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No. de sistema: 000005112

LDR _ _ 00000nab^^22^^^^^za^4500
008 _ _ 120622m20129999xx^^r^pf^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mx-yu
044 _ _ a| xx
100 1 _ a| Aragón Moreno, Alejandro Antonio
245 1 9 a| A ~ 3800-yr, high-resolution record of vegetation and climate change on the north coast of the Yucatan Peninsula
520 1 _ a| A 1.9-m mangrove sediment core from the Ría Lagartos Biosphere Reserve was used to study climate and vegetation change over the past ~ 3800 years on the northern Yucatan Peninsula. Fossil pollen and charcoal analysis were conducted to make paleoecologic inferences. Changes in vegetation composition were associated with shifts in rainfall amount, documented previously at the regional scale. Wet climate prevailed until ~ 3500 cal yr BP, after which changing plant species composition indicates a decrease in precipitation. Conditions, however, remained favourable for development of tropical forest vegetation until ~ 1600 cal yr BP, when species composition indicates drier climate. The vegetation composition shows the driest conditions of the last 3800 at 960 cal yr BP (ca. 1000 AD), coincident with the demise of Classic Maya civilization. Subsequent conditions during the Postclassic show a trend toward wetter conditions, with increases of tropical forest coverage about 770 cal yr BP, corresponding to the Medieval Warm Period. Paleoclimate inference from the terminal Postclassic to present is confounded by intensive human land use, especially after the arrival of the Spanish in the 15th century AD. Our results from this coastal site in northern Yucatan correspond closely with the findings of other studies on late Holocene paleoenvironmental changes in the Caribbean region.
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Vegetación
650 _ 4 a| Palinología
650 _ 4 a| Paleoclimatología
651 _ 4 a| Reserva de la Biosfera Ría Lagartos (Yucatán, México)
700 1 _ a| Islebe, Gerald A.
c| Doctor
e| coaut.
700 1 _ a| Torrescano Valle, Nuria
e| coaut.
773 0 _
t| Review of Palaeobotany and Palynology
g| Vol. 178 (June 2012), p. 35–42
x| 0034-6667
901 _ _ a| Artículo con arbitraje
902 _ _ a| GOG / MM
904 _ _ a| Junio 2012
905 _ _ a| Artecosur
905 _ _ a| Artfrosur
905 _ _ a| Biblioelectrónica
LNG eng
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A ~ 3800-yr, high-resolution record of vegetation and climate change on the north coast of the Yucatan Peninsula
Aragón Moreno, Alejandro Antonio (autor)
Islebe, Gerald A. (autor)
Torrescano Valle, Nuria (autor)
Contenido en: Review of Palaeobotany and Palynology. Vol. 178 (June 2012), p. 35–42. ISSN: 0034-6667
No. de sistema: 5112
Tipo: - Artículo con arbitraje
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Inglés

"A 1.9-m mangrove sediment core from the Ría Lagartos Biosphere Reserve was used to study climate and vegetation change over the past ~ 3800 years on the northern Yucatan Peninsula. Fossil pollen and charcoal analysis were conducted to make paleoecologic inferences. Changes in vegetation composition were associated with shifts in rainfall amount, documented previously at the regional scale. Wet climate prevailed until ~ 3500 cal yr BP, after which changing plant species composition indicates a decrease in precipitation. Conditions, however, remained favourable for development of tropical forest vegetation until ~ 1600 cal yr BP, when species composition indicates drier climate. The vegetation composition shows the driest conditions of the last 3800 at 960 cal yr BP (ca. 1000 AD), coincident with the demise of Classic Maya civilization. Subsequent conditions during the Postclassic show a trend toward wetter conditions, with increases of tropical forest coverage about 770 cal yr BP, corresponding to the Medieval Warm Period. Paleoclimate inference from the terminal Postclassic to present is confounded by intensive human land use, especially after the arrival of the Spanish in the 15th century AD. Our results from this coastal site in northern Yucatan correspond closely with the findings of other studies on late Holocene paleoenvironmental changes in the Caribbean region."


  • Adobe Acrobat profesional 6.0 o superior