Plovdiv, Bulgaria
Plovdiv, Bulgaria

Time filter

Source Type

Demerdzhiev D.A.,31 Bulgaria Blvd . | Gradev G.Zh.,Green Balkans NGO | Stoychev S.A.,BSPB BirdLife Bulgaria | Ivanov I.I.,Green Balkans NGO | And 2 more authors.
Acta Zoologica Bulgarica | Year: 2011

Since 2000, the systematic conservation activities have resulted in an improved status of the Bulgarian population of Eastern Imperial Eagle (Aquila heliaca Savigny 1809). The population is estimated at 25-30 pairs. In the period 2001-2009, 13 newly occupied and 3 reoccupied territories were recorded. In 2009 the number of known occupied territories increased to 20. Occupied territories, breeding pairs, and population breeding parameters were recorded on annual basis. The recorded data included adult survival rate and age structure of the breeding population. The average values of the breeding parameters of the population for the period 2000-2009 were as follows: productivity 0.90±0.23; breeding success 1.01±0.26; fledglings success 1.56±0.25; and success rate 64.45% ±11.52. Nest guarding, rehabilitation of injured birds and subsequent release, "moving of pairs", supplementary feeding, construction of artificial nests, increase of the awareness among local communities and authorities, nesting habitat management, ringing of nestlings, satellite and radio tracking, and purchase of land around the nests have been implemented for the conservation of the species. The main threats are: habitat loss, disturbance, shooting, poisoning, and natural disasters.


Gradev G.G.,Green Balkans NGO | Matarranz V.G.,Dierccion General Del Medio Natural y Politica Forestal | Dobreva E.H.,Green Balkans NGO | Popov D.V.,Green Balkans NGO | And 3 more authors.
Acta Zoologica Bulgarica | Year: 2011

This paper presents the results of the first radio tagging of juvenile Eastern Imperial Eagles (Aquila heliaca Savigny 1809) in Bulgaria. The study was carried out in the period between July 2007 - June 2009. Two juvenile birds from the same clutch were radio-tagged in the nest before fledging, at the age of 54 and 60 days. In 2008, another juvenile individual was tagged with a radio transmitter. Useful information was gathered through the radio telemetry. A total of 141 positions of the three radio-tagged birds were located within the study period in the territories of three countries - Bulgaria, Turkey, and Israel, and two continents - Europe and Asia, providing data about the wandering period of juvenile individuals - movements, temporary settlement areas, etc. Four areas harboring concentrations or regular presence of 3 to 8 Eastern Imperial Eagles were confirmed or newly-found within this study. The gathered data reveals that juvenile Eastern Imperial Eagles from the Bulgarian population of the species winter in the country. The present study also presents the first data about the prey and the hunting territories of juvenile Eastern Imperial Eagles in Bulgaria after fledging. Having left the territory where it was hatched, one of the radio tracked birds migrated to Israel.


Heinrichs A.K.,EuroNatur Stiftung | Popov D.,Green Balkans NGO | Ssymank A.,Bundesamt fur Naturschutz
Natur und Landschaft | Year: 2014

Since Bulgaria joined the EU in January 2007, there is an obligation to fulfill EU legislation and transpose it into national law. This of course includes the implementation of the Natura 2000 network. Large areas of Sites of Community Interest (SCI) in Bulgaria have forest cover. They therefore fall under the responsibility of the state forest administration and are managed according to a 10-year planning cycle of forest management plans. Forestry thus is a main actor in SCI management. However, many of the current forest management plans only inadequately follow the necessary Natura 2000 conservation objectives; implementing such plans risks harming rare and threatened habitats and species. The integration of nature conservation objectives into forest management and consistent implementation of ecologically sustainable forest utilization are important future tasks for Bulgaria. Awareness among stakeholders and forestry administrations of the associated issues needs to be raised. Ground-breaking approaches have been developed during a joint project of EuroNatur and Green Balkans, and were tested successfully in the Smolyan region in southern Bulgaria. © 2014 W. Kohlhammer, Stuttgart.


Popov D.,Green Balkans NGO | Kirov D.,Green Balkans NGO | Zhelev P.,Green Balkans NGO
Acta Zoologica Bulgarica | Year: 2012

The paper presents information on marking with colour rings of Sandwich terns (Sterna sandvicensis) in the area of Pomorie Lake. The ringed birds are from Sandwich tern colony nesting on artificial islands created by Green Balkans NGO. This is the first marking in Bulgaria of Sandwich terns with colour rings and it was done in the period 2010-2012. In total 7 adult (nesting) and 264 juvenile birds have been marked. Data on follow-up observations of the ringed birds in the area of Pomorie Lake and abroad are presented. Within the study at Pomorie Lake are registered observations of Sandwich terns, marked with colour rings in Italy - Comacchio saltpans, Po Delta, Emilia-Romagna region. The data on place and date of marking of the foreign individuals is summarized after feedback information by Italian scientists. Seven adult and one juvenile birds have been tagged with radio-transmitters that provide opportunity for distant study of the birds. Outputs of that study are limited but provide important experience in planning of future efforts on that type of studies.


Kmetova E.,Green Balkans NGO | Zhelev P.,Green Balkans NGO | Mechev A.,Green Balkans NGO | Gradev G.,Green Balkans NGO | Ivanov I.,Green Balkans NGO
Acta Zoologica Bulgarica | Year: 2012

Lesser Kestrel (Falco naumanni, Fleischer, 1818) is a small falcon, extremely efficient in the combat against pests on cultural plantations. The current nesting status of the species in Bulgaria is extremely unclear. The option for natural re-colonization of the species is determined by the fact that Lesser Kestrels still breed relatively close to Bulgaria - in Turkey, FYRMacedonia and Greece. The current study reports the location and nesting number of five active Lesser Kestrel colonies in European Turkey and discusses the option of natural expansion of the population for re-colonizing suitable areas in South-eastern Bulgaria. Lesser Kestrel potentially suitable sites in Bulgaria are selected on the basis of a Habitat Suitability Model based on a set of indexed criteria applied in GIS environment.

Loading Green Balkans NGO collaborators
Loading Green Balkans NGO collaborators