Efeito de fatores ambientais sobre a riqueza e composição de formigas (Hymenoptera. formicidae) na área do campus da Universidade Federal do Amazonas - UFAM

Abstract

Fragmentation can cause abrupt changes in biotic conditions and abiotics in forest fragments. This process can change the dynamics in the composition of populations and communities. The disturbances caused by fragmentation, can be studied through knowledge of biodiversity of ants, because they are able to respond to the stress of the environment and because they have great distribution and abundance. The purpose of this work evaluate the influence of environmental variables, width of the shallow end and distance from the nearest edge over ground ant assemblages in an area of forest fragment. The collections were carried out in the period of September 2012, on the UFAM campus, along 10 riparian parcels. the ants were captured with the aid of pit-fall traps, with 10 traps per plot. All analyzes were performed using the R software (R Core Team, 2019). In total, 1,639 ants were identified, distributed in five subfamilies, 24 genera and 57 species/morphospecies. The registered subfamilies were Myromycine, Formicae, Ectatomminae, Ponerinae and Dorylinae. pheidole, Camponotus and Crematogaster were the most rich genera. THE composition, frequency and species richness is distributed in a manner uniform over the 10 parcels present in the fragment, not being directly influenced by the effects caused by fragmentation.. Keywords: fragmentation, myrmecofauna, interactions.