[HTML][HTML] Diet of Eastern Imperial Eagle (Aquilaheliaca) in Bulgaria: composition, distribution and variation

D Demerdzhiev, Z Boev, D Dobrev… - Biodiversity Data …, 2022 - ncbi.nlm.nih.gov
Abstract The Eastern Imperial Eagle (EIE) is a top predator exploiting different prey in
different parts of its distribution. In this study, we summarise data collected over a long …

Foraging Patterns of Non-Territorial Eastern Imperial Eagle (Aquila heliaca): A Case of Successful Adaptation

D Demerdzhiev, I Angelov, D Dobrev - Diversity, 2022 - mdpi.com
The Optimal Foraging Theory predicts that, to maximize fitness, animals adapt their foraging
strategy that provides the most benefit for the lowest cost, maximizing the net energy gained …

Studying the demographic drivers of an increasing Imperial Eagle population to inform conservation management

D Demerdzhiev, S Stoychev, D Dobrev… - Biodiversity and …, 2015 - Springer
Assessing whether conservation management actions are effective requires a good
understanding of the demographic parameters that contribute to the population growth rate …

Temporal changes in the diet composition of the Eastern Imperial Eagle in Hungary

M HorvátH, B Solti, I Fatér, T JuHáSz, L HaraSztHy… - Ornis Hungarica, 2018 - sciendo.com
The diet composition of breeding Eastern Imperial Eagles (Aquila heliaca) was analysed in
Hungary between 2005 and 2017, and compared with two previously published datasets …

[PDF][PDF] Main mortality factors for the Eastern imperial eagle (Aquila heliaca Savigny, 1809) in Bulgaria

I Lazarova, D Dobrev, G Gradev, R Petrov… - Ornis …, 2020 - intapi.sciendo.com
Abstract The Eastern Imperial Eagle is a globally threatened species, represented with not
more than 35–40 pairs in Bulgaria. As a facultative scavenger feeding on carcasses and …

[HTML][HTML] Landscape alteration affects the demography of an endangered avian predator by reducing the habitat quality

D Demerdzhiev, D Dobrev, G Popgeorgiev, S Stoychev - Avian Research, 2022 - Elsevier
Habitat transformation is identified as major threat to biodiversity loss globally, affecting
threatened raptors. Changes in land use can alter the abundance and distribution of birds of …

Moderate evidence for the sex‐dependent effect of poisoning on adult survival in a long‐lived raptor species

B Zsinka, S Pásztory‐Kovács, S Kövér… - Ecology and …, 2024 - Wiley Online Library
Survival rate is usually the greatest contributor to population growth in long‐lived species,
and its accurate estimation along with the evaluation of the factors influencing it is therefore …

Conservation measures undertaken to improve the population status of eastern imperial eagle (Aquila heliaca) in Bulgaria

D Demerdzhiev, S Stoychev, D Dobrev, S Spasov… - Raptor …, 2014 - sciendo.com
This study presents the results of conservation measures undertaken and their impact on the
eastern imperial eagle population in Bulgaria. The species is distributed in the south-eastern …

Grassland Alterations Do Not Affect Breeding Success, but Can Explain Dietary Shifts of a Generalist Raptor Species

DA Demerdzhiev, DD Dobrev, ZN Boev - Diversity, 2023 - mdpi.com
Habitat alteration is a widespread threat severely affecting large raptors because of their low
density and the huge area they inhabit. In this study, we assessed whether human-driven …

Distribution, abundance, breeding parameters, threats and prey preferences of the eastern imperial eagle (Aquila heliaca) in European Turkey

D Demerdzhiev, D Dobrev, S Stoychev, N Terziev… - Raptor …, 2014 - sciendo.com
During the period 2008–2013, 32 different breeding territories were occupied by eastern
imperial eagles (EIEs). These territories were mainly distributed in two regions: the Dervent …