Re: Parthogenesis in birds.

troll wrote:
I have grown more and more skeptical that anything
useful can ever be derived from browsing through
usenet.

Overall, it is simply an endless stream of persons
disconnected from reality posting false information,
countered with an endless stream of useless and
uninformative insults, followed by an endless number
of false information posted ad nauseum.

The search engines are also useless. They
will always generate an infinite number of hits
to newsy factoids, that usually don't actually
say anything, and don't bother to care whether
the information that they are presenting is true
either. They will also show a large number of
hits to advertisements.

Have you considered contributing instead of throwing stones?

And for heaven's sake, can you not google for peer-reviewed articles outside of the Usenet?

OTOH, many people are merely content to whine instead of making a difference.

All I did was enter "parthenogenesis, birds" in google and I got this:

http://www.google.com/search?hl=en&client=safari&rls=en-us&q=parthenogenesis+birds&aq=f&oq=&aqi=


Maybe if I only use search engines that only
link to .edu domains.

Perhaps.

The question is, how common is parthogenesis
in birds? Reasonably, if a bird lays an egg, it
has dedicated a high level of resources to egg
production, relatively more than that of a mammal,
since all of the food for the growing chick is in the
egg.

If a cell inside the egg is not fertilized properly,
those resources go to waste if nothing develops
in the egg. This would seem to help select for
a meiosis bypass or alternate recombination to
prevent the wastage of resources. I would imagine
that the bird simply eats the egg if it does not grow
a chick.

Parthogenesis does happen in some reptiles. What
about different bird species? Is it very common in
some of them or is it generally rare?

I know that it is rather unlikely that I could get any
useful or informative information from this post.

I thought I might try, however.


.

Relevant Pages

  • Re: Parthogenesis in birds.
    ... it is simply an endless stream of persons ... Reasonably, if a bird lays an egg, it ... those resources go to waste if nothing develops ...
    (talk.origins)
  • Re: Parthogenesis in birds.
    ... it is simply an endless stream of persons ... The question is, how common is parthogenesis ... has dedicated a high level of resources to egg ... that the bird simply eats the egg if it does not grow ...
    (talk.origins)
  • Parthogenesis in birds.
    ... it is simply an endless stream of persons ... Reasonably, if a bird lays an egg, it ... those resources go to waste if nothing develops ...
    (talk.origins)
  • Re: Parthogenesis in birds.
    ... has dedicated a high level of resources to egg ... that the bird simply eats the egg if it does not grow ... Parthenogenesis is fairly common is some strains of turkeys. ... Getting live parthenogenetic chicks is rare. ...
    (talk.origins)
  • David Hand - Animaland
    ... I was most impressed by 'The Cuckoo'. ... egg to make room). ... The egg hatches out a huge voracious oaf of a bird ... who crowds out its baby sparrow nestmate. ...
    (rec.arts.animation)
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