The Aconcagua River as another barrier to Liolaemus monticola (Sauria: Iguanidae) chromosomal races of central Chile

ABSTRACT Univariate and multivariate statistical analyses of 28 meristic characters recorded for 19 samples of the lizard Liolaemus monticola monticola were used to compare geographical variation in morphology with chromosomal races north and south of the Maipo River, and north and south of the Acon...

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Autores principales:	LAMBOROT,MADELEINE, EATON,LAFAYETTE, CARRASCO,BASILIO A
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2003
Materias:	chromosomal races morphological variation geographic barrier Aconcagua River
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2003000100003
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spelling	oai:scielo:S0716-078X20030001000032003-05-26The Aconcagua River as another barrier to Liolaemus monticola (Sauria: Iguanidae) chromosomal races of central ChileLAMBOROT,MADELEINEEATON,LAFAYETTECARRASCO,BASILIO A chromosomal races morphological variation geographic barrier Aconcagua River ABSTRACT Univariate and multivariate statistical analyses of 28 meristic characters recorded for 19 samples of the lizard Liolaemus monticola monticola were used to compare geographical variation in morphology with chromosomal races north and south of the Maipo River, and north and south of the Aconcagua River in central Chile, plus some affluent. This extends a previous morphological study that confirmed that the Maipo River is a biogeographical barrier that separates chromosomal races "Southern, 2n=34" and "Northern, 2n=38-40", and reports for the first time the importance of the Aconcagua River as another biogeographical barrier between the chromosomal races "Northern, 2n=38-40" and the "Multiple Fission, 2n=42-44". The phenetic variation among samples is sufficient to differentiate the three chromosomal races, and also distinguishes populations within the chromosomal races such as the ones separated by the Colorado River, an affluent of the Aconcagua River. A possible historical sequence of events that accounts for the pattern of morphological differentiation is advanced.info:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.76 n.1 20032003-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2003000100003en10.4067/S0716-078X2003000100003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	chromosomal races morphological variation geographic barrier Aconcagua River
spellingShingle	chromosomal races morphological variation geographic barrier Aconcagua River LAMBOROT,MADELEINE EATON,LAFAYETTE CARRASCO,BASILIO A The Aconcagua River as another barrier to Liolaemus monticola (Sauria: Iguanidae) chromosomal races of central Chile
description	ABSTRACT Univariate and multivariate statistical analyses of 28 meristic characters recorded for 19 samples of the lizard Liolaemus monticola monticola were used to compare geographical variation in morphology with chromosomal races north and south of the Maipo River, and north and south of the Aconcagua River in central Chile, plus some affluent. This extends a previous morphological study that confirmed that the Maipo River is a biogeographical barrier that separates chromosomal races "Southern, 2n=34" and "Northern, 2n=38-40", and reports for the first time the importance of the Aconcagua River as another biogeographical barrier between the chromosomal races "Northern, 2n=38-40" and the "Multiple Fission, 2n=42-44". The phenetic variation among samples is sufficient to differentiate the three chromosomal races, and also distinguishes populations within the chromosomal races such as the ones separated by the Colorado River, an affluent of the Aconcagua River. A possible historical sequence of events that accounts for the pattern of morphological differentiation is advanced.
author	LAMBOROT,MADELEINE EATON,LAFAYETTE CARRASCO,BASILIO A
author_facet	LAMBOROT,MADELEINE EATON,LAFAYETTE CARRASCO,BASILIO A
author_sort	LAMBOROT,MADELEINE
title	The Aconcagua River as another barrier to Liolaemus monticola (Sauria: Iguanidae) chromosomal races of central Chile
title_short	The Aconcagua River as another barrier to Liolaemus monticola (Sauria: Iguanidae) chromosomal races of central Chile
title_full	The Aconcagua River as another barrier to Liolaemus monticola (Sauria: Iguanidae) chromosomal races of central Chile
title_fullStr	The Aconcagua River as another barrier to Liolaemus monticola (Sauria: Iguanidae) chromosomal races of central Chile
title_full_unstemmed	The Aconcagua River as another barrier to Liolaemus monticola (Sauria: Iguanidae) chromosomal races of central Chile
title_sort	aconcagua river as another barrier to liolaemus monticola (sauria: iguanidae) chromosomal races of central chile
publisher	Sociedad de Biología de Chile
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2003000100003
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The Aconcagua River as another barrier to Liolaemus monticola (Sauria: Iguanidae) chromosomal races of central Chile

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