Camachuelo trompetero – Bucanetes githagineus (Lichtenstein, 1823)

Aves - Orden Passeriformes - Familia Fringillidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/.A comprehensive review of the natural history of the Trumpeter Finch Bucanetes githagineus in Spain.Peer reviewe

Wildlife collisions put a dent in road safety

info:eu-repo/semantics/publishedVersio

Patrones ecológicos en poblaciones periféricas de un ave de ecosistemas subdesérticos, el camachuelo trompetero "bucanetes githagineus"

Esta tesis se enmarca en el campo de la Biogeografía y su objetivo general es el estudio de patrones ecológicos en distintos tipos de poblaciones periféricas, usando como modelo un ave de ecosistemas subdesérticos, el camachuelo trompetero Bucanetes githagineus. Se han estudiado dos tipos de poblaciones periféricas: la primera se trata de una población en expansión y de reciente asentamiento en el sureste peninsular. La segunda habita las islas orientales del archipiélago canario y se encuentra aparentemente estable. Tras esclarecer las relaciones entre ambas poblaciones periféricas y su presumible población fuente, situada en el noroeste del continente africano, se abordan diversas hipótesis biogeográficas que atañen tanto a la especie de estudio en sí (ej. su morfología), como a sus parásitos y a su biología

No bird database is perfect: citizen science and professional datasets contain different and complementary biodiversity Information

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. 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: 97-114La ciencia ciudadana se ha convertido en una poderosa herramienta para recopilar datos sobre biodiversidad. Sin embargo, a pesar de su disponibilidad para ser utilizados en investigaciones científicas, sus posibles sesgos se encuentran bajo continuo debate. Por ello, en este trabajo pretendemos comprobar si estas bases de datos sobre avifauna de España presentan mayores sesgos que aquellas científico-profesionales. Nuestras hipótesis son: 1) las bases de datos ciudadanas recogerán un mayor número de aves “fáciles de detectar” (ampliamente distribuidas y con mayores tamaños corporales), mientras que 2) las bases de datos profesionales recogerán preferentemente especies en peligro de extinción o con algún interés científico específico. Para comprobarlo, analizamos seis bases de datos: tres profesionales, dos ciudadanas y una mixta. Nuestros resultados mostraron que, en general, las variables estudiadas explican mejor las observaciones de las bases de datos ciudadanas en comparación con aquellas de las bases de datos profesionales, aunque no se encontraron diferencias claras cuando se analizaron individualmente. Así, tanto las bases de datos ciudadanas como las profesionales poseen una información muy valiosa sobre biodiversidad, aunque cada una de ellas posee una historia particular y su información es el resultado de años de muestreo con objetivos, métodos y esfuerzos heterogéneos. En consecuencia, sus observaciones no deben utilizarse directamente como un reflejo ideal de la distribución o la abundancia de estas aves. Así, es necesario detectar estos sesgos y desarrollar nuevos métodos para incorporar esta gran cantidad de datos sobre biodiversidad en futuras investigaciones. Galván, S., Barrientos, R. y Varela, S. (2022). Las bases de datos de ciencia ciudadana y profesionales poseen información diferente y complementaria sobre la avifauna. Ardeola, 69: 97-11

Gloria Luz Godínez, Pina Bausch. Cuerpo y danza-teatro

Gloria Luz Godínez, Pina Bausch. Cuerpo y danza-teatro. México: Paso de Gato, 2017. 240 pages. ISBN 978-607-8439-82-9. Gloria Luz Godínez, Pina Bausch. Cuerpo y danza-teatro. México: Paso de Gato, 2017. 240 páginas. ISBN 978-607-8439-82-9.&nbsp

Are road-kills representative of wildlife community obtained from atlas data?

Systematic road-kill surveys are useful to study the impact of roads on wildlife. However, they are time-and budget-consuming, so the use of non-systematic data in road ecology is currently gaining popularity (for instance, by environmental consultants). Some data sources such as atlases (i.e., compilations of species records from a given region), which can include non-systematic and citizen-science data, can entail several intrinsic biases, mostly due to uneven sampling effort and uneven species detectability. Here, we tested this prediction by verifying if data from the Spanish Atlas of Terrestrial Mammals mirror the road-kill patterns obtained from our own systematic roadkill surveys. We focused on the Mediterranean mesocarnivore guild due to its easy identification by citizens involved in atlas-data collection. We tested if the relative abundance of each species, their richness and diversity obtained from Atlas and our systematic surveys were related, using linear models, while controlling for human population and road density (potentially confounding effects). We further compared the patterns of species abundance obtained from both sources. Our results highlight that road-kill patterns do not mirror the Atlas patterns for the three metrics evaluated. This is probably due to survey biases in typical data from wildlife atlases. When analysing species individually, we found that some species are road-killed more (or less) than expected in relation to their abundance in atlas records. These results are probably due to species-specific ecological or behavioural traits such as species morphology or species behaviour when facing the road. We suggest that abundance from atlas data should not be used as a proxy for road-kill rates.info:eu-repo/semantics/publishedVersio

The lost road: Do transportation networks imperil wildlife population persistence?

The global road network is rapidly growing associated with human economic development. This growthalso entails a high toll for biodiversity, with several well-documented negative impacts on differentspecies. However, there is still a great lack of knowledge about the effects of roads on the persistenceof wildlife populations. Here, we aimed to summarize our current knowledge on this topic, based onsystematic reviews. We found that only a small proportion of studies (8%) focused on the effects of roadson population persistence. Most of these studies were about large mammals and were performed in high-income countries. Furthermore, these works studied only 2% of those species identified by the IUCN RedList as threatened by roads. Overall, our results show that we are far from understanding how roads affectthe long-term viability of wildlife populations inhabiting road-effect zones. Addressing this challenge willrequire modifying our conceptual perspective, from short-term to long-term studies, from single roadsections to focusing the landscape scale, and strive to obtain empirical data to support sound analysesto assess how road impacts affect the survival of wildlife populations, namely with information requiredto perform approaches such as population viability analyses. We highlight some key studies from ourreviews that have addressed this global conservation concern with population-oriented approaches.info:eu-repo/semantics/publishedVersio

Las familias Halophilosciidae y Philosciidae en el Archipiélago Canario (Crustácea: Isopoda: Oniscidea)

En este trabajo se exponen los resultados de los muestreos realizados en el Archipiélago Canario entre los años 1986-1990 concernientes a las familias Halophilosciidae y Philosciidae. En total se han encontrado seis especies; tres e ellas, Littorophiloscia culebrae, Chaetophiloscia sicula y Stenophiloscia zosterae suponen primeras citas de los géneros en Canarias; dos de ellas primeras citas del género para la Macaronesia y una es la primera cita del género refleja la heterogeneidad de su poblamiento, donde encontramos componentes faunísticos bien individualizados de procedencia centroamericana, norte-africana y mediterránea. Por último, se incluye una clave para la identificación de las especies comentadas en el trabajo.This paper offers the results of sampling in the Canary islands between 186-1990 about Philosciidae and Halophilosciidae families. Six species belowing to this families have been found. Three of them, Littorophiloscia culebrae, Chaetophiloscia sicula and Stenophiloscia zosterae are the first records of genus in the Canary Archipelago, two of them are first records in the Macaronesian Archipelagos, and one of them are the first records in the geneous faunal components coming from central America, north Africa and the mediterranean area. At last, we include a key of identification of all species commented

Habitat fragmentation influences nestling growth in Mediterranean blue and great tits

In patchy forest areas, the size of the forest patch where birds breed has a strong influence on their breeding success. However, the proximate effects contributing to lowering the breeding success in small forest patches remain unclear; and a shortage of crucial resources in those forest patches has been suggested to account in some degree for this failure. With the aim to further investigate this issue, we have monitored the breeding cycle of blue and great tits in three ‘large’ forest patches (ranging between 26.5-29.6 ha) and twelve ‘small’ forest patches (ranging between 1.1-2.1 ha) in a Mediterranean area in central Spain, during three years (2011-2013). We also recorded the nestling diet inside the nest-boxes with the aid of handy-cams. Only males significantly differed between forest patch size categories; being on average younger and with better body condition in small patches for great and blue tits respectively. Reproductive traits did not vary between forest patch size categories, but the body condition of blue tit nestlings and the size of great tit nestlings did, being significantly better and larger respectively in large forest patches. The recruitment rate of blue tit nestlings was also higher in large patches. Regarding nestling diet, blue tits did not differ but great tits did, delivering a larger amount of caterpillars in large forest patches. Most variation in the reproductive traits occurred between years, probably due to annual differences in environmental conditions. This study suggests that food supply could be limiting the breeding success of birds above all in small patches, but also in large patches under particular environmental conditions.Funding was provided by Ministerio de Ciencia e Innovación (CGL2010-21933-C02-01) and Junta de Comunidades de Castilla-La Mancha and European Social Fund (POIC10-0269-7632). ESF and JBE are both supported by a doctoral scholarship from Junta de Comunidades de Castilla-La Mancha-European Social Fund. RB benefited from the JCCM-FSE 2007/2013 postdoctoral program and from a “Juan de la Cierva” post-doctoral contract (JCI-2011-10945) and ESD enjoyed a pre-doctoral fellowship from Ministerio de Ciencia e Innovación.Peer reviewe