Soil nutrients sampled in and around harvester ant nests in three habitats at the Jornada Basin LTER site, 1987

This dataset contains soil nutrient content measurements from
harvester ant nests and reference soils in three nesting habitats at
the Jornada Basin LTER site in 1987. The purpose of this
investigation was to answer three general questions: 1. How does the
modification of soil properties and the ratios of resources (e.g.,
water-N) by ants alter species assemblages of winter annual plants
at the edge of the ant nests? 2. How does the "spring
cleaning", clipping, predation or herbivory by ants affect
success of the winter annual plants at the edge of ant nests? 3. Are
there significant differences in the floristic assemblage and
belowground standing crop (root biomass) between the edge of ant
nest and the surrounding unaffected soils? Five ant nests and paired
(non-nest) reference soils were sampled in three study locations.
This dataset contains chemical analyses for the soil samples
collected for each of the three sites, including total nitrogen,
(ammonium, nitrate), inorganic phosphorus, and exchangeable cations
(K+, Na+, Ca2+ and Mg2+). Also included is below ground biomass from
five ant nests for each of the three sites. This study was completed
in 1987.