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No. de sistema: 000004325

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008 _ _ 150120m20159999xx^^r^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mx-cp
044 _ _ a| xx
100 1 _ a| Joo Chang, Juan Carlos
245 1 0 a| Mangrove history during middle- and late-Holocene in Pacific south-eastern Mexico
506 _ _ a| Acceso electrónico sólo para usuarios de ECOSUR
520 1 _ a| A paleoecological analysis of a 6-m-long sedimentary sequence from the La Encrucijada Biosphere Reserve (RBLE) from southern Pacific Mexico provides detailed information about past vegetation changes between ~6200 and 700 cal. yr BP. Highest percentages of mangrove pollen in pollen zone I (from ~6200 to 5400 cal. yr BP) suggest moister and warmer conditions than at present related with global rates of sea-level rise and northward position of the Intertropical Convergence Zone (ITCZ), suppressing El Niño-Southern Oscillation (ENSO) events. Drier conditions and decreasing rates of sea-level rise at ~5400–4500 cal. yr BP are evidenced in pollen zone II by the lowest percentages of mangrove pollen and highest presence of disturbance pollen. Recovery of mangroves and tropical forests occurred from ~4500 cal. yr BP, suggesting moister conditions. Agricultural activities are recorded around ~4900, 4700 and 2400 cal. yr BP, although human occupation was scarce in the mangrove area. ENSO variability correlates to mangrove pollen variation between 3600 and 2400 cal. yr BP. A protracted drought is observed at ~1300–700 cal. yr BP characterized by proportions in montane forest pollen and may be related with southern oscillation of the ITCZ and the Classical Mayan Demise.
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Manglares
650 _ 4 a| Cambio climático
650 _ 4 a| Cuaternario
650 _ 4 a| El Niño oscilación del Sur
651 _ 4 a| Reserva de la Biosfera La Encrucijada (Chiapas, México)
700 1 _ a| Islebe, Gerald A.
c| Doctor
e| coaut.
700 1 _ a| Torrescano Valle, Nuria
e| coaut.
773 0 _
t| The Holocene
g| Vol. 25, no. 4 (April 2015), p. 651-662
x| 0959-6836
856 4 1 u| http://hol.sagepub.com/content/25/4/651.full.pdf+html
z| Subscripción
901 _ _ a| Artículo con arbitraje
902 _ _ a| GOG / MM
904 _ _ a| Enero 2015
905 _ _ a| Artecosur
905 _ _ a| Artfrosur
905 _ _ a| Biblioelectrónica
905 _ _ a| Servibosques
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Mangrove history during middle- and late-Holocene in Pacific south-eastern Mexico
Joo Chang, Juan Carlos (autor)
Islebe, Gerald A. (autor)
Torrescano Valle, Nuria (autor)
Nota: Acceso electrónico sólo para usuarios de ECOSUR
Contenido en: The Holocene. Vol. 25, no. 4 (April 2015), p. 651-662. ISSN: 0959-6836
No. de sistema: 4325
Tipo: - Artículo con arbitraje
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Inglés

"A paleoecological analysis of a 6-m-long sedimentary sequence from the La Encrucijada Biosphere Reserve (RBLE) from southern Pacific Mexico provides detailed information about past vegetation changes between ~6200 and 700 cal. yr BP. Highest percentages of mangrove pollen in pollen zone I (from ~6200 to 5400 cal. yr BP) suggest moister and warmer conditions than at present related with global rates of sea-level rise and northward position of the Intertropical Convergence Zone (ITCZ), suppressing El Niño-Southern Oscillation (ENSO) events. Drier conditions and decreasing rates of sea-level rise at ~5400–4500 cal. yr BP are evidenced in pollen zone II by the lowest percentages of mangrove pollen and highest presence of disturbance pollen. Recovery of mangroves and tropical forests occurred from ~4500 cal. yr BP, suggesting moister conditions. Agricultural activities are recorded around ~4900, 4700 and 2400 cal. yr BP, although human occupation was scarce in the mangrove area. ENSO variability correlates to mangrove pollen variation between 3600 and 2400 cal. yr BP. A protracted drought is observed at ~1300–700 cal. yr BP characterized by proportions in montane forest pollen and may be related with southern oscillation of the ITCZ and the Classical Mayan Demise."


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