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  1. ColonelBlimp

    Sparrowhawks responsible for House Sparrow decline says scientist

    Probably the first reply I've got off you, and without any citations to boot. I feel so honoured.
  2. ColonelBlimp

    Sparrowhawks responsible for House Sparrow decline says scientist

    Agenda?
  3. ColonelBlimp

    Sparrowhawks responsible for House Sparrow decline says scientist

    Indeed they might- but without evidence for it, it remains pure speculation.
  4. ColonelBlimp

    Sparrowhawks responsible for House Sparrow decline says scientist

    So the main strength of your argument is that considering other variables is not as easy as blindly pinning all your hopes on one variable? Now that's what I call pseudoscientific!
  5. ColonelBlimp

    Sparrowhawks responsible for House Sparrow decline says scientist

    The paper refers to behaivoural modification due to reduced or removed predator pressure in island ecologies. It cannot be used as a broad cipher to exemplify sparrow naivete without clarification on whether the overall predator pressure has in fact diminished, or, whether decline in pressure...
  6. ColonelBlimp

    Sparrowhawks responsible for House Sparrow decline says scientist

    I think they're cute and fluffy... Not at all, if the 'unmeasurable variable x' could be a real causative influence! What is unscientific is not providing the required mechanics to promote correlation into causation. A little bit of conjecture about blitzkrieg theory is insufficient!
  7. ColonelBlimp

    Sparrowhawks responsible for House Sparrow decline says scientist

    Also, isn't it a little dangerous to suggest that sparrow declines can be solely attributed to sparrowhawk increases? The analysis seems to center pretty squarely on matching sparrow/sparrowhawk population changes and then *hey presto* assigning causation when they match? Even if sparrowhawk...
  8. ColonelBlimp

    Sparrowhawks responsible for House Sparrow decline says scientist

    Where's the evidence for this? Would sparrows become so 'ecologically naive' in such a short space of time?
  9. ColonelBlimp

    Sparrowhawks responsible for House Sparrow decline says scientist

    I have access to this paper: would PMing people the PDF come under fair use?
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