Browsing by Author "Etchegaray, Julia"
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Item Análisis de las relaciones entre mesofauna antártica y algunos factores climáticos(1977) Etchegaray, Julia; Sáiz, Francisco; Hajek, ErnstThe paper investigates relative abundance, distribution and specific diversity of edaphic mesofauna in relation with soil temperature. Research was carried out on Robert Island, Copper Mine Peninsula (South Shetlands), on an altitudinal transect of 150 m from the shore inland. Along the transect three macroclimatic stations were located and 8 biological sampling stations. Samples were taken every 5 days in three layers in moss and soil and the fauna was separated with· Berlesse funnels. Density of mesofauna presents a clear stratification with higher percentages at the superficial moss layer. Collembola (98.8%) is the dominant group of the mesofauna whereas Acari represented only 1.2 percent. The two groups exhibit different patterns of distribution along the transect. Collembola was predominantly found in the lower, warmer and wetter stations, while Acari was found in drier, higher and colder areas.