Prolonged clonal growth: Escape route or route to extinction?

Article Abstract:

Clonal reproduction can be considered as an alternative life cycle loop that allows persistence of a species in the absence of the ability to complete the normal life cycle. It is argued that prolonged and nearly exclusive clonal growth through environmental suppression of sexual reproduction can ultimately lead to local sexual extinction and to monoclonal populations of a species, and that this may imply significant consequences for population viability.

Plants, Plant reproduction, Reproduction, Asexual, Asexual reproduction, Sexual reproduction

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Vegetation recovery on closed paths in temperate deciduous forests

Article Abstract:

The study aims to evaluate vegetation recovery on footpaths in woodland that have been closed for access for 6 years. A vegetation survey was conducted in four mesophile forests, in transects perpendicular to the trail.

Environmental aspects, Plant communities, Deciduous forests

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Simultaneous radioassays of bacterial production and mercury methylation in the periphyton of a tropical and a temperate wetland

Article Abstract:

A study uses radioassays to examine the impact of mercury methylation on bacterial production in wetlands of tropical regions.

Brazil, Usage, Bacterial growth, Control, Contamination, Wetlands, Methylation, Assaying apparatus, Assay equipment

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