Abstract:
Maintaining of biodiversity is necessary not only for preserving of life
on earth in present, but for the future, for the next generations, due to it
preserve ecological equilibrium at the regional and global level, guarantee
regeneration of biological resources and maintaining of environmental
quality, absolutely necessary to the society. Aim of researches which are on
the basis of this work, consist in establishing of fauna study of arthropods
community of invertebrates referring abundance, establishing of influence of
different schemes of treatments on biodiversity indicators, taking into
consideration that any kind of pesticide treatment has an evident or less
evident influence on specific structure of fauna and on quantity of individuals
from the same species which is in culture aroecosystems, wheat Dropia.
Establishing of quantitative and qualitative structure of epigeic fauna of
fauna from soil level was done with Barber traps were situated in 3
replicates /variant. In the same variants were installed yellow sticky traps
type Pherocone AM (2/variant) which were let till the next opening of Barber
traps (approximately 1 week), when they were replaced, read and
interpreted. Epigeic fauna was collected during one week from 11.07 till
30.09 in 6 soil traps (6 times). Traps were filled with 4% formaldehyde and
opened for 7 days. At the data when were counted soil traps it was done a
visual counting of specimens captured on Pherocone AM, these were
replaced, after that were analyzed 8 areas on 9 cm2
, total 72 cm2
, being
identified captured fauna, and it was registered pest and useful fauna
captured on wheat plants by mown with entomological net (30 double
mown=10 m2
), in 4 replicates. Specimens captured in soil traps or on wheat
plants, were preserved in 700
alcohols and identified in laboratory. Taking
into consideration that not all the specimens could be identified till the
species level, their identifying was done till the level of genus, family, order
or class. Invertebrate community structure from the variants was compared
by calculating Sörensen Similarity Index. At the data when were visited traps
it was done a visual acount of pest and useful fauna. Obtained data sustain
the idea that predator species from soil level and from the plants could be
biodiversity indicators.
