bluuebunny/crossref_metadata_2025 huggingface dataset:
Structural Relationship Between Parental Support, Achievement Motivation and Career Attitude Determination as Perceived by High School Seniors from Multicultural Families
Authors:   The Korean Career·Entrepreneurship & Business Association, Lee Jonghun , Kim Juseob
Published: December 2023

The purpose of this study was to identify causal relationships by establishing a structural equation model with father and mother support as independent variables and achievement motivation as a mediating variable in order to determine the decisiveness of career attitudes among high school seniors from multicultural families. The subjects and data of this study were the 9th year longitudinal data of the Multicultural Adolescents Panel Study (MAPS) established by the Korea Youth Policy Institute. The subjects of this panel's investigation were 1,102 third-year students from a multicultural high school, and frequency analysis, descriptive statistics, exploratory factor analysis, reliability analysis and correlation analysis were conducted using the SPSS 26.0 statistical program. And the structural equation model was verified with the AMOS 26.0 statistical program to verify the measurement model confirmation step, path model step, and mediation effect.
The results of this study are as follows.
First, father support was found to have no statistically significant effect on career attitude determination. Second, mother's support was found to have no statistically significant effect on career attitude determination. Third, achievement motivation had a statistically significant direct effect on career attitude determination. Fourth, father's support had a statistically significant effect on career attitude determination. Fifth, mother's support had a statistically significant effect on career attitude determination. Sixth, a complete mediating effect was found between father's support and career attitude determination mediated by achievement motivation. Seventh, a complete mediating effect was found between mother's support and career attitude determination mediated by achievement motivation.
For third-year high school students from multicultural families, it is a very important factor to determine their career attitude to some extent as they are preparing to enter college or enter society. Since achievement motivation was confirmed to be the most important factor in determining career attitude, policy and practical measures to revitalize it were presented as implications.
Las políticas públicas educativas y culturales: caso del Estado de Guanajuato, México
Authors: Jasso Jiménez Fernanda
Published: December 2023

El artículo presenta las definiciones y etapas de acción de las políticas públicas en evaluación y monitoreo; además, desarrolla los conceptos básicos que forman parte de la administración pública los cuales sustentan y justifican el por qué de las políticas públicas.
Se realiza un análisis de las instituciones encargadas de contribuir a la revisión y seguimiento de las políticas públicas a través de marcos normativos e intervenciones gubernamentales de los organismos responsables en los niveles de gobierno federal y estatal en Guanajuato, México.
Por último el segundo apartado se enfocará en analizar el diseño de las políticas públicas relacionadas a los temas de cultura y educación.
El trabajo muestra cronológicamente los momentos relevantes en la consolidación de la política cultural  en México, pasando por sus instituciones, marcos normativos y decretos para aterrizar a lo realizado en el estado de Guanajuato y su manera de institucionalizar la cultura en el estado como variable que contribuye al bienestar económico, político y social para y por los guanajuatenses.
Musealización del patrimonio cultural de los alojamientos turísticos ubicados en edificios históricos
Authors: Marchena Ramos Carmen , Osorio Acosta Estefanía
Published: December 2023

En el presente artículo se muestra una propuesta para museizar los edificios patrimoniales con carácter histórico y cultural utilizados por la red de Hospederías de Castilla la Mancha a través de un guiaje interpretativo. Con esta iniciativa se pretende ofrecer un valor añadido al servicio turístico del hospedaje, así como poner en valor los edificios históricos en los que dichos alojamientos se asientan.  
El valor de esta investigación radica en la necesidad de la sociedad en general y el turista en particular que se aloja en alguna de estas hospederías, de conocer el lugar donde pernocta o que visita, mejorando considerablemente su experiencia turística en el destino. Así mismo, se justifica por los grandes beneficios que puede llegar a suponer para el respeto y la protección de nuestro patrimonio, pues se pretende conseguir el compromiso social por parte de estos turistas, de cuidar, preservar y salvaguardar la historia de estos edificios singulares.
Patrimonio Funerario. La musealización como medio para su conservación
Authors: Pons Mata Esmeralda , Carabal Montagud María Ángeles
Published: December 2023

La musealización de cementerios como estrategia de conservación de los mismos implica un análisis exhaustivo de la historia del recinto, revelando los valores y prácticas de las sociedades precedentes. Con un enfoque específico en el Cementerio Municipal de Alzira, se resalta el impacto de la revolución industrial y la burguesía en el estilo funerario, subrayando la necesidad de preservar las tradiciones pasadas como componente integral del patrimonio cultural.
Esta propuesta de musealización integra un estudio histórico, sociológico y bibliográfico para su ejecución. Se reconoce la participación comunitaria como elemento esencial para enriquecer el proceso, fomentando una comprensión colectiva del patrimonio funerario destinada a las generaciones venideras
Pembelajaran Model Cooperative Learning Tipe TAI untuk Meningkatkan Hasil Belajar Akuntansi
Authors: Mardiyanti Mardiyanti
Published: December 2023

Penelitian ini dilatarbelakangi rendahnya hasil belajar akuntansi kelas XI AKL 3 di SMK Negeri 1 Depok. Tujuan penelitian untuk mengetahui peningkatan hasil belajar peserta didik setelah menggunakan model cooperative learning tipe TAI. Penelitian ini merupakan Penelitian Tindakan Kelas yang berlangsung pada bulan Juli–September 2022. Subyek penelitian sebanyak 36 peserta didik. Obyek penelitian yaitu proses pelaksanaan pembelajaran dengan model cooperative learning tipe TAI. Instrumen dalam penelitian ini yaitu lembar penilaian RPP, lembar observasi dan soal tes. Prosedur penelitian dilaksanakan dengan dua siklus, siklus I terdiri dari 4 pertemuan dan siklus II terdiri dari 3 pertemuan. Hasil penelitian menunjukkan bahwa penerapan model cooperative learning tipe TAI dapat meningkatkan hasil belajar akuntansi di SMK Negeri 1 Depok. Peningkatan hasil belajar peserta didik ini ditandai dengan kenaikan jumlah peserta didik yang mencapai nilai di atas Kriteria Ketuntasan Minimal (KKM).  Hal tersebut dapat terlihat dari nilai rata-rata hasil belajar pada pra siklus 64 mengalami peningkatan pada siklus I dan siklus II yakni sebesar 78,61 dan 83,33. Selain nilai, pencapaian KKM juga mengalami kenaikan dari 36,11% pada pra siklus menjadi 66,67%% pada siklus I dan 89,89% pada siklus II.
Rapporteren over fraude en anti-corruptie door Nederlandse beursvennootschappen in aanloop naar de CSRD
Authors: Hijink Steven , van der Linden Monique , Soentpiet Micha
Published: December 2023

Dit artikel bevat de uitkomsten van het onderzoek naar informatieverschaffing over (fraude en) het tegengaan van corruptie in de jaarverslaggeving over 2022, van 37 statutair in Nederland gevestigde beursvennootschappen. Deze vennootschappen zullen binnen afzienbare tijd op grond van de CSRD en de daarop gebaseerde ESRS G1 verplicht specifiek voorgeschreven informatie over deze onderwerpen in het bestuursverslag moeten opnemen. De onderzochte beursvennootschappen sorteren in hun verslaggeving over 2022 al in enige mate voor op de CSRD en passen op dit moment vrijwillig (onder meer) de GRI-standaarden toe bij het rapporteren over duurzaamheid. Tegelijkertijd ligt het aantal vennootschappen dat expliciet rapporteert over GRI 205 (de GRI-standaard met specifieke publicatieverplichtingen over het tegengaan van corruptie en omkoping) een stuk lager. Op dit punt hebben beursvennootschappen dus nog werk te verzetten in aanloop naar de inwerkingtreding van de CSRD.
The relationship between family location and access of children to primary school in Samburu County, Kenya
Authors: Lanyasunya Andrew Ropilo , Charo Robinson M
Published: December 2023

This study sought to determine the relationship between family location and children's access to primary school in Samburu County, Kenya. Three agro-ecological zones and regions (Highland-Rural, Lowland-Rural, and Urban) impact differently on access to basic formal education among the nomadic pastoral Samburu. To facilitate the data collection, Samburu District was stratified into three clusters – Highland-Rural, Lowland-Rural and Urban. Multi-stage and random sampling were used to select from each cluster, one division, one location, one sub-location and then 200 household heads from all the villages in the sub-location. That is moving from the division down to the villages using random sampling. Data were collected and analysed using Excel and SPSS computer packages and further presented using descriptive and inferential statistics. The study recommends that for the government and/or non-governmental organisations undertaking interviews and programmes to improve the well-being of nomadic pastoralists (like the provision of schools), there is a need to take the various zones into consideration. More significantly, this study found that agro-ecological zones have a significant influence on access to basic formal education in Samburu District.
XXII Jornadas Argentinas de Historia de la Educación Argentina y Latinoamericana / III Encuentro de investigadores en formación
Authors: Flores Cristhian , Alexandre Julieta , Carou Delfina , Libfrand Melisa , Pavone Ignacio
Published: December 2023

XXII Jornadas Argentinas de Historia de la Educación Argentina y Latinoamericana / III Encuentro de investigadores en formación
Guic, L. (2023). El gobierno de la educación común. Estudio de las políticas educativas del Consejo Nacional de Educación hacia el Centenario de la Revolución de Mayo. Buenos Aires: Editorial Teseo libros-UNLa, 518 pp. ISBN 978-987-723-367-4
Authors: Gutierrez Gabriel
Published: December 2023

Guic, L. (2023). El gobierno de la educación común. Estudio de las políticas educativas del Consejo Nacional de Educación hacia el Centenario de la Revolución de Mayo. Buenos Aires: Editorial Teseo libros-UNLa, 518 pp.
ISBN 978-987-723-367-4
Literasi Digital: Tiktok Sebagai Media Pembelajaran Dalam Meningkatkan Pemahaman Kaidah Bahasa arab
Authors: Kasmudi
Published: December 2023

The use of technology has now penetrated all aspects of life, even in the education process, including Arabic language learning activities. TikTok is a video sharing social networking platform service that is growing quite rapidly. Previous research has stated that the use of TikTok as a medium for learning Arabic is very relevant to current developments. This research aims to find out the content for learning Arabic language rules that is most interesting and most liked by selected users from the hashtags #nahwu and #nahwushorof. The method used in this research is a content analysis method with a qualitative approach. Data collection techniques include observation and documentation. The subjects in this research were four TikTok creators who were selected based on the number of followers, number of likes and based on the content or Arabic learning materials they created. The objects of this research are videos uploaded by four TikTok creator accounts related to learning Arabic language rules and comments or responses from followers of these accounts as well as literature that supports the research. The research results show that there are four Arabic rules learning accounts that are uploaded regarding Arabic rules that are most liked and interested by TikTok users and followers based on audience engagement. The findings of this research can be used as one of the main literacies in learning Arabic language rules.
O sítio romano de Eira Velha (Miranda do Corvo, Coimbra) - Novas considerações acerca do seu posicionamento na rede viária romana
Authors: Rasteiro Inês
Published: December 2023

O reconhecimento do sítio arqueológico de Eira Velha veio altear a importância de Miranda do Corvo no seio das comunicações viárias em época romana. A escavação arqueológica conduzida neste local veio comprovar a presença de um entroncamento viário que permitiu classificar o sítio como estação viária. Estes dispositivos, implantados estrategicamente ao longo das vias, revelaram-se excelentes veículos de “Romanização” nas zonas mais rurais. Uma análise espacial com recurso às ferramentas dos Sistemas de Informação Geográfica (SIG) veio corroborar a possibilidade de estarmos perante um sítio que teve como principal propósito o exercício de funções viárias. Neste sentido apresentamos ao longo desta indagação um conjunto de reflexões acerca do posicionamento deste sítio na rede viária romana.
Una sociedad tardía. La tecnificación de la feminidad y la “elastificación” de la vida
Authors: Cayuela Aquilino
Published: December 2023

Las sociedades actuales son tardías. La realidad humana está retardada y desajustada respecto a su devenir biológico y su tiempo vital (su tiempo vivido). La biología femenina en nuestra sociedad es especialmente tardía, está retardada respecto a los procesos naturales, sus ciclos biológicos, y sus ritmos metabólicos. Este hecho ha disparado la demanda biotecnológica y la intervención artificial en los procesos relevantes propiamente corporales (biológicos, sexuales y procreativos). El “imaginario social” actual presenta esta característica debida principalmente al sacrificio del tiempo en “tiempo productivo”, también se debe al predominio político de perspectivas de género. La consecuencia, para llevar a cabo esa “elastificación” de la vida biológica, sobre todo en el mundo femenino, es la fuerte tecnificación de la vida y la dependencia de tratamientos hormonales y cosméticos.
Lecciones renacentistas para un alfabetismo digital: sobre la lectura en tiempos de PDF
Authors: García Domínguez Manuel , Moret Moliner Blanca
Published: December 2023

La lectura ha sido una de las prácticas más alteradas por la masificación de las tecnologías digitales a partir de la introducción de dispositivos como los libros electrónicos y de herramientas como los buscadores. A la luz de las formas de lectura que practicaban los humanistas renacentistas, el presente trabajo busca establecer una crítica a los vicios de la lectura digital y su relación con los procesos educativos. Para ello, en una primera sección exponemos algunas claves para comprender la lectura en los humanistas renacentistas de la mano de autores como Johann Geiler o Francesco Petrarca, centrándonos en la cuestión de la pedagogía y la dedicación de los libros. Posteriormente se desarrollan algunas de las dinámicas propias de la lectura digital y su correspondencia con el empeoramiento en la comprensión de los textos, tales como la lectura fragmentada, la dispersión intertextual o el exceso de celeridad en la lectura. Por último, recuperando las críticas recogidas a partir del pensamiento renacentista, planteamos algunos principios para una transformación de la lectura bajo el paradigma del humanismo digital, centrándonos en escenarios como la universidad y la enseñanza de la lectura.
Formación integral del estudiante universitario a través de textos literarios
Authors: De Ancos Morales Beatriz
Published: December 2023

Una de las principales tareas de la universidad, según J.H. Newman, consiste en la formación integral de los alumnos; formar personas sabias, con capacidad integradora de la realidad, buscadores del sentido de la vida, resilientes y comprometidos en trabajar por el bien común. La dedicación a la formación del carácter del joven constituye hoy una necesidad emergente en las instituciones de Educación Superior. Este artículo pretende mostrar cómo ello es posible a través de la lectura y análisis de una buena selección de textos literarios, antiguos y modernos, reflexionando sobre las situaciones y actitudes de los personajes, para formar en virtudes intelectuales, cívicas y morales, y dotar al joven estudiante de una sabiduría práctica.
Ebelik Öğrencilerinin Ebelik Mobil Aplikasyonları Hakkında Bilgi ve Görüşleri
Authors: YURTSAL Zeliha , EROĞLU Vasviye
Published: December 2023

Bu araştırmanın amacı ebelik öğrencilerinin ebelik mobil aplikasyonları hakkında bilgi ve görüşlerini belirlemektir. Tanımlayıcı nitelikteki araştırmanın örneklemi bir üniversitenin ebelik bölümünde öğrenim gören ve araştırmaya katılmayı kabul eden 303 öğrenciden oluşmuştur. Veriler öğrencilerin tanıtıcı bilgilerini ve mobil uygulamalar hakkında bilgi ve görüşlerini içeren veri toplama formu ile toplanmıştır. Tanımlayıcı istatistikler ile veriler analiz edilmiştir. Yaş ortalaması 20,38 olan ebelik öğrencilerinin %99,3’ünün akıllı telefon kullandığı, %58,7’sinin günde ortalama 6 saat online olduğu, mobil aplikasyonları en çok müzik (%73,2), sosyal medya (%71,8), fotoğraf programları (%67,4), alışveriş (%50,3) için kullandıkları ancak büyük bir çoğunluğun telefonunda (%81,2) ebelik alanında kullanabileceği bir aplikasyon bulunmadığı belirlenmiştir. Öğrencilerin yarıdan fazlası ebelik aplikasyonlarının ebelik işlerini kolaylaştıracağını, ebelerin daha üretken olmalarını sağlayacağını, bakımın maliyetini ve zaman kaybını azaltacağını, hizmet kalitesini arttıracağını, kadın sağlığının geliştirilmesine yardımcı olacağını ve gebe izlemini kolaylaştıracağını düşünmektedir. Ebelik öğrencilerinin ebelikte kullanılacak mobil aplikasyonların faydaları hakkında farkındalıklarının yüksek olduğu ancak ebelik alanında kullanılacak aplikasyonların yetersiz olduğu saptanmıştır. Ebelik alanında işleyişi ve bakımı kolaylaştıracak Türkçe mobil aplikasyonların oluşturulmasının ve kullanımının yaygınlaştırılmasının ebelik bakımının kalitesinin artmasına fayda sağlayacağı, zaman ve maliyet etkinliği oluşturacağı düşünülmektedir.
Elis Regina, digital necromancy, and negative presumption: a study of bill n° 3592/23 in dialogue with the European Union
Authors: Odebrecht Khauaja Pedro
Published: December 2023

The purpose of this paper is to analyze Brazilian Bill of Rights n° 3592/23, especially the context that motivated it, namely, the recreation of the image of the singer Elis Regina via Artificial Intelligence for use in a car commercial, and its potential legal consequences, if approved. In addition, it also proposes to analyze legally the legal instrument built by this project and by the discussions that circulate around it, which can be called "presumption of refusal to use the image after death", due to the current regulations on digital inheritance and use of Artificial Intelligence technologies. Finally, it proposes a dialogue between this Brazilian legal movement and the current regulatory landscape on the subject in the European Union, focusing on the rules for using Artificial Intelligence, Copyright and Image. For this research, a case study was conducted based on the institutional responses to the commercial that used the image of Elis Regina, with support from hypothetical-deductive analytical methods. Then, a comparative approach was carried out, with bibliographic review and theoretical study. The paper is divided into three parts: first, analyzing the phenomenon of "digital necromancy"; following with an analysis of the model case; and finally conducting a comparative theoretical study, to conclude that this Brazilian case offers an important opportunity for dialogue between Brazil and the European Union, possible due to common regulatory bases on the subject, and useful by proposing a new model for legally thinking about the dilemma of using an image after the death of individuals.
About the lack of direct horizontal effect of Directives in European Union Law
Authors: Cunha Rodrigues Nuno
Published: December 2023

The article aims to shed light on the distinction between Regulations and Directives as normative acts of European Union Law (derived). Based on these concepts, the principle of direct effect of European Union Law and the notion of direct applicability are clarified. These concepts do not have the same dimension in all European Union acts. The CJEU's case law recognizes the direct applicability of the Regulations (i.e. a direct vertical and horizontal effect). In the case of Directives, that jurisprudence only supports the possibility of vertical direct effect in relations between individuals and the State or public authorities in accordance with which individuals can invoke norms of a directive that are sufficiently clear, precise and unconditional in the context of relations legal-public. The CJEU does not recognize the possibility of a direct horizontal effect of Directives, which would be exercised in relationships between individuals (private legal relationships).
Short-term effects of wildfire on bird assemblages in old pine- and spruce-dominated forests in northern Sweden
Authors: Edenius L.
Published: December 2023

Effects of wildfire on forest birds have rarely been studied in Fennoscandia. Hence, birds were surveyed three years after fire at two large areas that were not subjected to salvage logging, in northern Sweden. The 300- and 440-ha burns and surrounding forests were dominated by Scots pine and Norway spruce, respectively. Closed-nest breeders and ground-feeding insectivores were more abundant within the burns than in the surrounding forests, whereas ground- and shrub-breeders were nearly equally abundant in the burns and in unburned forests. Redpoll and Tree Pipit were more common within than outside the burns. Birds feeding on insects in the air and the Redstart were more abundant in burned than in unburned spruce-dominated forest but no such difference was found in pine-dominated forest, suggesting that the short-term effects of wildfire on these birds were stronger in spruce-dominated forest than in pine-dominated forest. A contributing factor might be that crown fire killed most trees in the spruce-dominated burn, but most of the large trees survived the ground fire in the pine-dominated burn.
Differential timing of passage of populations of migratory Blackcaps (Sylvia atricapilla) in Spain: evidence from flight-associated morphology and recoveries
Authors: Arizaga J. , Barba E.
Published: December 2023

We examined the timing of passage of migratory Blackcaps (Sylvia atricapilld) at a stop-over site in northern Iberia, Spain, in an area relatively close to an important wintering area for the species, in southern Iberia. With this goal, we analysed ring-recovery data and examined the seasonal, year-to-year and age variations of flight-associated morphology (wing length and wing morphology). In autumn, Blackcaps with longer and more pointed wings (supposedly long-distance migrants) were captured significantly later than birds with shorter and less pointed wings (i.e., less pronounced long-distance morphology). Moreover, in autumn Blackcaps from the Britain and Ireland were proportionally more abundant than Blackcaps from mainland Europe during early autumn than during late autumn, supporting the hypothesis that Blackcaps from the Britain and Ireland migrate earlier than those from mainland Europe. These findings suggest that Blackcaps from the Britain and Ireland might have the wing morphology characteristics for shorter-distance rather than long-distance migration. In spring, however, wing length, wing morphology and the origin (Britain and Ireland versus mainland western Europe) did not vary with trapping date. This lack of differences in spring suggests an absence of a differential timing of passage by different Blackcap populations in spring. However, we may have been unable to detect such differences due to a small sample size or the fact that spring migration takes place within a shorter period than autumn migration.
Frugivory and size variation of animal prey in Black Redstart Phoenicurus ochruros during summer and autumn in south-western Poland
Authors: Orlowski G. , Karg J. , Czarnecka J.
Published: December 2023

Analyses of faeces of the Black Redstart Phoenicurus ochruros from the countryside of south-western Poland revealed a significant increase in the proportion of plant items (mainly berries of Sambucus nigralracemosa) between July and October; for animal prey items an inverse trend was found. During summer-autumn, no significant trends in the mass of all animal prey were found. The most numerous animal prey were three genera of ants (Lasius, Formica and Myrmica; 44.1% by number of all animal prey). Large numbers of undamaged seeds of several species of shrubs in the analyzed faeces, including non-native species, indicate that the Black Redstart is a potential disperser of woody plants in rural landscapes of Europe.
The effect of changes in land use on waterfowl species turnover in Finnish boreal lakes
Authors: Hilli-Lukkarinen M. , Kuitunen M. , Suhonen J.
Published: December 2023

Effects of different land-use types on nutrient and chemical run-off have been widely researched, but the total effect of changes in land use on communities of aquatic species is poorly known. We evaluated the effect of land-use change on waterfowl communities of boreal lakes. We conducted the study with topographicmaps and GIS-techniques in central Finland. We compared changes in the structure of waterfowl communities with changes in land use around 15 lakes over a period of 50 years. Over the period, agricultural land and bogs were reduced in area, while ditched areas increased significantly. The numbers of waterfowl breeding pairs and species increased slightly on the majority of lakes. The largest increases in breeding pairs were for Goldeneye Bucephala clangula and Teal Anas crecca. Interestingly, Mallard Anas platyrhynchos decreased in terms of both breeding pairs and the number of occupied lakes, although it has increased nationally. We found evidence of decreasing pair numbers of Mallards on lakes where adjacent dwellings increased in number. Changes in land use correlated with those in waterfowl communities but lake size appears to affect these results.After controlling for the effect of lake size, only the number of adjacent dwellings correlated significantly with changes in the number of breeding pairs ofMallards. According to our results, changes in the area of agricultural, bog or ditched land around lakes could not be clearly linked with changes in waterfowl communities.
Bacterial prevalence in the Dunnock (Prunella modularis) in sub-alpine habitats of the Western Carpathians, Slovak Republic
Authors: Kiskova Jana , Hrehova Zuzana , Janiga Marian , Lukan Martin , Haas Martina , Cucalova Zuzana
Published: December 2023

Birds may be important vectors of bacterial infections. The prevalence of some bacterial species in the digestive tract of the Dunnock (Prunella modularis), the numerically dominant avian species of sub-alpine habitats of the Western Carpathians, Slovak Republic, was studied. Species of bacteria were detected in pharyngeal and cloacal swabs obtained from 97 individuals using PCR assay. Seven Yersinia species were found in the samples, with the highest prevalence of Y. enterocolitica (34.0% of individuals). Three other genera of the family Enterobacteriaceae were detected in the samples: Serratia spp. (26.8%), Erwinia spp. (15.5%) and Pantoea spp. (45.4%). Erwinia spp. showed a significantly higher prevalence in the pharynx than in the cloaca. Three non-Enterobacteriaceae species were detected using species-specific primers: Pseudomonas fluorescens (39.2%), Pseudomonas fragi (28.9%) and Stenotrophomonas maltophilia (13.4%). Generally, bacterial contamination of birds was higher in April than in May-July. Pseudomonas fluorescens showed statistically significant differences between months and between adults and juveniles, while the occurrence of other types of bacteria was marginally lower in juveniles than in adults. The bacterial incidence and richness were similar between males and females.
Timing of migration of the Curlew Sandpiper (Calidris ferruginea) through Poland in relation to Arctic breeding conditions
Authors: Barshep Yahkat , Meissner Wlodzimierz , Underhill Les G.
Published: December 2023

Recent shifts in the timing of migration and breeding have been attributed to climate vari-ation in some migratory birds. However, the divergent patterns in the timing of autumn migration among different bird species suggest a significant role of factors other than cli-mate. Using data of constant-effort catches, determinants for the annual variation in the timing of migration were investigated in the Curlew Sandpiper Calidris ferruginea in Po-land. Variation in the timing for adult and juvenile Curlew Sandpipers was influenced by breeding success, which was in turn connected to predation pressure, and June and July temperatures on the species breeding grounds in the Arctic region. Median date of pas-sage of adults was significantly later in good than in poor breeding years. The migration of adults was earlier by 2.3 days for every 1°C increase in average June temperature in the Arctic breeding grounds. Median migration date of juveniles was positively correlated with predation and negatively with June temperature in the Arctic breeding grounds. Me-dian migration date of adults advanced by a factor of 0.59 days/year, which translates into 10 days from 19842000. These results suggest that conditions on breeding grounds can affect the timing of subsequent events within the annual cycle. Circumstantial evi-dence also suggests that climate change may have increased the predation on young Cur-lew Sandpipers, increasing the frequency of poor breeding years and modifying the tim-ing of autumn migration in these waders.
Comparing predation on forest grouse nests by avian and mammalian predators in two contrasting boreal forest landscapes by the use of artificial nests
Authors: Wegge Per , Ingul Halvor , Pollen Vebjörn , Halvorsrud Emil , Sivkov Andrey V. , Hjeljord Olav
Published: December 2023

Egg predation is an important determinant of breeding success among boreal forest grouse, but the relative roles ofmammalian and avian predators are poorly known. During spring/early summer of 2010, predation on artificial nests was studied by placing nests on the ground and on 1.5-m tall poles at two forested areas. One study site was highly fragmented due to intensive forestry (Varaldskogen, Norway) and the other site was a pristine, natural forest in north-western Russia (Pinega Forest Reserve). The nests on poles were subject to predation by birds and those on the ground by both mammals and birds. Total predationwas significantly higher inVaraldskogen than in Pinega. Ground nests suffered ca. 2.5 times higher losses than nests on poles. In Pinega, predation did not differ between the two nest types. The difference between the two areas was probably due to different predator guilds:mammalian generalist predators, such as theRed Fox (Vulpes vulpes) and Badger (Meles meles), were common in Varaldskogen but scarce or absent in Pinega. Canopy cover explained most of the variation in predation rate in Varaldskogen, but no significant relationship with canopy or nest concealment was detected in Pinega. Predation on pole nests varied across habitat types in a similarmanner at the two areas, but predation on ground nests did not. As Raven (Corvus corax) and Hooded Crow (Corvus corone cornix)were rare in both areas, these findings suggest similar searching and predatory behaviour of the two main (smaller) corvids, the Eurasian Jay (Garrulus glandarius) in Varaldskogen and the Siberian Jay (Perisoreus infaustus) in Pinega. Although the study design allowed a comparison between avian andmammalian nest predators, the lack of a clearer relationship between predation and certain variables suggests that nest predation is a complex process involving components of predator behaviour.
A choice between two adjacent islands: is switching nest sites related to weather or nest density in the Common Eider (Somateria mollissima)?
Authors: Jónsson Jón , Lúðvíksson. Smári J.
Published: December 2023

Birds change nest sites between years in response to breeding success in previous years, activities of other breeders, or weather conditions. Sixteen years of banding data and nest counts of the Common Eider in Rif, western Iceland, were used to evaluate probability of switching nest islands. The two man-made islands studied had different substrates (grass vs. rock) and in some years, different nest-initiation dates. Nest numbers were not related to weather. The apparent survival was not related to annual variation, weather or nest den-sity. Conversely, the probability of switching islands (movement probability) was plausi-bly affected by three covariates: (1) winters with higher precipitation decreased the prob-ability of switching from the grassy to the rocky island; (2) as winters became milder from 1993 to 2008, the probability of switching islands decreased; and (3) as the nest numbers increased from 155 to 606 during 1993–2008, the probability of switching islands de-creased. Winter weather may have affected nest switching primarily via precipitation, which partly determined water levels in the colony. An inverse relationship between nest density and the probability of switching islands is consistent with conspecific facilitation in colonially-nesting bird species.
Decline of Long-tailed Duck Clangula hyemalis numbers in the Pomeranian Bay revealed by two different survey methods
Authors: Bellebaum Jochen , Kube Jan , Schulz Axel , Skov Henrik , Wendeln Helmut
Published: December 2023

Abundance of Long-tailed Ducks Clangula hyemalis wintering in the Pomeranian Bay was monitored between 1988 and 2014, using both ship-based and aerial surveys and cor-recting for distance dependent detection. Aerial surveys were conducted using an im-proved transect division and a double observer design to estimate detection probability near the transect line. As the latter probability was considerably below 1, we applied an additional correction factor for observer efficiency. After correcting for observer effi-ciency in aerial surveys, the two methodological approaches yielded similar densities, though an apparent underestimation in aerial surveys warrants further cross-validation. Density estimates from both platforms were merged for further analysis. After reaching peak levels in 1992 and 1993, Long-tailed Duck winter densities in the Pomeranian Bay declined by 82% until 2010. This decline was part of an overall decline in numbers throughout the Baltic Sea. An apparent increase since 2010, which was likely due to local ice-induced movements, indicates that habitats in the study area may still support high densities today.
Habitat and nest site preferences of Red-backed Shrike (Lanius collurio) in western Denmark
Authors: Svendsen Jannie K. , Sell Henrik , Bøcher Peder , Svenning Jens-Christian
Published: December 2023

In this study we evaluate nest site and habitat preferences of Red-backed Shrike (Lanius collurio) in the national park Mols Bjerge, Denmark. In total, 28 nests were found during 2010 and 2011. To determine nesting site preferences, the species composition of vegetation in scrub used for nesting was compared to that of nearest unused scrub. To evaluate habitat preferences, a Resource Selection Probability Function (RSPF) was modelled based on presence/absence data. The habitat factors were represented by Light Detection And Ranging (LIDAR) derived measures of vegetation height and topographic wetness as well as distance to nearest road/path, as an indicator of human disturbance. Scrub used as nesting sites were characterized by thorny shrub species such as Prunus spinosa and Rubus fruticosus. RSPF showed that shrike presence was positively correlated with vegetation heterogeneity and high topographic wetness, and that it was unaffected by the distance to the nearest road/path. These results provide some guidelines for management, showing that Red-backed Shrike for nesting preferred habitats with high wetness, possibly linked to food availability, and heterogeneous vegetation, consistent with their need for low vegetation for hunting and higher vegetation for hunting perches and nest sites, with thorny shrubs especially important for the latter.
An update of the European breeding population sizes and trends of the Ortolan Bunting (Emberiza hortulana)
Authors: Jiguet Frédéric , Siblet Jean-Philippe , Skierczynski Michal , Selstam Gunnar , Piha Markus , Minkevicius Simonas , Kirwan Guy M. , Hargues Régis , Ferrand Yves , Elts Jaanus , Dombrovski Valery , Dale Svein , Czajkowski Michel Alexandre , Couzi Laurent , Copete José Luis , Belik Viktor , Bauer Hans-Günther , Arlettaz Raphaël , Sokolov Aleksandr
Published: December 2023

Following recent updates proposed by BirdLife International and further updates across Europe gathered in the context of a continent-wide study of the migration strategy of the species, we propose here an update of national population sizes and associated recent trends of the Ortolan Bunting (Emberiza hortulana). Previous estimates for the period 1999-2002 reported 5,200,000 to 16,000,000 breeding pairs, for an area extending east to European Russia, and south to the Caucasus and Turkey. The countries holding the largest populations were Turkey (3-10 million pairs) and Russia (1.5-5.0 million pairs). The updated results give approximately 3,319,000 to 7,057,000 pairs in Europe (for the period 2012-2014), representing a c. 50% decrease in numbers over the last decade. This decrease is partly due to overestimates proposed in previous reports for the key country, Turkey, which is now considered to support only 500,00 to 1,000,000 pairs. Russia still holds 2.0-4.3 million pairs, although with an estimated decline of c.15-30% since 2000. Overall, within the 39 European countries assesed here, recent deadal trends (on average 2000-2012) in population size are reported as unknown in 15 countries, increasing in 2 countries (Germany and Serbia), stable or fluctuating in 6 countries, and decreasing in 16 countries including recent extinctions in Belgium, Hungary, Slovakia and the Netherlands. Overall, declining populations are mostly lacated in northern Europe, and fourteen of the 15 northern European countries with a known national trend have declining breeding populations, suggesting that northern breeders are of particular conservation concern.
Stopover strategies of Eurasian Blackcaps (Sylvia atricapilla) during the post-fledging period in western Hungary
Authors: Gyurácz József , Bánhidi Péter , Góczán József , Illés Péter , Kalmár Sándor , Lukács Zoltán , Németh Csaba , Molnár Péter , Varga László
Published: December 2023

Stopover strategies of the Eurasian Blackcap (Sylvia atricapilla) during the post-fledging period were studied at Tömörd, western Hungary, between 1998 and 2015. Capture data of juveniles and adults were pooled for both sexes, and recapture rate, stopover length and fat deposition patterns were analyzed. During stopover, males and females did not differ significantly in stopover length, total change in body mass, proportion or rate of body mass change, or change in fat score. Among all recaptures, an overall significant positive correlation was recognized between mass deposition rate (g/day) and departure body mass. According to our results, both males and females use a time-minimization migration strategy in autumn. The benefit of this strategy might be that it favors early arrival in the overwintering areas, before competitors. The individuals arriving earlier at wintering sites might obtain higher-quality territories and achieve higher winter survival.
Fuelling strategies differ among juvenile Sedge and Reed Warblers along the eastern European flyway during autumn migration
Authors: Stepniewska Katarzyna , Ozarowska Agnieszka , Busse Przemyslaw , Zehtindjiev Pavel , Ilieva Mihaela , Hnatyna Oksana , Meissner Wlodzimierz
Published: December 2023

In this study, we investigated fattening strategies of juvenile Sedge and Reed Warblers during their autumn migration. We analysed fat scores of birds captured at five ringing sites situated between the southern Baltic Sea coast and Asia Minor. In Eastern Europe these two species had similarly low fat reserves. Their fat load increased in the Balkans. Remarkable differences between the species were noted in Asia Minor, where fat reserves of Sedge Warblers were more than two-fold higher compared to Reed Warblers. As high as 90% of Sedge and only 30% of Reed Warblers captured in Asia Minor had the potential capability to cross the Mediterranean Sea in one non-stop flight. Moreover, two-thirds of those Sedge Warblers were able to continue their long flight without refuelling and reach the southern edge of the Sahara desert, while in Reed Warblers only 6% of individuals were potentially able to use the same strategy. The results of the study show clear differences in potential flight ranges of the studied species, revealing different fattening strategies of the Sedge and Reed Warbler in the Balkans and Asia Minor.
Capercaillie (Tetrao urogallus) eggshell pigmentation, maculation and thickness
Authors: Rosenberger Joanna , Lukaszewicz Ewa , Kowalczyk Artur , Rzonca Zenon
Published: December 2023

Eggshells properties (mainly thickness, pigmentation and shape) vary within avian taxa across species, and intraspecifically with age, environmental conditions or individual features of the animals. The properties and appearance of eggshells are important for successful breeding both for birds kept in captivity and in breeding centres and those living in their natural environment. The presented study focuses on the association between the pigmentation, maculation and eggshell thickness of Western Capercaillie (Tetrao urogallus) kept in captivity. The eggs were collected during the entire egg-laying season in order to determine the factors which influence eggshell pigmentation and thickness across the laying period. We found that at the equator surface the lightest eggs had a tendency to be thinner than the darkest ones. In addition, eggshells with a smooth pattern were thinner at the equator, especially when compared to the mottled ones. There was no statistically significant association between the eggshell overall lightness (eggshell pigmentation except the concentrated pigment spots), maculation and eggshell thickness at the blunt and sharp ends of the eggshell. Eggshells were on average 5.5% thicker at spots than in other areas. The obtained results suggest that the spot pigment forms an additional layer on the Capercaillie eggshell and does not compensate for the loss of thickness, as observed in some bird species (Passeriformes, Falconiformes).
Ensemble of small models for estimating potential abundance of Caucasian grouse (Lyrurus mlokosiewiczi) in Iran
Authors: Habibzadeh Nader , Ludwig Tobias
Published: December 2023

The need to obtain information on population size to inform management actions for conservation is imperative. Despite this, reliable data on Caucasian grouse abundance is scarce in Iran. The goal of this study was to explore the potential distribution of Caucasian grouse using an ensemble of small models with outstanding performance for modelling rare species’ distributions to estimate the potential population size in Iran. We fitted an ensemble of small models with generalized boosted model (GBM) and maximum entropy (MaxEnt), and then built a final ensemble prediction by averaging across these two ensembles of small models.
Tracing the origin of vagrant Siberian songbirds with stable isotopes: the case of Yellow-browed Warbler (Abrornis inornatus) in Fennoscandia
Authors: Jong Adriaan , Torniainen Jyrki , Bourski Oleg V. , Heim Wieland , Edenius Lars
Published: December 2023

Vagrant birds are mesmerizing birdwatchers worldwide, but the nature of vagrancy and the true origin of the vagrants are poorly known. To Western Europe, the massive Siberian land mass delivers most of the vagrant songbirds, e.g. Yellow-browed Warbler (YBW) (Abrornis inornatus, formerly Phylloscopus inornatus). In this study we used stable hydrogen isotope ratios in tail feathers (d2Hf) from two ringing stations in northern Fennoscandia in an attempt to link vagrant YBW to potential regions of origin. We could do this thanks to a collection of samples from nestling and breeding adult YBW in Central Siberia. Compared with the nestling samples, the Fennoscandian d2Hf data indicated origins in the western and/or southern parts of the breeding range. The assignment map created in IsoMAP showed high probabilities of origins in the Komi Republic, N/NW of the Ural Mountains. Although our study rules out a large proportion of the YBW breeding range, our method could not pin-point a precise region of origin.
Habitat preferences of Sombre Tit (Poecile lugubris) in a karst environment
Authors: Dimitrova Marta , Brambilla Mattia , Nikolov Boris P.
Published: December 2023

Sombre Tit (Poecile lugubris) is one of the least studied passerine bird species in Europe, and the least known among Paridae species on the continent. The aim of the study is to identify its habitat preferences in a karst environment. The study took place in 2016–2017 within the “Rayanovtsi” Special Protection Area in Western Bulgaria – a limestone terrain with a mosaic of open areas, shrubs and scattered woodland, featured by sinkholes, rocks and caves. Territory and control plots were identified by means of point counts and territory mapping. To quantitatively describe the habitat structure and the fine-scale land-cover, 17 habitat variables were measured at both territory and control plots (the latter located at unoccupied sites), within a radius (180 m) approximating the territory size of the species.
Seeking greener pastures: crop selection by Greylag Geese (Anser anser) during the moulting season
Authors: Strong Emily A. , Redpath Steve M. , Montrŕs-Janer Teresa , Elmberg Johan , Månsson Johan
Published: December 2023

Over the last 40 years, many goose populations have recovered from historic lows and are now more numerous than ever. At the same time, geese have shifted from natural foraging habitats to securing most of their nutritional demands from agricultural fields, leading to crop damage and conflict with agriculture. We studied field use by Greylag Geese (Anser anser) in the agricultural landscape surrounding a main breeding and moulting lake in Sweden. From 2012 to 2016, weekly roadside surveys were conducted from May to July. Data were collected on goose numbers, crop type and sward height in agricultural fields. Using a compositional analysis, we demonstrate that Greylag Geese show a strong selection for ley and pasture fields compared to other crop types (rank order: ley/pasture > oat > barley > wheat > other crops). This selection was consistent across years and between pre- and post-moult. Aside from ley and pasture, no other crop types were selected for, as they were used less than expected given their availability. Irrespective of crop type, geese foraged predominantly on short (0–10 cm) swards. The strong selection for ley and pasture may have been driven by higher nutritional quality of short, managed grass swards relative to other available foods. This suggests that during the summer grass fields may be more vulnerable to damage compared to other crop types. Our study provides a deeper understanding of the ecology of Greylag Geese, which may be used to inform management strategies focused on mitigating crop damage and alleviating conflict.