Life history theory’s principle of allocation suggests that because immature organisms cannot expend reproductive effort, the major trade-off facing juveniles will be the one between survival, on one hand, and growth and development, on the other. As a consequence, infants and children might be expected to possess psychobiological mechanisms for optimizing this trade-off. The main argument of this paper is that the attachment process serves this function and that individual differences in attachment organization (secure, insecure, and possibly others) may represent (...) facultative adaptations to conditions of risk and uncertainty that were probably recurrent in the environment of human evolutionary adaptedness. (shrink)

With the rejection of group selectionist derivations of ecological phenomena so incisively given by George Williams in 1966,43 Nicholson's long-ignored messages met with acceptance. Species benefit became, explicitly, incidental. But the reorientation was not just about a point of ecological theory. It was more fundamentally about theoretical style, the element shared by Wynne-Edwards' work and the newer, evolutionary ecology. That current approach is well expressed in an already classic paper by the British plant ecologist John Harper: Ultimately all (...) the discoveries of descriptive, production or population ecology must find their meaning in evolutionary phenomena... Evolutionary thinking concentrates attention on the behaviour of the individual and his descendants. If nothing in biology has meaning except in the light of evolution and if evolution is about individuals and their descendants — i.e. fitness — we should not expect to reach any depth of understanding from studies that are based at the level of the superindividual... What we see as the organised behaviour of systems is the result of the fate of individuals.44The emphasis in this passage is on style of thinking more than on study matter. What is so different from earlier ecologists is the rejection of the superorganism and its associated baggage of selfimposed constraints in an end-oriented process, such as balance of nature or species-level adaptation.The hallmark of post-1959 evolutionary ecology is the recognition, the making explicit of the question that the selective, genetical process of fitness (fates of genes) has to be separated from the observations of different levels of adaptiveness. An easy conflation of cause and result is no longer satisfying; now attempts to disentangle the complex strands tying population phenomena to the different levels of selection are providing the excitement of a new research program. In this program evolutionary theory is used to define the appropriate questions, as exemplified by the organization of the textbook Evolutionary Ecology.45 Our discussion of the invention of a new approach, with a characteristic style and set of interests, must also be about how the practitioners of ecology have perceived themselves. The early attempts of Poulton and Nicholson were not taken up by the vigorously growing science of ecology, which developed first - and intentionally — along a narrower, hierarchically restrained set of questions about population. The depth of Poulton's and Nicholson's submergence is indicated by the fact that even Wynne-Edwards did not argue in the manner of one rescuing a minor tradition. Rather, he thought he had a new approach, that of placing evolution in the foundations of ecology. Although this approach was not exactly original, we should be cautious in grouping all evolutionary concerns within ecology in one intellectual tradition. The particular style of selectionist deduction invigorated by Wynne-Edwards was successful only in the volatile situation of a rapidly growing discipline, full of self-critical examination and new rigor. Whereas in 1930 evolutionary concerns did not provide that rigor, by 1960 they could - and did. (shrink)

Optimization models treat natural selection as a process tending to produce maximal adaptedness to the environment, measured on some "criterion scale" defining the optimal phenotype. These models are descriptively adequate if they describe the outcomes of evolutionary processes. They are dynamically adequate if the variables which describe the outcomes also are responsible for those evolutionary outcomes. Optimality models can be descriptively adequate, but dynamically unrealistic. Relying on cases from evolutionary ecology, I provide reasons to question the (...) dynamic adequacy of optimality models, and offer reasons for distinguishing, at least at a theoretical level, between satisficing and optimizing. (shrink)

How significant is social evolution theory for the maintenance of virulence in natural populations? We assume that secreted, distantly acting virulence factors are highly likely to be cooperative public goods. Using this assumption, we discuss and critically assess the potential importance of social interactions for understanding the evolution, diversity and distribution of virulence in the Bacillus cereus group, a novel study system for microbial social biology. We conclude that dynamic equilibria in Cry toxin production, as well as strong spatial structure (...) and population bottlenecks in hosts are the main ecological factors maintaining the cooperative secretion of virulence factors and argue that collective action has contributed to the evolution of narrow host range. Non‐linearities in the benefits associated with public goods, as well as the lack of private secretion systems in the Firmicutes may also explain the prevalence and importance of distantly acting virulence factors in B. cereus and its relatives. (shrink)

I will discuss some of the implications of the ongoing Darwinian revolution for theology as a constructor and interpreter of human meaning. Focus will be directed toward the following issues: How should we best understand ourselves in the new, evolutionary cosmos? What are the problems with the kind of genetic reductionism espoused by neo‐Darwinism? How are those problems resolved by the “relational” understanding of life made available by thermodynamics and ecology? How do we generate meaning‐structures in this relationally‐constituted (...) cosmos? Finally, how do these developments enrich our understandings of responsibility—to each other and to our private conceptions of God? (shrink)

The antioxidant role of carotenoids in the living organism was proposed as a possible basis for the honesty of carotenoid‐based signals. However, recent studies have questioned the relevance of carotenoids as powerful antioxidants in vivo. Current evidence does not seem to support the “antioxidant role” hypothesis, but it does not allow us to reject it either. This paper proposes some steps to solve this controversy, such as taking a dynamic approach to antioxidant responses, designing protocols that expose individuals to oxidative (...) challenges, analyzing tissues other than blood, and obtaining measures of antioxidant capacity and oxidative damage simultaneously. However, it should be considered that, irrespective of their antioxidant potential, carotenoids might still give information on oxidative stress levels if they are particularly sensitive to free radicals. Finally, lumping together the immunostimulatory and antioxidant roles of carotenoids should be avoided as these functions are not necessarily associated. (shrink)

If Panentheism’s core thesis, that God is in the world, is to animate a spiritual approach to life, then we have to account for the way in which God is in the destructive or thanative dimensions of life. From the perspective of evolutionary ecology the universe is imbued with creative and destructive energies. The creative drive can be termed eros as creation occurs through the expansion of relational unities, holons. The destructive drive is termed thanatos and is the (...) drive to sever connection. An argument is developed from the perspective of evolutionary ecology to show how thanatos serves eros, serves the evolutionary unfolding of higher orders of communion. I suggest there are healthy and pathological expressions of the thanative drive. God within the thanative invites us to embrace the transformative potentials of suffering by integrating thanatos-in-eros. God as eros invites us to develop expanded modes of connection, inter-subjectivity and communion. (shrink)

The anthropocentric orientation of traditional understandings of Christian faith and life, further accentuated by the existentialist terms in which theology was articulated in mid‐century by Tillich and others, produced theologies no longer appropriate in today's world of evolutionary and ecological thinking about human existence and its embeddedness in the web of life on planet Earth. This problem can be addressed with the help of several new concepts that enable us to understand both humanity‐in‐the‐world and God in ways in keeping (...) with these present conceptions, thus providing a more intelligible and illuminating way of understanding Christian faith and life today. (shrink)

The urochordates, whose stem groups may have included the direct predecessors of the chordate line, serve as an excellent model group of organisms for a variety of scientific disciplines. One taxon, the botryllid ascidian, has emerged as the model system for studying allorecognition; this work has concentrated on the cosmopolitan species Botryllus schlosseri. Studies analyzing self–nonself recognition in this colonial marine organism point to three levels of allorecognition, each associated with different outcomes. The first level controls natural allogeneic rejections and (...) fusions, in which blood‐shared chimeras are formed. The second level leads to morphological resorption of partners within chimeras while the third allows the development of somatic and germ cell parasitic events. Recent studies on multi‐chimeric entities formed in allogeneic fusions reveal evolutionary links between allorecognition, stem cell biology and ecology. Thus, the Botryllus system generates perspectives from different biological disciplines to yield a unique life history portrait. BioEssays 24:730–740, 2002. © 2002 Wiley Periodicals, Inc. (shrink)

As our understanding of biological evolution continues to deepen, tension still surrounds the relationship between competition and cooperation in the evolution of the biosphere, with rival viewpoints often associated with the Red Queen and Black Queen hypotheses respectively. This essay seeks to reconcile these viewpoints by integrating observations of some general trends in biosphere evolution with concepts from game theory. It is here argued that biodiversity and ecological cooperation are intimately related, and that both tend to cyclically increase over biological (...) history; this is likely due to the greater relative stability of cooperation over competition as a means of long-term conflict resolution within ecosystems. By integrating this view of the biosphere with existing models such as Niche Game Theory, it may be argued that competition and cooperation in ecosystems coexist at equilibria which shift preferentially towards increasing cooperation over biological history. This potentially points to a state of “cooperative equilibrium” as a limit or endpoint in long-term biosphere evolution, such that Black Queen and Red Queen behavior dominate different phases in an evolutionary movement towards optimal cooperative stability in ecological networks. This concept, if accepted, may also bear implications for developing future mathematical models in evolutionary biology, as well as for resolving the perennial debate regarding the relative roles of conflict and harmony in nature. (shrink)

Abstract In a context of human demographic, technological and economic pressure on natural systems, we face some demanding challenges. We must decide 1) whether to “preserve” nature for its own sake or to “conserve” nature because nature is essentially a reservoir of goods that are functional to humanity’s wellbeing; 2) to choose ways of life that respect the biodiversity and evolutionary potential of the planet; and, to allow all this to come to fruition, 3) to clearly define the role (...) of scientific expertise in a democratic society, recognizing the importance of biospheric equilibrium. In fact, in socio-scientific controversies, which are characterized by complex linkages between some life and environmental sciences objects and economic, political and ethical issues, a posture of transparent, impartial commitment is appearing, more and more, as a deontological necessity. (shrink)

A tension between perspectives that emphasize deterministic versus stochastic processes has sparked controversy in ecology since pre-Darwinian times. The most recent manifestation of the contrasting perspectives arose with Hubbell’s proposed “neutral theory”, which hypothesizes a paramount role for stochasticity in ecological community composition. Here we shall refer to the deterministic and the stochastic perspectives as the niche-based and neutral-based research programs, respectively. Our goal is to represent these perspectives in the context of Lakatos’ notion of a scientific research program. (...) We argue that the niche-based program exhibits all the characteristics of a robust, progressive research program, including the ability to deal with disconfirming data by generating new testable predictions within the program. In contrast, the neutral-based program succeeds as a mathematical tool to capture, as epiphenomena, broad-scale patterns of ecological communities but appears to handle disconfirming data by incorporating hypotheses and assumptions from outside the program, specifically, from the niche-based program. We conclude that the neutral research program fits the Lakatosian characterization of a degenerate research program. (shrink)

This paper aims to examine the evolutionary role of affordances, that is, the possibilities for action available in our environments. There are two allegedly competing views for explaining the evolutionary role of affordances: the first is based on natural selection; the second is based on niche construction. According to the first, affordances are resources that exert selection pressure. The second view claims that affordances are ecological inheritances in the organism’s niche that are the product of a previous alteration (...) of the environment. While there seems to be a mutually exclusive definition of affordances in each of these views, I argue in this paper that the views are not competing but, rather, complementary. In this sense, affordances play the role of either resources or ecological inheritances depending on the temporal stage of the evolutionary process. I make this argument by analyzing how natural selection and niche construction affect each other even when they function independently from each other. In this light, if these two evolutionary mechanisms exert their power in parallel but at two different stages in the evolutionary history of a given econiche, then there is room to claim that affordances can be understood as both resources and ecological inheritances. This dual aspect of affordances shows their evolutionary role. (shrink)

Research in ecology and evolutionary biology (evo-eco) often tries to emulate the “hard” sciences such as physics and chemistry, but to many of its practitioners feels more like the “soft” sciences of psychology and sociology. I argue that this schizophrenic attitude is the result of lack of appreciation of the full consequences of the peculiarity of the evo-eco sciences as lying in between a-historical disciplines such as physics and completely historical ones as like paleontology. Furthermore, evo-eco researchers have (...) gotten stuck on mathematically appealing but philosophi- cally simplistic concepts such as null hypotheses and p-values defined according to the frequentist approach in statistics, with the consequence of having been unable to fully embrace the complexity and subtlety of the problems with which ecologists and evolutionary biologists deal with. I review and discuss some literature in ecology, philosophy of science and psychology to show that a more critical methodological attitude can be liberating for the evo-eco scientist and can lead to a more fecund and enjoyable practice of ecology and evolutionary biology. With this aim, I briefly cover concepts such as the method of multiple hypotheses, Bayesian analysis, and strong inference. (shrink)

Considerable variation exists not only in the kinds of transposable elements (TEs) occurring within the genomes of different species, but also in their abundance and distribution. Noting a similarity to the assortment of organisms among ecosystems, some researchers have called for an ecological approach to the study of transposon dynamics. However, there are several ways to adopt such an approach, and it is sometimes unclear what an ecological perspective will add to the existing co-evolutionary framework for explaining transposon-host interactions. (...) This review aims to clarify the conceptual foundations of transposon ecology in order to evaluate its explanatory prospects. We begin by identifying three unanswered questions regarding the abundance and distribution of TEs that potentially call for an ecological explanation. We then offer an operational distinction between evolutionary and ecological approaches to these questions. By determining the amount of variance in transposon abundance and distribution that is explained by ecological and evolutionary factors, respectively, it is possible empirically to assess the prospects for each of these explanatory frameworks. To illustrate how this methodology applies to a concrete example, we analyzed whole-genome data for one set of distantly related mammals and another more closely related group of arthropods. Our expectation was that ecological factors are most informative for explaining differences among individual TE lineages, rather than TE families, and for explaining their distribution among closely related as opposed to distantly related host genomes. We found that, in these data sets, ecological factors do in fact explain most of the variation in TE abundance and distribution among TE lineages across less distantly related host organisms. Evolutionary factors were not significant at these levels. However, the explanatory roles of evolution and ecology become inverted at the level of TE families or among more distantly related genomes. Not only does this example demonstrate the utility of our distinction between ecological and evolutionary perspectives, it further suggests an appropriate explanatory domain for the burgeoning discipline of transposon ecology. The fact that ecological processes appear to be impacting TE lineages over relatively short time scales further raises the possibility that transposons might serve as useful model systems for testing more general hypotheses in ecology. (shrink)

Allen Carlson has argued that a proper aesthetics of nature must judge nature for ‘what it is’, and that such judgements must be informed by a scientific understanding of nature, in particular, one shaped by the science of ecology. Carlson uses these claims to support his theory of positive aesthetics. This paper argues that there are problems in this view. First, it misunderstands ecology, thereby adopting a view of the natural world that holds it to be much more (...) integrated than it is. Second, it ignores an even more fundamental science of nature, evolution. Thus, it misunderstands both ecology and nature. An alternative to this view would be an aesthetics based on an evolutionary understanding of nature, which holds that, although there are many functional wholes in nature, there is also significant conflict, disintegration, and incongruent scales. A proper aesthetics of nature must take these conflicts into account. The paper ends with a sketch of an aesthetic theory based on the science of evolution. (shrink)

A new paradigm in theology, termed evolutionary theology, supports the understanding of ecology as the proper ordering of the relations between living organisms and their environment. It is argued that evolutionary theology yields a unique conceptual framework in which the human species share a common history with the entire Universe and respecting nature’s integrity means securing a common destiny to everything that exists. This is a powerful motivation for adopting a balanced ecological attitude aimed at respecting nature’s (...) inherent integrity. Furthermore, proposing theological arguments to substantiate ecological claims will help neutralize the objections that religion as such promotes anti-ecological attitudes. Such objections become more pressing when religion focuses exclusively on the afterlife in the immaterial and eternal world to come, and neglects the well-being of the material and temporal Universe. -------------- Received: 30/08/2020. Reviewed: 07/10/2020. Accepted: 12/11/2020. (shrink)

(1993). Evolutionary learning for a post‐industrial society: Knowledge, creativity & social ecology. World Futures: Vol. 36, Evolutionary Consciousness, pp. 181-202.

Infection by a temperate phage can lead to death of the bacterial cell, but sometimes these phages integrate into the bacterial chromosome, offering the potential for a more long-lasting relationship to be established. Here we define three major ecological and evolutionary benefits of temperate phage for bacteria: as agents of horizontal gene transfer, as sources of genetic variation for evolutionary innovation, and as weapons of bacterial competition. We suggest that a coevolutionary perspective is required to understand the roles (...) of temperate phages in bacterial populations. The dual personality of temperate phages – as infectious lytic phages or prophages integrated within the bacterial genome – creates a complex interaction with bacterial hosts. Although potentially lethal, prophages confer a multitude of benefits for the host, suggesting the potential for both conflict and collaboration which must be viewed from a coevolutionary perspective that considers both host and phage fitness interests. (shrink)

For two decades, the integrated causal model of evolutionary psychology (EP) has constituted an interdisciplinary nucleus around which a single unified theoretical and empirical behavioral science has been crystallizing – while progressively resolving problems (such as defective logical and statistical reasoning) that bedevil Gintis's beliefs, preferences, and constraints (BPC) framework. Although both frameworks are similar, EP is empirically better supported, theoretically richer, and offers deeper unification. (Published Online April 27 2007).

If one investigates a process that has several causes but assumes that it has only one cause, one risks ruling out important causal factors. Three mechanisms account for this mistake: either the significance of the single cause under test is masked by noise contributed by the unsuspected and uncontrolled factors, or the process appears only when two or more causes interact, or the process appears when there are present any of a number of sufficient causes which are not mutally exclusive. (...) In ecology and evolutionary biology, experiments usually test single factor hypotheses, and many scientists apparently believe that hypotheses incorporating several factors are so much more difficult to test that to do so would not be practical. We discuss several areas in ecology and evolutionary biology in which the presupposition of simple causation has apparently impeded progress. We also examine a more mature field, the study of atherosclerosis, in which single factor studies did significantly delay progress towards understanding what now appears to be a multifactor process. The problem has three solutions: either factorial experiments, dynamic models that make quantitative predictions, response-surface methods, or all three. In choosing a definition for ‘cause’, we make a presupposition that profoundly influences subsequent observations and experimental designs. Alternative definitions of causation should be considered as contributing to potential cures for research problems. (shrink)

References to Popper’s concept of three worlds occupy a central position in ontological and human ecological questions in the recent literature on theoretical geography. This article demonstrates that Popper’s ideas and concepts have not been fully understood, causing problems for integrative research. Firstly, we critically review the discussion of Popper’s concept of three worlds in geography. We criticize its popular ontological interpretation, and furthermore we point out that Popper’s evolutionary basis has been consistently neglected. Subsequently we present an interpretation (...) of Popper’s concept of three worlds which seems most plausible. We thereby identify his intentions and emphasize the evolutionary foundation of our interpretation of his theory. Finally, perspectives for human ecological research in geography on the basis of theories of evolution and emergence will be outlined. (shrink)

To the evolutionarily oriented clinical psychiatrist, the discipline of behavioural ecology is a fertile basic science. Human psychology discusses variation in terms of means, standard deviations, heritabilities, and so on, but behavioural ecology deals with mutually incompatible alternative behavioural strategies, the heritable variation being maintained by negative frequency-dependent selection. I suggest that behavioural ecology should be included in the interdisciplinary dialogue recommended by Keller & Miller (K&M). (Published Online November 9 2006).

This article reviews the effects of malnutrition on early brain development using data generated from animal experiments and human clinical studies. Three related processes, each with their own functional consequences, are implicated in the alteration of brain development. (1) Maternal undernutrition at the start of pregnancy results in reduced transfer of nutrients across the placenta, allowing the conservation of effort for future reproductive episodes. (2) Differential allocation to growing organs by the fetus in response to nutritional stress spares the brain (...) to a large though still limited degree, reflecting the organ’s relative contribution to survival and reproductive success. (3) Prenatal malnutrition disrupts developing neurotransmitter systems, which results in the expression of specific cognitive and affective traits. It is argued that the increasing size and therefore cost of the brain, in conjunction with increasing ecological instability and marginality, reinforced selection for maternally controlled growth suppression of offspring, reallocation of organ growth rates by offspring, and behavioral changes related to development of neurotransmitter systems. (shrink)

In this paper I distinguish various ways in which empirical claims about evolutionary and ecological models can be supported by data. I describe three basic factors bearing on confirmation of empirical claims: fit of the model to data; independent testing of various aspects of the model, and variety of evident. A brief description of the kinds of confirmation is followed by examples of each kind, drawn from a range of evolutionary and ecological theories. I conclude that the greater (...) complexity and precision of my approach, as compared to, for instance, a Popperian approach, can facilitate detailed analysis and comparison of empirical claims. (shrink)

Of all the scientists discussed by Mitman, Keller, and Taylor, Odum stands out most as the technocrat, the social engineer. But less obvious candidates, like Allee, also fancied themselves in this capacity: “Our task as biologists and as citizens of a civilized country, is a practical engineering job.” Allee had in mind the establishment of an international cooperative order based on his biological principles. He apparently did not recognize the extent to which his principles were themselves an engineering feat: he (...) had already constructed a world in which eternal peace and order were possible.To an engineer in the traditional sense, the world is changeable, but not in all respects; there are constraints, and these constraints are taken very seriously. Scientists acting as engineers, in the traditional sense, must also pay attention to constraints. But scientists sometimes also take the option of engineering the very constraints, intellectually reconstructing the world so that it can (supposedly) be physically manipulated in the desired direction. There seems to be a lot of engineering, in the extended sense, going on in the very interesting stories that Mitman, Keller, and Taylor tell. (shrink)

We are in trouble just now because we do not have a good story. We are in between stories. The old story, the account of how the world came to be and how we fit into it, is no longer effective. Yet we have not learned the new story.... We need a story that will educate us, a story that will heal, guide, and discipline us. Thomas Berry, The Dream of the Earth.

Dichotomous definitions of culture and language do not generate productive questions. Instead, more progress can be made by identifying components of each that other animals might plausibly possess. The evolutionary, ecological approach advocated by Rendell and Whitehead holds great promise for helping us to understand the conditions under which natural selection can favor similar capacities in differently organized brains.

We look to mitonuclear ecology and the phenomenon of Mother’s Curse to argue that the sex of parents and offspring among populations of eukaryotic organisms, as well as the mitochondrial genome, ought to be taken into account in the conceptualization of evolutionary fitness. Subsequently, we show how characterizations of fitness considered by philosophers that do not take sex and the mitochondrial genome into account may suffer. Last, we reflect on the debate regarding the fundamentality of trait versus organism (...) fitness and gesture at the idea that the former lies at the conceptual basis of evolutionary theory. (shrink)

Great promise for the evolutionary analysis of animal behavior lies in the distinction between generative novelties and the evolutionary innovations to which they can give rise. Ramsey et al. succeed in emphasizing the contribution of individual learning and intelligence to behavioral innovations, but do not correct the tendency to confound individual invention with socio-ecological or group-level innovation.

In Cognitive Gadgets, Heyes seeks to unite evolutionary psychology with cultural evolutionary theory. Although we applaud this unifying effort, we find it falls short of considering how culture itself evolves to produce indigenous psychologies fitted to particular environments. We focus on mentalizing and autobiographical memory as examples of how socialization practices embedded within culture build cognitive adaptations.

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)