A hypothesis about a new form of interspecies relations between ants based on the long-term field experiments is suggested. The hypothesis is named interspecies social control and consists in the precise regulation of the subdominant species' numer by dominants. This system of the behavioral regulation is based on the balance between competition and cooperation. The latter is a result of reciprocal parasitism. Ants of the dominant species maintain the abundance of subdominant ones at a definite level that allows them to avoid conflicts and depletion of resources. They also use subdominant species as "scouts" increasing the efficiency of hunting. Subdominant species steal honeydew form aphid populations which are raised by dominant ones. The hypothesis of the interspecies social control may be verified for communities of social animals with well-pronounced interspecies hierarchy and communication.
The diagnosis of a new genus of water mites
Shtanchaeva U. Ya., Netuzhilin I.A.
The paper summarizes the data on oribatid mites of the family Scutoverticidae (Acari, Oribatida) and presents diagnoses and keys to genera of this family. Three new oribatid species,
The geographic variability of twelve morphological characteristics in the stink bug
The clawed frog
Zerova M.D., Seregina L. Ya., Dawah H., Abdulah M.
Three new species of chalcidoid wasps of Eurytomidae
Nine species of gall midges are developing on five species of
The new species
Rogovin K.A., Semenov D.V.
The comparison of the results on skeletochronological determination of age in
Kupriyanova I.F., Puzachenko A. Yu., Agadzhanyan A.K.
Variation of cranial parameters (10 standard measurements, 154 sub-adults) was studied in
The structure of social interrelationships and a system of using space are described in groups of the Brandt vole
Ruchin A.B., Pestov M.V.
The illustrated descriptions of