Alex Rădac | Universitatea de Vest din Timisoara (original) (raw)
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Posters by Alex Rădac
Conference Presentations by Alex Rădac
Cefa Nature Park is located at 25 km SW from Oradea and is a wetland of international importance,... more Cefa Nature Park is located at 25 km SW from Oradea and is a wetland of international importance, with large area of swamps, fishponds, channels, floodplains, forest and pastures. A total number of 66 species of true bugs were recorded, belonging to 55 genera and 17 families. The most representative family is Pentatomidae with 16 genera and 19 species. Specimens were collected from five different habitats by hand, pitfall traps and sweep net. The pitfall traps were active between May 2009 and April 2010 and the sweep net sampling took place in May 2012. Two important species were reported. A rare mycetophagus species, Aradus betulae (Linnaeus 1758) was found in Rădvani Forest under a dead Quercus robur tree bark. The exquisite preferences of the species on food and habitat show a good forest management in the region. The second species is the western conifer seed bug Leptoglossus occidentalis (Heidemann 1910) recorded for the third time in Romania after being mentioned in 2009 for the first time for Romania. The species was found only during cold season under tree bark or inside the buildings. This fact points that Cefa Nature Park offers a good overwintering habitats for this species.
Papers by Alex Rădac
Proceratium melinum (Roger, 1860) is a hypogaeic ant species that occurs in southern Europe. Very... more Proceratium melinum (Roger, 1860) is a hypogaeic ant species that occurs in southern Europe. Very little is known about the ecology and the distribution of this ant. In Romania there have been only two previous records from almost a century ago. We present a new record of this species and some insights regarding its ecology.
Cefa Nature Park is located at 25 km SW from Oradea and is a wetland of international importance,... more Cefa Nature Park is located at 25 km SW from Oradea and is a wetland of international importance, with large area of swamps, fishponds, channels, floodplains, forest and pastures. A total number of 66 species of true bugs were recorded, belonging to 55 genera and 17 families. The most representative family is Pentatomidae with 16 genera and 19 species. Specimens were collected from five different habitats by hand, pitfall traps and sweep net. The pitfall traps were active between May 2009 and April 2010 and the sweep net sampling took place in May 2012. Two important species were reported. A rare mycetophagus species, Aradus betulae (Linnaeus 1758) was found in Rădvani Forest under a dead Quercus robur tree bark. The exquisite preferences of the species on food and habitat show a good forest management in the region. The second species is the western conifer seed bug Leptoglossus occidentalis (Heidemann 1910) recorded for the third time in Romania after being mentioned in 2009 for the first time for Romania. The species was found only during cold season under tree bark or inside the buildings. This fact points that Cefa Nature Park offers a good overwintering habitats for this species.
Proceratium melinum (Roger, 1860) is a hypogaeic ant species that occurs in southern Europe. Very... more Proceratium melinum (Roger, 1860) is a hypogaeic ant species that occurs in southern Europe. Very little is known about the ecology and the distribution of this ant. In Romania there have been only two previous records from almost a century ago. We present a new record of this species and some insights regarding its ecology.