Трофічні зв’язки Pterostichus melanarius (coleoptera, carabidae) із домінантними видами безхребетних лісових екосистем степового Придніпров’я

Abstract

Розглянуто особливості взаємозв’язків Pterostichus melanarius (Illiger, 1798) із представниками ґрунтово-підстилкової мезофауни. В умовах лісових екосистем степового Придніпров’я P. melanarius віддає перевагу зоофагам І порядку, які належать до розмірно-вагової категорії 8,0–31,9 мг, а також сапро- та фітофагам із вагою понад 128 мг. P. melanarius (Ill.) здатний перерозподіляти трофічне навантеження між кормовими об’єктами залежно від їх чисельності у конкретному біотопі. Для дослід­женого виду характерна надзвичайно широка трофічна ніша порівняно з іншими видами турунів, що є однією з основних причин високої чисельності P. melanarius (Ill.) у багатьох антропогенно трансформованих екосистемах.

Morphological polymorphism in an urban population of <em>Pterostichus melanarius</em> (Illiger, 1798) (Coleoptera, Carabidae)

“…Invertebrates that contain in their body poorly studied poisonous compounds form an exception to this dietary pattern (Symondson, 1997). A detailed study of the diet of P. melanarius diet in laboratory conditions (Brygadyrenko & Korolev, 2006;Korolev & Brygadyrenko, 2012a, 2012b allowed us to show that this species has an extremely wide range of diet compared to other species of the Pterostichus genus. Searching for an explanation for such a wide trophic range, we attempted to define the individual preferences of certain individuals (Korolev & Brygadyrenko, 2014).…”

Patterns in the horizontal structure of litter invertebrate communities in windbreak plantations in the steppe zone of the Ukraine

“…The species of ground beetles which have been studied in laboratory conditions, often eat ants of the Formica, Lasius and Myrmica families (Komarov and Brygadyrenko 2011;Korolev and Brygadyrenko 2012). Despite this fact, these beetles turned out to be much more scarce near the ant-hills than in areas with average populations of Formicidae.…”

“…This can be explained by competition and by the occasional consumption of ground beetles by the ants (Hawes et al 2013), but also by the disturbance experienced by the beetles as a result of frequent encounters with ants. In the course of our laboratory experiments, large species of ground beetle species of the Pterostichus family could eat more than 10 ants of the Lasius and Myrmica families in 24 h, yet the ants cannot be considered as the staple diet of the beetles (Komarov and Brygadyrenko 2011;Korolev and Brygadyrenko 2012). The elimination by ants of the food base of ground beetles, the continuous disturbance the ants cause, and the effect of formic acid on the integument of many predatory invertebrate species cause the decrease in beetle abundance near ant hills.…”

“…The priority in our research into the litter invertebrates of the Ukraine's steppe zone windbreak plantations was the distribution of certain species, particularly the pests of agricultural crops and forest plantations. The peculiarities of the trophic structure of forest plantation communities in the steppe zone have only been analysed in recent years (Komarov and Brygadyrenko 2011;Korolev and Brygadyrenko 2012). However, the distribution structure of litter macrofauna communities in most types of forest plantations in the Ukraines steppe zone has been insufficiently studied.…”