OCR Output

146 IVII. Zoocoenological characteristics

§ THE APPLICATION OF THE CHARACTERISTICS

To demonstrate the zoocoenological census methods and the use of
characteristics, we use the following example.

The census location is a 7 ha field of sweet poppies belonging to the “Béke”
Agricultural Cooperative at Nagykovacsi, and the zoocoenological category
is a catenarium formed in the arvideserta biotope, on the energy source
transformed from the oecus Papaver somniferum. To simplify the example,
we omit the other semaphoront groups also caught there (that are obviously
associated through the presocium).

The field census was performed weekly, starting after the first weeding of
the poppies. During the census period, we distinguished four aspects of the
catenarium: that of Stenocarus ruficornis (sprouting plants), Apis mellifera
(flowering), Neoglocianus (Ceutorrhynchus) maculaalba larvae (development
of the poppy heads), and Aphis fabase (after ripening). Only the last three
appear on Plate II. The reason for this is the extraordinarily low abundance
of Stenocarus ruficornis population (2 adults per 100 plants), and whose
further development during the presence of the larval semaphoronts was not
followed.

It follows from the appearance of the aspects, that a zoocoenosis is a
process, composed of a series of events; a dynamic phenomenon during
which both its quantitative and qualitative characteristics must change. The
table aims to present this movement of the catenarium. To this end - deviating
from the general practice - the data presented are not those obtained during
the individual censuses, but those that convey the changes in the quantitative
and qualitative characteristics within the individual aspects.