Partitioning the impact of abiotic factors and spatial patterns on species richness and community structure of ground ant assemblages in four Bornean rainforests

A study in Gunung Mulu National Park, Borneo, reveals that environmental factors such as soil volume, tree density, and leaf litter significantly shape the species richness of ground-foraging ant communities, explaining 44% of the variance. While these abiotic parameters influence community composition only moderately (14%), spatial patterns also play a role but account for less variance in species distribution. The research suggests that environmental conditions determine the number of niches available to ants, while other factors like competition and neutral processes govern which species occupy those niches. This finding challenges purely spatial or neutral theories of community structure, highlighting the complex interplay between environmental and biotic forces in tropical ecosystems.

Mezger, D., & Pfeiffer, M. (2010). Partitioning the impact of abiotic factors and spatial patterns on species richness and community structure of ground ant assemblages in four Bornean rainforests. Ecography, 34(1), 39–48. Portico. https://doi.org/10.1111/j.1600-0587.2010.06538.x