Ardeola-International Journal of Ornithology最新文献

{"title":"Long-Term Shifts in Admissions of Birds to Wildlife Recovery Centres Reflect Changes in Societal Attitudes towards Wildlife in Spain","authors":"J. Jiménez, J. Crespo, A. Martínez‐Abraín","doi":"10.13157/arla.69.2.2022.sc3","DOIUrl":"https://doi.org/10.13157/arla.69.2.2022.sc3","url":null,"abstract":"Summary. Public attitudes towards wildlife in Spain are thought to have changed substantially as a result of mass relocation from rural villages to big cities during the last six or seven decades. One way to test this change is to examine the causes of admission of wildlife to recovery centres. In this study we analyse c. 70,000 admissions of birds to the three rehabilitation centres of the regional government of Valencia (Eastern Spain) during 30 years (1991-2020). Using multiple hypotheses testing, specified by means of Poisson regressions and selected via AIC, we found that our more parsimonious models included only the interaction between causes of admission, habitat and source of origin with time (in five-year periods). Specifically, admissions resulting from non-natural causes decreased over time and those due to accidents with infrastructure or due to non human-related causes showed an increase. Birds of prey were more commonly admitted due to deliberate persecution than the other bird groups studied (6.36% v. 1.23%), but the trend over time of raptor admissions due to illegal shooting was negative and strong, declining from 21.7% in 1991-1995 to 3.0% in 2016-2020. Collisions against infrastructures were the main cause of accidental admissions (59.5%), followed by electrocutions (14.8%) and road kills (9.6%). Admissions due to natural causes were mainly of orphaned young birds or undernourished individuals (85%). The number of orphaned bird admissions increased exponentially during the study period. Regarding habitat of origin, bird admissions from urban and rural areas showed a stronger increase over time compared to those from natural areas. Finally, admissions from official sources prevailed until 2011, but thereafter unofficial (i.e. individual people) sources became prevalent. In summary, bird admissions initially coming from non-urban areas and associated with official entities shifted to coming from urban areas associated with unofficial sources. This is interpreted by us to be a reliable confirmation of the change in attitudes of modern Spanish society towards wildlife. Causes of admission to WRCs are dynamic at decadal time scales and are expected to keep changing in the near future.—Jiménez, J., Crespo, J. & Martínez-Abraín, A. (2022). Long-term shifts in admissions of birds to wildlife recovery centres reflect changes in societal attitudes towards wildlife in Spain. Ardeola, 69: 291-302. Resumen. A raíz de la concentración de la mayor parte de la población en ciudades durante las últimas 6-7 décadas, la actitud del ser humano respecto a la fauna silvestre supuestamente ha cambiado de manera sustancial en España. Una manera de demostrar ese cambio de conducta es analizar las causas de entrada de la fauna ingresada en centros de recuperación. En este estudio analizamos las entradas (ca. 70.000) de aves a los tres centros dependientes del gobierno regional en la Comunidad Valenciana (E, España) durante 30 años (1991-2020). Modeliza","PeriodicalId":55571,"journal":{"name":"Ardeola-International Journal of Ornithology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77390305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plumage Coloration in Greater Flamingos Phoenicopterus roseus is Affected by Interactions between Foraging Site, Body Condition and Sex","authors":"J. Amat, Araceli Garrido, M. Rendón-Martos, Francesca Portavia, Miguel A. Rendón","doi":"10.13157/arla.69.2.2022.ra3","DOIUrl":"https://doi.org/10.13157/arla.69.2.2022.ra3","url":null,"abstract":"Summary. It has been proposed that carotenoid-based pigmentation should indicate the ability of individuals to acquire food and that this should be reflected in their body condition. In this study we examined whether the body condition of Greater Flamingos Phoenicopterus roseus was related to plumage coloration and the interaction of both variables with sex and foraging site. To this end, we conducted a field study to collect data on sex-related body condition and plumage coloration at two wetlands in southern Spain. We found that body condition was site-related, that the more colourful individuals were in better body condition, and that females were more colourful and in better body condition than males. Together, the results suggest that females have greater need than males to signal individual quality, likely because females encounter higher intraseasonal costs than males during reproduction, and choosing low-quality females could severely limit breeding success. Also, plumage coloration may signal individual status at foraging sites throughout the year.—Amat, J.A., Garrido, A., Rendón-Martos, M., Portavia, F. & Rendón, M.A. (2022). Plumage coloration in Greater Flamingos Phoenicopterus roseus is affected by interactions between foraging site, body condition and sex. Ardeola, 69: 219-229. Resumen. Se ha propuesto que la pigmentación basada en carotenoides indicaría la habilidad de los individuos para obtener alimento y que ello se reflejaría en su condición corporal. En este estudio examinamos si la condición corporal del flamenco común Phoenicopterus roseus estuvo relacionada con la coloración del plumaje, así como la interacción de ambas variables con el sexo y el sitio de alimentación. Para ello realizamos un estudio de campo, durante el cual tomamos datos sobre condición corporal y color del plumaje en relación al sexo en dos humedales del sur de España. Encontramos que la condición corporal estuvo relacionada con el sitio, que los individuos más coloridos presentaron una condición corporal mejor y que las hembras fueron más coloridas y con una condición corporal mejor en comparación a los machos. En conjunto, los resultados sugirieron que las hembras tendrían una necesidad mayor que los machos para señalizar la calidad individual, probablemente porque las hembras asumen dentro de la época de reproducción unos costes mayores que los machos, de forma que las hembras de baja calidad podrían limitar severamente el éxito de cría. Además, la coloración del plumaje podría señalizar el estatus individual en las zonas de alimentación a lo largo del año.—Amat, J.A., Garrido, A., Rendón-Martos, M., Portavia, F. y Rendón, M.A. (2022). La coloración del plumaje en los flamencos comunes Phoenicopterus roseus está afectada por interacciones entre el sitio de alimentación, la condición corporal y el sexo. Ardeola, 69: 219-229.","PeriodicalId":55571,"journal":{"name":"Ardeola-International Journal of Ornithology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75941519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Avalanche Tracks are Key Habitats for the Rock Bunting Emberiza cia in the Alps","authors":"Emmanuel Requena, Riccardo Alba, Domenico Rosselli, D. Chamberlain","doi":"10.13157/arla.69.2.2022.ra2","DOIUrl":"https://doi.org/10.13157/arla.69.2.2022.ra2","url":null,"abstract":"Summary. In mountains, habitat mosaics, such as those found at the upper limit of coniferous forests in temperate regions, host relatively high avian diversity. In European mountains in particular, open-habitat bird species are threatened by a decrease in agro-pastoral activities and by global warming. Snow avalanches act as a natural agent of disturbance that maintains open habitats and thus may contribute to habitat heterogeneity at elevations below the treeline. Using the Rock Bunting Emberiza cia as a study species, we assessed the suitability of avalanche tracks as refuges for ecotone and semi-open habitat bird species. We studied habitat associations and other environmental factors that affect the species' occurrence based on data from point counts and habitat surveys carried out in the Alps. Rock Bunting presence was greater on avalanche tracks than in adjacent habitats at lower elevations. Habitats with high Rock Bunting presence were characterised by a shrubby mosaic that was more open than the surrounding forest. There was no difference between avalanche tracks and control points at the treeline. Rock Bunting densities at avalanche tracks in the forest were similar to those in the treeline and the alpine belt, thus showing that avalanches create an ecotone habitat equivalent to the treeline at lower elevations. Rock Buntings used grassy habitats that had an intermediate rock cover, with patches of shrubs inside gullies. This optimal habitat probably provides nest sites that minimise exposure to predators whilst being close to patches of grass that provide foraging habitat. In a context of climate change, where avalanche activity might increase due to later snowfalls in spring, habitat mosaics created by this type of disturbance could play a fundamental role in the conservation of semi-open habitat bird species in the Alps.—Requena, E., Alba, R., Rosselli, D. & Chamberlain, D. (2022). Avalanche tracks are key habitats for the Rock Bunting Emberiza cia in the Alps. Ardeola, 69: 203-217. Resumen. En las montañas, los mosaicos de hábitats, como los que se encuentran en el límite superior de los bosques de coníferas en las regiones templadas, albergan una diversidad de aves rela- tivamente alta. En las montañas europeas, en particular, las especies de aves de hábitat abierto están amenazadas por la disminución de las actividades agropecuarias y por el calentamiento global. Los aludes de nieve actúan como un agente natural de perturbación que mantiene los hábitats abiertos y, por lo tanto, pueden contribuir a la heterogeneidad del hábitat en las altitudes por debajo del límite arbóreo. Utilizando el escribano montesino Emberiza cia como especie de estudio, evaluamos la idoneidad de las zonas de trayectoria de aludes como refugios para especies de aves de ecotono y hábitat semiabierto. Estudiamos las asociaciones de hábitat y otros factores ambientales que afectan a la presencia de la especie a partir de los datos de puntos de conteo y estudio","PeriodicalId":55571,"journal":{"name":"Ardeola-International Journal of Ornithology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75552789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identifying Avian Seed Dispersers through DNA Barcoding After Rapid Field Sampling","authors":"J. P. González‐Varo, B. Rumeu, A. Traveset, J. Illera","doi":"10.13157/arla.69.2.2022.sc2","DOIUrl":"https://doi.org/10.13157/arla.69.2.2022.sc2","url":null,"abstract":"Summary. Avian seed dispersers are mostly identified by direct observations of fruit consumption or by analysis of seeds ejected by mist-netted birds. However, these methods typically require many fieldwork days to provide initial insight into which bird species disperse the seeds of a plant species or community of interest. Here, we highlight the advantages of DNA-barcoding analysis after rapid field sampling to uncover unknown seed dispersers. By rapid field sampling we refer to searching and sampling bird-dispersed seeds during a short period of time (just a few hours) in places where the probability of seed deposition is high. This ‘one-day’ sampling strategy relies on a major advantage of DNA barcoding: it allows identifying disperser species during a relatively long period after they defecate or regurgitate seeds, over a time frame of several weeks. We showcase this methodological approach with three emblematic and threatened plant species for which there is little or no information on avian seed dispersal, either from their entire range or in certain populations. The approach can be cost-effective and very valuable for pilot studies aimed at providing initial information on poorly known systems, or in locations where periodical fieldwork is not feasible owing to accessibility or logistic constraints.—González-Varo, J.P., Rumeu, B., Traveset, A. & Illera, J.C. (2022). Identifying avian seed dispersers through DNA barcoding after rapid field sampling. Ardeola, 69: 279-290. Resumen. Las aves dispersoras de semillas se identifican principalmente mediante observaciones de consumo de frutos o mediante capturas con redes de niebla para el análisis posterior de las semillas expulsadas. Sin embargo, estos métodos generalmente requieren muchos días de trabajo de campo para proporcionar una primera idea de qué especies de aves dispersan las semillas de una especie de planta o una comunidad vegetal de interés. Aquí, destacamos las ventajas del análisis de códigos de barras de ADN después de un muestreo de campo rápido para descubrir dispersores de semillas desconocidos. Con muestreo de campo rápido nos referimos a la búsqueda y muestreo de semillas dispersadas por aves durante un período corto de tiempo (de tan sólo unas horas) en lugares donde la probabilidad de deposición de semillas es alta. Esta estrategia de muestreo ‘en un único día’ se basa en una gran ventaja de los códigos de barras de ADN: permiten identificar especies dispersoras durante un período relativamente largo desde que estas defecan o regurgitan las semillas, cubriendo un marco temporal de varias semanas. Mostramos este enfoque metodológico con tres especies de plantas emblemáticas y amenazadas para las cuales hay poca o ninguna información sobre la dispersión de semillas por aves, ya sea para toda su área de distribución o en determinadas poblaciones. El enfoque puede ser rentable y muy valioso para estudios piloto destinados a proporcionar información inicial sobre sistemas poco ","PeriodicalId":55571,"journal":{"name":"Ardeola-International Journal of Ornithology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91115263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Obtaining DNA Samples from Sensitive and Endangered Bird Species: A Comparison of Saliva and Blood Samples","authors":"Christopher Cambrone, S. Motreuil, Francis O. Reyes, Miguel A. Landestoy, F. Cézilly, É. Bezault","doi":"10.13157/arla.69.2.2022.sc1","DOIUrl":"https://doi.org/10.13157/arla.69.2.2022.sc1","url":null,"abstract":"Summary. Methods used to collect biological samples from birds for genetic analyses should allow high-quality DNA to be obtained in sufficient quantities, while limiting negative effects on sampled individuals. In this context, we assessed the potential use of saliva sampling (using buccal swabs) as an alternative to blood sampling (supposedly more stressful) in a near-threatened Caribbean-endemic, the White-crowned Pigeon Patagioenas leucocephala, a bird known to be highly sensitive to capture and handling, based on samples collected from 28 adults captured in the wild. We quantitatively and qualitatively compared DNA extracts, amplifications of two mitochondrial genes (∼430 bp and 1040 bp), and molecular sexing between saliva and blood samples. As expected, blood samples provided larger amounts of DNA of heavy molecular weight than buccal swabs. However, buccal swabs were as reliable as blood samples as a source of genetic material to sequence mtDNA. On the other hand, buccal swab samples might require an improved PCR protocol to sex all individuals successfully. We discuss the use of buccal swabs vs. blood sampling as a way to obtain DNA in relation to research objectives and minimising stress and harmful effects. —Cambrone, C., Motreuil, S., Reyes, F.O., Landestroy, M.A., Cézilly, F. & Bezault, E. (2022). Obtaining DNA samples from sensitive and endangered bird species: a comparison of saliva and blood samples. Ardeola, 69: 263-278. Resumen. Los métodos utilizados para recolectar muestras biológicas de aves para análisis genéticos deberían permitir la obtención de ADN de alta calidad en cantidades suficientes, limitando al mismo tiempo los efectos negativos a los individuos muestreados. En este contexto, evaluamos el uso potencial del muestreo de saliva (usando hisopos bucales) como una alternativa al muestreo de sangre (supuestamente más estresante) en la paloma coronita Patagioenas leucocephala, una especie endémica del Caribe, casi amenazada, y conocida por ser altamente sensible a la captura y manejo. En el estudio se usaron muestras recolectadas de 28 aves adultas capturadas en la naturaleza. Comparamos cuantitativa y cualitativamente extractos de ADN, la amplificación de dos genes mitocondriales (∼430 pb y 1040 pb) y el sexado molecular entre la saliva y la sangre. Como era de esperar, las muestras de sangre produjeron mayores cantidades de ADN y con mayor peso molecular que los hisopos bucales. Sin embargo, los hisopos bucales resultaron ser tan confiables como las muestras de sangre como fuente de material genético para secuenciar el ADNmt. Por otro lado, las muestras de frotis bucales pueden requerir un protocolo de PCR mejorado para sexar a todos los individuos. Discutimos el uso de hisopos bucales frente a la toma de muestras de sangre como una forma de obtener ADN en relación con los objetivos de la investigación y la minimización del estrés y los efectos nocivos.—Cambrone, C., Motreuil, S., Reyes, F.O., Landestroy, M.A., Cézilly,","PeriodicalId":55571,"journal":{"name":"Ardeola-International Journal of Ornithology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86311661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monitoring Abundance and Distribution of Northern Gannets Morus bassanus in Western Iberian Waters in Autumn by Aerial Surveys","authors":"Hélder Araújo, P. Rodrigues, Jorge Bastos-Santos, M. Ferreira, A. Pereira, J. Martínez-Cedeira, J. Vingada, C. Eira","doi":"10.13157/arla.69.2.2022.ra1","DOIUrl":"https://doi.org/10.13157/arla.69.2.2022.ra1","url":null,"abstract":"Summary. Several North Atlantic breeding seabirds, such as the Northern Gannet Morus bassanus, use Western Iberian Waters for wintering and migration. In this study, we aimed at producing absolute population estimates of post-breeding Gannets and evaluating the importance of the study area within the species' migration range. We performed six aerial surveys in September and/or October each year between 2010 and 2015, covering 74,840 km2 in total. Using line transect methodology, 3,672 Gannet sightings were recorded along 10,496.3 nautical miles (nm). Immature individuals and adults comprised approximately 87% of all sightings. Using Distance sampling, overall abundance was estimated at 89,930 birds, ranging from 58,010 individuals in 2014 to 128,140 in 2015. The highest densities per sector areas were recorded in the North and Centre sectors whereas the lowest densities were registered in the Galicia sector, the Spanish region within the study area. Gannets were mostly present in shallow shelf waters of the continental shelf, particularly between 3 and 20 nautical miles offshore. Habitat suitability models for Gannets in the study area were tested using several eco-geographical variables and chlorophyll concentrations were found to contribute most to explaining annual Gannet occurrence probabilities. A global interannual spatial analysis demonstrated the core areas for conservation of the Northern Gannet in Western Iberian Waters. Moreover, our results demonstrate that Western Iberian waters are used by almost 10% of the global Northern Gannet population, corroborating the existence of seabird hotspots during the non-breeding period, along migration corridors and at their wintering grounds.—Araújo, H., Correia Rodrigues, P., Bastos-Santos, J., Ferreira, M., Pereira, A., Martínez-Cedeira, J., Vingada, J. & Eira, C. (2022). Monitoring abundance and distribution of Northern Gannets Morus bassanus in Western Iberian Waters in autumn by aerial surveys. Ardeola, 69: 179-202.","PeriodicalId":55571,"journal":{"name":"Ardeola-International Journal of Ornithology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86058479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PHD-Dissertation Reviews in Ornithology (2020-2021 Academic Year)","authors":"F. Valera","doi":"10.13157/arla.69.1.2022.ph","DOIUrl":"https://doi.org/10.13157/arla.69.1.2022.ph","url":null,"abstract":"This section includes the abstracts of some of the PhD-Dissertations submitted in Spain during the 2020-2021 academic year as well as some others not published in earlier volumes of Ardeola. They are in alphabetical order by University where they were presented and, then, by year and alphabetical order of the author's surname. This section also includes a link to access the full version of the reviewed thesis when available.","PeriodicalId":55571,"journal":{"name":"Ardeola-International Journal of Ornithology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76358565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Migratory Pathways, Stopover Locations and Wintering Grounds of Southern Spanish Eurasian Scops Owls Otus scops","authors":"J. Avilés, Juan Rodríguez-Ruiz, Á. Cruz-Miralles, J. M. Abad-Gómez, D. Parejo","doi":"10.13157/arla.69.1.2022.sc2","DOIUrl":"https://doi.org/10.13157/arla.69.1.2022.sc2","url":null,"abstract":"Summary. Little is known about the migration and wintering distribution of Eurasian Scops Owls Otus scops. We deployed GPS-loggers on breeding Scops Owls from a southern Spanish population to analyse migratory routes and migration timing of this trans-Saharan migrant. Tag deployment had no short- or long-term effects on Scops Owls. Individuals followed rapid autumn and spring migrations along the coasts of Morocco and Western Sahara and the western edge of the Sahara desert. South Spanish breeding Scops Owls wintered across a large area of West Africa; within Mauritania, Senegal, Mali, Gambia, Guinea and Sierra Leone, where they stayed apart from one another for 4-5 months. Wintering sites were primarily in tree-covered habitats suggesting that these are important for Scops Owl conservation year-round.—Avilés, J.M., Rodríguez-Ruiz, J., Cruz-Miralles, Á., Abad-Gómez, J.M. & Parejo, D. (2022). Migratory pathways, stopover locations and wintering grounds of southern Spanish Eurasian Scops Owls Otus scops. Ardeola, 69: 129-139.","PeriodicalId":55571,"journal":{"name":"Ardeola-International Journal of Ornithology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81167648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sección Bibliográfica","authors":"José Luis Copete","doi":"10.13157/arla.69.1.2022.br","DOIUrl":"https://doi.org/10.13157/arla.69.1.2022.br","url":null,"abstract":"La Sección Bibliográfica de Ardeola publica reseñas de libros publicados recientemente. Estas reseñas se realizan desinteresadamente por un conjunto de colaboradores. Las reseñas son normalmente solicitadas por los editores a los colaboradores, aunque otras adicionales pueden ser consideradas para su publicación. Las reseñas expresan las opiniones de los revisores, de modo que no reflejan necesariamente la opinión de los editores o de SEO/BirdLife.","PeriodicalId":55571,"journal":{"name":"Ardeola-International Journal of Ornithology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82121502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"No Bird Database is Perfect: Citizen Science and Professional Datasets Contain Different and Complementary Biodiversity Information","authors":"Sofía Galván, R. Barrientos, Sara Varela","doi":"10.13157/arla.69.1.2022.ra6","DOIUrl":"https://doi.org/10.13157/arla.69.1.2022.ra6","url":null,"abstract":"Summary. Citizen science has become a powerful tool for collecting big data on biodiversity. However, concerns have been raised about potential biases in these new datasets. We aimed to test whether citizen science bird databases have more biases than professional scientific databases. Our hypotheses were 1) citizen science databases will have more data on “easy to spot” species, that are widely distributed and have large body sizes; whereas 2) professional databases will have more endangered species and species of special interest for research. We analysed six Spanish bird databases: three professional, two citizen science and one mixed database. Our results show that, in general, occurrences in citizen science databases are better explained by the studied variables than professional databases, but no clear differences were found when analysed individually. Both citizen science and professional databases contain invaluable information on biodiversity but every database comes with a particular history and its stored data is the result of years of field sampling with heterogeneous goals, sampling methods and sampling effort. Consequently, raw observations should not be used directly as an ideal survey of the distribution or abundance of birds. We need to uncover these biases and develop new methods to properly incorporate the extensive and heterogeneous biodiversity data that is readily available to research.—Galván, S., Barrientos, R. & Varela, S. (2022). No bird database is perfect: citizen science and professional datasets contain different and complementary biodiversity information. Ardeola, 69: 97-114.","PeriodicalId":55571,"journal":{"name":"Ardeola-International Journal of Ornithology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79289754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}