Marisia - Maros Megyei Múzeum Évkönyve 29-30/2. (2010)

Zoology

Boris VERESCEAGHIN, Svetlana BACAL, Galina BUSMACHIU--------------------------------------i-------------------------------------:----------------------------------------------------’_______________________i______________________

samples were collected, and multi-seasonal dynamics of collembolans was studied. To highlight a wider range of species moss samples were collected on decomposed logs, soil on the banks of ponds, from wetlands and meadows and hydrophilous species on the water surface and aquatic vegetation [2, 3, 5].

As result of performed research in the State Natural Reserve „Piaiul Fagului” 118 species of collembolans were recorded belonging to 37 genera and 17 families, which constitute more than half of the total number of species identified in the Republic of Moldova. Among these species of greatest interest are the rare ones from the genera Karlstejnia, Deutonura and Vertagopus. Approximately 70% of the total number of species identified in the reserve can be met in saproxilicolous and saprolignicolous microhabitats. The most densely populated are the mosses and decaying logs. For some species the decomposed wood or wet sector are the only inhabiting place, while others are found only in the area of contact between soil and decayed wood.

The results ofstudies accomplished on the three invertebrate groups emphasize the abundance of species present in forest ecosystems and their importance for biodiversity conservation.

Conclusions

The forest is a natural ecosystem that includes the flora, fauna and soil together with an entire complex of invertebrates, of which importance is major and varied for the natural balance. To know and maintain the forest entomofauna is important to see the forest as a complex and functional biocenosis. The dendrophilous insects constitute only a small part among the diversity of forest species, the density of which is regulated by entomophagous species and don’t need special control measures.

The invertebrates represent an important link of the trophic chain within the forest ecosystems and at the same time have an essential role in the processes of humification and recycling of matter and energy in nature.

REFERENCES

1. Bacal, S., Busmachiu, G., Calestru, L., 2010, Taxonomic composition of insects (Collembola, Coleoptern: Carabidae, Silpbidae, Staphylinidae and Chrysomelidae) from the forest ecosystems of the Republic of Moldova. Romania, Bárlad. Museul “Vasile Párvan’. Acta musei tutovensis, IV. 267—275.

2. Busmachiu, G., 2007, Seazonal fluctuation and some aspects of Collembola distribution from the “Piaiul Fagului” Natural Forest Reserve. Muzeul Olteniei Craiova. Studii si comunicäri. Stiintele naturii, V. 23. 77—80.

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