4. Levels of selection

2019 ◽  
pp. 45-62
Author(s):  
Samir Okasha
Keyword(s):  
Kin Selection ◽  
Group Selection ◽  
Evolutionary Biology ◽  
Levels Of Selection ◽  
Major Transitions ◽  
Individual Level ◽  
Or Groups ◽  
The Subject ◽  
The Individual ◽  
Major Transitions In Evolution

‘Levels of selection’ examines the levels-of-selection question, which asks whether natural selection acts on individuals, genes, or groups. This question is one of the most fundamental in evolutionary biology, and the subject of much controversy. Traditionally, biologists have mostly been concerned with selection and adaptation at the individual level. But, in theory, there are other possibilities, including selection on sub-individual units such as genes and cells, and on supra-individual units such as groups and colonies. Group selection, altruistic behaviour, kin selection, the gene-centric view of evolution, and the major transitions in evolution are all discussed.

Units and levels of selection

2018 ◽  
Author(s):  
Samir Okasha
Keyword(s):  
Natural Selection ◽  
Kin Selection ◽  
Evolutionary Biology ◽  
Evolutionary Process ◽  
Levels Of Selection ◽  
Evolutionary Transitions ◽  
Individual Organism ◽  
Selection Processes ◽  
Hierarchical Levels ◽  
The Individual

In a standard Darwinian explanation, natural selection takes place at the level of the individual organism, i.e. some organisms enjoy a survival or reproduction advantage over others, which results in evolutionary change. In principle however, natural selection could operate at other hierarchical levels too, above and below that of the organism, for example the level of genes, cells, groups, colonies or even whole species. This possibility gives rise to the ‘levels of selection’ question in evolutionary biology. Group and colony-level selection have been proposed, originally by Darwin, as a means by which altruism can evolve. (In biology, ‘altruism’ refers to behaviour which entails a fitness cost to the individual so behaving, but benefits others.) Though this idea is still alive today, many theorists regard kin selection as a superior explanation for the existence of altruism. Kin selection arises from the fact that relatives share genes, so if an organism behaves altruistically towards its relatives, there is a greater than random chance that the beneficiary of the altruistic action will itself be an altruist. Kin selection is closely bound up with the ‘gene’s eye view’ of evolution, which holds that genes, not organisms, are the true beneficiaries of the evolutionary process. The gene’s eye approach to evolution, though heuristically valuable, does not in itself resolve the levels of selection question, because selection processes that occur at many hierarchical levels can all be seen from a gene’s eye viewpoint. In recent years, the levels of selection discussion has been re-invigorated, and subtly transformed, by the important new work on the ‘major evolutionary transitions’. These transitions occur when a number of free-living biological units, originally capable of surviving and reproducing alone, become integrated into a larger whole, giving rise to a new biological unit at a higher level of organization. Evolutionary transitions are intimately bound up with the levels of selection issue, because during a transition the potential exists for selection to operate simultaneously at two different hierarchical levels.

Differential Effects of Competence and Morality on Self-Esteem at the Individual and the Collective Level

2020 ◽  
Vol 51 (3) ◽  
pp. 183-198
Author(s):  
Wiktor Soral ◽  
Mirosław Kofta
Keyword(s):  
Self Esteem ◽  
Differential Effects ◽  
Individual Level ◽  
The Subject ◽  
The Individual

Abstract. The importance of various trait dimensions explaining positive global self-esteem has been the subject of numerous studies. While some have provided support for the importance of agency, others have highlighted the importance of communion. This discrepancy can be explained, if one takes into account that people define and value their self both in individual and in collective terms. Two studies ( N = 367 and N = 263) examined the extent to which competence (an aspect of agency), morality, and sociability (the aspects of communion) promote high self-esteem at the individual and the collective level. In both studies, competence was the strongest predictor of self-esteem at the individual level, whereas morality was the strongest predictor of self-esteem at the collective level.

Managing research projects: the rhetoric of judgment as a source of creativity

2016 ◽  
Vol 29 (1) ◽  
pp. 46-58 ◽  
Author(s):  
Nuria Nadal-Burgues ◽  
Eduard Bonet
Keyword(s):  
Project Management ◽  
Phenomenological Theory ◽  
Fundamental Aspect ◽  
Content Type ◽  
Individual Level ◽  
The Subject ◽  
The Individual ◽  
Practical Progress ◽  
Unexpected Outcomes ◽  
Extended Notion

Purpose – The purpose of this paper is to present new aspects of the tension between creativity and productivity and improve the understanding on how research can be developed in very restricted environments, such as the context of an organization managed using the methods of Project Management. And more generally, it introduces the rhetoric of judgment as a fundamental aspect involved in the development and specification of projects. Design/methodology/approach – The theoretical approach is based on the phenomenological theory of human intentional action developed by Alfred Schutz, in which the notion of mental project is more flexible than that of project management. In it the concepts of subaction and repeated action are considered a combination of similar actions already performed. The Kantian notion of judgment is introduced to outline self-persuasion as a fundamental source of creativity. Findings – The introduction of an extended notion of project and routine involving judgment expands the rational, generic and technical notion of project management. And the rhetorical aspect of judgment, at the individual level, establishes the possibility to deliver unexpected outcomes that are considered creative. Originality/value – The proposed notions of project and routines mediated through the rhetoric of judgment present theoretical and practical progress in the subject of managing projects.

scholarly journals Kin and multilevel selection in social evolution: a never-ending controversy?

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 776 ◽  
Author(s):  
Jos Kramer ◽  
Joël Meunier
Keyword(s):  
Kin Selection ◽  
Group Selection ◽  
Evolutionary Biology ◽  
Social Evolution ◽  
Selection Process ◽  
Structured Populations ◽  
Multilevel Selection ◽  
Current Debate ◽  
The Relationship ◽  
Shed Light

Kin selection and multilevel selection are two major frameworks in evolutionary biology that aim at explaining the evolution of social behaviors. However, the relationship between these two theories has been plagued by controversy for almost half a century and debates about their relevance and usefulness in explaining social evolution seem to rekindle at regular intervals. Here, we first provide a concise introduction into the kin selection and multilevel selection theories and shed light onto the roots of the controversy surrounding them. We then review two major aspects of the current debate: the presumed formal equivalency of the two theories and the question whether group selection can lead to group adaptation. We conclude by arguing that the two theories can offer complementary approaches to the study of social evolution: kin selection approaches usually focus on the identification of optimal phenotypes and thus on the endresult of a selection process, whereas multilevel selection approaches focus on the ongoing selection process itself. The two theories thus provide different perspectives that might be fruitfully combined to promote our understanding of the evolution in group-structured populations.

Philanthropy in Family Enterprises

2015 ◽  
Vol 29 (1) ◽  
pp. 121-141 ◽  
Author(s):  
Neus Feliu ◽  
Isabel C. Botero
Keyword(s):  
Systematic Review ◽  
Family Business ◽  
Future Research ◽  
Business And Society ◽  
Review Of The Literature ◽  
Individual Level ◽  
Family Enterprises ◽  
The Subject ◽  
The Individual

Philanthropy in family enterprises operates at the crossroads of family, business, and society. Most of the research in this area is approached from the business or the individual level; thus, we have a fragmented understanding of philanthropy in family enterprises. This article presents a systematic review of the literature on the subject. Based on 55 sources published between 1988 and 2014, we explain the drivers of this behavior, the vehicles used to practice it, and the outcomes tied to the practice of philanthropy in family enterprises. We identify gaps in our understanding and provide ideas for future research.

Perceptions of the Collective Other

1998 ◽  
Vol 2 (4) ◽  
pp. 243-250 ◽  
Author(s):  
Robert P. Abelson ◽  
Nilanjana Dasgupta ◽  
Jaihyun Park ◽  
Mahzarin R. Banaji
Keyword(s):  
Fundamental Problem ◽  
Group Behavior ◽  
Negative Consequences ◽  
Social Psychological ◽  
Research Focus ◽  
Individual Level ◽  
Single Person ◽  
Or Groups ◽  
The Social ◽  
The Individual

It is contended that perceptions of groups are affected by particular variables that do not apply to individuals (e.g., intragroup similarity and proximity). Importantly, the perception of outgroup threat has incomplete analogs at the individual level. Results from 3 studies support predictable distinctions between representations of individuals and of groups. Study I showed that priming of the word they produces more extreme negative judgments of the protagonist(s) in a story about 4 individuals acting jointly than in the same story with a single person acting alone. The opposite result holds for priming with the word he. Study 2, with Korean participants, demonstrates that actions by individuals or groups elicit differing preferences for redress. Individual responses (e.g., getting mad) to an individual racial insult (e.g., a snub by a waitress) are preferred to collective responses (e.g., circulating a petition), whereas the reverse preferences holdfor a group insult (e.g., taunts from a gang of White youths). In Study 3, cues to the entitivity of a group are introduced. This concept, introduced by Donald Campbell (1958), distinguishes different degrees of “groupness. ” Visual depictions of collections of unfamiliar humanoid creatures (greebles) were used to convey that they were either similar or dissimilar and either proximate or scattered. Results confirm the expectation that similarity and proximity-two entitive conditions-elicit more negative judgments of the group. Attention to other cues for entitivity may enrich social psychological views of stereotyping and prejudice by focusing on perceptions of groups as coordinated actors with the potential to bring about negative consequences. Such experiments point to the needfor greater research focus on the vastly understudied but fundamental problem of the social cognition of group behavior.

Cooperation and Altruism

2001 ◽  
Author(s):  
David Sloan Wilson
Keyword(s):  
Natural Selection ◽  
Evolutionary Theory ◽  
Opposite Direction ◽  
Social Adaptation ◽  
Herbivore Damage ◽  
Individual Level ◽  
Cryptic Coloration ◽  
The Subject ◽  
The Individual ◽  
Shed Light

People have always been fascinated by cooperation and altruism in animals, in part to shed light on our own propensity or reluctance to help others. Darwin’s theory added a certain urgency to the subject because the principle of “nature red in tooth and claw” superficially seems to deny the possibility of altruism and cooperation altogether. Some evolutionary biologists have accepted and even reveled in this vision of nature, giving rise to statements such as “the economy of nature is competitive from beginning to end . . . scratch an ‘altruist’ and watch a hypocrite bleed”. Others have gone so far in the opposite direction as to proclaim the entire earth a unit that cooperatively regulates its own atmosphere (Lovelock 1979). The truth is somewhere between these two extremes; cooperation and altruism can evolve but only if special conditions are met. As might be expected from the polarized views outlined above, achieving this middle ground has been a difficult process. Science is often portrayed as a heroic march to the truth, but in this case, it is more like the Three Stooges trying to move a piano. I don’t mean to underestimate the progress that been made—the piano has been moved—but we need to appreciate the twists, turns, and reversals in addition to the final location. To see why cooperation and altruism pose a problem for evolutionary theory, consider the evolution of a nonsocial adaptation, such as cryptic coloration. Imagine a population of moths that vary in the degree to which they match their background. Every generation, the most conspicuous moths are detected and eaten by predators while the most cryptic moths survive and reproduce. If offspring resemble their parents, then the average moth will become more cryptic with every generation. Anyone who has beheld a moth that looks exactly like a leaf, right down to the veins and simulated herbivore damage, cannot fail to be impressed by the power of natural selection to evolve breathtaking adaptations at the individual level. Now consider the same process for a social adaptation, such as members of a group warning each other about approaching predators.

Empires within and without: the conquest of the self and the Florentine avant-garde

Modern Italy ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 49-62
Author(s):  
Bertrand Marilier
Keyword(s):  
The Self ◽  
Individual Level ◽  
Avant Garde ◽  
Psychological Understanding ◽  
The Subject ◽  
The Individual ◽  
Intellectual Formation ◽  
Relationship Of ◽  
The Relationship ◽  
Intense Debate

This article examines the relationship of the young Giovanni Papini to the notion of imperialism. The period of Papini's intellectual formation was a time of intense debate among the Italian intelligentsia concerning imperialism and its relationship to nation and culture. He joined the conversation with a distinctive interpretation of the idea, one that could at once make him heir apparent to the tradition of Umbertian nationalism, while also rejecting the positivist slant of his forebears. William James's porous conception of the subject and Papini's sense of his own fragmented subjectivity provided the ground for a psychological understanding of imperialism: one that relied on knowledge and appreciation, which translated into literature at the individual level, and into culture at that of the nation. Ultimately, however, disappointments abroad, the demands of nationalist politics, and Papini's own avant-garde posture, led him to abandon his intellectual empire in favour of a more concrete one.

scholarly journals Relatedness and the fraternal major transitions

2000 ◽  
Vol 355 (1403) ◽  
pp. 1647-1655 ◽  
Author(s):  
David C. Queller
Keyword(s):  
Kin Selection ◽  
Germ Line ◽  
Division Of Labour ◽  
Major Transitions ◽  
Insect Societies ◽  
Reproductive Division Of Labour ◽  
Special Relationships ◽  
Reproductive Division ◽  
Major Transitions In Evolution

Many of the major transitions in evolution involved the coalescence of independent lower–level units into a higher organismal level. This paper examines the role of kinship, focusing on the transitions to multicellularity in animals and to coloniality in insects. In both, kin selection based on high relatedness permitted cooperation and a reproductive division of labour. The higher relatedness of haplodiploid females to their sisters than to their offspring might not have been crucial in the origin of insect societies, and the transition to multicellularity shows that such special relationships are not required. When multicellular forms develop from a single cell, selfish conflict is minimal because each selfish mutant obtains only one generation of within–individual advantage in a chimaera. Conditionally expressed traits are particularly immune to within–individual selfishness because such mutations are rarely expressed in chimaeras. Such conditionally expressed altruism genes lead easily to the evolution of the soma, and the germ line might simply be what is left over. In most social insects, differences in relatedness ensure that there will be potential conflicts. Power asymmetries sometimes lead to such decisive settlements of conflicts that social insect colonies can be considered to be fully organismal.

scholarly journals Academic freedom, integrity and research ethics

2018 ◽  
Vol 12 (2) ◽  
pp. 2672-2679
Author(s):  
Anthony G Shannon ◽  
Dr Danielle Eden
Keyword(s):  
Research Ethics ◽  
Academic Freedom ◽  
Academic Integrity ◽  
Individual Level ◽  
The Public ◽  
Public Square ◽  
Conflicting Demands ◽  
The Subject ◽  
The Individual ◽  
Close Relatives

The limits, purpose and scope of academic freedom have been the subject of media controversy, partly because academic freedom and academic integrity are close relatives, the occasional missing link being research ethics. While freedom and integrity should protect each another, it is difficult for institutions and those who navigate them to balance competing and conflicting demands. Some of these demands are at the institutional level and others at the individual level. The purpose of this paper is to tease out some of the issues which are often too sensitive to articulate in the public square.

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