Abstract: Background: Maritime Antarctica is severely affected by climat e change and accelerating glacier retreat forming temporal gradients of soil development. Successional patterns of soil development and plant succession in the region are largely unknown, as are t

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Abstract: Background: Early life stages of macroalgae, especially from polar species, can be highly vulnerable to physical stressors, leading to important consequences for the fate of the whole population in scenarios of changing environmental variability. In the prese

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Abstract: Background: Photosynthetic characteristics and the effect of UV radiation and elevated temperature measured were studied in Chlorella sp . isolated from a snow microalgal community at King George Island, Maritime Antarctica through the chlorophyll florescence

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Abstract: Background: This is a study of current pollen rain on soil disturbed by human use on the Fildes Peninsula, King George Island, South Shetland Islands. A sector strongly affected by human activity, an area between the Eduardo Frei Montalva Chilean Air Force (F

Resumen: La presente investigación es un estudio de la lluvia de po len actual en suelo perturbado por uso antrópico en la Península Fildes, Isla Rey Jorge, Islas Shetland del Sur. Se muestreó un secto r fuertemente afectado por actividad humana en un área comprendida

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Abstract: Background: Prevailing environmental conditions can modulate the structuring role of biotic interactions. In intertidal habitats, less stressful environmental conditions and/or higher grazer densities may allow grazing effects to be stronger in tide pools tha

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Abstract: Background: Antarctic marine organisms have evolved a variety of physiological, life-history and molecular adaptations that allow them to cope with the extreme conditions in one of the coldest and most temperature- stable marine environments on Earth. The inc

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Abstract: Background: The vegetation structure and dynamics in subtropical forest fragments is influenced by the bamboo density. After the reproductive events followed by the death of the bamboos, is critical to understanding community structure and regeneration proces

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Abstract: Background: Many barrel or columnar cacti, including some in the Atacama Desert, produce their reproductive tissue at or near the terminal apices of solitary or minimally branched stems that lean toward the equator, reportedly to maximize exposure to photosyn

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Abstract: Background and Aims: The Mountains of the Western Ghats are the second most important shelter in the world for threatened species. The current paper is an attempt to study the conservation assessment of rare, endangered and threatened species (RET) of the sou

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Abstract: Background: During the last decades the frequency and global distribution of toxic cyanobacteria blooms has increased globally, which has been attributed to the eutrophication and climate change. In Chile there have been reports on blooms in aquatic ecosystem

Resumen: Antecedentes: Durante las últimas décadas la frecuencia y la distribución global de las floraciones de cianobacterias tóxicas han aumentado a nivel mundial, lo que ha sido atribuido a la eutrofización y al cambio climático global. En Chile existen reportes de

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Abstract: Background: Mosses dominate much of the vegetation in the Antarctic, but the effect of climatic change on moss growth and sexual reproduction has scarcely been studied. In Antarctica, mosses infrequently produce sporophytes; whether this is due to physiologic

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Abstract: Background: In one-piece nesting termites, which nest and forage in a single piece of wood, soldier production increases during the swarming period, i.e. when the risk of invasion of their substrate and hence of their colony by dealates in search of a nesting

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Abstract: Background: Latitudinal and altitudinal patterns of plant species richness have frequently been related to different climate variables such as precipitation, temperature and evapotranspiration. However, studies assessing this relationship have mostly compared

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