2018
DOI: 10.34073/37
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Impacto Antropogénico sobre el Medioambiente

Abstract: La línea de tiempo de la historia evolutiva del planeta, muestra un lapso de 4.600 millones de años, el agua tiene 4.404 millones de años y los registros de seres vivos 4.280 millones de años. Sólo una fracción ínfima en esa línea de tiempo, le corresponde a la historia del Homo sapiens. La evolución de los homínidos (grupo "homininae") tiene unos 12 a 14 millones de años de historia, la familia Hominidae unos siete (7) millones de años de historia y hace sólo 2 ó 2,5 millones de años, aparecen en el registro … Show more

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“…Increasing globalization and economic development (Menchaca Dávila & Alvarado Michi, 2011 ) have eroded geographical barriers, with significant and even transformative impacts on natural ecosystems (Espinosa, 2018 ). Antarctica is one of the few pristine environments remaining on the planet, due to its physical isolation and extreme climatic conditions (low temperatures, lack freshwater, strong winds, short growing season and limited ice‐free areas), which act as barriers to the natural colonization and establishment of organisms (Convey et al., 2014 ; Duffy et al., 2017 ; Hughes & Convey, 2010 ).…”
Section: Introductionmentioning
confidence: 99%
“…Increasing globalization and economic development (Menchaca Dávila & Alvarado Michi, 2011 ) have eroded geographical barriers, with significant and even transformative impacts on natural ecosystems (Espinosa, 2018 ). Antarctica is one of the few pristine environments remaining on the planet, due to its physical isolation and extreme climatic conditions (low temperatures, lack freshwater, strong winds, short growing season and limited ice‐free areas), which act as barriers to the natural colonization and establishment of organisms (Convey et al., 2014 ; Duffy et al., 2017 ; Hughes & Convey, 2010 ).…”
Section: Introductionmentioning
confidence: 99%