Edaphic and light conditions of sympatric plant morphotypes in western Amazonia

Request article access

Roncal, J. 2014. Edaphic and light conditions of sympatric plant morphotypes in western Amazonia. Biodiversity Data Journal 2:e1078.

Abstract:

Here I present a dataset of edaphic and light conditions associated with the occurrence of sympatric morphotypes of Geonoma macrostachys (Arecaceae/Palmae), a candidate case study from Amazonia hypothesized to have evolved under ecological speciation. Transects were established in three lowland rainforests in Peru, and the abundance of each local morphotype of this species was recorded in a total area of 4.95 hectares. Composite soil samples and hemispherical photographs were taken along the transects were the species occurred to obtain information on soil nutrients, soil texture, and indirect measurements of light availability. The raw and summary tables disclose the characteristics of each study site and habitats within them, which could be useful to soil scientists, ecologists, and conservationists engaged in similar research activities or meta-analyses in Amazonia.

Keywords: Canopy openness, floodplain, Geonoma macrostachys, habitat differentiation, leaf area index, Peru, slope, soil texture, soil nutrients, terra firme, transmitted light, tropical rainforest