rug out of the idea of cognition as representation, as well as pushes the current discussion towards a serious reconsideration of representationalist assumptions about conceptuality and language. The paper emphasises that Dewey—differently from enactivists—frames the role of cognition within experience: he argues that cognition concerns those intermediate phases of our experiences of the world which are characterised by an indeterminate or troubled situation, because he claims that human beings’ interactions with their own environment are qualitatively richer and broader than cognition, including as they do many different and intertwined modes of experience. Finally, the author suggests that a coherent development of Dewey’s lines of thought should avoid rigid distinctions and hierarchies between lower and higher degrees of cognition in humans, which are still maintained in certain forms of radical enactivism. Differently, we should consider the impact of the cultural and broadly linguistic configuration of the human–environment even on perception, motor action, and affective sensibility. (shrink)

In all disciplines there are specifiable basic concepts, our universes of discourse, which define special areas of inquiry. Semiotics is that 'science of sciences' which inquires into all processes of inquiry, and which seeks to discover methods of inquiry. Peirce held that semiotics was to be the method of methods. An account of semiotic method should distinguish between the way the term 'sign' is used in semiotics and the various ways this term was meant in nearly all the traditional disciplines. (...) In this monograph Roberta Kevelson minutely explores Charles S. Peirce's method of methods. (shrink)

Biologists and philosophers have offered differing concepts of biological race. That is, they have offered different candidates for what a biological correlate of race might be; for example, races might be subspecies, clades, lineages, ecotypes, or genetic clusters. One thing that is striking about each of these proposals is that they all depend on a concept of population. Indeed, some authors have explicitly characterized races in terms of populations. However, including the concept of population into concepts of race raises three (...) puzzles, all having to do with time. In this paper, I extend the causal interactionist population concept (CIPC) by introducing some simple assumptions about how to understand populations through time. These assumptions help to shed light on the three puzzles, and in the process show that if we want to understand races in terms of populations, we will need to revise our concept(s) of race. (shrink)

Biologists and philosophers have been extremely pessimistic about the possibility of demonstrating random drift in nature, particularly when it comes to distinguishing random drift from natural selection. However, examination of a historical case-Maxime Lamotte's study of natural populations of the land snail, Cepaea nemoralis in the 1950s - shows that while some pessimism is warranted, it has been overstated. Indeed, by describing a unique signature for drift and showing that this signature obtained in the populations under study, Lamotte was able (...) to make a good case for a significant role for drift. It may be difficult to disentangle the causes of drift and selection acting in a population, but it is not impossible. (shrink)

Evolutionary theory (ET) is teeming with probabilities. Probabilities exist at all levels: the level of mutation, the level of microevolution, and the level of macroevolution. This uncontroversial claim raises a number of contentious issues. For example, is the evolutionary process (as opposed to the theory) indeterministic, or is it deterministic? Philosophers of biology have taken different sides on this issue. Millstein (1997) has argued that we are not currently able answer this question, and that even scientific realists ought to remain (...) agnostic concerning the determinism or indeterminism of evolutionary processes. If this argument is correct, it suggests that, whatever we take probabilities in ET to be, they must be consistent with either determinism or indeterminism. This raises some interesting philosophical questions: How should we understand the probabilities used in ET? In other words, what is meant by saying that a certain evolutionary change is more or less probable? Which interpretation of probability is the most appropriate for ET? I argue that the probabilities used in ET are objective in a realist sense, if not in an indeterministic sense. Furthermore, there are a number of interpretations of probability that are objective and would be consistent with ET under determinism or indeterminism. However, I argue that evolutionary probabilities are best understood as propensities of population-level kinds. (shrink)

When philosophers of physics explore the nature of chance, they usually look to quantum mechanics. When philosophers of biology explore the nature of chance, they usually look to microevolutionary phenomena, such as mutation or random drift. What has been largely overlooked is the role of chance in macroevolution. The stochastic models of paleobiology employ conceptions of chance that are similar to those at the microevolutionary level, yet different from the conceptions of chance often associated with quantum mechanics and Laplacean determinism.

I argue that the propensity interpretation of fitness, properly understood, not only solves the explanatory circularity problem and the mismatch problem, but can also withstand the Pandora’s box full of problems that have been thrown at it. Fitness is the propensity (i.e., probabilistic ability, based on heritable physical traits) for organisms or types of organisms to survive and reproduce in particular environments and in particular populations for a specified number of generations; if greater than one generation, “reproduction” includes descendants of (...) descendants. Fitness values can be described in terms of distributions of propensities to produce varying number of offspring and can be modeled for any number of generations using computer simulations, thus providing both predictive power and a means for comparing the fitness of different phenotypes. Fitness is a causal concept, most notably at the population level, where fitness differences are causally responsible for differences in reproductive success. Relative fitness is ultimately what matters for natural selection. (shrink)

The “land community” (or “biotic community”) that features centrally in Aldo Leopold’s Land Ethic has typically been equated with the concept of “ecosystem.” Moreover, some have challenged this central Leopoldean concept given the multitude of meanings of the term “ecosystem” and the changes the term has undergone since Leopold’s time (see, e.g., Shrader-Frechette 1996). Even one of Leopold’s primary defenders, J. Baird Callicott, asserts that there are difficulties in identifying the boundaries of ecosystems and suggests that we recognize that their (...) boundaries are determined by scientific questions ecologists pose (Callicott 2013). I argue that we need to rethink Leopold’s concept of land community in the following ways. First, we should recognize that Leopold’s views are not identical to those of his contemporaries (e.g., Clements, Elton), although they resemble those of some subsequent ecologists, including some of our contemporaries (e.g., O’Neill 2001, Post et al. 2007, Hastings and Gross 2012). Second, the land community concept does not map cleanly onto the concept of “ecosystem”; it also incorporates elements of the “community” concept in community ecology by emphasizing the interactions between organisms and not just the matter/energy flow of the ecosystem concept. Third, the boundary question can be illuminated by considering some of the recent literature on the nature of biological individuals (in particular, Odenbaugh 2007; Hamilton, Smith, and Haber 2009; Millstein 2009), focusing on concentrations of causal relations as determinative of the boundaries of the land community qua individual. There are challenges to be worked out, particularly when the interactions of community members do not map cleanly onto matter/energy flows, but I argue that these challenges can be resolved. The result is a defensible land community concept that is ontologically robust enough to be a locus of moral obligation while being consistent with contemporary ecological theory and practice. (shrink)