Stephen J. Gould's Legacy
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Fritz Allhoff
Philosophies of the Sciences Philosophies of the Sciences A Guide Edited by Fritz Allhoff A John Wiley & Sons, Ltd., Publication This edition first published 2010 © 2010 Blackwell Publishing Ltd Blackwell Publishing was acquired by John Wiley & Sons in February 2007. Blackwell’s publishing program has been merged with Wiley’s global Scientific, Technical, and Medical business to form Wiley-Blackwell. Registered Office John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, United Kingdom Editorial Offices 350 Main Street, Malden, MA 02148-5020, USA 9600 Garsington Road, Oxford, OX4 2DQ, UK The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, UK For details of our global editorial offices, for customer services, and for information about how to apply for permission to reuse the copyright material in this book please see our website at www.wiley.com/wiley-blackwell. The right of Fritz Allhoff to be identified as the author of the editorial material in this work has been asserted in accordance with the Copyright, Designs and Patents Act 1988. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, except as permitted by the UK Copyright, Designs and Patents Act 1988, without the prior permission of the publisher. Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic books. Designations used by companies to distinguish their products are often claimed as trademarks. All brand names and product names used in this book are trade names, service marks, trademarks or registered trademarks of their respective owners. -
What Is a Species, and What Is Not? Ernst Mayr Philosophy of Science
What Is a Species, and What Is Not? Ernst Mayr Philosophy of Science, Vol. 63, No. 2. (Jun., 1996), pp. 262-277. Stable URL: http://links.jstor.org/sici?sici=0031-8248%28199606%2963%3A2%3C262%3AWIASAW%3E2.0.CO%3B2-H Philosophy of Science is currently published by The University of Chicago Press. Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at http://www.jstor.org/about/terms.html. JSTOR's Terms and Conditions of Use provides, in part, that unless you have obtained prior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive only for your personal, non-commercial use. Please contact the publisher regarding any further use of this work. Publisher contact information may be obtained at http://www.jstor.org/journals/ucpress.html. Each copy of any part of a JSTOR transmission must contain the same copyright notice that appears on the screen or printed page of such transmission. The JSTOR Archive is a trusted digital repository providing for long-term preservation and access to leading academic journals and scholarly literature from around the world. The Archive is supported by libraries, scholarly societies, publishers, and foundations. It is an initiative of JSTOR, a not-for-profit organization with a mission to help the scholarly community take advantage of advances in technology. For more information regarding JSTOR, please contact [email protected]. http://www.jstor.org Tue Aug 21 14:59:32 2007 WHAT IS A SPECIES, AND WHAT IS NOT?" ERNST MAYRT I analyze a number of widespread misconceptions concerning species. -
Systematics in Palaeontology
Systematics in palaeontology THOMAS NEVILLE GEORGE PRESIDENT'S ANNIVERSARY ADDRESS 1969 CONTENTS Fossils in neontological categories I98 (A) Purpose and method x98 (B) Linnaean taxa . x99 (e) The biospecies . 202 (D) Morphology and evolution 205 The systematics of the lineage 205 (A) Bioserial change 205 (B) The palaeodeme in phyletic series 209 (e) Palaeodemes as facies-controlled phena 2xi Phyletic series . 2~6 (A) Rates of bioserial change 2~6 (B) Character mosaics 218 (c) Differential characters 222 Phylogenetics and systematics 224 (A) Clade and grade 224 (a) Phylogenes and cladogenes 228 (e) Phylogenetic reconstruction 23 I (D) Species and genus 235 (~) The taxonomic hierarchy 238 5 Adansonian methods 240 6 References 243 SUMMARY A 'natural' taxonomic system, inherent in evolutionary change, pulses of biased selection organisms that themselves demonstrate their pressure in expanded and restricted palaeo- 'affinity', is to be recognized perhaps only in demes, and permutations of character-expres- the biospecies. The concept of the biospecies as sion in the evolutionary plexus impose a need a comprehensive taxon is, however, only for a palaeontologically-orientated systematics notional amongst the vast majority of living under which (in evolutionary descent) could organisms, and it is not directly applicable to be subsumed the taxa of the neontological fossils. 'Natural' systems of Linnaean kind rest moment. on assumptions made a priori and are imposed Environmentally controlled morphs, bio- by the systematist. The graded time-sequence facies variants, migrating variation fields, and of the lineage and the clade introduces factors typological segregants are sources of ambiguity into a systematics that cannot well be accommo- in a distinction between phenetic and genetic dated under pre-Darwinian assumptions or be fossil grades. -
The Tempo and Mode of Evolution Reconsidered Stephen Jay Gould
Punctuated Equilibria: The Tempo and Mode of Evolution Reconsidered Stephen Jay Gould; Niles Eldredge Paleobiology, Vol. 3, No. 2. (Spring, 1977), pp. 115-151. Stable URL: http://links.jstor.org/sici?sici=0094-8373%28197721%293%3A2%3C115%3APETTAM%3E2.0.CO%3B2-H Paleobiology is currently published by Paleontological Society. Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at http://www.jstor.org/about/terms.html. JSTOR's Terms and Conditions of Use provides, in part, that unless you have obtained prior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive only for your personal, non-commercial use. Please contact the publisher regarding any further use of this work. Publisher contact information may be obtained at http://www.jstor.org/journals/paleo.html. Each copy of any part of a JSTOR transmission must contain the same copyright notice that appears on the screen or printed page of such transmission. The JSTOR Archive is a trusted digital repository providing for long-term preservation and access to leading academic journals and scholarly literature from around the world. The Archive is supported by libraries, scholarly societies, publishers, and foundations. It is an initiative of JSTOR, a not-for-profit organization with a mission to help the scholarly community take advantage of advances in technology. For more information regarding JSTOR, please contact [email protected]. http://www.jstor.org Sun Aug 19 19:30:53 2007 Paleobiology. -
Modelling the Evolution and Expected Lifetime of a Deme's Principal Gene
Letters in Biomathematics, 2015 Vol. 2, No. 1, 13–28, http://dx.doi.org/10.1080/23737867.2015.1040859 RESEARCH ARTICLE Modelling the evolution and expected lifetime of a deme’s principal gene sequence B.K. Clark∗ Department of Physics, Illinois State University, Normal, IL, USA (Received 3 April 2015; accepted 10 April 2015) The principal gene sequence (PGS), defined as the most common gene sequence in a deme, is replaced over time because new gene sequences are created and compete with the current PGS, and a small fraction become PGSs. We have developed a set of coupled difference equations to represent an ensemble of demes, in which new gene sequences are introduced via chromosomal inversions. The set of equations used to calculate the expected lifetime of an existing PGS include inversion size and rate, recombination rate and deme size. Inversion rate and deme size effects are highlighted in this work. Our results compare favourably with a cellular automaton-based representation of a deme. Keywords: inversion; recombination; gene sequence; stasipatric speciation 1. Introduction Chromosomal inversions are examples of a broader group of chromosomal rearrangements. Stasipatric speciation is when chromosomal inversions are the primary mechanism of speciation (White, 1978); however, examples of speciation typically include chromosomal inversions only as a contributing factor. Examples are ubiquitous, including Drosophila (Ayala & Coluzzi, 2005; Noor, Grams, Bertucci, & Reiland, 2001; Ranz et al., 2007), sunflowers (Rieseberg, 2001; Rieseberg et al., 2003), and primates (Ayala & Coluzzi, 2005; Lee, Han, Meyer, Kim, & Batzer, 2008; Navarro & Barton, 2003a, 2003b), for example. Suppressed recombination of inverted chromosome segments has been investigated as a speciation mechanism (Ayala & Coluzzi, 2005; Navarro & Barton, 2003a, 2003b), and the precise role of inversions in speciation is still debated (Faria & Navarro, 2010). -
What Is a Population? an Empirical Evaluation of Some Genetic Methods for Identifying the Number of Gene Pools and Their Degree of Connectivity
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Publications, Agencies and Staff of the U.S. Department of Commerce U.S. Department of Commerce 2006 What is a population? An empirical evaluation of some genetic methods for identifying the number of gene pools and their degree of connectivity Robin Waples NOAA, [email protected] Oscar Gaggiotti Université Joseph Fourier, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/usdeptcommercepub Waples, Robin and Gaggiotti, Oscar, "What is a population? An empirical evaluation of some genetic methods for identifying the number of gene pools and their degree of connectivity" (2006). Publications, Agencies and Staff of the U.S. Department of Commerce. 463. https://digitalcommons.unl.edu/usdeptcommercepub/463 This Article is brought to you for free and open access by the U.S. Department of Commerce at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Publications, Agencies and Staff of the U.S. Department of Commerce by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Molecular Ecology (2006) 15, 1419–1439 doi: 10.1111/j.1365-294X.2006.02890.x INVITEDBlackwell Publishing Ltd REVIEW What is a population? An empirical evaluation of some genetic methods for identifying the number of gene pools and their degree of connectivity ROBIN S. WAPLES* and OSCAR GAGGIOTTI† *Northwest Fisheries Science Center, 2725 Montlake Blvd East, Seattle, WA 98112 USA, †Laboratoire d’Ecologie Alpine (LECA), Génomique des Populations et Biodiversité, Université Joseph Fourier, Grenoble, France Abstract We review commonly used population definitions under both the ecological paradigm (which emphasizes demographic cohesion) and the evolutionary paradigm (which emphasizes reproductive cohesion) and find that none are truly operational. -
The Genesis of IOPB: a Personal Memoir
Heywood • Genesis of IOPB TAXON 60 (2) • April 2011: 320–323 The genesis of IOPB: A personal memoir Vernon H. Heywood School of Biological Sciences, University of Reading, Reading RG6 6AS, U.K.; [email protected] Abstract An account is given of the circumstances that led to the decision to create the International Organization of Plant Biosystematics. The pioneer work of biologists on both sides of the Atlantic in biosystematics and experimental taxonomy is outlined, especially that of the San Francisco Bay group in the U.S.A. and that of J.S.L. Gilmour, G. Turesson, and J.W. Gregor on genecology and the deme terminology in Europe. The continuing need for a biosystematics perspective in our understand- ing of taxonomy at the species level and below is stressed. Keywords biosystematics; deme terminology; experimental taxonomy; genecology INTRODUCTION In general, as I have noted elsewhere (Heywood, 2002), few taxonomic text books were available and those that did In the post-war years, the taxonomic world, like the rest exist were out of date or scarcely stimulating: they focused of botanical science, was beginning to go through a period largely on classification at the family level and above and on of reassessment and development. The focus of mainstream constructing so-called phylogenetic systems based on supposed taxonomy was still on writing Floras and monographs and trends in character evolution while largely ignoring how to in some countries this was largely confined to the national undertake taxonomy at the genus and species level and below. institutions while taxonomic teaching and research had fallen It was largely for this reason that Peter Davis and I decided to out of favour in many universities. -
Deme, a Stock, Or a Subspecies? These and Other Definitions
Is It a Deme, a Stock, or a Subspecies? These and Other Definitions BY Robert L. Wilbur Jim Seeb Lisa Seeb and Hal Geiger Regional Information ~e~ort'No. 5598-09 Alaska Department of Fish and Game Commercial Fisheries Management and Development Division Juneau, Alaska March 1998 1 The Regional Information Report Series was established in 1987 to provide an information access system for all unpublished divisional reports. These reports frequently serve diverse ad hoc informational purposes or archive basic uninterpreted data. To accommodate timely reporting of recently collected information, reports in this series undergo only limited internal review and may contain preliminary data; this information may be subsequently finalized and published in the formal literature. Consequently, these reports should not be cited without prior approval of the author or the Division of Commercial Fisheries. INTRODUCTION These population-based definitions were originally prepared in 1996 to aid the Alaska Board of Fisheries in developing consistent applications for the terms used in their guiding principles, and to assist in dialog related to improving management of fish populations. They are archived in this report for reference purposes with only minor changes from the draft originally reviewed by the board 2 years ago. These terms are important because application of the board's guiding principles can affect the management regimes the board selects to achieve its objectives. These decisions will significantly influence the future long-term well-being of fish stocks, as well as the socioeconomic well-being of the resource users. Therefore, it is important the terms be clearly understood for not only their literal meaning, but more importantly, for their pragmatic use in the real world of Alaska's fisheries management. -
Evolution International Journal of Organic Evolution Published by the Society for the Study of Evolution
EVOLUTION INTERNATIONAL JOURNAL OF ORGANIC EVOLUTION PUBLISHED BY THE SOCIETY FOR THE STUDY OF EVOLUTION Vol. 58 February 2004 No. 2 Evolution, 58(2), 2004, pp. 211±221 ADAPTATION AND SPECIES RANGE JOEL R. PECK1,2 AND JOHN J. WELCH1 1Centre for the Study of Evolution, School of Life Sciences, University of Sussex, Brighton BN1 9QG, East Sussex, United Kingdom 2E-mail: [email protected] Abstract. Phase III of Sewall Wright's shifting-balance process involves the spread of a superior genotype throughout a structured population. However, a number of authors have suggested that this sort of adaptive change is unlikely under biologically plausible conditions. We studied relevant mathematical models, and the results suggest that the concerns about phase III of the shifting-balance process are justi®ed, but only if environmental conditions are stable. If environmental conditions change in a way that alters species range, then phase III can be effective, leading to an enhancement of adaptedness throughout a structured population. Key words. Adaptation, epistasis, group selection, shifting balance, species range. Received June 3, 2003. Accepted September 15, 2003. Some genotypes confer a relatively high level of ®tness. notype invading an area where other genotypes are common However, because of epistasis (®tness interactions among will ®nd that, when they mate, their genomes are broken apart loci) the alleles that constitute a high-®tness genotype may by segregation and recombination (Wright 1931, 1932, 1949, not confer high ®tness when they occur in combination with 1970, 1977, 1982; Barton and Hewitt 1989; Coyne et al. other alleles. In this type of situation, we say that the high- 1997). -
Adaptationism and the Logic of Research Questions: How to Think Clearly About Evolutionary Causes
Biol Theory (2015) 10:343–362 DOI 10.1007/s13752-015-0214-2 ORIGINAL ARTICLE Adaptationism and the Logic of Research Questions: How to Think Clearly About Evolutionary Causes Elisabeth A. Lloyd1 Received: 20 March 2015 / Accepted: 29 May 2015 / Published online: 9 July 2015 Ó Konrad Lorenz Institute for Evolution and Cognition Research 2015 Abstract This article discusses various dangers that popular methods, despite its benign reputation. In ‘‘The accompany the supposedly benign methods in behavioral Spandrels of San Marco and the Panglossian Paradigm,’’ evolutionary biology and evolutionary psychology that fall Gould and Lewontin (1979) drew attention to several under the framework of ‘‘methodological adaptationism.’’ dangers in using this method. In this article, I present a A ‘‘Logic of Research Questions’’ is proposed that aids in framework for analysis that makes their worries clearer. I clarifying the reasoning problems that arise due to the also warn of further risks of this methodological frame- framework under critique. The live, and widely practiced, work, expanding on the dangers it poses to scientific rea- ‘‘evolutionary factors’’ framework is offered as the key soning in evolutionary biology. At the same time, I comparison and alternative. The article goes beyond the emphasize that I am not attacking the notion of looking for traditional critique of Stephen Jay Gould and Richard C. adaptations in evolutionary studies: I am not anti-adapta- Lewontin, to present problems such as the disappearance of tion. The issues concern which framework is most appro- evidence, the mishandling of the null hypothesis, and priate and fruitful. failures in scientific reasoning, exemplified by a case from As evolutionary biology is usually taught and con- human behavioral ecology. -
Primate Foraging Adaptations: Two R.Esear.Clz Strategies 257
244 Stuart A. Altn?ann Primate for.aging adaptations: two research strategies 245 expanding knowledge of primates in the wild is that numerous potential Of these two strategies for the study of adaptations in wild primates or adaptations for foraging have been described. These proposed adaptations other animals, one is based on a priori design specifications for optimal are at virtually every level of biological organization, including social phenotypes and has been applied to primates in their natural habitats. The and individual behavior, mental states, physiology, anatomy, and morph- other is based on multivariate selection theory, which deals with the effects of ology (Rodman & Cant, 1984; Whiten & Widdowson, 1992; Miller, 2002). selection acting simultaneously on multiple characters, and has been applied However, an adaptation proposed is not an adaptation confirmed. to various other animals. Emphasis here will be placed on what each strategy Gould & Vrba (1982) pointed out the presence of two distinct adaptation can reveal about adaptations, the types of data that each requires, and how one concepts in the literature, one historical, emphasizing traits' origins and their can get from one to the other. For details of field techniques, logistics, past histories of selection, the other nonhistorical, emphasizing current func- sampling methods, assumptions, data analysis, and so forth, the reader should tions of traits and their contributions to fitness. My discussion is limited to turn to the primary literature. the latter. From the standpoint of the current functions of phenotypic traits and their impact on selection, a trait variant is better adapted, relative to competing Measuring adaptiveness in extant species variants in other individuals of the same species, to the extent that it directly contributes to fitness. -
Stephen Jay Gould Papers M1437
http://oac.cdlib.org/findaid/ark:/13030/kt229036tr No online items Guide to the Stephen Jay Gould Papers M1437 Jenny Johnson Department of Special Collections and University Archives August 2011 ; revised 2019 Green Library 557 Escondido Mall Stanford 94305-6064 [email protected] URL: http://library.stanford.edu/spc Guide to the Stephen Jay Gould M1437 1 Papers M1437 Language of Material: English Contributing Institution: Department of Special Collections and University Archives Title: Stephen Jay Gould papers creator: Gould, Stephen Jay source: Shearer, Rhonda Roland Identifier/Call Number: M1437 Physical Description: 575 Linear Feet(958 boxes) Physical Description: 1180 computer file(s)(52 megabytes) Date (inclusive): 1868-2004 Date (bulk): bulk Abstract: This collection documents the life of noted American paleontologist, evolutionary biologist, and historian of science, Stephen Jay Gould. The papers include correspondence, juvenilia, manuscripts, subject files, teaching files, photographs, audiovisual materials, and personal and biographical materials created and compiled by Gould. Both textual and born-digital materials are represented in the collection. Preferred Citation [identification of item], Stephen Jay Gould Papers, M1437. Dept. of Special Collections, Stanford University Libraries, Stanford, Calif. Publication Rights While Special Collections is the owner of the physical and digital items, permission to examine collection materials is not an authorization to publish. These materials are made available for use