X-Message-Number: 2846 From: (David Stodolsky) Subject: CRYONICS: Group Selection in Evolution Date: Sun, 3 Jul 94 21:29:53 +0200 (MET DST) From: "Stevan Harnad" <> Message-Id: <> To: > Subject: Group Selection in Evolution: BBS Call for Commentators X-Charset: ISO_8859-1 X-Char-Esc: 29 Below is the abstract of a forthcoming target article by: David Sloan Wilson & Elliott Sober on: "RE-INTRODUCING GROUP SELECTION TO THE HUMAN BEHAVIORAL SCIENCES" This article has been accepted for publication in Behavioral and Brain Sciences (BBS), an international, interdisciplinary journal providing Open Peer Commentary on important and controversial current research in the biobehavioral and cognitive sciences. Commentators must be current BBS Associates or nominated by a current BBS Associate. To be considered as a commentator for this article, to suggest other appropriate commentators, or for information about how to become a BBS Associate, please send email to: or or write to: BBS, 20 Nassau Street, #240, Princeton NJ 08542 [tel: 609-921-7771] To help us put together a balanced list of commentators, please give some indication of the aspects of the topic on which you would bring your areas of expertise to bear if you were selected as a commentator. An electronic draft of the full text is available for inspection by anonymous ftp according to the instructions that follow after the abstract. ____________________________________________________________________ RE-INTRODUCING GROUP SELECTION TO THE HUMAN BEHAVIORAL SCIENCES David Sloan Wilson Department of Biological Sciences State University of New York at Binghamton Binghamton New York 13902-6000 Elliott Sober Department of Philosophy University of Wisconsin 5185 Helen C. White Hall 600 North Park Street Madison Wisconsin 53706 KEYWORDS: culture; evolution; group selection; kin selection; inclusive fitness; natural selection; reciprocity; social organization; units of selection. ABSTRACT: In both biology and the human sciences, social groups are sometimes treated as adaptive units whose organization cannot be reduced to individual interactions. This group-level view is opposed by a more individualistic view that treats social organization as a byproduct of self-interest. According to biologists, group-level adaptations can evolve only by a process of natural selection at the group level. During the 1960's and 70's most biologists rejected group selection as an important evolutionary force but a positive literature began to grow during the 70's and is rapidly expanding today. We review this recent literature and its implications for human evolutionary biology. We show that the rejection of group selection was based on a misplaced emphasis on genes as "replicators" which is in fact irrelevant to the question of whether groups can be like individuals in their functional organization. The fundamental question is whether social groups and other higher-level entities can be "vehicles" of selection. When this elementary fact is recognized, group selection emerges as an important force in nature and ostensible alternatives, such as kin selection and reciprocity, reappear as special cases of group selection. The result is a unified theory of natural selection that operates on a nested hierarchy of units. The vehicle-based theory makes it clear that group selection is an important force to consider in human evolution. Humans can facultatively span the full range from self-interested individuals to "organs" of group-level "organisms." Human behavior not only reflects the balance between levels of selection but it can also alter the balance through the construction of social structures that have the effect of reducing fitness differences within groups, concentrating natural selection (and functional organization) at the group level. These social structures and the cognitive abilities that produce them allow group selection to be important even among large groups of unrelated individuals. -------------------------------------------------------------- To help you decide whether you would be an appropriate commentator for this article, an electronic draft is retrievable by anonymous ftp from princeton.edu according to the instructions below (the filename is bbs.wilson). Please do not prepare a commentary on this draft. Just let us know, after having inspected it, what relevant expertise you feel you would bring to bear on what aspect of the article. The file is also retrievable using archie, gopher, veronica, etc. ------------------------------------------------------------- To retrieve a file by ftp from an Internet site, type either: ftp princeton.edu or ftp 128.112.128.1 When you are asked for your login, type: anonymous Enter password as per instructions (make sure to include the specified @), and then change directories with: cd /pub/harnad/BBS To show the available files, type: ls Next, retrieve the file you want with (for example): get bbs.wilson When you have the file(s) you want, type: quit These files can also be retrieved using gopher, archie, veronica, etc. ---------- Where the above procedure is not available there are two fileservers: and that will do the transfer for you. To one or the other of them, send the following one line message: help for instructions (which will be similar to the above, but will be in the form of a series of lines in an email message that ftpmail or bitftp will then execute for you). JANET users without ftp can instead utilise the file transfer facilities at sites uk.ac.ft-relay or uk.ac.nsf.sun. Full details are available on request. ------------------------------------------------------------- David S. Stodolsky, PhD Internet: Peder Lykkes Vej 8, 4. tv. Internet: DK-2300 Copenhagen S, Denmark Voice + Fax: + 45 32 97 66 74 Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=2846