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The Biodiversity Day was held at Gyűrűfű three times between 2006 and 2008. On these occasions a total of 146 ground beetles species were collected. This material included 11 protected and 8 rare species. Compared to the previous data published on the Zselic region there were 54 additional species, also 2 that are new to the fauna of Baranya county: Elaphrus uliginosus Fabricius, 1792, Bradycellus caucasicus (Chaudoir, 1846). Besides, remarks on 8 rare species are presented. The high number of species is due to the diverse habitats of the region and the intensiveness and wide variety of collection methods used.

The scientific definition of polyethylene terephthalate (PET) changed for polyester in the common language. It was first manufactured in 1928 and the production of the fibre version started in 1941. Nowadays, 70% of artificial textile raw materials are polyester fibres and a significant amount of plastic waste is generated at the end of the life cycle of polyester clothing and other end products. The injection moulding process introduced in the 1970s made it possible to design and produce three-dimensional objects, and this resulted in the spreading of light, transparent, resistant and non-fragile PET bottles. Given that the degradation of PET is more than 450 years, the increase of recycling and reprocessing is an urgent pressure.

Eleven species o f Phoridae were obtained during the survey of invertebrates fauna of four caves in the Bakony Mountains of Hungary. Four species are new records for Hungary: