Dispersión - depositación del polen actual en Tierra del Fuego, Argentina

Mandri, Matilde E. Trivi de; Burry, Lídia Susana; D’Antoni, Héctor L.

doi:10.22201/ib.20078706e.2006.001.322

Cited by 10 publications

(10 citation statements)

References 8 publications

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“…Chenopodiaceae-Amaranthaceae plants are commonly characterized as 'camp followers' because they grow in a variety of anthropogenically disturbed soil settings that frequently surround residential sites Kuznar, 1993;Smith, 1992; Figure 7). The denomination could be extended to Brassicaceae, another annual plant family whose pollen is usually associated with modern and historic evidence of heavy human disturbance along with Polygonaceae, Pinus sp., Eucalyptus sp., Carduus sp., and so on (Borromei, 1995;Chepstow-Lusty, 2010;Grill, 1997Grill, , 2003Trivi de Mandri et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Anthropogenic pollen, foraging, and crops during Sierras of Córdoba Late Prehispanic Period (Argentina)

et al. 2017

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The palynological study carried out in seven archaeological sites from Sierras of Córdoba Late Prehispanic Period (ca. 1500-360 yr BP) is presented in this article. The fossil pollen was used to assess the late prehispanic subsistence and mobility patterns based on their impact on local vegetation. Analogues obtained from modern vegetation and human-induced cultivation settings were used as a guideline for interpreting the ancient pollinic spectra. Results showed that anthropogenic pollen dominated by chenopod-amaranth plants occurred during a period of increased moisture and significant cultural change, where on-site farming and increasing occupation redundancy were identified. Thus, human disturbance and cultivation are thought to be the probable cause for elevated Chenopodiaceae-Amaranthaceae percentage in fossil assemblages. Consequently, the late prehispanic societies were likely modifying vegetation more extensively than had been previously assumed and the composition of 'pristine' landscape was not only altered by climate change or after the Europeans' arrival. The ancient clearing of the forest for farming, housing, and/or other activities played a dynamic role in land cover conformation. So, the archaeological study of mixed foraging and cultivation economies needs to encompass human-plant-landscape interaction, leaving behind the concept of small-scale societies as passive foragers exploiting the ecosystem.

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Section: Discussionmentioning

confidence: 99%

Anthropogenic pollen, foraging, and crops during Sierras of Córdoba Late Prehispanic Period (Argentina)

et al. 2017

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“…Por otra parte, el polen extra-regional está representado por Nothofagus, taxón ampliamente distribuido en los bosques andinos patagónicos del suroeste de la Argentina (Faegri & Iversen, 1989;Latorre et al, 2001;Trivi de Mandri et al, 2006), el cual aparece prácticamente en todos los muestreadores aerobiológicos de Argentina. Su transporte está asociado con el desplazamiento hacia el este por la circulación de vientos del oeste y la presencia de un sistema anticiclónico que traería el polen de Nothofagus hacia el norte como por ejemplo, fue registrado en las ciudades de Mar del Plata (Argentina) y Montevideo (Uruguay) (Tejera & Beri, 2005;Gassmann & Pérez, 2006).…”

Section: Polen Exóticounclassified

Análisis aeropalinológico en tres áreas de vegetación dentro del Parque Nacional El Palmar (Colón, Entre Ríos) y su relación con la vegetación local y regional.

Muñoz¹,

Pasquo²,

Biganzoli³

et al. 2017

Bol. Soc. Argent. Bot.

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La diversidad de polen atmosférico colectado mensualmente durante dos años (2011-2013) en trampas Tauber en tres sitios del Parque Nacional El Palmar (provincia de Entre Ríos) es usada para caracterizar la vegetación. El sitio 1 es un área mixta compuesta por pastizales, palmares y humedales. El sitio 2 es un área de pastizales y el sitio 3 un palmar denso. Se identificaron 71 tipos polínicos comprendidos en 43 familias procedentes de fuentes locales, regionales y extraregionales. Dieciséis tipos resultaron abundantes con más de 1% del Annual Pollen Influx en al menos dos muestras. Diferentes factores relacionados con los cambios cuali-cuatitativos de los taxa en el intervalo de estudio son considerados. Por lo tanto, la composición florística de cada sitio en comparación con sus asociaciones polínicas reveló que el sitio 2 se caracteriza por una alta abundancia de Asteraeceae-Asteroideae, con un aumento en el valor de Vernonia (Asteraceae Cichoroidea) y Lamiaceae durante el segundo año. Por otro lado, una composición palinológica similar (Asteraeceae-Asteroideae, Myrtaceae, Blepharocalyx salicifolius, Poaceae) se encuentra en los sitios 1 y 3, con tasas de variación entre ambos años. El sitio 3 se diferencia de los otros dos por el registro de Butia yatay en baja frecuencia en porcentajes similares en ambos años, en tanto que Adiantopsis chlorophylla y Microgramma mortoniana aumentaron durante el segundo año.

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“…For the analysis, all taxa with percentages of >1% of the sum of terrestrial pollen were included. The fossil pollen spectra were compared with modern pollen datasets from surface soil samples (Heusser, 1989a;Trivi de Mandri et al, 2006;Musotto et al, 2012) and with present-day plant formations from Tierra del Fuego (Pisano, 1977;Heusser, 2003).…”

Section: Pollen/spores Analysismentioning

confidence: 99%

Postglacial Vegetation and Climate Changes Inferred From a Peat Pollen Record in the Río Pipo Valley, Southern Tierra Del Fuego

Borromei¹,

Musotto²,

Coronato³

et al. 2016

PEAPA

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The pollen analysis from Cañadón del Toro peat bog (54° 49' 36" S; 68° 27' 36" W), located in an interior valley of the Fuegian Andes, provides information about vegetation and climate changes during the last 13,500 years. The results indicate the postglacial development of steppe-like vegetation under drier and colder conditions than today, followed by the expansion of Nothofagus into the valley after 10,350 cal. yr BP. At this time, the predominance of a forest-steppe ecotone suggests warm conditions and an increase in moisture availability. By about 6,700 cal. yr BP, the closed-canopy Nothofagus forest spread under cold and wet conditions. The mire environment also reflects the increasing trend of effective moisture changing from an initial minerotrophic Cyperaceae fen to an ombrotrophic Sphagnum bog development.

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Dispersión - depositación del polen actual en Tierra del Fuego, Argentina

Cited by 10 publications

References 8 publications

Anthropogenic pollen, foraging, and crops during Sierras of Córdoba Late Prehispanic Period (Argentina)

Anthropogenic pollen, foraging, and crops during Sierras of Córdoba Late Prehispanic Period (Argentina)

Análisis aeropalinológico en tres áreas de vegetación dentro del Parque Nacional El Palmar (Colón, Entre Ríos) y su relación con la vegetación local y regional.

Postglacial Vegetation and Climate Changes Inferred From a Peat Pollen Record in the Río Pipo Valley, Southern Tierra Del Fuego

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