“Species”

On the thread entitled “Species Kinds”, commenter phoodoo asks:

What’s the definition of a species?

A simple question but hard to answer. Talking of populations of interbreeding individuals immediately creates problems when looking at asexual organisms, especially the prokaryotes: bacteria and archaea. How to delineate a species temporally is also problematic. Allan Miller links to an excellent basic resource on defining a species and the Wikipedia entry does not shy away from the difficulties.

In case phoodoo thought his question was being ignored, I thought I’d open this thread to allow discussion without derailing the thread on “kinds”.

1,428 thoughts on ““Species”

  1. Rudolf Steiner wrote about the evolution of human Æsthetic understanding and freedom from nature here.

    Here is some of what he wrote:

    Page 43
    At a time when Spirit and Nature were so closely joined, a science of Art could not come into existence, nor was this possible at a time when they faced each other in unreconciled opposition. For the genesis of Æsthetics a time was necessary when man, in freedom and independence from the shackles of Nature, perceived the spirit in its undimmed purity, but a time, also, when a reunion with Nature is again possible. That the standpoint of the Greeks should be superseded, is not without good reason. For in the sum total of accidents constituting the world in which we feel ourselves placed, we can never find the divine, the necessary; we see nothing around us but facts that might equally well be different; we see nothing but individuals, and our spirit strives for the expression of the species, for the archetype; we see nothing but the finite, the perishable, and our spirit strives for the infinite, the imperishable, the eternal. And so if man’s spirit, once estranged from Nature, is to return to Nature, it must be to something different from that sum total of accidents. It is for this return that Goethe stands; a return to Nature, but with the rich abundance of a developed spirit, with the level of culture of modern times.

    He continues:

    Page 45
    Goethe does not fly from reality in order to create an abstract thought-world, having nothing in common with reality; he plunges deep into reality, in its eternal mutation, its genesis and movement, to find its laws that are immutable: he confronts the individual to behold the archetype. Thus were born in his spirit the plant-type and the animal-type, which are nothing but the Ideas of the plant and the animal. These are no empty general ideas that are part of a dry theory; they are the essential foundation of organisms — substantial and concrete, animated and distinguishable. Distinguishable, to be sure, not for the outer senses, but only for that higher contemplative capacity that Goethe discusses in his essay on ‘Contemplative Discernment.’ In the Goethean sense, ideas are just as objective as the colours and the forms of things, but they are only perceivable for those whose perceptive faculty is regulated for this purpose; just as colours and forms are only there for those who see, and not for the blind. If we approach the objective world with a non-receptive spirit, it does not disclose itself to us. Without the instinctive capacity for apprehending ideas, the latter remain an ever-sealed book. Here none saw as deeply as Schiller into the structure of Goethe’s genius.

    On 23rd August, 1794, he enlightens Goethe, in the following words, on the fundamental qualities of his nature: ‘You gather together the whole of Nature in order to gain light on the single detail; where the forms of the phenomena merge into the universal, there you seek the explanation and the reason for the individual. From the simple organisation you mount, step by step, to the more complicated, in order finally to build up the most complicated of all — Man — genetically, and from the materials of Nature’s whole edifice. While thus creating him afresh after Nature’s pattern, you seek to penetrate the secret of his construction.’ This re-creation provides a key for the understanding of Goethe’s conception of the world. If we wish really to rise to the primal types of things, to the immutable in the general mutation, we must revert to the genesis, we must witness Nature create; we must not consider what has reached completion, for this no longer corresponds wholly to the Idea which comes to expression in it. This is the meaning of Goethe’s words in his essay on ‘Contemplative Discernment:’ ‘If, in the sphere of morality, through belief in God, virtue and immortality, we seek to raise ourselves to a higher region and draw near to the first Being, the same should be the case in the sphere of the intellect — that, through the contemplation of an ever-creating Nature, we should make ourselves worthy of spiritual participation in her production. So did I press on untiringly to that original primal type.’ Thus Goethe’s archetypes are no empty forms; they are the productive forces behind the phenomena. This is the ‘Higher Nature’ in Nature over which Goethe wished to gain control. We gather from this that the reality spread out before our senses in no case represents something on the level of which a man who has attained a higher standard of culture can remain stationary. Only when man transcends this reality — breaks the shell and makes for the kernel — is that revealed to him, which the world holds together in its innermost recess. Nevermore can we find satisfaction in the isolated event in nature, but only in the law of nature; nevermore in the single and the particular, but only in the general and the universal.

    I know keiths would prefer to imagine the idea of God and earthly events as a straight forward case of cause and effect with the former being the direct cause of everything, but reality is very far from being as simple as that.

  2. CharlieM:

    I know keiths would prefer to imagine the idea of God and earthly events as a straight forward case of cause and effect with the former being the direct cause of everything, but reality is very far from being as simple as that.

    The relevant questions are

    1) what are God’s capabilities?

    and

    2) given those capabilities, does his behavior indicate that he is loving?

    For most Christians, the answer to #1 is “he’s omnisicient and omnipotent”, and the answer to #2, if they’re being honest, is “No — his behavior indicates an appalling lack of love for his creatures.”

    One way to get God off the hook is to argue that he’s very weak. Suppose, for example, that Satan is responsible for hurricanes and floods, and that God is too weak to prevent them and too weak to warn us about them, because every time he tries to do so, Satan steps in and prevents the message from getting through. God loves us and wants to help us, but he’s simply too weak.

    That gets God off the hook for being an unloving ass. Unfortunately it also makes him a supernatural weakling, which is a hypothesis that most Christians are unwilling to accept.

    How would you answer those two questions, and why?

  3. keiths:
    Alan:

    What offer?

    keiths: You need my help to answer those questions?

    Followed by:

    keiths: I’ll let you struggle with that on your own.

    If you don’t intend to make good on your offers, better not to make them.

  4. keiths:
    Alan,

    Yes. It was there before you showed up, and you’ve finally noticed it.

    You are castigating me for only noticing your new post some 2 hours or so after you posted it? For some of that time I was asleep. This morning, I happened to have some time to glance at TSZ around 8.30 am (French time) The trigger for noticing you had posted it was Rumraket’s comment with the the hilarious attachment. Ten minutes later I comment. Finally?

    You really think there is justification for that “finally”?

  5. keiths: God is supposed to be morally superior to humans.

    Mung: In keiths v. God maybe. Here’s a bit of news for you. It’s not a morality contest.

    keiths: Right. God is supposed to be vastly superior to humans, in moral terms.

    Wrong again boy theologian.

    keiths: Perfect, in fact. It it isn’t supposed to be a contest at all.

    Better, but still not getting it. If it’s not a contest, why are you trying to make it a contest?

  6. Alan Fox: If you don’t intend to make good on your offers, better not to make them.

    In fact, there is a thread up now showing just how keiths fails to make good on his offers.

  7. Keiths wishes God were good.

    Keith doesn’t have any idea what he means by good.

    keiths is perplexed by keiths.

  8. keiths: The relevant questions are

    1) what are God’s capabilities?

    )The relevant question would need to be what are God capabilties, attributes and goals?

    2) given those capabilities, does his behavior indicate that he is loving?

    2) given those capabilities,attributes and goals ,does God’s choices indicate the attribution of love is true?

    For most Christians, the answer to #1 is “he’s omnisicient and omnipotent”, and the answer to #2, if they’re being honest, is “No — his behavior indicates an appalling lack of love for his creatures.”

    Doubtful, the easiest response is “when informed Christians talk about the love of God they mean something very different from what is meant in the surrounding culture.”

  9. it appears that the “species” discussion has run it’s course for now.
    Thank you to all that participated. It was interesting I learned a lot.

    peace

  10. Alan:

    Another offer you fail to fulfill.

    keiths:

    What offer?

    Alan:

    keiths: You need my help to answer those questions?

    Followed by:

    keiths: I’ll let you struggle with that on your own.

    Neither of those was an offer. The first was an incredulous response to the dumb questions you were asking, and the second was an exhortation for you to get off your ass and do your own thinking.

    Now, will you spend the next month denying your mistake, or will you, for once, have the sense to accept it and move on?

  11. keiths:

    The relevant questions are

    1) what are God’s capabilities?

    newton:

    )The relevant question would need to be what are God capabilties, attributes and goals?

    No, because if you ask Christians about God’s attributes, they’ll include “loving” in the list. We already know that Christians assume God is loving. What we want to know is whether God’s actual behavior fits well with that assumption.

    The relevant question is about God’s capabilities. If God is powerful, then his observed behavior clashes with the assumption that he is loving. But as I explained to CharlieM above, a weakling God could still be compatible with the evidence:

    One way to get God off the hook is to argue that he’s very weak. Suppose, for example, that Satan is responsible for hurricanes and floods, and that God is too weak to prevent them and too weak to warn us about them, because every time he tries to do so, Satan steps in and prevents the message from getting through. God loves us and wants to help us, but he’s simply too weak.

    That gets God off the hook for being an unloving ass. Unfortunately it also makes him a supernatural weakling, which is a hypothesis that most Christians are unwilling to accept.

  12. keiths:

    The relevant questions are

    1) what are God’s capabilities?

    and

    2) given those capabilities, does his behavior indicate that he is loving?

    For most Christians, the answer to #1 is “he’s omnisicient and omnipotent”, and the answer to #2, if they’re being honest, is “No — his behavior indicates an appalling lack of love for his creatures.”

    [emphasis added]

    newton:

    Doubtful, the easiest response is “when informed Christians talk about the love of God they mean something very different from what is meant in the surrounding culture.”

    Did you miss the “if they’re being honest” part?

  13. keiths: Did you miss the “if they’re being honest” part?

    What makes you think they are wrong, had much experience with infinite beings? A dog’s love for his master isn’t the same as human’s love for his child.

    So we are talking about a God’s love for His creation from which He demands complete obedience, but in a twist he designed the creatures so they had the desire to disobey.

    Weird love but love they might say.

  14. newton,

    What makes you think they are wrong, had much experience with infinite beings?

    You keep losing track of what we are discussing.

    We’re talking about what most Christians would say if they honestly answered my questions:

    The relevant questions are

    1) what are God’s capabilities?

    and

    2) given those capabilities, does his behavior indicate that he is loving?

    For most Christians, the answer to #1 is “he’s omnisicient and omnipotent”, and the answer to #2, if they’re being honest, is “No — his behavior indicates an appalling lack of love for his creatures.”

    [emphasis added]

    I am not a Christian. My experience with infinite beings, or lack thereof, is utterly irrelevant to the question of how Christians would respond, if they were being honest, to the questions I posed above.

  15. keiths,

    If Christians were being honest, they would tell you you are too stupid to know what you are talking about.

    But maybe they are too polite.

  16. phoodoo,

    I’m still interested in hearing your answers to my questions.

    It’s your chance to set me straight.

    I predict, instead, that you will run away from them.

  17. phoodoo,

    Why worship a God of whom you are so deeply ashamed?

    If his behavior embarrasses you so much that you’d prefer to talk about something — anything — else, isn’t that a sign that worship is, er, inappropriate?

    Or are you pulling a Sal, figuring that if you suck up to God, no matter how reprehensible his behavior is, you might get something out of the deal?

  18. phoodoo:
    keiths,

    If Christians were being honest, they would tell you you are too stupid to know what you are talking about.

    But maybe they are too polite.

    Not around here

  19. keiths: You keep losing track of what we are discussing.

    We’re talking about what most Christians would say if they honestly answered my questions:

    And I said they would say what divine infinite love means in the view of Christian scholars is different than an anthropomorphic view of love. So to judge God as unloving because nature is indifferent to humanity is erroneous.

    Now some might say I can’t worship such a God in which case they no longer would be included in the ” most Christians” category.

  20. newton,

    And I said they would say what divine infinite love means in the view of Christian scholars is different than an anthropomorphic view of love.

    No, because

    a) most Christians don’t even know what most Christian scholars think, and would be alarmed if they did; and

    b) we were discussing what most Christians themselves believe, not what they think that Christian scholars believe.

    Here’s my comment again:

    The relevant questions are

    1) what are God’s capabilities?

    and

    2) given those capabilities, does his behavior indicate that he is loving?

    For most Christians, the answer to #1 is “he’s omnisicient and omnipotent”, and the answer to #2, if they’re being honest, is “No — his behavior indicates an appalling lack of love for his creatures.”

    [emphasis added]

    Of course most Christians (and believers generally) would hesitate to acknowledge that God’s behavior is unloving. Hence the proviso “if they’re being honest.”

  21. As for what Christian scholars think about whether God is loving, and in what sense, I’d be happy to discuss any particular views you have in mind.

    Vincent brought up Edward Feser’s view that God is more like the author of a novel and less like a character within it. Like Vincent, I don’t think that gets God off the hook.

  22. keiths,

    I know this is getting off topic but as fifthmonarchyman says the thread seems to have run its course so I’ll reply here. You asked:

    1) what are God’s capabilities?

    Not even God can be all powerful and be all loving. The creator God gives up omnipotence in order to allow created beings the freedom to become co-creators through their own efforts. To have total control over another is not an act of love. A supreme autocrat does not give others any freedom, but freedom is necessary for love. Nobody can give true love by compulsion.

    But those who are given the freedom to love are obviously also free to rebel. We are given the choice between selflessness and selfishness, and the former takes much more strength of character than the latter. And it is not just humans who choose to rebel. From Revelation 12 – “And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels”.

    2) given those capabilities, does his behavior indicate that he is loving?

    Yes. Christ shows His love by making the ultimate sacrifice. And His suffering is not confined to His passion and crucifixion spoken of in the Bible, I believe it goes far beyond that.

    Ask yourself how your views on life and death would change if you believed in the reality of Christ.

    From the Bhagavad Gita, The Way of Knowledge”

    He who takes the Self to be the slayer, he who takes It to be the slain, neither of these knows. It does not slay, nor is It slain.

    This is never born, nor does It die. It is not that not having been It again comes into being. (Or according to another view: It is not that having been It again ceases to be). This is unborn, eternal, changeless, ever-Itself. It is not killed when the body is killed.

  23. keiths: The first was an incredulous response to the dumb questions you were asking, and the second was an exhortation for you to get off your ass and do your own thinking.

    So that was irony! 🙂

  24. BTW @ phoodoo,

    Returning to the topic of the thread, can I suggest that you, too, might find some answers, or at least some better questions, by taking a look at Jerry Coyne’s Why Evolution is True.

  25. CharlieM:

    Not even God can be all powerful and be all loving.

    Sure he can. The mere possession of power isn’t unloving.

    The creator God gives up omnipotence in order to allow created beings the freedom to become co-creators through their own efforts.

    He doesn’t need to give up his omnipotence. He can simply choose to allow us some freedom.

    A supreme autocrat does not give others any freedom, but freedom is necessary for love. Nobody can give true love by compulsion.

    Again, the mere possession of power does not require one to exercise it at every opportunity.

  26. phoodoo: If Christians were being honest, they would tell you you are too stupid to know what you are talking about.

    keiths, boy theologian.

  27. Alan Fox,

    Ok, but to make sure you are fully caught up, you will also need to get:

    The Secret Dreamworld of a Shopaholic
    Shopaholic Abroad
    Shopaholic and Baby
    Shopaholic and Sister
    Shopaholic Ties the Knot
    and
    Mini-shopaholic.

    Let me know when you get through them so we can discuss in depth.

  28. keiths:
    CharlieM:

    Sure he can.The mere possession of power isn’t unloving.

    How about the use of power? Can you use your power in a way that dictates everything that others do and still give them unconditional love?

    He doesn’t need to give up his omnipotence.He can simply choose to allow us some freedom.

    In order to give someone the freedom to go against your wishes can you still say that you have total power over them? Do you have children? What you are saying is that a person can choose to hand power over to another person while still retaining total power. It does not make sense.

    Again, the mere possession of power does not require one to exercise it at every opportunity.

    But unlike love where the more that you give does not depreciate the love you possess, with any definition of power you care to mention by relinquishing an amount to another that amount is taken from the one who gives.

    Are you not a physical scientist of some sort? Do you think you can charge your phone without taking the power from some external power source?

  29. Mung:
    Species of a Shopaholic?

    That’s a controversial label, that Alan hopefully will have more insight into soon.

  30. Alan Fox,

    Its part of a series. You are not going to learn by trying to take shortcuts Alan.

    Don’t worry, her books are much more popular than Coyne’s.

  31. phoodoo,

    Well, OK.

    But it has to be in a one-to-one relationship with all Coyne’s output. I think I should choose which Coyne book you read first. And I’ll read the Miss Hannity book you choose. Or you could nominate a different author and book.

  32. I came across yet another problem with the species as reproductively isolated groupings idea. Instead of relying on painstaking phenotypic study “Taxonomic vandals” are now relying just on phylogenetic trees and geographic isolation to claim the discovery of new species.

    quote:

    Another approach is based on a theory called “allopatric speciation,” or the evolution of new species through geographic isolation.

    The theory states that when animal populations are physically separated without opportunities to interbreed, they can grow genetically distinct. Over time, the populations can become separate species—meaning, in simplistic terms, that they can’t successfully reproduce with each other. This is a widely-accepted theory, but not proof in itself. Without DNA samples and a detailed examination of several individuals from each population, it’s not so much a discovery as it is a clue.

    Taxonomic vandals have been known to take full advantage of this theory to make “discoveries,” says Hinrich Kaiser, a researcher at Victor Valley College in California. To find and name new species, they will search for geographic barriers that cut through the range of an existing species, such as rivers or mountains. If the species populations look different on either side of the barrier—on one side they’re red and on the other side they’re blue, for example—vandals will automatically declare them two separate species.

    end quote:

    The result is that you end up with competing groupings and a “parallel nomenclature” in taxonomy this sort of thing is causing big problems with conservation and science.

    quote:

    Confusion created by parallel nomenclature complicates any process that depends on unambiguous species names, such as assigning conservation statuses like “Endangered” or “Threatened.” As the authors write in the Nature editorial, how a species is classified by taxonomists influences how threatened it appears, and thus how much conservation funding it’s likely to receive. As the authors of the editorial write: “Vagueness is not compatible with conservation.”

    Parallel nomenclature could also make it more difficult to acquire an export permit for research, taxonomists say. “If you are in one country that uses vandalistic names and try to export an animal, your import and export permits won’t match, which means animals get held up when you cross borders,” Thomson said.

    end quote:

    from here

    http://www.smithsonianmag.com/science-nature/the-big-ugly-problem-heart-of-taxonomy-180964629/

    Of course instead of revisiting the jacked up definition of species that is the root cause of the mess the article recommends setting up a “taxonomic commission” with dictatorial powers to declare which groupings qualify as genuine species.

    You know your definition is inadequate when you need to get a quasi-governmental organization involved to make sure a “taxonomic vandal” is not “discovering” hundreds of new species from his mother’s basement . 😉

    peace

  33. fifthmonarchyman,

    “Taxonomic vandals” is a pejorative term used by one side in the argument between fans of the “biological” and “phylogenetic” species concepts. Your idea of species is actually fairly close, as far as I can see, to the “phylogenetic” concept. So it isn’t clear to me why you’re complaining about those vandals. By your lights, they’re doing the Lord’s work.

    Of course you don’t understand the article you quote, and you don’t care. All you care about is that those dang evolutionists are messing things up. You don’t even have a species concept. You don’t have any idea what a species is, but you think God does, and that’s good enough for you. But it isn’t good enough for conservation biology unless you can get God on the phone.

  34. John Harshman: Your idea of species is actually fairly close, as far as I can see, to the “phylogenetic” concept.

    well then you don’t see it very clearly.

    If I was in charge taxonomy would be based solely on phenotypic considerations. I would remove phylogentic speculations from the equation entirely.

    My position is the opposite of what you think it is.

    go figure

    John Harshman: You don’t have any idea what a species is, but you think God does, and that’s good enough for you.

    I never implied any such thing.

    Like most folks here you seem to think you are defending “science” from horrid fundamentalists and that belief has prevented you from even understanding what is being said by the other side.

    It’s a pity you seem to be a smart guy it would have been nice to have a dialogue with you

    peace

  35. John Harshman: You don’t have any idea what a species is…

    I would look in the works of thsoe involved in crating the modern synthesis, but according to John the modern synthesis is just population genetics.

    In addition to positing ten highest kinds, Aristotle also has views about the structure of such kinds. Each kind is differentiated into species by some set of differentiae. In fact, the essence of any species, according to Aristotle, consists in its genus and the differentia that together with that genus defines the species. (It is for this reason that the highest kinds are, strictly speaking, indefinable — because there is no genus above a highest kind, one cannot define it in terms of its genus and a differentia.) Some of the species in various categories are also genera — they are, in other words differentiated into further species. But at some point, there is a lowest species that is not further differentiated.

    https://plato.stanford.edu/entries/aristotle-categories/

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