This work applies the competitive exclusion principle and the concept of potential competitors as simple axiomatic tools to generalized situations in ecology. These tools enable apparent competition and its dual counterpart to be explicitly evaluated in poorly understood ecological systems. Within this set-theory framework we explore theoretical symmetries and invariances, De Morgan’s laws, frozen evolutionary diversity and virtual processes. In particular, we find that the exclusion principle compromises the geometrical growth of the number of species. By theoretical (...) extending this principle, we can describe interspecific depredation in the dual case. This study also briefly considers the debated situation of intraspecific competition. The ecological consequences of our findings are discussed; particularly, the use of our framework to reinterpret coupled mathematical differential equations describing certain ecological processes. (shrink)

Studies of coexistence are based ultimately on the assumption that competitive exclusion is a general and accredited phenomenon in nature. However, the ecological and evolutionary impact of interspecific competition is of questionable significance. Review of three reputed examples of competitive exclusion in the field (Aphytis wasps, red and grey squirrels, and triclads) demonstrates that the widely-accepted competition-based interpretations are unlikely, that alternative explanations are overlooked, and that all other reported cases need critical reinvestigation. Although interspecific competition (...) does undoubtedly occur, the evidence suggests it is usually too weak and intermittent a force to achieve competitive exclusion or any other ecologically-significant result, except perhaps rarely and on a minor scale. Coexistence and community structure are therefore not ecological conditions to be especially accounted for, especially since their inherently comparative methods generate information that is largely superficial. Alternative questions that relate directly to species, the units of diversity, are discussed and they emphasize the primary habitat requirements of species, which are fixed during speciation. Neither the comparative approach of coexistence studies, nor the investigation of pattern is likely to be profitable, since the acquisition of species-specific characteristics during speciation requires historical research. At least one alternative theory of ecology, based on the close adaptation of organisms to the environment, is available. (shrink)

Human Papillomavirus (HPV) types are sexually transmitted infections that cause a number of human cancers. According to the competitive exclusion principle in ecology, HPV types that have lower transmission probabilities and shorter durations of infection should be outcompeted by more virulent types. This, however, is not the case, as numerous HPV types co-exist, some which are less transmissible and more easily cleared than others. This paper examines whether this exception to the competitive exclusion principle can be (...) explained by the aggregation of infection with HPV types, which results in patchy spatial distributions of infection, and what implications this has for the effect of vaccination on multiple HPV types. A deterministic transmission model is presented that models the patchy distribution of infected individuals using Lloyd’s mean crowding. It is first shown that higher aggregation can result in a reduced capacity for onward transmission and reduce the required efficacy of vaccination. It is shown that greater patchiness in the distribution of lower prevalence HPV types permits co-existence. This affirms the hypothesis that the aggregation of HPV types provides an explanation for the violation of the competitive exclusion principle. Greater aggregation of lower prevalence types has important implications where type-specific HPV vaccines also offer cross-protection against non-target types. It is demonstrated that the degree of cross-protection can be less than the degree of vaccine protection conferred against directly targeted types and still result in the elimination of non-target types when these non-target types are patchily distributed. (shrink)

The basic idea behind the Competitive Exclusion Principle is that species that have similar or identical niches cannot stably coexist in the same place for long periods of time when their common resources are limiting. A more exact definition of the CEP states that, in equilibrium, n number of sympatric species competing for a common set of limiting resources cannot stably coexist indefinitely on fewer than n number of resources. The magnitude or intensity of competition between species is (...) proportional to the degree of overlap in their niches or use of resources. Species that stably coexist do so because there are “important differences” in their niches or use of common limiting resources. (shrink)

Competition between scientific hypotheses is not always a matter of mutual exclusivity. Consistent hypotheses can compete to varying degrees either directly or indirectly via a body of evidence. We motivate and defend a particular account of hypothesis competition by showing how it captures these features. Computer simulations of Bayesian inference are used to highlight the limitations of adopting mutual exclusivity as a simplifying assumption to model scientific reasoning, particularly due to the exclusion of hypotheses that may be true. We (...) end with a case study demonstrating the subtleties involved in hypothesis competition in scientific practice. (shrink)

The complexity and heterogeneity of causes influencing ecology’s domain challenge its capacity to generate a general theory without exceptions, raising the question of whether ecology is capable, even in principle, of achieving the sort of theoretical success enjoyed by physics. Weber has argued that competition theory built around the Competitive Exclusion Principle (especially Tilman’s resource-competition model) offers an example of ecology identifying a law-like causal regularity. However, I suggest that as Weber presents it, the CEP is not yet (...) a causal regularity. Instead, I argue that the scientific understanding in Tilman’s theory takes a different form. The theory explains through a structure I call “channeling explanation” which does not depend on deduction from general laws, but rather builds on constraints and trade-offs represented in state-space. Recognizing this structure supports the more general point that ecology and other so-called special sciences can reveal novel theoretical approaches to philosophy of science when approached with openness to their uniqueness. (shrink)

This article examines some of the main tenets of competition theory in light of the theory of evolution and the concept of an ecological niche. The principle of competitive exclusion and the related assumption that communities exist at competitive equilibrium - fundamental parts of many competition theories and models - may be violated if non-equilibrium conditions exist in natural communities or are incorporated into competition models. Furthermore, these two basic tenets of competition theory are not compatible with (...) the theory of evolution. Variation in ecologically significant environmental factors and non-equilibrium in population numbers should occur in most natural communities, and such changes have important effects on community relations, niche overlap, and the evolution of ecosystems. Ecologists should view competition as a process occurring within a complexdynamic system, and should be wary of theoretical positions built upon simple laboratory experiments or simplistic mathematical models.In considering the relationship between niche overlap and competition, niche overlap should not be taken as a sufficient condition for competition; many factors may prevent or diminish competition between populations with similar resource utilization patterns. The typically opposing forces of intraspecific and interspecific competition need to be simultaneously considered, for it is the balance between them that in large part determines niche boundaries. (shrink)

Despite the reality of intersex individuals whose biological markers do not necessarily all point towards a traditional binary understanding of either male or female, the vast majority of sports divide competition into categories based on a binary notion of biological sex and develop policies and regulations to police the divide. In so doing, sports governing bodies (SGBs) adopt an imperfect model of biological sex in order to serve their particular purposes, which, typically, will include protecting the fundamental sporting value of (...) fair competition. Yet, one potential consequence of enforcing such an approach would seem to be the exclusion or marginalization of individuals whose biological development does not fit within the binary model, whether due to genetics or through a choice to undergo medical intervention to better represent a chosen gender identity. Any such exclusion or marginalization will inevitably tend to undermine another fundamental value of sport, that of inclusivity. In the context of those with differences of sex development, SGBs appear to be faced with a difficult problem: dealing with a conflict between two fundamental values of sport. Different approaches to this problem have been suggested, with some academics proposing that sports organisations, in general, ought to prioritise fairness above, while others suggest the need to ‘balance’ competing values or even to prioritise inclusion over fairness. However, it is argued that any of these approaches are, in principle, justifiable as any sport should be free to prioritise or balance its own values. What seems more important for any SGB is the need for a rational and transparent justification of regulations that pursue fair competition at the expense of inclusivity. Furthermore, where fair competition and inclusivity are fundamental values, any such justification would seem to demand adherence to some basic norms. First, the regulations should be built on (and articulate) a consistent and principled basis of what ‘fair competition’ means in a particular sport. Second, any regulations should only exclude or restrict participation to the minimum degree necessary to achieve the sense of fair competition so articulated. Third, SGBs should be transparent about what their values are and where their priorities lie so that participants and other stakeholders are able to make an informed choice as to whether they wish to participate in, support, or be associated with a particular sport. With reference to the adoption of the Eligibility Regulations for Athletes with Differences of Sex Development (the ‘DSD Regulations’) by the International Association of Athletic Federations (IAAF), this article seeks to evaluate whether the approach of the IAAF satisfied these basic requirements. (shrink)

Reconsideration of the logistic equation and of its expansion to the special and general Volterra competition equations in terms of mass/energy in phase-space, shows that information on the phase-spatial conditions of resource and consumers determines specific population parameters which, in turn, decide on coexistence and extinction.Thus, introduction ofInformation as a separate and independent biophysical parameter, in analogy, and in addition, to Force in Classical Physics, is necessary. This allows for quantification of informational effects on resource flows and population numbers. As (...) such, different population growth dN/dt during a competitive exclusion process, is theeffect of competition, and not itscause. (shrink)

While concerns of the mental being causally excluded by the physical have persistently plagued non-reductive physicalism, such concerns are standardly taken to pose no problem for reductive type physicalism. Type physicalists have the obvious advantage of being able to countenance the reduction of mental properties to their physical base properties by way of type identity, thereby avoiding any causal competition between instances of mental properties and their physical bases. Here, I challenge this widely accepted advantage of type physicalism over non-reductive (...) physicalism in avoiding the causal exclusion of the mental. In particular, I focus on Jaegwon Kim’s influential version of the causal exclusion argument, namely, his supervenience argument. I argue that type physicalism’s advantage is undermined by the following two things: (1) the generalizability of the supervenience argument, and (2) type physicalism’s incompatibility with mental properties at the fundamental level. This involves evaluating the generalization objection to the supervenience argument, probing the metaphysics of physicalism, and showing how (1) and (2) combine in a way that appears underappreciated given the general confidence in type physicalism’s advantage. (shrink)

At present, the task of enforcing UK competition law lies almost exclusively with a public regulator. One of the aims of the Competition Bill which is currently before Parliament is to enable private litigants to seek redress through the courts for harm caused by unlawful anti-competitive conduct. This article considers the appropriate role of private actions in the enforcement of competition law. It is argued that private actions are of both instrumental and intrinsic value: not only can private actions (...) act as a deterrent against harmful behaviour, but they also enable those harmed by unlawful anti-competitive conduct to seek compensation for injury from the perpetrator. But private enforcement suffers from several shortcomings which are not shared by public enforcement. Accordingly, it is argued that although there is a strong case for ‘privatizing competition regulation’, private enforcement should be used to supplement, rather than supplant, public enforcement. This article also explores the problems within a regulatory scheme which combines both private and public enforcement, drawing on the experience of other jurisdictions to shed light on how such ‘aggregation problems’ might best be resolved. Finally, UK competition regulation is examined from an enforcement perspective. It is argued that the UK Competition Bill has the potential to provide a significantly more effective and efficient scheme of regulation. Whether or not this potential is realized will depend on a number of factors, particularly the ability of UK courts to interpret the legislative prohibitions in a coherent, predictable, and transparent manner which is consistent with the economic theory upon which competition regulation is based. (shrink)

Feminist literature sometimes posits that competition and cooperation are opposites. This dichotomy is important in that it is often invoked in order to explain why mainstream economics has focused on market activity to the exclusion of non-market activity, and why this fascination or focus is sexist. The purpose of this paper is to demonstrate that the competition/cooperation dichotomy is false. Once the dichotomy is dissolved, those activities which are seen as competitive (masculine) and those which are seen as (...) cooperative (feminine) are no longer mutually exclusive but are, in fact, dependent upon one another. It is shown that the outcome of competition (more and better knowledge) enhances, and in some cases makes possible, cooperation. The function of battle is destruction; of competition, construction. Ludwig von Mises. (shrink)

Brand-name prescription drug manufacturers use various strategies to extend their market exclusivity periods by delaying generic or biosimilar competition. Recent Congressional legislation has targeted four such tactics. We analyze these proposals and assess their likely effect on competition in the U.S. drug market.

Is there a problem of causal exclusion between micro- and macro-level physical properties? I argue (following Kim) that the sorts of properties that in fact are in competition are macro properties, viz., the property of a (macro-) system of 'having such-and-such macro properties' (call this a 'macro-structural property') and the property of the same system of 'being constituted by such-and-such a micro- structure' (call this a 'micro-structural property'). I show that there are cases where, for lack of reducibility, there (...) is a prima facie intra-level causal competition between the two kinds of properties. The problem can be resolved without giving up on the causal efficacy of the macro-structural properties if we understand instances of macro-structural properties to be parts of micro-structural property instances. The parthood relation between both kinds of property instances can be mapped onto the way physical theory deals with the relation of their descriptions in the framework of perturbation theory. The application of this framework to the problem of emergent properties is discussed. (shrink)

Exact definitions in physical and biological terms of the coefficients in Volterra's (1926, 1931) original competition equations are indispensable for the understanding of the system. In agreement with Volterra's own, but not quite sufficient specifications, it is tried in this paper to give more precise definitions of the parameters used by Volterra. This leads to some consequences; i.a. that there does not exist a principle of competitive exclusion. In order to allow for competitive exclusion — or (...) for stabilization — the Volterra equations need additional biophysical specifications and mathematical modifications. Some such modifications are proposed, for instance for aggressive interference as a function of population numbers. (shrink)

The present study examined women’s mate competition tactics in response to female and feminine-male rivals in two cultures in which competition against both occurs. In Samoa and the Istmo Zapotec (Southern Mexico), women not only compete with other women (intrasexually) but also compete with rival feminine males (_intersexually_) in order to access/retain the same masculine men as sexual/romantic partners. Using a mixed-method paradigm, women were asked about their experiences of intra- and intersexual mate competition, and these narratives were recorded. The (...) tactics reportedly employed by participants, and those attributed to mate competitors, were categorized according to established taxonomies of mate competition tactics, and their frequencies compared. Within-culture, the likelihood that participant women had ever experienced intra- and intersexual mate competition did not differ. Furthermore, participants reported a similar pattern of behavioral tactics whether their rival was another woman or a feminine male. These included benefit provisioning tactics during mate acquisition and cost-inflicting tactics during mate retention. Similarly, the mate competition tactics attributed to rival women and rival feminine males bore a striking resemblance, focused on enticing target men. Results highlight the mate competition tactics employed by women outside of a Euro-American context, and the way cultural factors impact mating landscapes presumed to be exclusively heterosexual. The presence of feminine males, alongside masculine men’s willingness to engage in sexual activity with them, induces women in such cultures to compete intersexually in comparable ways to intrasexual competition with rival women. (shrink)

Sexual size dimorphism is generally associated with sexual selection via agonistic male competition in nonhuman primates. These primate models play an important role in understanding the origins and evolution of human behavior. Human size dimorphism is often hypothesized to be associated with high rates of male violence and polygyny. This raises the question of whether human dimorphism and patterns of male violence are inherited from a common ancestor with chimpanzees or are uniquely derived. Here I review patterns of, and causal (...) models for, dimorphism in humans and other primates. While dimorphism in primates is associated with agonistic male mate competition, a variety of factors can affect male and female size, and thereby dimorphism. The causes of human sexual size dimorphism are uncertain, and could involve several non-mutually-exclusive mechanisms, such as mate competition, resource competition, intergroup violence, and female choice. A phylogenetic reconstruction of the evolution of dimorphism, including fossil hominins, indicates that the modern human condition is derived. This suggests that at least some behavioral similarities with Pan associated with dimorphism may have arisen independently, and not directly from a common ancestor. (shrink)

The current major models of coexistence of species on the same resources are briefly summarized. It is then shown that analysis of supposedly competitive systems in terms of the physical four dimensions of phase-space is sufficient to understand the causes for coexistence and for competitive exclusion. Thus, the multiple dimensions of niche theory are reduced to factors which define the magnitudes of the phase-spatial system, in particular the boundaries of population spaces and of periods of activity. Excluding (...) possible cooperative interaction between consumers, it appears that coexistence of species on thesame kind of limiting resource is possible only in cases of compartmentalization either in space, or in time, of resource consumption, i.e. if each consumer species disposes of a separate resource supply. Three criteria were found to be decisive for successful compartmentalization (i.e. for coexistence): 1. the vector of the resource flow; 2. relative mobility between consumers and resource units; 3. dependence or independence of resource flow on previous consumption. The traditional terminology of niche theory and of competition theory in general proved to be inadequate for analytical treatment of problems of coexistence. (shrink)

The Global Competitiveness Report raises ethical issues on multiple levels. The traditional high ranking accorded the US is largely attributable to fallacies, poor science and ideology. The ideological bias finds expression in two ways: the inclusion of indices that do not provide competitive advantage, but that fit the Anglo/US ideology; and the exclusion of indices that are known to offer competitive advantage, but that do not fit the Anglo/US ideology. This flaw is compounded by methodological problems that (...) raise further doubt as to the reliability and validity of the survey results. The resultant false high ranking of the US, a strong proponent of Anglo/US capitalism, pseudo-legitimizes the propensity of US-dominated institutions and entities to persuade, coerce and, in the worst-case force other countries and their constituents to adopt Anglo/US practices and behaviours. This is ethically reprehensible because research shows that these practices and behaviours, when compared with other approaches, are sub-optimal in the results they produce for individuals, corporations and nations. The report also unjustly and unnecessarily stigmatizes entire groups of countries with little conceivable benefit to anyone. Given the report’s gravitas through the profound global influence it exerts on the decisions of top government and business leaders, these are serious ethical and economic issues. (shrink)

This chapter contains sections titled: The Problem of International Exclusion Interaction‐Dependent Justice: Failing Responses or Contributing Factors? Interaction‐Dependent Contextualist Theories: Statism and Nationalism Interaction‐Dependent Universalist Theories: Contractarianism, Nonharm Theories, and the “Cosmopolitan Democracy” Project Conclusions Acknowledgments References.

Two populations are subdivided into two categories of individuals (hawks and doves). Individuals fight to have access to a resource which is necessary for their survival. Conflicts occur between individuals belonging to the same population and to different populations. We investigate the long term effects of the conflicts on the stability of the community. The modelis a set of ODE's with four variables corresponding to hawk and dove individuals of the two populations. Two time scales are considered. A fast time (...) scale is used to describe frequent encounters and fightings between individuals trying to monopolize the resource. A slow time scale is used for the demography and the long term effects of encounters. We use aggregation methods in order to reduce this model into a system of two ODE's only for the total densities of the two populations which is found to be a classical Lotka-Volterra competition model. We study different cases of proportions of hawks and doves in both populations on the global coexistence and the mutal exclusion of the two populations. Pure dove tactics in both populations are unstable. In cases of mixed hawk and dove in both populations, there is coexistence. Pure dove or mixed hawk-dove tactics in one population can coexist with pure hawks in the other one when the costs of fightings between hawks are large enough. (shrink)

Perhaps no concept has been thought more important to ecological theorizing than the niche. Without it, technically sophisticated and well-regarded accounts of character displacement, ecological equivalence, limiting similarity, and others would seemingly never have been developed. The niche is also widely considered the centerpiece of the best candidate for a distinctively ecological law, the competitive exclusion principle. But the incongruous array and imprecise character of proposed definitions of the concept square poorly with its apparent scientific centrality. I argue (...) this definitional diversity and imprecision reflects a problematic conceptual indeterminacy that challenges its putative indispensability in ecology. (shrink)

I present an attempt at an explication of the ecological theory of interspecific competition, including its explanatory role in community ecology and evolutionary biology. The account given is based on the idea that law-like statements play an important role in scientific theories of this kind. I suggest that the principle of competitive exclusion is such a law, and that it is evolutionarily invariant. The principle's empirical status is defended and implications for the ongoing debates on the existence of (...) biological laws are discussed. (shrink)

Microbial model systems have a long history of fruitful use in fields that include evolution and ecology. In order to develop further insight into modelling practice, we examine how the competitive exclusion and coexistence of competing species have been modelled mathematically and materially over the course of a long research history. In particular, we investigate how microbial models of these dynamics interact with mathematical or computational models of the same phenomena. Our cases illuminate the ways in which microbial (...) systems and equations work as models, and what happens when they generate inconsistent findings about shared targets. We reveal an iterative strategy of comparative modelling in different media, and suggest reasons why microbial models have a special degree of epistemic tractability in multimodel inquiry. (shrink)

The improbability of a spontaneously generated self-assembling molecule has suggested that life began with a set of simpler, collectively replicating elements, such as an enclosed autocatalytic set of polymers (or autocell). Since replication occurs without a self-assembly code, acquired characteristics are inherited. Moreover, there is no strict distinction between alive and dead; one can only infer that an autocell was alive if it replicates. These features of early life render natural selection inapplicable to the description of its change-of-state because they (...) defy its underlying assumptions. Moreover, natural selection describes only randomly generated novelty; it cannot describe the emergence of form at the interface between organism and environment. Self-organization is also inadequate because it is restricted to interactions amongst parts; it too cannot account for context-driven change. A modified version of selection theory or self-organization would not work because the description of change-of-state through interaction with an incompletely specified context has a completely different mathematical structure, i.e. entails a non-Kolmogorovian probability model. It is proposed that the evolution of early life is appropriately described as lineage transformation through context-driven actualization of potential, with self-organized change-of-state being a special case of no contextual influence, and competitive exclusion of less fit individuals through a selection-like process possibly (but not necessarily) playing a secondary role. It is argued that natural selection played an important role in evolution only after genetically mediated replication was established. (shrink)

We address the biological dynamics problem of the persistence of several species in conditions of non-existence of an equilibrium, including an example of stabilization by predation and the very controversial “competitive exclusion”. We give normal forms for various examples of such persistence and comments on the involved topology, which implies the presence of exceptional heteroclinic connections binding equilibria on the boundary.

A number of ecologists have put forward various proposals that ecology has laws, yet they have not explicated what role laws play in ecological explanations. Marcel Weber (1999), Lev Ginzburg and Mark Colyvan (2004) correct this deficiency and also make their case for laws of ecology: the principle of competitive exclusion and Malthus's law of exponential growth respectively. According to Weber, the principle of competitive exclusion explains phenomena (1) by direct application, or (2) by describing a (...) default state from which observed phenomena deviate and mechanisms are called to account for the discrepancy. Independently of Weber, Ginzburg and Colyvan articulate a role similar to (2) for Malthus's law. I argue that Weber's proposition of explanation by direct application is not consistent with Gause's account of ’bottle experiments’ that he uses to support it and does not do justice to ecologists' explanatory practice. To address these problems, I articulate an alternative account of explanation by direct application—the covering-law model—based on a proposal by Elgin and Sober (2002) and show that even in this proposal mechanisms play a key explanatory role. I also demonstrate how the covering-law model accounts for how Malthus's law can explain by direct application and for its role of descriptor of a default state. Finally, I argue that the views on laws as components in covering-law model explanations or as descriptors of default states do not give sufficient attention to the prominent explanatory role of mechanisms and to the demanding task of identifying and describing them, and ought to be corrected. (shrink)

A novel thermodynamic perspective on natural selection is presented. In the case that life continuity is optimized in an ideal system, where relatively constant and homogeneous selective pressures favour a given competing species, natural selection leads that system to a stationary state of maximum genotypic uniformity of life and maximum sustainable consumption of available energy by life (competitive equilibrium). Structurally and functionally, this optimizing tendency towards competitive equilibrium looks similar to the optimizing tendency towards thermodynamic equilibrium of classical (...) thermodynamics (maximum energetic uniformity and maximum degradation of available energy). The principle of competitive exclusion may thus be conceptually viewed as an ecological manifestation of the second law of (classical) thermodynamics. On the other hand, the novel thermodynamic perspective on natural selection is discussed with regard to the open and nonequilibrium system of nature, where selective pressures vary in space and time. In this case, natural selection can induce diversity instead of uniformity, though an optimizing tendendcy towards maximum sustainable consumption of resources (optimization of life continuity) always remains. Overall, it is concluded that the action of natural selection favours the maximization of the sustainable consumption of energy at the level of individual organism. (shrink)

The improbability of a spontaneously generated self-assembling molecule has suggested that life began with a set of simpler, collectively replicating elements, such as an enclosed autocatalytic set of polymers (or protocell). Since replication occurs without a self-assembly code, acquired characteristics are inherited. Moreover, there is no strict distinction between alive and dead; one can only infer that a protocell was alive if it replicates. These features of early life render natural selection inapplicable to the description of its change-of-state because they (...) defy its underlying assumptions. Moreover, natural selection describes only randomly generated novelty; it cannot describe the emergence of form at the interface between organism and environment. Self-organization is also inadequate because it is restricted to interactions amongst parts; it too cannot account for context-driven change. A modified version of selection theory or self-organization would not work because the description of change-of-state through interaction with an incompletely specified context has a completely different mathematical structure, i.e. entails a non-Kolmogorovian probability model. It is proposed that the evolution of early life is appropriately described as lineage transformation through context-driven actualization of potential (CAP), with self-organized change-of-state being a special case of no contextual influence, and competitive exclusion of less fit individuals through a selection-like process possibly (but not necessarily) playing a secondary role. It is argued that natural selection played an important role in evolution only after genetically mediated replication was established. (shrink)

The paradox of biological diversity is the key problem of theoretical ecology. The paradox consists in the contradiction between the competitive exclusion principle and the observed biodiversity. The principle is important as the basis for ecological theory. On a relatively simple model we show a mechanism of indefinite coexistence of complete competitors which violates the known formulations of the competitive exclusion principle. This mechanism is based on timely recovery of limiting resources and their spatio-temporal allocation between (...) competitors. Because of limitations of the black-box modeling there was a problem to formulate the exclusion principle correctly. Our white-box multiscale model of two-species competition is based on logical deterministic individual-based cellular automata. This approach provides an automatic deductive inference on the basis of a system of axioms, and gives a direct insight into mechanisms of the studied system. It is one of the most promising methods of artificial intelligence. We reformulate and generalize the competitive exclusion principle and explain why this formulation provides a solution of the biodiversity paradox. In addition, we propose a principle of competitive coexistence. (shrink)

Ecological communities, I argue, are objective units of nature if theyhave structure that regulates their membership. Evidence of suchstructure in contemporary ecology is scant, but the palaeoecologicalphenomenon of co-ordinated stasis is a prima facie example ofinternal regulation. I argue that no individualist attempts to explainaway the appearance of internal regulation succeeds. But no internalistmodel is fully satisfactory, either, in explaining the contrast betweenpre and post Pleistocene ecology.

This paper proposes a description of the moral obligations of economic agents. It will show that a threefold division should be adopted to distinguish moral obligations applying to their interactions in the market, obligations applying to their interactions inside business firms and obligations applying to their interactions with agents outside the market. Competition might be permissible in the first case since markets are special patterns of social interactions (called adversarial schemes). They produce their benefits when agents try to satisfy exclusive (...) preferences at the expense of others. However, moral obligations inside the firm and moral obligations outside the market are of a different nature. This argument will be developed in the two first parts of this paper. In the third part, it will outline the relevant strengths of that account in relation with two popular views of economic agents’ moral obligations: the shareholder primacy view and the stakeholder theory. (shrink)

Cooperation admits of degrees. When factory workers stage a slowdown, they do not cease to cooperate with management in the production of goods altogether, but they are not fully cooperative either. Full cooperation implies that participants in a joint action are committed to rendering appropriate contributions as needed toward their joint end so as to bring it about, consistently with the type of action and the generally agreed upon constraints within which they work, as efficiently as they can, where their (...) contributions are sensitive to information (where available) about how others are contributing in the sense that they adjust as needed their contributions in light of information about how others are contributing to ensure effective pursuit of their joint end, where this includes rendering aid to other participants if needed, insofar as they are able. Full cooperation entails those cooperating are engaged in a joint intentional action. Some prominent studies of joint intentional action focus exclusively on cases of full cooperation (notably that of Michael Bratman (2014)). But not all joint intentional action is fully cooperative. One example is the work slowdown. Another example is provided by competitive games like chess and football, or sports like boxing and wrestling, where participants are clearly not intending to contribute to the pursuit of all of the goals of the others engaged in the activity, even when those goals are internal to the type of activity in question, but instead intend actively to frustrate some of them. In this paper, I provide a taxonomy of forms of non-cooperative behavior within the context of behavior that is still to some degree cooperative, and I argue that the minimal conditions of joint intentional action define minimal cooperative behavior, that is, that minimally joint intentional action is per se minimally cooperative behavior. I define in precise terms what that comes to, and how it is possible in cases in which it seems that one or more participants are in one or more ways acting so as to frustrate the contributions of other participants to their joint action. (shrink)

This paper examines social determinants of resource competition among Tsimane Amerindian women of Bolivia. We introduce a semi-anonymous experiment (the Social Strategy Game) designed to simulate resource competition among women. Information concerning dyadic social relationships and demographic data were collected to identify variables influencing resource competition intensity, as measured by the number of beads one woman took from another. Relationship variables are used to test how the affiliative or competitive aspects of dyads affect the extent of prosociality in the (...) game. Using a mixed-modeling procedure, we find that women compete with those with whom they are quarreling over accusations of meat theft, mate competition, and rumor spreading. They also compete with members of their social network and with those who were designated as cooperative helpers or as close kin. Women take fewer beads from desired friends, neighbors, and from those viewed as enemies. We interpret favoritism toward enemies as resulting from fear of retribution. Our results suggest that social relations among women are multifaceted and often cannot be simplified by exclusive focus on genetic relatedness, physical proximity, or reciprocity. We argue that a complex understanding of cooperation and competition among women may require important contextual information concerning relationship history in addition to typical features of resource ecology. (shrink)

Brendon Larson’s Metaphors for Environmental Sustainability: Redefining our Relationship with Nature is a thought provoking treatment of what can be a challenging and sometimes controversial subject. Primarily, but not exclusively, through four feedback metaphors: progress, competition, barcoding, and meltdown, Larson challenges the dominant scientific discourse, highlighting the limits of a single-lens scientific narrative while emphasizing the value of welcoming ambiguity, and diversity as a means to fruitful discussion and inquiry in addressing the issues surrounding environmental sustainability. Furthermore, rather than fencing (...) ourselves off from nature, Larson demonstrates the importance of breaking down narratives of duality, and seeing ourselves as one with nature, not separate from it, in addressing issues concerning environmental sustainability. This book is valuable not only for its message, but also for how its concepts are presented. Larson presents historical and cultural frameworks to contextualize evolutionary and current environmental sustainability narratives. This book exemplifies phenomenological practices and perceptions, and is a valuable and insightful read for any individual, practitioner, or academic with an interest in environmental sustainability. (shrink)

In his exclusive interview with our magazine, the Estonian sociologist, philosopher, expert in the field of education reform, professor emeritus of the University of Tartu, Ülo Vooglide, reflects on the role and purpose of education in educating a generalist of his own ideas, and not an executor of someone else’s decisions. The researcher believes that educational institutions should focus on creating an environment in which the child’s inner potential will be revealed, nurturing his individuality, taking into account dreams and needs. (...) A person and his talents are the main asset of the people. The scientist draws attention to the fact that the result of education is not the amount of acquired knowledge, but the ability and ability of a person to use the knowledge resource in solving practical tasks and life situations. The ability to make independent decisions, effectively solve practical situations and calculate the consequences of one’s actions, etc., is much more important than “filling the head” with ready-made information. Quality education becomes a global value and a categorical condition for competitive strategic development of society. At the same time, the creation and construction of quality education will contribute to the development of Ukrainian society, will allow education to be at the forefront of new social changes. (shrink)

In an increasingly competitive higher education environment, America's public universities are seeking ways to differentiate themselves. This book suggests that a hopeful vision of what a university should be lies in a reexamination of the "land-grant mission," the common system of values originally set forth in the Morrill Land Grant Acts of 1862 and 1890, which established a new system of practically oriented higher learning across the United States. While hard to define, these values are often expressed by the (...) one hundred or so institutions that currently define themselves as "land grants" under the three pillars of research, teaching, and engagement/extension.In order to understand the unique character of a modern land-grant institution, this book focuses especially but not exclusively on the multiple components of a single organization, Oklahoma State University, founded in 1890 and currently enrolling 35,000 students across five campuses. Contributors from across the university focus on what the land-grant mission means to them in their daily endeavors, whether that be crafting the undergraduate academic experience, stimulating research, or engaging with the community through extension activities. The twenty contributions are divided into four parts, exploring in turn the core mission of the modern land-grant university, the university environment, the university's public value, and its accountability. The volume ends with an epilogue by the editor, which summarizes the values underlying the activities of land-grant institutions. In a time of uncertainty in higher education, this volume provides a helpful overview of the many different types of value public universities bring to American society. It also offers a powerful vision of a future founded on land-grant ideas that will be inspiring to university administrators and trustees, other educational policymakers, and faculty and staff, especially those fortunate enough to be part of land-grant institutions. (shrink)

The critical concept of commodity fetishism and its developed forms of money and capital fetishism ground the contemporary shape of social life under the rule of capital. This chapter offers a novel interpretation based on Marx’s Capital, elucidating the oft-overlooked interconnection of the fetishism triptych that accounts for domination, as well as the normalisation of exploitation as experienced in capitalist life. In commodity fetishism, a market-based pseudo-social ‘thing-hood’ preponderates over commodity owners and producers, concealing the double inversion that constitutes the (...) ‘world of commodities’. Money’s fetish form makes it appear as the ‘sovereign’ of the commodity world, possessing the exclusive social power to establish the value hierarchy of all persons and objects relativised in regard to it. The universal condition of monetisation of the life process in bourgeois society necessitates the adoption of the competition principle, leading to the generalised formation of a commodity self, shaped by competitive individualism. The social separation of the great mass of commodity producers from the means of production and the consequent need to sell themselves as commodities in the form of wage labour constitutes the social basis of capital fetishism, through which the process of capital ‘valorisation’ is enfolded within the process of use value production, disappearing into its socio-material character and thus naturalised. Capital fetishism dissimulates the production of surplus value by social labour and constructs the harmonised appearance of an equitable contribution of ‘factors of production’ in the sharing of the surplus product, thereby obscuring distributional struggles over it. Such antagonisms over surplus undergird the logic of neoliberal capitalism’s two-pronged strategy, pursuing ‘deregulation of labour relations’ on the one hand and dismantling the welfare state on the other. (shrink)

In this paper, I link philosophical discussion of policies for trans inclusion or exclusion, to a method of policy making. I address the relationship between concerns about safety, fairness, and inclusion in policy making about the inclusion of transwomen athletes into women’s sport. I argue for an approach based on lexical priority rather than simple ‘balancing’, considering the different values in a specific order. I present justifying reasons for this approach and this lexical order, based on the special obligations (...) of International Federations such as World Rugby. As a result, I provide a justificatory framework for the WR Guidelines that exclude transwomen from the women’s game in WR competitions. Finally, I give an account of a maximally safe, maximally fair and maximally inclusive form of sex categorisation in sport. (shrink)