Two-dimensional plot of non-metric dimensional scaling (NMDS) of the dissimilarity matrix (Bray Curtis distance) of daily secondary production of benthic macroinvertebrate taxa (Stress = 0.12). Rectangles are the center of gravity of each pond type (EXT extensive, SI semi-intensive, CSIF coupled semi-intensive, LAG lagoon) and are connected to the corresponding pond community/date combinations. Circles are communities in May, while triangles are communities in September. Crosses are projections of the taxa on the NMDS plot. Taxa codes: ANAX Anax imperator, ASELL Asellus aquaticus, CAENI Caenis sp., CHAET Chaetogaster sp., CHINY Chironomidae Nymphs, CHIRO Chironomini, CLOEO Cloeon dipterum, COENA Coenagrionidae, CORIXI Corixinae, DUGES Dugesia tigrina, ECHIN Echinogammarus berilloni, ECNOM Ecnomus tenellus, HYDRA Hydra sp., NAIDI “other” Naididae, OPHID Ophidonaïs serpentina, ORTHO Orthocladiinae, PHYSA Physa sp.a, RADIX Radix peregra, SYMPT Sympetrum sp., TANYP Tanypodinae, TUBIF “other” Tubificidae.