Pseudoscorpions: Cryptic Predators of the Soil
by Jan A. Neethling
Pre-Devonian in origin, the Pseudoscorpiones are one of the oldest extant lineages and over the past 392 Ma have diverged into more than 3400 known species in 26 families.
Most are less than five millimetres in length, though they range from less than one millimetre in some Chthoniidae to just over ten millimetres in females of Garypus titanius Beier, 1961. They superficially resemble true scorpions, but lack the elongated metasoma (tail) and telson (sting). They do, however, share the six-segmented pedipalps, with the tibia and tarsus modified into a chela with a movable finger.
The choice of agricultural landscape has an influence on crop (and soil) health.
Agricultural landscapes are by implication complex adaptive systems, tailored by anthropogenic interference. The relationship between structure and function, e.g. trophic structures, diversity – productivity connections and nutrient fluctuation patterns of such landscapes is fundamental in their organization, whether self-driven or regulated.
What lies beneath: South Africa’s megadiversity of soil biota
Following the the publication by Janion-Scheepers et al., SERG was invited to write a series of blogs about South Africa’s soil biodiversity that featured on the Global Soil Biodiversity Initiative’s (GSBI) widely read blog, “Beneath our Feet”.
You can read our blogs here:
Janion-Scheepers, C., Measey, J., Braschler, B., Chown, S.L., Coetzee, L., Colville, J.F., Dames, J., Davies, A.B., Davies, S., Davis, A., Dippenaar-Schoeman, A.S., Duffy, G.A., Fourie, D., Griffiths, C., Haddad, C.R., Hamer, M., Herbert, D., Hugo-Coetzee, E.A., Jacobs, A., Jacobs,. K., Jansen van Rensburg, C., Lamani, S., Lotz, L.N., Louw, S.vdM., Lyle, R., Malan, A.P., Marais, M., Neethling, J.-A., Nxele, T., Plisko, D., Prendini, L., Rink, A.N., Swart, A., Theron, P., Truter, M., Ueckermann, E., Uys, V.M., Villet, M.H., Willows-Munrow, S. & Wilson, J.R. 2016. Soil biota in a megadiverse country: current knowledge and future research directions in South Africa. Pedobiologia 59, pp 129-174. Doi: 10.1016/j.pedobi.2016.03.004
vdM Louw S, Wilson JRU, Janion C, Veldtman R, Davies SJ, Matthew Addison M (2014) The unknown underworld: understanding soil health in South Africa. South African Journal of Science 110, number 5/6, doi: 10.1590/ sajs.2014/a0064.