Guide to bromeliad invertebrates "Bromeliads contain unique communities of aquatic invertebrates. The Srivastava Lab has been studying the ecology of bromeliad-dwelling invertebrates since 1997 at Estación Biológica Pitilla, in northwestern Costa Rica. This is a field guide to the species encountered to date."

Guide to tree-hole invertebrates "Tree holes contain diverse communities of aquatic invertebrates, some of which are also found in bromeliads and other phytotelmata, and some others which are tree hole specialist. The Srivastava Lab started studying the ecology of natural and artificial tree holes in northwestern Costa Rica in 2011. This is a field guide to the species encountered in forest patches around Estación Biológica Pitilla and sectors Santa Cecilia, La Josa, la Esperanza, Brasilia, Macori and Los Palmares."

Guide to mites and other microarthropods "This key was developed using keys in Krantz and Walter's Acarology (2009) and Moldenke and Fichter's Invertebrates of the H.J. Andrews Experimental Forest, Western Cascade Mountains, Oregon: IV. The Oribatid Mites (Acari: Cryptostigmata) (1988) as a point of departure. Couplets were modified to be accessible to non-experts and to facilitate identification under a dissection microscope."