ZusammenfassungDas Ziel des vorliegenden Beitrags besteht darin, einige ethische Implikationen des weltweiten „outsourcing“ von Heil- und Pflegeleistungen auf dem globalen Gesundheitsmarkt aufzuzeigen. Das Augenmerk richtet sich dabei nicht allein auf die Inanspruchnahme medizinischer Leistungen in der nördlichen Erdhälfte durch eine Klientel aus der südlichen Erdhälfte und umgekehrt. Stattdessen sollen vor allem transkulturelle Facetten des Medizintourismus beleuchtet werden, die mit der gegenseitigen Konfrontation verschiedener Medizinkonzepte und dem Aufeinandertreffen unterschiedlicher kultur- und geschichtsdependenter medizinischer Vorstellungen verbunden sind. Der vorliegende Beitrag legt ein besonderes (...) Augenmerk auf den Umgang mit kulturellen Differenzen im Medizintourismus. Dabei soll die These vertreten werden, dass die Behandlung kultureller Differenz im Rahmen des weltweit florierenden Medizintourismus eine Fortsetzung bereits etablierter und verfestigter Praktiken des Kolonialismus und Neokolonialismus darstellt. Der Beitrag hebt somit auf Mechanismen kultureller Vereinnahmung und sowohl ideelle als auch materielle Verwertungspraktiken von Gesundheitsleistungen, traditioneller Medizin und Biodiversität ab. (shrink)

In a critical review of late twentieth-century gene-culture co-evolutionary models labelled as ‘global phylogeny’, the authors present evidence for the long legacy of co-evolutionary theories in European-based thinking, highlighting that (1) ideas of social and cultural evolution preceded the idea of biological evolution, (2) linguistics played a dominant role in the formation of a unified theory of human co-evolution, and (3) that co-evolutionary thinking was only possible due to perpetuated and renewed transdisciplinary reticulations between scholars of different disciplines—especially within the (...) integrative framework of the ‘humanid’ and the ‘hominid’ branches of anthropology. (shrink)

In a critical review of late twentieth-century gene-culture co-evolutionary models labelled as ‘global phylogeny’, the authors present evidence for the long legacy of co-evolutionary theories in European-based thinking, highlighting that (1) ideas of social and cultural evolution preceded the idea of biological evolution, (2) linguistics played a dominant role in the formation of a unified theory of human co-evolution, and (3) that co-evolutionary thinking was only possible due to perpetuated and renewed transdisciplinary reticulations between scholars of different disciplines—especially within the (...) integrative framework of the ‘humanid’ and the ‘hominid’ branches of anthropology. (shrink)

Die {raquo}Revolution der Denkart{laquo} hat nicht nur den Anlauf genommen, welchem sie ihren Namen verdankt.! Gezahlt werden noch weitere Umstellungen der Theorie bildung als bloG die kopernikanische Kants. Hier interessieren gleich zwei. Die eine liefert den Gegenstand, die entsprechende, RevolutionPhanomenologie.

Does the universe embody beautiful ideas? Artists as well as scientists throughout human history have pondered this "beautiful question." With Nobel laureate Frank Wilczek as your guide, embark on a voyage of related discoveries, from Plato and Pythagoras up to the present. Wilczek's groundbreaking work in quantum physics was inspired by his intuition to look for a deeper order of beauty in nature. In fact, every major advance in his career came from this intuition: to assume that the universe (...) embodies beautiful forms, forms whose hallmarks are symmetry--harmony, balance, proportion--and economy. There are other meanings of "beauty," but this is the deep logic of the universe--and it is no accident that it is also at the heart of what we find aesthetically pleasing and inspiring. As he reveals here, this has been the heart of scientific pursuit from Pythagoras, the ancient Greek who was the first to argue that "all things are number," to Galileo, Newton, Maxwell, Einstein, and into the deep waters of twentieth-century physics. Gorgeously illustrated, A Beautiful Question is a mind-shifting book that braids the age-old quest for beauty and the age-old quest for truth into a thrilling synthesis. Yes: the world is a work of art, and its deepest truths are ones we already feel, as if they were somehow written in our souls.--From publisher description. (shrink)

One of our great contemporary scientists presents ten insights that illuminate what every thinking person needs to know about what the world is and how it works. Nobel Prize winner Frank Wilczek's Fundamentals is built around a simple but profound idea: the models of the world we construct as children are practical and adequate for everyday life, but they do not bring in the surprising and mind-expanding revelations of modern science. To do that, we must look at the world (...) anew, combining clear thinking with an openness to wonder. This "born again" world is in many ways larger, fuller, and much stranger than it appears. Through an exploration of space, time, matter, and ideas--and equipped with facts, questions, and brilliant speculations--Wilczek guides us through the past, present, and future of fundamental science. Readers will emerge with an expanded vision of our universe. Author Bio: Frank Wilczek won the Nobel Prize in Physics in 2004 for work he did as a graduate student. He was among the earliest MacArthur fellows, and has won many awards both for his scientific work and his writing. He is the author of A Beautiful Question, The Lightness of Being, Fantastic Realities, Longing for the Harmonies, and hundreds of articles in leading scientific journals. His "Wilczek's Universe" column appears regularly in the Wall Street Journal. Wilczek is the Herman Feshbach Professor of Physics at the Massachusetts Institute of Technology, founding director of the T. D. Lee Institute and chief scientist at the Wilczek Quantum Center in Shanghai, China, and a distinguished professor at Arizona State University and Stockholm University. (shrink)

Der Übergang vom Verhältnisbewußtsein zum Selbstbewußtsein kann unmöglich nur vom Verhältnisbewußtsein aus gedacht werden, weil wir uns eine Welt, in der das Bewubtsein unserer selbst verteilt ist auf die Dimensionen der Handlung vor deren Zentrierung in uns, gar nicht vorstellen können. Jedes Tableau der Handlungsmöglichkeiten, so abstrakt es auch abgefaßt sein mag, ist gebunden an Vorstellungen möglicher Handlungssubjekte, denen wir Handlungsmöglichkeiten zuschreiben. Handlungstheorie ist daher notwendig Reflexion unserer Praxis, in der wir uns selbst als Selbstbewußtsein erfahren, das seinem Verhältnisbewubtsein enthoben (...) ist, ohne dieses dadurch selbst schon aufzuheben zu können. Daß uns Freiheit im Handeln unaufhebbar prekär und problematisch bleiben mub, ist die Grundvoraussetzung dafür, dab wir Handlungstheorien historisch und bereichsbezogen ständig neu entwerfen müssen. Das Verhältnis von Handlungsphilosophie zu Handlungstheorien kann daher so gefaßt werden, daß Handlungsphilosophie die Grundbegrifflichkeit in kritischer Absicht bereitstellt, die den bereichsorientierten, mehr oder weniger deskriptiven Handlungstheorien abgehen muß. Dazu muß die ontologische Differenz von Handlung und Interpretation methodologisch ernst genommen werden. Die radikale Andersheit der hier zu begründenden Konzeption liegt vor allem in der Ansicht, daß Handlungen nicht als isolierbare Ereignis-Entitäten aufgefaßt werden können, die gegenüber der »Welt der Tatsachen des Bewußtseins« eine kausale, d.h. von der Welt des Bewußtseins abgetrennte Rolle übernehmen. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Ideas 61.2 (2000) 263-283 [Access article in PDF] Contesting Metaphors and the Discourse of Consciousness in William James Jill M. Kress Ah, not to be cut off,not by such slight partitionto be excluded from the stars' measure.What is inwardness?What if not sky intensified,flung through with birds and deepwith winds of homecoming? --Rainer Maria Rilke William James's lifelong attention to questions about human mental experience (...) elucidates the development of the concept of consciousness through its realization in fields as disparate as natural science, radical empiricism, and religious mysticism. 1 Over the course of a career that both establishes and traverses disciplinary boundaries, James's work embodies tensions between scientific explanations for mental phenomena and the inescapability of metaphysical arguments. Jamesian psychology thus alternates between materialist and spiritualist assumptions of scientists and philosophers at the turn of the century, joining their compulsive investigations into the nature of consciousness. 2 Most readers [End Page 263] of James puzzle over the theoretical contradictions within his work, debating central philosophical dilemmas concerning the status of the conscious self. Perhaps the most paradoxical aspect of James's theories, his response to dualism, emerges as he attempts to negotiate ethereal explanations for consciousness with bodily processes. 3 The mind-body problem disrupts James's more delicately balanced theories, a disruption registered explicitly through the metaphors in his texts.Reading The Principles of Psychology (1890) alongside "Does 'Consciousness' Exist" (1904), this essay demonstrates how figurative language directs James's study of consciousness. I argue that metaphor does more than describe consciousness; metaphor constructs James's arguments, governs his conflicting theories of mind through a series of rhetorical configurations and provokes the continual reconstruction of his ideas of human subjectivity. Furthermore, while it is impossible for James to explain and to study consciousness without metaphor, he experiences great anxiety about using language, figurative or otherwise, to represent his object of study. The language becomes more powerful than his intentions or designs and, indeed, raises implications that James cannot control. James possesses a heightened awareness of what he crafts with words; he also, perhaps more penetratingly, acknowledges the inadequacy of any linguistic system to realize concepts thoroughly. 4 Struggling over appropriate "names" and "terms" for consciousness, James presupposes some clearly delineated concept around which we might wrap a verbal expression; yet he also seems painfully aware that every new metaphor launches an entirely new theory. Fluid and unpredictable, consciousness becomes like language itself, yielding its power precisely because it can be so many things at once. The ultimate principle of Jamesian consciousness seems to be its creative capacity; still, once James admits that the problem of consciousness is a problem of language, his carefully constructed designs begin to unravel. Though consciousness will be translated into James's notion of "pure experience" by the time he writes the radical empiricism [End Page 264] essays, James remains simultaneously committed to his figures (especially of the "stream of consciousness") and ambivalent about the account of consciousness that they provide. James helps create the modern self with its enhanced individuality, though his metaphors at once direct us inward to a centered, private self and propel us outward to find consciousness materializing in the fluxional cycle of the natural world.In presenting his initial theory of the stream of our thoughts, James argues for its coherence. His most famous metaphor of the "stream" of consciousness appears to saturate the varied material of the mind, its water washing over and through any distinctions or separations which the mind might present: Consciousness, then, does not appear to itself chopped up in bits. Such words as "chain" or "train" do not describe it fitly as it presents itself in the first instance. It is nothing jointed; it flows. A "river" or a "stream" are the metaphors by which it is most naturally described. In talking of it hereafter, let us call it the stream of thought, of consciousness, or of subjective life. 5James's desire to find words that are more "natural... (shrink)

**** Reprint of the Indiana U. Press edition of 1966--which is cited in BCL3. Annotation copyright by Book News, Inc., Portland, OR.

Although declarations of the death of God seem to be provocations announcing the end of the era of theology, this announcement is actually central to the Christian revelation in its most classic forms, as well as to its reworkings in contemporary religious thought. Indeed provocative new possibilities for thinking theologically open up precisely in the wake of the death of God. Already Hegel envisaged a revolutionary new realization of divinity emerging in and with the secular world through its establishment of (...) a total order of immanence. However, in postmodern times this comprehensive order aspired to by modern secularism implodes or cracks open towards the wholly Other. A hitherto repressed demand for the absolute difference of the religious, or for “transcendence”, returns with a vengeance. This difference is what could not be stated in terms of the Hegelian System, for reasons that poststructuralist writers particularly have insisted on: all representations of God are indeed dead. Yet this does not mean that they cannot still be powerful, but only that they cannot assign God any stable identity. Nietzsche’s sense of foreboding concerning the death of God is coupled with his intimations of the demise of representation and “grammar” as epistemologically bankrupt, but also with his vision of a positive potential for creating value in the wake of this collapse of all linguistically articulated culture. He points the way towards the emergence of a post-secular religious thinking of what exceeds thought and representation. (shrink)

Among the metaphors used in the target article are “musical instruments,” “water waves,” and other types of mechanical oscillators. The corresponding equations have inertial properties and lead to standing waves that depend on boundary conditions. Other, physiologically relevant quantities like refractory times are not contained in the mechanical oscillator model but occur naturally, for instance, in biological forest fire metaphors.

The target article provides stimulating evidence for culture in cetaceans but does not provide a coherent theoretical framework. We argue that a complex, adaptive systems approach not only can provide such a framework but also can contribute advanced data analysis and simulation methods. For humpback whale songs, we suggest the framework of to model the observed spatio-temporal dynamics.

According to the predictive coding theory of psychosis, hallucinations and delusions are explained by an overweighing of high-level prior expectations relative to sensory information that leads to false perceptions of meaningful signals. However, it is currently unclear whether the hypothesized overweighing of priors represents a pervasive alteration that extends to the visual modality and takes already effect at early automatic processing stages. Here, we addressed these questions by studying visual perception of socially meaningful stimuli in healthy individuals with varying degrees (...) of psychosis proneness. In a first task, we quantified participants’ prior for detecting faces in visual noise using a Bayesian decision model. In a second task, we measured participants’ prior for detecting direct gaze stimuli that were rendered invisible by continuous flash suppression. We found that the prior for detecting faces in noise correlated with hallucination proneness as well as delusion proneness. The prior for detecting invisible direct gaze was significantly associated with hallucination proneness but not conclusively with delusion proneness. Our results provide evidence for the idea that overly strong high-level priors for automatically detecting socially meaningful stimuli might constitute a processing alteration in psychosis. (shrink)

In the context of discovery-oriented hypothesis testing research, behavioral scientists widely accept a convention for false positive (α) and false negative error rates (β) proposed by Jacob Cohen, who deemed the general relative seriousness of the antecedently accepted α = 0.05 to be matched by β = 0.20. Cohen’s convention not only ignores contexts of hypothesis testing where the more serious error is the β-error. Cohen’s convention also implies for discovery-oriented hypothesis testing research that a statistically significant observed effect is (...) four times more probable to be a mistaken discovery than for a statistically significant true observed effect to be independently replicable. In the long run, Cohen’s convention thus is epistemically harmful to the development of a progressive science of human behavior, making its acceptance crucial in explaining the replication crisis in behavioral science. The balance between α- and β-errors generally ought to be struck using both epistemic and practical considerations. Yet epistemic considerations alone imply that making a genuine contribution to the body of knowledge in behavioral science requires error rates that are not only small but also symmetrical. (shrink)

First published in 2000. Routledge is an imprint of Taylor & Francis, an informa company.

To find more information about Rowman and Littlefield titles, please visit www.rowmanlittlefield.com.

Frank Ramsey was the greatest of the remarkable generation of Cambridge philosophers and logicians which included G. E. Moore, Bertrand Russell, Ludwig Wittgenstein and Maynard Keynes. Before his tragically early death in 1930 at the age of twenty-six, he had done seminal work in mathematics and economics as well as in logic and philosophy. This volume, with a new and extensive introduction by D. H. Mellor, contains all Ramsey's previously published writings on philosophy and the foundations of mathematics. The (...) latter gives the definitive form and defence of the reduction of mathematics to logic undertaken in Russell and Whitehead's Principia Mathematica; the former includes the most profound and original studies of universals, truth, meaning, probability, knowledge, law and causation, all of which are still constantly referred to, and still essential reading for all serious students of these subjects. (shrink)

This article rebuts Ramsey's earlier theory, in 'Universals of Law and of Fact', of how laws of nature differ from other true generalisations. It argues that our laws are rules we use in judging 'if I meet an F I shall regard it as a G'. This temporal asymmetry is derived from that of cause and effect and used to distinguish what's past as what we can know about without knowing our present intentions.

" In the generations since, its influence has grown-today it is accepted as a classic of general jurisprudence.The work is a bold and persuasive attack on the ...

The purpose of this paper is to investigate some problems of using finite (or *finite) computational arguments and of the nonstandard notion of an infinitesimal. We will begin by looking at the canonical example illustrating the distinction between classical and constructive analysis, the Intermediate Value Theorem.

In this paper, I consider the relationship between Inference to the Best Explanation and Bayesianism, both of which are well-known accounts of the nature of scientific inference. In Sect. 2, I give a brief overview of Bayesianism and IBE. In Sect. 3, I argue that IBE in its most prominently defended forms is difficult to reconcile with Bayesianism because not all of the items that feature on popular lists of “explanatory virtues”—by means of which IBE ranks competing explanations—have confirmational import. (...) Rather, some of the items that feature on these lists are “informational virtues”—properties that do not make a hypothesis \ more probable than some competitor \ given evidence E, but that, roughly-speaking, give that hypothesis greater informative content. In Sect. 4, I consider as a response to my argument a recent version of compatibilism which argues that IBE can provide further normative constraints on the objectively correct probability function. I argue that this response does not succeed, owing to the difficulty of defending with any generality such further normative constraints. Lastly, in Sect. 5, I propose that IBE should be regarded, not as a theory of scientific inference, but rather as a theory of when we ought to “accept” H, where the acceptability of H is fixed by the goals of science and concerns whether H is worthy of commitment as research program. In this way, IBE and Bayesianism, as I will show, can be made compatible, and thus the Bayesian and the proponent of IBE can be friends. (shrink)

In this paper, I offer an analysis of the radical disagreement over the adequacy of string theory. The prominence of string theory despite its notorious lack of empirical support is sometimes explained as a troubling case of science gone awry, driven largely by sociological mechanisms such as groupthink (e.g. Smolin 2006). Others, such as Dawid (2013), explain the controversy by positing a methodological revolution of sorts, according to which string theorists have quietly turned to nonempirical methods of theory assessment given (...) the technological inability to directly test the theory. The appropriate response, according to Dawid, is to acknowledge this development and widen the canons of acceptable scientific methods. As I’ll argue, however, the current situation in fundamental physics does not require either of these responses. Rather, as I’ll suggest, much of the controversy stems from a failure to properly distinguish the “context of justification” from the “context of pursuit”. Both those who accuse string theorists of betraying the scientific method and those who advocate an enlarged conception of scientific methodology objectionably conflate epistemic justification with judgements of pursuit-worthiness. Once we get clear about this distinction and about the different norms governing the two contexts, the current situation in fundamental physics becomes much less puzzling. After defending this diagnosis of the controversy, I’ll show how the argument patterns that have been posited by Dawid as constituting an emergent methodological revolution in science are better off if reworked as arguments belonging to the context of pursuit. (shrink)

A defense of material implication as implication.

We develop a Bayesian framework for thinking about the way evidence about the here and now can bear on hypotheses about the qualitative character of the world as a whole, including hypotheses according to which the total population of the world is infinite. We show how this framework makes sense of the practice cosmologists have recently adopted in their reasoning about such hypotheses.

In Physics 2.4–6, Aristotle offers an account of things that happen “by luck” and “spontaneously”. Many of these things are what we might think of as “lucky breaks”: cases where things go well for us, even though we don’t expect them to. In Physics 2.5, Aristotle illustrates this idea with the case of a man who goes to the market for some reason unrelated to collecting a debt he is owed. While he is there, this man just so happens to (...) run into his debtor and get his money back—which is what he “wanted” all along. This case has a number of features that have proved puzzling. Most notably, Aristotle seems to think that while “it happened accidentally to him to come and to do this for the sake of getting the money”, nevertheless the man “did not come for the sake of this”—though he “would have”. What must such a proceeding be like to be described in these ways? Physics 2.4–6 makes several important moves towards answering this question. One of them—among the earliest and seemingly a foundational one—is the claim that “for the sake of something are as many things as could be done by thought and by nature”. The aim of this paper is to identify the role that this claim plays in Aristotle’s account of spontaneous proceedings. It defends two main claims. First, Aristotle’s suggestion that spontaneous proceedings could be done by nature and by thought is the product of a more general strategy. His approach is to sketch an intuitive pattern of explanation for proceedings that happen for the sake of something in the ordinary—non-spontaneous—way, and then to try to extend that model to the case of things that do so spontaneously, preserving as much of it as possible. Applying this strategy reveals that whereas nature and thought in fact function as efficient causes of ordinary proceedings that are for the sake of something, this cannot be the case in spontaneous ones. Instead, nature and thought could function as their causes. Second, I argue that Aristotle’s implementation of this strategy is rooted in his account of causation and especially Physics 2.3’s list of “modes” of causes. When he claims that spontaneous proceedings “could” be done by nature and by thought, he is saying that nature and thought are their efficient causes in capacity. In the practical case, spontaneous proceedings are caused by agents who have certain capacities, connected with their desires and abilities. In the right circumstances, these agents would actively exercise those capacities in acting for the sake of a given end. (shrink)

[penultimate draft; prepared for publication in Aristotle’s Parts of Animals: A Critical Guide, ed. Sophia Connell – please cite final version] -/- Parts of Animals II.10 makes a new beginning in Aristotle’s study of animals. In it, Aristotle proposes to “now speak as if we are once more at an origin, beginning first with those things that are primary” (655b28-9). This is the start of his account of the non-uniform parts of blooded animals: parts such as eyes, noses, mouths, etc., (...) as opposed to uniform parts like blood and flesh. PA II.10 proposes a new strategy for studying these parts: “one ought to speak about the human kind first” (656a10). Beginning “first” with the “primary” things thus amounts to beginning with humans (655b28-9). -/- Why does Aristotle think this strategy is appropriate for his project? One answer is that it reflects a fundamental anthropocentrism. Lloyd, for instance, has raised the possibility that the basic assumptions that guide Aristotle’s biology may to some extent reflect the anthropocentrism of his culture, where the relation of humans to animals was “a preoccupation of popular beliefs”. In this paper, I develop an interpretation that both builds on and challenges this suggestion. I do so by investigating how Aristotle thinks this strategy works in theory and in practice: his justifications for adopting it and its interaction with his scientific commitments. I argue that Aristotle adopts it in part because he thinks that humans are such that his scientific concepts apply to them in a particularly clear way. (This too is a form of anthropocentrism: one that might be resisted by arguing that humans are not the best illustrations of these concepts—that Aristotle ought to look elsewhere for models with the features he desires.) -/- More specifically, Aristotle holds that starting with humans helps establish the causal explanations of the parts of other animals, particularly when they are recalcitrant. What makes humans suitable for this role is a special teleological relation between their parts and the ends they serve: in humans, he supposes, this connection is particularly tight (in a way I explain below). Consequently, Aristotle thinks he can use humans to illuminate which sorts of features tend to be for the sake of which ends, and then extend the results of this inquiry to the parts of the other animals. (shrink)

Aristotle contrasts standard animal generation with ‘spontaneous generation’, which happens when some material putrefies and gives rise to a new organism. This paper addresses two interrelated puzzles about spontaneous generation. First, is it of the same ‘fundamental kind’ of causal process as standard generation? Second, is it ‘spontaneous’, as understood in Physics 2.4–6: rare, accidentally caused, and among things that are for the sake of something? I argue that both puzzles turn on the same questions about the process types involved. (...) I show that the type putrefaction plays a more important role in spontaneous generation than has been recognized so far. Because putrefaction does not play this role in standard generation, the two processes are of different ‘fundamental’ kinds. Moreover, spontaneous generation happens rarely in that it is rare for processes of putrefaction to happen in such a way that they can also be described in terms of concoction. (shrink)

Frank Palmeri sees the conjectural histories of Rousseau, Hume, Herder, and other Enlightenment philosophers as a template for the development of the social sciences in the nineteenth and early twentieth centuries. Without documents or memorials, these thinkers, he argues, employed conjecture to formulate a naturalistic account of society's commercial and secular progression. This approach can be traced in the work of political economists, anthropologists, sociologists, and sociologists of religion, and its speculative framework creates a surprising ambivalence toward modernity in (...) these disciplines. In addition, Palmeri shows that conjectural histories by Darwin and Nietzsche opened the way to new disciplines in the late twentieth century. (shrink)

I offer a fresh interpretation of the dialectical strategy of Physics 2.8’s arguments that things in nature happen for the sake of something. Whereas many recent interpreters have concluded that these arguments inevitably beg the question against Aristotle’s opponents, I argue that they constitute a careful attempt to build common ground with an opponent who rejects Aristotle’s basic worldview. This common ground, first articulated in the famous Winter Rain Argument, takes the form of an intriguing pattern of reasoning: that natural (...) proceedings that happen in a given manner always or for the most part do not do so by chance. (shrink)

Volume 52, Issue 9, August 2020, Page 931-936.

Argumentation as the public exchange of reasons is widely thought to enhance deliberative interactions that generate and justify reasonable public policies. Adopting an argumentation-theoretic perspective, we survey the norms that should govern public argumentation and address some of the complexities that scholarly treatments have identified. Our focus is on norms associated with the ideals of correctness and participation as sources of a politically legitimate deliberative outcome. In principle, both ideals are mutually coherent. If the information needed for a correct deliberative (...) outcome is distributed among agents, then maximising participation increases information diversity. But both ideals can also be in tension. If participants lack competence or are prone to biases, a correct deliberative outcome requires limiting participation. The central question for public argumentation, therefore, is how to strike a balance between both ideals. Rather than advocating a preferred normative framework, our main purpose is to illustrate the complexity of this theme. (shrink)

Frank E. Zachos offers a comprehensive review of one of today's most important and contentious issues in biology: the species problem. After setting the stage with key background information on the topic, the book provides a brief history of species concepts from antiquity to the Modern Synthesis, followed by a discussion of the ontological status of species with a focus on the individuality thesis and potential means of reconciling it with other philosophical approaches. More than 30 different species concepts (...) found in the literature are presented in an annotated list, and the most important ones, including the Biological, Genetic, Evolutionary and different versions of the Phylogenetic Species Concept, are discussed in more detail. Specific questions addressed include the problem of asexual and prokaryotic species, intraspecific categories like subspecies and Evolutionarily Significant Units, and a potential solution to the species problem based on a hierarchical approach that distinguishes between ontological and operational species concepts. A full chapter is dedicated to the challenge of delimiting species by means of a discrete taxonomy in a continuous world of inherently fuzzy boundaries. Further, the book outlines the practical ramifications for ecology and evolutionary biology of how we define the species category, highlighting the danger of an apples and oranges problem if what we subsume under the same name ("species") is in actuality a variety of different entities. A succinct summary chapter, glossary and annotated list of references round out the coverage, making the book essential reading for all biologists looking for an accessible introduction to the historical, philosophical and practical dimensions of the species problem. (shrink)