Results 41 to 50 of about 22,319 (189)

Sex-Biased and Density-Dependent Natal Dispersal in a Highly Mobile but Philopatric Raptor. [PDF]

Ecol Evol
High philopatry, female‐biased natal dispersal distances, and density‐dependent dispersal patterns (with both conspecific attraction and competition avoidance) were found in the eastern imperial eagle. The study was conducted on the natal dispersal data obtained from 116 birds between 2011 and 2024 in the Pannonian region, using the combination of ...
Zsinka B, Kövér S, Horváth M, Vili N, Szabó-Csonka V, Szabó K, Pásztory-Kovács S.   +6 more
europepmc   +2 more sources

Moderate evidence for the sex-dependent effect of poisoning on adult survival in a long-lived raptor species. [PDF]

Ecol Evol
Survival estimation of adult imperial eagles revealed that poisoning activity may have a stronger negative effect on the survival of the smaller‐bodied, more actively foraging males than on females. The genetic‐based mark‐recapture analysis was conducted on data of over 600 birds breeding in Hungary between 2011 and 2022.
Zsinka B, Pásztory-Kovács S, Kövér S, Vili N, Horváth M.   +4 more
europepmc   +2 more sources

Annual report on surveillance for avian influenza in poultry and wild birds in Member States of the European Union in 2022. [PDF]

EFSA J, 2023
Abstract All European Union (EU) Member States (MSs) are required to implement surveillance for avian influenza (AI) in poultry and wild birds and (i) to notify the outbreaks, when relevant and (ii) to report the results to the responsible authority.
European Food Safety Authority (EFSA), Aznar I, Kohnle L, Stoicescu A, van Houtum A, Zancanaro G.   +5 more
europepmc   +2 more sources

A LEAP Forward in Wildlife Conservation: A Standardized Framework to Determine Mortality Causes in Large GPS-Tagged Birds. [PDF]

Ecol Evol
A novel framework for determining the causes of mortality of large GPS‐tagged birds, the LIFE EUROKITE Assessment Protocol (LEAP), was developed. LEAP integrates GPS tracking data, site investigation, and necropsy to derive mortality causes and a corresponding certainty score. Two case studies demonstrated improvements in mortality assessments compared
Panter CT, Nebel C, Raab M, Strauss V, Freytag C, Wojta M, Böing H, Hacker P, Raab R, Windt J, Posautz A, Kuebber-Heiss A, Scherler P, Grüebler MU, Kormann UG, Kolbe M, Millon A, de la Puente J, Viñuela J, Orr-Ewing D, Krone O, Langgemach T, Åkesson S, Mattsson B, Sumasgutner P, Alcántara de la Fuente M, Alvarez E, Arizaga J, Bach Pagès A, Bermejo A, Ceccolini G, Chakarov N, Derpmann-Hagenström P, Dostál M, Fabian G, Fiedler W, Galán M, Ganier C, Gärtner A, Glesener L, Godino A, Guziová Z, Haraszthy L, Karlsson C, Klein K, Literák I, Lorenzini N, Löwold M, Lüning C, Maderič B, Makoň K, Mammen K, Mammen U, Marczak T, Matušík H, Mionnet A, Morollón S, Mráz J, Nachtigall W, Nicolai B, Olalde Fernández M, Ottensmann M, Palacios González MJ, Paquet JY, Pečeňák V, Peške L, Pfeiffer T, Pudwill R, Rak D, Rapp TM, Resetaritz A, van Rijn S, Riols R, Rodríguez A, Scholze L, Schulte L, de Seynes A, Škrábal J, Spakovszky P, Steinborn E, Svetlík J, Talhoet S, Vaczi M, Verdier AG, Vermouzek Z, Villanúa Inglada D, Westphal J, Raab R.   +87 more
europepmc   +2 more sources

Management impacts on three reptile species (Vipera ursinii, Lacerta agilis, Lacerta viridis) in sandy grasslands in Hungary: Mowing should be avoided

Conservation Science and Practice, Volume 5, Issue 12, December 2023., 2023
The manuscript presents results of a study on the impact of widely used grassland use types on threatened grassland dwelling reptiles in Pannonic sand steppe habitat. We used repeated surveys on grazed, mowed, and grazed + mowed grasslands to estimate the effect of grassland use density of the endangered Hungarian meadow viper (Vipera ursinii ...
Edvárd Mizsei, Mátyás Budai, Attila Móré, Gergő Rák, Dávid Radovics, Barnabás Bancsik, Bálint Wenner, Szabolcs Márton, Zoltán Korsós, Szabolcs Lengyel, Csaba Vadász   +10 more
wiley   +1 more source

Accumulation agents and bird assemblages: The case of the TE9d level at Sima del Elefante (Sierra de Atapuerca, Spain)

International Journal of Osteoarchaeology, Volume 33, Issue 4, Page 652-667, July/August 2023., 2023
Abstract Bird assemblages can be found in archeological sites throughout the Pleistocene. Taphonomy studies are key to understanding how such assemblages were formed. These assemblages can be generated by various agents, including human groups, animals, and natural death.
Mario Marqueta, Rosa Huguet, Carmen Núñez‐Lahuerta   +2 more
wiley   +1 more source

Avian influenza annual report 2023. [PDF]

EFSA J
Abstract All European Union (EU) Member States (MSs), along with Iceland, Norway, Switzerland and the United Kingdom (Northern Ireland), conduct surveillance for avian influenza (AI) in poultry and wild birds. EFSA, upon mandate of the European Commission, compiles and analyses this data in an annual report.
European Food Safety Authority (EFSA), Abrahantes JC, Aznar I, Catalin I, Kohnle L, Mulligan KF, Mur L, Stoicescu A, van Houtum A, Zancanaro G.   +9 more
europepmc   +2 more sources

Colpocephalum undetermined

, 2021
Colpocephalum sp. Host: Aquila heliaca Savigny, 1809. Ref.: Balát (1956) as Colpocephalum sp.? flavescens (Haan, 1829). Location: Slovakia, 18 Sep. 1950 (Balát 1956). Notes: Balát (1956) recorded Colpocephalum sp.?
Krištofík, Ján, Sychra, Oldřich, Ošlejšková, Lucie, Trnka, Alfréd   +3 more
core   +1 more source

Seasonal Aspects of the Diet of the Volga Population of the Eastern Imperial Eagle During the Breeding Season

Пернатые хищники и их охрана, 2023
Diet is a key factor in determining the status of large raptor populations. Regional studies of the diet of the Volga population of the Eastern Imperial Eagle (Aquila heliaca) are mainly based on the collection of food remains and scats at nesting sites.
Mikhail V. Korepov
doaj   +1 more source

Movement Patterns of Juvenile and Immature Eastern Imperial Eagles from Bulgaria

Пернатые хищники и их охрана, 2023
Eastern Imperial Eagle (Aquila heliaca) populations in Central Europe and Balkans are non-migratory while most of those in the eastern part of the range are migratory.
Stoycho A. Stoychev, Dimitar A. Demerdzhiev, Dobromir D. Dobrev, Svetoslav D. Spasov, Volen Arkumarev, Anton Stamenov, Nikolai G. Terziev, Bernd-Ulrich Meyburg, Georgi S. Popgeorgiev   +8 more
doaj   +1 more source