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Marc Verhaegen
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 Posted: Sun Oct 05, 2008 1:07 pm Post subject: A.robustus woodland-adapted? |
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J Hum Evol. 2008 Sep 26.
Indications of habitat association of Australopithecus robustus in the
Bloubank Valley, South Africa.
de Ruiter DJ, Sponheimer M, Lee-Thorp JA.
Department of Anthropology, Texas A&M University, College Station,
TX 77843-4352, USA.
Establishing the habitat preferences of early hominin taxa is a
necessary, though difficult, requirement for understanding the
interaction between environmental change and hominin evolution. The
environments typically associated with Australopithecus robustus have
been reconstructed as predominantly open grasslands situated within a
habitat mosaic that included a more wooded component with a nearby
perennial water source. Most studies have concluded that the open
grassland component represents the habitat preference of the hominins.
In this study we investigate indicators of habitat association of A.
robustus that are preserved in the animal paleocommunities represented
in a series of fossil cave infills in the Bloubank Valley of South
Africa, including Swartkrans, Sterkfontein, Kromdraai, and Coopers.
Testing for conditions of isotaphonomy reveals a potential bias
relating to depositional matrix and perhaps accumulating agent, though
such a bias has not unduly influenced the taxonomic composition the
assemblages. Correspondence analysis of census data from modern
African nature reserves demonstrates that carnivore predation patterns
are indicative of animal communities, which in turn are representative
of habitats. As a result, modern census data are used to document
patterns of habitat preference of large herbivores, thus allowing
assignment of fossil taxa to a series of broadly defined habitat
categories. Correspondence analysis of fossil assemblages reveals that
the abundance profile of A. robustus is most similar to that of
woodland-adapted taxa. In addition, fluctuations in the relative
abundance of taxa assigned to the broad habitat categories reveal a
significant negative correlation between A. robustus and open
grassland-adapted taxa, indicating that the more grassland-adapted
taxa there are in a given assemblage, the fewer hominins there tend to
be. Thus, it appears that the open grasslands that comprise the
majority of the paleoenvironments associated with A. robustus do not
necessarily indicate the habitat preference of the hominins. Rather,
it would appear that in addition to being dietary generalists, A.
robustus were also likely to have been habitat generalists. |
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Paul Crowley
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| Posted: Sun Oct 05, 2008 10:17 pm Post subject: Re: A.robustus woodland-adapted? |
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Marc Verhaegen wrote:
[quote]J Hum Evol. 2008 Sep 26.
Indications of habitat association of Australopithecus robustus in the
Bloubank Valley, South Africa.
de Ruiter DJ, Sponheimer M, Lee-Thorp JA.
Department of Anthropology, Texas A&M University, College Station,
TX 77843-4352, USA.
Establishing the habitat preferences of early hominin taxa
[/quote]
Note how quickly they express their unthinking
prejudices. No one would use such words about
any other taxon. A species, or a highly-limited
taxon, does not have 'habitat preferences'.
It has a habitat.
[quote]necessary, though difficult, requirement for understanding the
interaction between environmental change and hominin evolution.
[/quote]
Again -- who would use such words about any other
natural taxon? This time, of course, it>s much worse.
They are clearly into some fantasy PA mode.
Knowing the habitat is basic to an understanding of
any species. "Evironmental change" (whatever that
phrase might mean) has NO effect at all on the
evolution of other species. Their populations might
go up or down, depending on how the climate allowed
their habitat to expand or contract -- but that is it.
[quote]In addition, fluctuations in the relative
abundance of taxa assigned to the broad habitat categories reveal a
significant negative correlation between A. robustus and open
grassland-adapted taxa, indicating that the more grassland-adapted
taxa there are in a given assemblage, the fewer hominins there tend to
be.
[/quote]
The notion that these individuals might not have lived
where died has not occurred to these guys'.
[quote]Thus, it appears that the open grasslands that comprise the
majority of the paleoenvironments associated with A. robustus do not
necessarily indicate the habitat preference of the hominins. Rather,
it would appear that in addition to being dietary generalists, A.
robustus were also likely to have been habitat generalists.
[/quote]
This kind of cop-out ("hominids were generalists") is
routine in PA -- if extraodinary when viewed from any
other angle. It derives from an almost total ignorance
of nature (what other species are 'generalists'?) and
is based on a blindness to the extreme pecularities of
hominid morphology. Further, none in the profession
seem to have considered what it might imply: If early
hominids were that capable, and could live almost
anywhere, how come -- once they had slightly larger
brains, etc. -- they did not take rapidly over the planet?
Paul. |
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mclark
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| Posted: Mon Oct 06, 2008 2:24 am Post subject: Re: A.robustus woodland-adapted? |
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On Oct 5, 12:17 pm, Paul Crowley <crowl...@gofree.indigo.ie> wrote:
[quote]Marc Verhaegen wrote:
J Hum Evol. 2008 Sep 26.
Indications of habitat association of Australopithecus robustus in the
Bloubank Valley, South Africa.
de Ruiter DJ, Sponheimer M, Lee-Thorp JA.
Department of Anthropology, Texas A&M University, College Station,
TX 77843-4352, USA.
Establishing the habitat preferences of early hominin taxa
Note how quickly they express their unthinking
prejudices. No one would use such words about
any other taxon. A species, or a highly-limited
taxon, does not have 'habitat preferences'.
It has a habitat.
[/quote]
http://tinyurl.com/3jfvqr
That>s how long it takes to make an
idiot out of Paul Crowley.
[more of the same]
> Paul. |
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RichTravsky
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| Posted: Fri Oct 17, 2008 9:08 pm Post subject: Re: A.robustus woodland-adapted? |
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Paul Crowley wrote:
[quote]
Marc Verhaegen wrote:
J Hum Evol. 2008 Sep 26.
Indications of habitat association of Australopithecus robustus in the
Bloubank Valley, South Africa.
de Ruiter DJ, Sponheimer M, Lee-Thorp JA.
Department of Anthropology, Texas A&M University, College Station,
TX 77843-4352, USA.
Establishing the habitat preferences of early hominin taxa
Note how quickly they express their unthinking
prejudices. No one would use such words about
any other taxon. A species, or a highly-limited
taxon, does not have 'habitat preferences'.
It has a habitat.
[/quote]
Species *do* have preferences. You can see this in climate change where habitats
change
and species move. |
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Paul Crowley
Guest
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| Posted: Sat Oct 18, 2008 10:52 pm Post subject: Re: A.robustus woodland-adapted? |
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RichTravsky wrote:
[quote]J Hum Evol. 2008 Sep 26.
Indications of habitat association of Australopithecus robustus in the
Bloubank Valley, South Africa.
de Ruiter DJ, Sponheimer M, Lee-Thorp JA.
Department of Anthropology, Texas A&M University, College Station,
TX 77843-4352, USA.
Establishing the habitat preferences of early hominin taxa
Note how quickly they express their unthinking
prejudices. No one would use such words about
any other taxon. A species, or a highly-limited
taxon, does not have 'habitat preferences'.
It has a habitat.
Species *do* have preferences. You can see this in climate change where habitats change and species move.
[/quote]
Idiot.
(A) The climate changes;
(B) habitats move;
(C) species move WITH the habitats.
Paul. |
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Makouli
Guest
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| Posted: Sat Oct 18, 2008 11:39 pm Post subject: Re: A.robustus woodland-adapted? |
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"Paul Crowley" <crowleyx@gofree.indigo.ie> wrote in message
news:gdd7v3$pb2$1@aioe.org...
[quote]RichTravsky wrote:
J Hum Evol. 2008 Sep 26.
Indications of habitat association of Australopithecus robustus in the
Bloubank Valley, South Africa.
de Ruiter DJ, Sponheimer M, Lee-Thorp JA.
Department of Anthropology, Texas A&M University, College Station,
TX 77843-4352, USA.
Establishing the habitat preferences of early hominin taxa
Note how quickly they express their unthinking
prejudices. No one would use such words about
any other taxon. A species, or a highly-limited
taxon, does not have 'habitat preferences'.
It has a habitat.
Species *do* have preferences. You can see this in climate change where
habitats change and species move.
Idiot.
(A) The climate changes;
(B) habitats move;
(C) species move WITH the habitats.
Paul.
[/quote]
Sure, and why do you keep dodging this?
'habitat preferences'
http://tinyurl.com/3jfvqr
______________________________
"Any attempt to get you to be honest
is self-defeating..." Pauly - 09/28/2008 |
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RichTravsky
Guest
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| Posted: Fri Oct 31, 2008 7:19 am Post subject: Re: A.robustus woodland-adapted? |
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Paul Crowley wrote:
[quote]RichTravsky wrote:
J Hum Evol. 2008 Sep 26.
Indications of habitat association of Australopithecus robustus in the
Bloubank Valley, South Africa.
de Ruiter DJ, Sponheimer M, Lee-Thorp JA.
Department of Anthropology, Texas A&M University, College Station,
TX 77843-4352, USA.
Establishing the habitat preferences of early hominin taxa
Note how quickly they express their unthinking
prejudices. No one would use such words about
any other taxon. A species, or a highly-limited
taxon, does not have 'habitat preferences'.
It has a habitat.
Species *do* have preferences. You can see this in climate change where habitats change and species move.
Idiot.
(A) The climate changes;
(B) habitats move;
(C) species move WITH the habitats.
[/quote]
Idiot. If the habitat moves and the species goes with it, THAT>S a preference.
If it wasn>t, they>d stay where they were. |
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mclark
Guest
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| Posted: Fri Oct 31, 2008 10:27 am Post subject: Re: A.robustus woodland-adapted? |
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On Oct 31, 12:04 am, RichTravsky <traRvE...@hotmMOVEail.com> wrote:
[quote]Paul Crowley wrote:
RichTravsky wrote:
J Hum Evol. 2008 Sep 26.
Indications of habitat association of Australopithecus robustus in the
Bloubank Valley, South Africa.
de Ruiter DJ, Sponheimer M, Lee-Thorp JA.
Department of Anthropology, Texas A&M University, College Station,
TX 77843-4352, USA.
Establishing the habitat preferences of early hominin taxa
Note how quickly they express their unthinking
prejudices. No one would use such words about
any other taxon. A species, or a highly-limited
taxon, does not have 'habitat preferences'.
It has a habitat.
Species *do* have preferences. You can see this in climate change where habitats change and species move.
Idiot.
(A) The climate changes;
(B) habitats move;
(C) species move WITH the habitats.
Idiot. If the habitat moves and the species goes with it, THAT>S a preference.
If it wasn>t, they>d stay where they were.- Hide quoted text -
- Show quoted text -
[/quote]
Well Pauly? Got your thinkin' cap on today?
http://tinyurl.com/3jfvqr |
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