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Evolving Thoughts

One man's struggle against impermanence

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Grumpy John Wilkins is an aged, eternal student, who thinks philosophy of biology is at least as interesting as politics or sport and twice as important. He has a PhD from the University of Melbourne and a position as a Postdoctoral Fellow at the University of Queensland, in Australia. After a varied career, involving factories, gardening, civil service, publishing, graphics, public relations but not, unfortunately for the CV, driving a truck, John finally completed his thesis on species concepts, which he is working into two books. One has been accepted for publication, and will come out in 2008; the other may be contracted soon. He is also interested in cultural evolution, philosophy of religion, Macintosh computers and his kids (they sort of make it a necessity, you know?).

If anyone knows of a tenurable, or even medium term, job in philosophy of biology, let me know. Have library, will travel. The contract runs out soon...

This blog is designed to host any random thoughts that happen to be passing through my forebrain at a given moment. So there will be errors...

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Basic Concepts:

Basic Concepts in Science: A list

This is a list of the Basic Concepts posts being put up by Science Bloggers and others. It will be updated and put to the top when new entries are published.

Del.icio.us Evolving Thoughts

We got delicioused, for the Basic Concepts Post, and wow, scores of links and (I hope) new readers. Some of the referrals [UPDATED]:...

What is "life", at last

Recently, that is since 1975 or so, the view has arisen that a living thing is something that satisfies several conditions....

What is "life", again?

Now we turn to the modern accounts of life. In 1828, Friedrich Wöhler produced uric acid without using “kidney of man or dog”. Prior to that time, there was considered to be something different between organic chemistry and inorganic...

The meaning of "life"

Carl Zimmer has one of his usually clear and precise articles on recent work on the nature of life, focussing on the work of Carol Cleland, who is at the National Astrobiology Institute, despite reduced funding for actual science...

What is an individual?

Rob Wilson has a new entry up at the Stanford Encyclopedia of Philosophy, entitled "The Biological notion of an individual". It discusses an interesting problem, one that goes back to discussions by Julian Huxley in 1911. What is an...

Philosophy is to science, as ornithologists are to birds: 3. Science is a Dynamic Process

In this post, I want to propose my own view, or rather the views I have come to accept, about the nature of science. [Part 1; Part 2]...

Philosophy is to science, as ornithologists are to birds: 2. Two topics of philosophy of science

Philosophy of science deals largely with two general topics: Metaphysics and Epistemology. These are general topics of philosophy, and in the philosophy of science they deal only with the metaphysics and epistemology of science. So there are no overarching...

Philosophy is to science, as ornithologists are to birds: 1. Introduction

This three-part series is a talk I gave a while back to some ecologists and molecular biologists. It is a brief overview of the aims and relationship between science and philosophy of science, with a special reference to the...

Basic concepts: Ancestors

Some ideas one might think are pretty clear.... But I am astounded how few people understand this simple idea in the context of evolution. ... The basis for evolutionary thinking is the notion of an evolutionary tree, or a historical genealogy of species. It looks somewhat like the diagram in the header, which is a rendering of the first evolutionary tree from Darwin's Notebooks. One species is the ancestor of another if it is lower in the tree diagram. ... That seems simple enough, right? Well ancestry has a few wrinkles.

What makes natural selection a process powerful enough to bring about the evolution of adaptations?

Charles Darwin's classic definition of the ecological causes ("struggle for existence") and genetic consequences of selection ... can be restated in modern scientific language as follows: Natural/sexual selection is the ecological interactions an organism has with ((1) the physical conditions of the environment, (2) individuals of other species, and (3) individuals of the same species that affects the number of times the organism successfully reproduces the genes the organism is carrying.

Basic concepts: Allopatry and sympatry

There are a cluster of terms used by biologists to describe where organisms live or grow, and they are: sympatric, allopatric, parapatric, peripatric, stasipatric, and dichopatric. This flock of technical terms is confusing to the newcomer (and to some biologists), but there is a kind of logic - as much as in the evolution of any technical jargon - that will make it clearer, and at the same time allow us to set up the alternative views on the fundamental evolutionary process of common descent: speciation.

Basic Concepts: Progress, Primitive and Advanced

One of the more difficult conceptual problems the layperson has with biology lies in the simple word "primitive". It has many antonyms - "modern", "evolved" and "derived", and like many biological uses of ordinary words, everybody thinks they understand it, and doesn't.

Basics: Introduction to Philosophy of Biology

Last year and the year before I helped teach Philosophy of the Life Sciences here, and we used, respectively, one textbook and no textbook. Right now I'm reading a rather marvellous book, that would have set me up years in advance of where I am now, so this got me thinking (it's the job description, you know): what are the textbooks on Philosophy of Biology, and what are their respective merits?

The many faces of "evolution"

This is a classic case of the sorts of strawman view of evolution that Edward Humes discusses when he notes that there is the real theory of evolution, as discussed by biologists, and the cartoon version that creationists discuss in order to inflame rejection against evolution itself....

Theory

Theory: A word that gets used a lot in discussing science, or attacking it.

Biohumanities podcasts

The Biohumanities Project of Paul Griffiths, of which I am a minor part, has a page up of talks and discussions at conferences and workshops, recorded for podcasting.... Some of the crispy goodness: A conference on mechanism and reduction, a conference on the philosophy of ecology, and a conference on evidence based medicine, plus talks on emotion, essentialism and biological hierarchies.

Species

First of all I'd like to disagree with the entire way the debate has been framed over the past 150 years or so and state this: There is only one species concept. That is to say, there is only one concept that we are all trying to define in many ways, according to both our preferred theories of how species come into being and maintain themselves over evolutionary time, and what happens to be the general case for the group of organisms we have in our minds when we attempt our definitions.

Fitness

Fitness. Of the many concepts of evolution, this is perhaps one of the more widely misunderstood.

More basic concepts

A couple more Basic Concepts posts have been put up. Chaz Orzel at Uncertain Principles defines "Force" in physics. And PZ Myers at Pharyngula defines "Gene". However, PZ does this as a molecular biologist would, and ignores the phenotypic effects...

Basic concepts: Normal distributions

Mark Chu-Carroll has a good short discussion of the statistical concept of a "normal distribution" up....

Moran on evolution

Larry Moran has a Basic Concepts post on Evolution. It's not quite what I'd have written, but it's good anyway. Even if he isn't sufficiently selectionist and gene-centric......

Clade

This is the first in an irregular series of basic concepts in science, that I suggested to the Seed Bloggers we might do from time to time. If anyone wants to suggest a revision, because I got it wrong...

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