Inventário da entomofauna remanescente na área urbana de Belém

Abstract

The present work aims to inventory the herbivorous entomofauna in the understory of Belém Parks, in order to identify the remaining native entomofauna and the main resources used by these insects. The studies at MPEG Park took place from 26110/1999 to 24/02/00, with 3 weekly observations, always from 7:00 AM to 9:00 AM. Each visit included: 1. a survey of the plants to record the insects' visitation; 2. observation of the insects' behavior to identify their use of the resource (feeding, resting, oviposition, mating, etc); 3. marking and location of the plant; 4. identification of the plant; and 5. Collecting insects for identification purposes. Collections were made manually, with a mechanical vacuum cleaner or with the aid of a puçá (a kind of grapnel). The individuals collected were kept dry and later identified. So far, 77 samples have been collected at PZB/MPEG, with an accumulation of 228 insects. 70% of the animals collected have been identified by family, totaling 15 families. The others, sorted by order, make up a total of 8 orders. The studies began in the Forest on May 8, 2000, with only three visits so far. The comparison of insect occurrence between native and introduced plants at PZBIMPEG showed that the differences between native and introduced plants are only in the number of orders present on the leaves (Ptestet=0.02).