The colour polymorphism in Enoplognatha ovatum (Clerck) (Araneae: Theridiidae)—Temporal stability and spatial variability

SummaryColonies of the visually polymorphic spider Enoplognatha ovatum have been studied in Nidderdale, Yorkshire, for up to six years. Morph frequencies are found to be stable within colonies between years but to vary between colonies only short distances apart. The stability of the polymorphism argues in favour of powerful selection acting on this… CONTINUE READING