Assessing the effect of agricultural land abandonment on bird communities in southern-eastern Europe by Zakkak, Sylvia, Radovic, Andreja, Nikolov, Stoyan C., Shumka, Spase, Kakalis, Lefteris, Kati, Vassiliki

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Identifying critical migratory bottlenecks and high‐use areas for an endangered migratory soaring bird across three continents by Buechley, Evan R., Oppel, Steffen, Beatty, William S., Nikolov, Stoyan C., Dobrev, Vladimir, Arkumarev, Volen, Saravia, Victoria, Bougain, Clementine, Bounas, Anastasios, Kret, Elzbieta, Skartsi, Theodora, Aktay, Lale, Aghababyan, Karen, Frehner, Ethan, Şekercioğlu, Çağan H.

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High juvenile mortality during migration in a declining population of a long‐distance migratory raptor by Oppel, Steffen, Dobrev, Vladimir, Arkumarev, Volen, Saravia, Victoria, Bounas, Anastasios, Kret, Elzbieta, Velevski, Metodija, Stoychev, Stoycho, Nikolov, Stoyan C, Arroyo, Beatriz

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Population reinforcement and demographic changes needed to stabilise the population of a migratory vulture by Oppel, Steffen, Saravia, Victoria, Bounas, Anastasios, Arkumarev, Volen, Kret, Elzbieta, Dobrev, Vladimir, Dobrev, Dobromir, Kordopatis, Panagiotis, Skartsi, Theodora, Velevski, Metodija, Petrovski, Nenad, Bino, Taulant, Topi, Mirjan, Klisurov, Ivaylo, Stoychev, Stoycho, Nikolov, Stoyan C.

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Differential survival throughout the full annual cycle of a migratory bird presents a life‐history trade‐off by Buechley, Evan R., Oppel, Steffen, Efrat, Ron, Phipps, W. Louis, Carbonell Alanís, Isidoro, Álvarez, Ernesto, Andreotti, Alessandro, Arkumarev, Volen, Berger‐Tal, Oded, Bermejo Bermejo, Ana, Bounas, Anastasios, Ceccolini, Guido, Cenerini, Anna, Dobrev, Vladimir, Duriez, Olivier, García, Javier, García‐Ripollés, Clara, Galán, Manuel, Gil, Alberto, Giraud, Lea, Hatzofe, Ohad, Iglesias‐Lebrija, Juan José, Karyakin, Igor, Kobierzycki, Erik, Kret, Elzbieta, Loercher, Franziska, López‐López, Pascual, Miller, Ygal, Mueller, Thomas, Nikolov, Stoyan C., Puente, Javier, Sapir, Nir, Saravia, Victoria, Şekercioğlu, Çağan H., Sillett, T. Scott, Tavares, José, Urios, Vicente, Marra, Peter P.

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Assessing the effectiveness of intensive conservation actions: Does guarding and feeding increase productivity and survival of Egyptian Vultures in the Balkans? by Oppel, Steffen, Dobrev, Vladimir, Arkumarev, Volen, Saravia, Victoria, Bounas, Anastasios, Kret, Elzbieta, Skartsi, Theodora, Velevski, Metodija, Stoychev, Stoycho, Nikolov, Stoyan C.

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Pursuit of ‘sustainable’ development may contribute to the vulture crisis in East Africa by OPPEL, STEFFEN, RUFFO, ALAZAR DAKA, BAKARI, SAMUEL, TESFAYE, MILLION, MENGISTU, SOLOMON, WONDAFRASH, MENGISTU, ENDRIS, AHMED, POURCHIER, CLOÉ, NGARI, ALEX, ARKUMAREV, VOLEN, NIKOLOV, STOYAN C.

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Effects of land abandonment and changing habitat structure on avian assemblages in upland pastures of Bulgaria by NIKOLOV, STOYAN C.

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Effect of stand age on bird communities in late-successional Macedonian pine forests in Bulgaria by Nikolov, Stoyan C.

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Following the White Vulture: Ethno-ornithology along the Flyway of the Egyptian Vulture (Neophron percnopterus) by Stara, Kalliopi, Saravia-Mullin, Victoria, Tsiakiris, Rigas, Adefolu, Solomon, Akyol, Adem, Akyol, Raziye İçtepe, Asswad, Nabegh Ghazal, Çetin, Turan, Dayyoub, Maher, Dushi, Gligor, Ivande, Samuel Tertese, Kordopatis, Panagiotis, Kret, Elzbieta, Özuslu, Serdar, Petrovski, Nenad, Simeonova, Ivalina, Spassova, Yana, Qaneer, Tareq Emad, Pourchier, Cloé, Saad, Louis Junior, ElSafoury, Hana, Topi, Mirjan, Trajҫe, Aleksandër, Ziu, Denada, Nikolov, Stoyan C.

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Electric infrastructure poses a significant threat at congregation sites of the globally threatened Steppe Eagle Aquila nipalensis in Saudi Arabia by SHOBRAK, MOHAMMED, ALASMARI, SAHEEM, ALQTHAMI, ABDULAZIZ, ALQTHAMI, FAHAD, AL-OTAIBI, ABDOULRAHMAN, AL ZOUBI, MOHAMMAD, EL MOGHRABI, LAITH, JBOUR, SHARIF, GHAZAL ASSWAD, NABEGH, OPPEL, STEFFEN, ARKUMAREV, VOLEN, NIKOLOV, STOYAN C.

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Population decline and range contraction of the Egyptian Vulture Neophron percnopterus in the Balkan Peninsula by VELEVSKI, METODIJA, NIKOLOV, STOYAN C., HALLMANN, BEN, DOBREV, VLADIMIR, SIDIROPOULOS, LAVRENTIS, SARAVIA, VICTORIA, TSIAKIRIS, RIGAS, ARKUMAREV, VOLEN, GALANAKI, ANTONIA, KOMINOS, THEODOROS, STARA, KALLIOPI, KRET, ELZBIETA, GRUBAČ, BRATISLAV, LISIČANEC, EMANUEL, KASTRITIS, THANOS, VAVYLIS, DIMITRIS, TOPI, MIRJAN, HOXHA, BLEDI, OPPEL, STEFFEN

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Congregations of wintering Egyptian Vultures Neophron percnopterus in Afar, Ethiopia: present status and implications for conservation by Arkumarev, Volen, Dobrev, Vladimir, Abebe, Yilma D, Popgeorgiev, Georgi, Nikolov, Stoyan C

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Diet is not related to productivity but to territory occupancy in a declining population of Egyptian Vultures Neophron percnopterus by DOBREV, VLADIMIR, BOEV, ZLATOZAR, ARKUMAREV, VOLEN, DOBREV, DOBROMIR, KRET, ELZBIETA, SARAVIA, VICTORIA, BOUNAS, ANASTASIOS, VAVYLIS, DIMITRIS, NIKOLOV, STOYAN C., OPPEL, STEFFEN

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Landscape factors affecting territory occupancy and breeding success of Egyptian Vultures on the Balkan Peninsula by Oppel, Steffen, Dobrev, Vladimir, Arkumarev, Volen, Saravia, Victoria, Bounas, Anastasios, Manolopoulos, Aris, Kret, Elzbieta, Velevski, Metodija, Popgeorgiev, Georgi S., Nikolov, Stoyan C.

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Assessing genetic diversity patterns at neutral and adaptive loci to inform population reinforcement of an endangered migratory vulture by Bounas, Anastasios, Saravia-Mullin, Victoria, Méndez, Maria, Arkumarev, Volen, Aghajanyan, Lusine, Ararat, Korsh, Buechley, Evan, Dobrev, Vladimir, Dobrev, Dobromir, Efrat, Ron, Klisurov, Ivaylo, Kret, Elzbieta, Skartsi, Theodora, Oppel, Steffen, Petrov, Rusko, Şekercioğlu, Çağan H., Vaidl, Anton, Donázar, José A., Nikolov, Stoyan C., Sotiropoulos, Konstantinos

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From research to implementation: Nature conservation in the Eastern Rhodopes mountains (Greece and Bulgaria), European Green Belt by Schindler, Stefan, Curado, Nuno, Nikolov, Stoyan C., Kret, Elzbieta, Cárcamo, Beatriz, Catsadorakis, Giorgos, Poirazidis, Kostas, Wrbka, Thomas, Kati, Vassiliki

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Major threats to a migratory raptor vary geographically along the eastern Mediterranean flyway by Oppel, Steffen, Arkumarev, Volen, Bakari, Samuel, Dobrev, Vladimir, Saravia-Mullin, Victoria, Adefolu, Solomon, Sözüer, Lale Aktay, Apeverga, Paul T., Arslan, Şafak, Barshep, Yahkat, Bino, Taulant, Bounas, Anastasios, Çetin, Turan, Dayyoub, Maher, Dobrev, Dobromir, Duro, Klea, El-Moghrabi, Laith, ElSafoury, Hana, Endris, Ahmed, Asswad, Nabegh Ghazal, Harry, Junior H., Ivande, Sam T., Jbour, Sharif, Kapsalis, Eleftherios, Kret, Elzbieta, Mahamued, Bruktawit A., Manu, Shiiwua A., Mengistu, Solomon, Moussa Zabeirou, Abdoul R., Muhammad, Sulaiman I., Nakev, Slave, Ngari, Alex, Onoja, Joseph, Osta, Maher, Özuslu, Serdar, Petrovski, Nenad, Popgeorgiev, Georgi, Pourchier, Cloé, Qaneer, Tareq, Ruffo, Alazar, Shobrak, Mohammed, Sidiropoulos, Lavrentis, Skartsi, Theodora, Sözüer, Özgün, Stara, Kalliopi, Tesfaye, Million, Topi, Mirjan, Vavylis, Dimitrios, Velevski, Metodija, Vorpsi, Zydjon, Wondafrash, Mengistu, Xeka, Erald, Yeniyurt, Can, Yordanov, Emil, Nikolov, Stoyan C.

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Should we trust beliefs or data when assessing conservation interventions? A reply to Stoynov 2016 by Oppel, Steffen, Dobrev, Vladimir, Arkumarev, Volen, Saravia, Victoria, Bounas, Anastasios, Kret, Elzbieta, Skartsi, Theodora, Velevski, Metodija, Stoychev, Stoycho, Nikolov, Stoyan C.

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Tracking data highlight the importance of human-induced mortality for large migratory birds at a flyway scale by Oppel, Steffen, Rotics, Shay, Santangeli, Andrea, Cano-Alonso, Luis S, Kemp, Ryno, Kalvāns, Aigars, Galarza, Aitor, Franco, Aldina M.A, Andreotti, Alessandro, Ferri, Andrea, Hernández-Matías, Antonio, Aradis, Arianna, Grozdanov, Atanas P, Rodríguez, Beneharo, Cerecedo-Iglesias, Catuxa, Kassara, Christina, Barboutis, Christos, Bracebridge, Claire, Schabo, Dana G, Barber, David R, Popov, Dimitar V, Monti, Flavio, Mougeot, Francois, Tate, Gareth, Stoyanov, Georgi, Dell'Omo, Giacomo, Lucia, Giuseppe, Ceccolini, Guido, Kolberg, Holger, Peshev, Hristo, Catry, Inês, Øien, Ingar J, Alanís, Isidoro Carbonell, Østnes, Jan E, Real, Joan, Guilherme, João L, González, José C, Gil, Juan Antonio, Terraube, Julien, Klein, Katharina, Bildstein, Keith L, Janssens, Kjell, Thompson, Lindy J, AlJahdhami, Mansoor H, Tobolka, Marcin, Cipollone, Mario, Gschweng, Marion, Strazds, Māris, Boorman, Mark, Zvidzai, Mark, Acácio, Marta, Wikelski, Martin, Sarà, Maurizio, Dagys, Mindaugas, Al Taq, Muna, Mgumba, Msafiri P, Virani, Munir Z, Tsiopelas, Nikos, Farwig, Nina, Sapir, Nir, Kleven, Oddmund, Krone, Oliver, Duriez, Olivier, Spiegel, Orr, Byholm, Patrik, Serroni, Pietro, Raab, Rainer, Buij, Ralph, Nathan, Ran, Bowie, Rauri C.K, Tsiakiris, Rigas, Hatfield, Richard Stratton, Harel, Roi, Kroglund, Rolf T, Efrat, Ron, Limiñana, Ruben, Javed, Salim, Marinković, Saša, Pekarsky, Sasha, Kapila, Shiv R, Krejčí, Šimon, Giokas, Sinos, Turjeman, Sondra, Krüger, Sonja C, Nikolov, Stoyan C, Qaneer, Tareq E, Spatz, Theresa, Hadjikyriakou, Thomas G, Mueller, Thomas, Katzner, Todd E, Aarvak, Tomas, Veselovský, Tomáš, Nygård, Torgeir, Sellis, Urmas, Urios, Vicente, Arkumarev, Volen, Getz, Wayne M, Van den Bossche, Willem, Lehnardt, Yael, Jones, Victoria R

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