Contributions to the study of a community of soil-surface arthropods from an anthropic-modified ecosystem in the area of Borod (Bihor county, NW Romania)

The present work refers to the study of a community of soil-surface arthropods in a forest established through territorial arrangement in the area of Borod (Bihor County). Invertebrates were determined after collected from 5 habitats with the help of the Barber traps. A total of 348 invertebrates were collected, belonging to 16 different taxa. In habitat No. 4 we found the highest number of individuals, and habitat No. 5 is the richest in taxa. Opilionids and Araneids have the highest occurrence, being euconstant and the number of constant and euconstant taxa combined represents almost 40% of the total taxa, which suggests a lower stability of structure among the main groups of invertebrates that were identified. The trophic spectrum indicates the predominance of carnivore predators, followed by detritivores, herbivores and parasites. The diversity and the similarity indexes have close values showing the uniformity of the zoocenotic composition.