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José Antonio - One of the best experts on this subject based on the ideXlab platform.
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Excursión desde Valladolid a Medina del Campo, pasando por Simancas, Tordesillas y Rueda, el 7 de abril de 1952
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo desde Medina del Campo a Valladolid, pasando por Simancas, Tordesillas y Rueda, el 7 de abril de 1952, de la que se anotaron observaciones sobre insectos coleópteros, probablemente de las familias Tenebrionidae y Gryllotalpidae, y las siguientes aves: Buteo buteo (Busardo ratonero), Ciconia ciconia (Cigüeña blanca), Columba sp. (Paloma), Corvus frugilegus (Graja), Corvus monedula (Grajilla, llamada Coloeus por el autor), Falco naumanni (Cernícalo primilla), Falco tinnunculus (Cernícalo vulgar), Galerida sp. (Cogujada), Gallinula chloropus (Gallineta común), Hirundo rustica (Golondrina común), Larus sp. (Gaviota), Milvus migrans (Milano negro), Otis tarda (Avutarda común), "Paloma torrera" (Columba sp.), Petronia petronia (Gorrión chillón), Pica pica (Urraca, llamada "marica" por el autor), Saxicola torquata (Tarabilla común), Serinus serinus (Verdecillo), Sturnus unicolor (Estornino negro) y Sturnus sp. (Estornino).Field trip from Medina del Campo to Valladolid, passing through Simancas, Tordesillas and Rueda, the 7th of April of 1952, of which there were noted observations about some coleopterous insects, belonging probably of the Tenebrionidae and Gryllotalpidae families, and the following birds: Buteo buteo (Common Buzzard), Ciconia ciconia (White Stork), Columba sp. (Pigeon), Corvus frugilegus (Rook), Corvus monedula (Eurasian Jackdaw, refered as Coloeus by the author), Falco naumanni (Lesser Kestrel), Falco tinnunculus (Common Kestrel), Galerida sp. (Lark), Gallinula chloropus (Common Moorhen), Hirundo rustica (Barn Swallow), Larus sp. (Gull), Milvus migrans (Black Kite), Otis tarda (Great Bustard), Petronia petronia (Rock Sparrow), Pica pica (Black-billed Magpie), Saxicola torquata (African Stonechat), Serinus serinus (European Serin), Sturnus unicolor (Spotless Starling) and Sturnus sp. (Starling)
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Salida de campo desde Valladolid a Toro (Zamora), pasando por Simancas y otras localidades de Valladolid, el 19 de junio de 1952
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo desde Valladolid a Toro (Zamora), pasando por Simancas, Tordesillas, Morales de Campos y Villaester, en Valladolid, el 19 de junio de 1952, de la que se anotaron observaciones sobre coleópteros, acrídidos (Orthoptera), cangrejos (sin determinar la especie) y las siguientes aves: Apus sp. (Vencejo), Athene noctua (Mochuelo europeo), Ciconia ciconia (Cigüeña blanca), Clamator glandarius (Críalo europeo), Corvus corax (Cuervo), Corvus monedula (Grajilla, llamada Coloeus por el autor), Falco naumanni (Cernícalo primilla), Falco tinnunculus (Cernícalo vulgar), Hirundo sp. (Golondrina), Lanius meridionalis (Alcaudón real, llamado L.excubitor por el autor), Milvus migrans (Milano negro), Oenanthe sp. (Collalba), Passer montanus (Gorrión molinero) and Sturnus sp. (Estornino).Field trip from Valladolid to Toro (Zamora), passing through Simancas, Tordesillas, Morales de Campos and Villasester, at Valladolid, the 19th of June of 1952, of which there were noted observations about coleopters, acridids (Orthoptera), freshwater crayfishes (without identifying the species) and the following birds: Apus sp. (Swift), Athene noctua (Little Owl), Ciconia ciconia (White Stork), Clamator glandarius (Great Spotted Cuckoo), Corvus corax (Common Raven), Corvus monedula (Eurasian Jackdaw, refered as Coloeus by the author), Falco naumanni (Lesser Kestrel), Falco tinnunculus (Common Kestrel), Hirundo sp. (Swallow), Lanius meridionalis (Great Grey Shrike, refered as L.excubitor by the author), Milvus migrans (Black Kite), Oenanthe sp. (Wheatear), Passer montanus (Eurasian Tree Sparrow) and Sturnus sp. (Starling)
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Salida de campo a La Capeliére (La Camarga, Francia) el 16 de mayo de 1954
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a La Capeliére, en reserva natural de La Camarga (Provenza, Francia), el 16 de mayo de 1954, de la que se anotaron observaciones sobre peces (cuyos nombres comunes aparecen en francés), el anfibio Pelophylax esculentus (Rana verde europea, llamada Rana sculenta o R.esculenta ridibunda por el autor), el reptil Natrix maura (Culebra viperina, llamada Tropidonotus viperinus por el autor), y las siguientes aves: Apus sp. (Vencejo), Ardea purpurea (Garza imperial), Asio otus (Búho chico), Chlidonias hybrida (Fumarel cariblanco), Delichon urbica (Avión común, llamado Chelidon urbica por el autor), Egretta garzetta (Garceta común), Fulica sp. (Focha), Ixobrychus minutus (Avetorillo común), Larus argentatus (Gaviota argéntea), Merops apiaster (Abejaruco europeo), Miliaria calandra (Triguero, llamada Emberiza calandra por el autor), Milvus migrans (Milano negro), Nycticorax nycticorax (Martinete común), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Podiceps cristatus (Somormujo lavanco), "St. communis", Sterna albifrons (Charrancito común) y Tachybaptus ruficollis (Zampullín común, llamado Podiceps ruficollis por el autor).Field trip to La Capeliére, at the nature reserve of La Camarga (Provenza, France), the 16th of May of 1954, of which there were noted observations about fishes (whose common names appear on French), the amphibian Pelophylax esculentus (Edible Frog, refered as Rana sculenta or R.esculenta ridibunda by the author), the reptil Natrix maura (Viperine Snake, refered as Tropidonotus viperinus by the author), and the following birds: Apus sp. (Swift), Ardea purpurea (Purple Heron), Asio otus (Long-eared Owl), Chlidonias hybrida (Whiskered Tern), Delichon urbica (House Martin, refered as Chelidon urbica by the author), Egretta garzetta (Little Egret), Fulica sp. (Coot), Ixobrychus minutus (Little Bittern), Larus argentatus (Herring Gull), Merops apiaster (European Bee-eater), Miliaria calandra (Corn Bunting, refered as Emberiza calandra by the author), Milvus migrans (Black Kite), Nycticorax nycticorax (Black-crowned Night Heron), Pica pica (Black-billed Magpie), Podiceps cristatus (Great Crested Grebe), "St. communis", Sterna albifrons (Little Tern) and Tachybaptus ruficollis (Little Greebe, refered as Pocideps ruficollis by the author)
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Salidas de campo en la provincia de Valladolid durante julio de 1948
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salidas de campo dentro de la provincia de Valladolid durante el mes de julio de 1948, de las que anotaron observaciones sobre las siguientes aves: Acrocephalus arundinaceus (Carricero tordal), Caprimulgus sp. (Chotacabras), Carduelis carduelis (Jilguero), Carduelis chloris (Verderón común), Ciconia ciconia (Cigüeña blanca), Cyanistes caeruleus (Herrerillo común), Emberiza cirlus (Escribano soteño), Falco subbuteo (Alcotán), Falco tinnunculus (Cernícalo vulgar), Fringilla coelebs (Pinzón vulgar), Hippolais polyglotta (Mosquitero musical), Miliaria calandra (Triguero), Milvus migrans (Milano negro), Motacilla alba (Lavandera blanca), Motacilla cinerea (Lavandera cascadeña), Motacilla flava (Lavandera boyera), Oriolus oriolus (Oropéndola), Parus major (Carbonero común), Phylloscopus trochilus (Mosquitero musical), Pica pica (Urraca), Serinus serinus (Verdecillo), Streptopelia turtur (Tórtola común), Sturnus unicolor (Estornino negro), Sylvia borin (Curruca mosquitera), Sylvia communis (Curruca zarcera) y Upupa epops (Abubilla).Field trips within the province of Valladolid during July of 1948 of which there were noted observations about the following birds: Acrocephalus arundinaceus (Great Reed-warbler), Caprimulgus sp. (Nightjar), Carduelis carduelis (European Goldfinch), Carduelis chloris (European Greenfinch), Ciconia ciconia (White Stork), Cyanistes caeruleus (Blue Tit), Emberiza cirlus (Cirl Bunting), Falco subbuteo (Eurasian Hobby), Falco tinnunculus (Common Kestrel), Fringilla coelebs (Chaffinch), Hippolais polyglotta (Melodius Warbler), Miliaria calandra (Corn Bunting), Milvus migrans (Black Kite), Motacilla alba (White Wagtail), Motacilla cinerea (Grey Wagtail), Motacilla flava (Yellow Wagtail), Oriolus oriolus (Eurasian Golden-oriole), Parus major (Great Tit), Phylloscopus trochilus (Willow Warbler), Pica pica (Black-billed Magpie), Serinus serinus (European Serin), Streptopelia turtur (European Turtle-dove), Sturnus unicolor (Spotless Starling), Sylvia borin (Garden Warbler), Sylvia communis (Common Whitethroat) and Upupa epops (Eurasia Hoopoe)
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Salida de campo a Monte Blanco (Valladolid) el 27 de abril de 1952
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a Monte Blanco, en Valladolid, la mañana del 27 de abril de 1952, de la que se anotaron observaciones sobre las siguientes aves: Apus sp. (Vencejo), Buteo buteo (Busardo ratonero), Caprimulgus sp. (Chotacabras), Carduelis carduelis (Jilguero), Carduelis chloris (Verderón común), Clamator glandarius (Críalo europeo), Corvus corone (Corneja negra), Cyanopica cooki (Rabilargo, llamado "Charro" y C. cyana por el autor), Falco tinnunculus (Cernícalo vulgar), Fringilla sp. (Pinzón), Galerida sp. (Cogujada), Hieraaetus pennatus (Águila calzada), Hippolais sp. (Zarcero), Jynx torquilla (Torcecuello Euroasiático), Lanius senator (Alcaudón común), Lullula arborea (Totovía), Luscinia megarhynchos (Ruiseñor común), Merops apiaster (Abejaruco europeo), Milvus migrans (Milano negro), Oenanthe oenanthe (Collalba gris), Perdiz (Alectoris sp. o Perdix sp.), Petronia petronia (Gorrión chillón), Phoenicurus sp. (Colirrojo), Pica pica (Urraca, llamada "marica" por el autor), Serinus serinus (Verdecillo), Streptopelia sp. (Tórtola), Sturnus unicolor (Estornino negro), Sylvia cantillans (Curruca carrasqueña), Sylvia communis (Curruca zarcera), Sylvia undata (Curruca rabilarga), Troglodytes troglodytes (Chochín), Turdus viscivorus (Zorzal charlo) y Upupa epops (Abubilla). Incluye un pequeño dibujo a bolígrafo.Field trip to Monte Blanco, at Valladolid, the morning of the 27th of April of 1952, of which there were noted observations about the following birds: Apus sp. (Swift), Buteo buteo (Common Buzzard), Caprimulgus sp. (Nightjar), Carduelis carduelis (European Goldfinch), Carduelis chloris (European Greenfinch), Clamator glandarius (Great Spotted Cuckoo), Corvus corone (Carrion Crow), Cyanopica cooki (Azure-winged Magpie, refered as C. cyana by the author), Falco tinnunculus (Common Kestrel), Fringilla sp. (Chaffinch), Galerida sp. (Lark), Hieraaetus pennatus (Booted Eagle), Hippolais sp. (Warbler), Jynx torquilla (Eurasian Wryneck), Lanius senator (Woodchat Shrike), Lullula arborea (Wood Lark), Luscinia megarhynchos (Common Nightingale), Merops apiaster (European Bee-eater), Milvus migrans (Black Kite), Oenanthe oenanthe (Northern Wheatear), Partridge (Alectoris sp. or Perdix sp.), Petronia petronia (Rock Sparrow), Phoenicurus sp. (Redstart), Pica pica (Black-billed Magpie), Serinus serinus (European Serin), Streptopelia sp. (Turtle-dove), Sturnus unicolor (Spotless Starling), Sylvia cantillans (Subalpine Warbler), Sylvia communis (Common Whitethroat), Sylvia undata (Dartford Warbler), Troglodytes troglodytes (Winter Wren), Turdus viscivorus (Mistle Thrush) and Upupa epops (Eurasia Hoopoe). A little pen illustration is also included
Fabrizio Sergio - One of the best experts on this subject based on the ideXlab platform.
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when and where mortality occurs throughout the annual cycle changes with age in a migratory bird individual vs population implications
Scientific Reports, 2019Co-Authors: Fabrizio Sergio, Alessandro Tanferna, Julio Blas, Guillermo Blanco, Giacomo Tavecchia, Fernando HiraldoAbstract:The annual cycle of most animals is structured into discrete stages, such as breeding, migration and dispersal. While there is growing appreciation of the importance of different stages of an organism’s annual cycle for its fitness and population dynamics, almost nothing is known about if and how such seasonal effects can change through a species lifespan. Here, we take advantage of the opportunity offered by a long-term satellite/GPS-tracking study and a reliable method of remote death-detection to show that certain stages of both the annual and life cycle of a migratory long-lived raptor, the Black Kite Milvus migrans, may represent sensitive bottlenecks for survival. In particular, migratory journeys caused bursts of concentrated-mortality throughout life, but the relative importance of stage-specific survival changed with age. On the other hand, the balance between short-stages of high mortality and long-stages of low mortality made population-growth similarly dependent on all portions of the annual cycle. Our results illustrate how the population dynamics of migratory organisms can be inextricably linked to ecological pressures balanced over multiple stages of the annual cycle and thus multiple areas of the globe, suggesting the frequent need for challenging conservation strategies targeting all portions of a species year-round range.
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Tables S1 - S2 and Appendix S1 from The population density of an urban raptor is inextricably tied to human cultural practices
2019Co-Authors: Nishant Kumar, Urvi Gupta, Yadvendradev V Jhala, Qamar Qureshi, Andrew G Gosler, Harsha Malhotra, Fabrizio SergioAbstract:Table S1: Landscape and human variables used to characterize each study plot in which we surveyed the population density of Black Kite breeding pairs within the city of Delhi (India). Variables were chosen on the basis of our knowledge of Kite ecology and of previous analyses of the factors that affect habitat preferences, breeding success and behavioural performance by Delhi Kites (Kumar et al. 2018a,b, 2019). These variables characterized each plot in terms of its landscape structure, food availability (local availability of organic garbage, access to Muslim ritual-subsidies, local density of humans walking in the streets), and nest-site availability. See the Study Area section for background details on the rationale underlying the choice of indicators of human refuse and ritual subsidies.; Table S2: Information on the population density of Black Kites and its predictor variables; Appendix S1: Spatial analysis of Black Kite densit
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integrating population connectivity into pollution assessment overwintering mixing reveals flame retardant contamination in breeding areas in a migratory raptor
Environmental Research, 2018Co-Authors: Guillermo Blanco, Fabrizio Sergio, Fernando Hiraldo, Alessandro Tanferna, Oscar Frias, Pablo Salinas, Damia Barcelo, Ethel EljarratAbstract:Determining the exposure and magnitude at which various pollutants are differentially assimilated at the breeding and non-breeding grounds of migratory wildlife is challenging. Here, the possibility of applying the migratory connectivity framework to understanding contamination in birds is illustrated by considering flame retardants in inviable eggs of a migratory raptor, the Black Kite (Milvus migrans). The occurrence and concentration of legacy and emerging compounds in eggs from the southeastern peri-urban area of Madrid city, central Spain, were compared with those from Donana National Park in southern Spain. A much higher occurrence and concentration of multiple polybrominated diphenyl ethers and Dechlorane 602 were found in Madrid than Donana, but the opposite patterns were found for Dechlorane Plus. Individuals from these and other breeding areas in western Europe showed a strong intermixing pattern over widespread wintering areas in Africa, as assessed by ringing recoveries and movements tracked by satellite devices. This diffuse migratory connectivity reveals breeding areas as the main contamination grounds. High contamination burdens sequestered in eggs point to rapid assimilation of these compounds before laying, associated with important emission sources in Madrid, especially landfills of partially incinerated urban refuse, and other anthropogenic operations. Diet composition regarding aquatic vs. terrestrial prey, and bioaccumulation and biomagnification processes are suggested to explain differential assimilation of some compounds, especially Dechlorane Plus in Donana, although a local emission source polluting this area cannot be ruled out. Insight from the migratory connectivity framework can help to disentangle large-scale patterns of contaminant uptake and refocus attention on key regions and potential causes of chemical hazards in declining migratory species and human populations.
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Variables measured during nest defense trials conducted at Black Kite nests within the city of Delhi (India).
2018Co-Authors: Nishant Kumar, Yadvendradev V Jhala, Qamar Qureshi, Andrew G Gosler, Fabrizio SergioAbstract:Variables measured during nest defense trials conducted at Black Kite nests within the city of Delhi (India).
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habitat selection by an avian top predator in the tropical megacity of delhi human activities and socio religious practices as prey facilitating tools
Urban Ecosystems, 2017Co-Authors: Nishant Kumar, Urvi Gupta, Yadvendradev V Jhala, Qamar Qureshi, Andrew G Gosler, Fabrizio SergioAbstract:Research in urban ecology is growing rapidly in response to the exponential growth of the urban environment. However, few studies have focused on tropical megacities, and on the interplay between predators’ habitat selection and human socio-economic aspects, which may mediate their resilience and coexistence with humans. We examined mechanisms of breeding habitat selection by a synanthropic raptor, the Black Kite Milvus migrans, in Delhi (India) where Kites mainly subsist on: (1) human refuse and its associated prey-fauna, and (2) ritualised feeding of Kites, particularly practised by Muslims. We used mixed effects models to test the effect of urban habitat configuration and human practices on habitat selection, site occupancy and breeding success. Kite habitat decisions, territory occupancy and breeding success were tightly enmeshed with human activities: Kites preferred areas with high human density, poor waste management and a road configuration that facilitated better access to resources provided by humans, in particular to Muslim colonies that provided ritual subsidies. Furthermore, Kites bred at ‘clean’ sites with less human refuse only when close to Muslim colonies, suggesting that the proximity to ritual-feeding sites modulated the suitability of other habitats. Rather than a nuisance to avoid, as previously portrayed, humans were a keenly-targeted foraging resource, which tied a predator’s distribution to human activities, politics, history, socio-economics and urban planning at multiple spatio-temporal scales. Many synurbic species may exploit humans in more subtle and direct ways than was previously assumed, but uncovering them will require greater integration of human socio-cultural estimates in urban ecological research.
Valverde Gómez - One of the best experts on this subject based on the ideXlab platform.
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Excursión desde Valladolid a Medina del Campo, pasando por Simancas, Tordesillas y Rueda, el 7 de abril de 1952
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo desde Medina del Campo a Valladolid, pasando por Simancas, Tordesillas y Rueda, el 7 de abril de 1952, de la que se anotaron observaciones sobre insectos coleópteros, probablemente de las familias Tenebrionidae y Gryllotalpidae, y las siguientes aves: Buteo buteo (Busardo ratonero), Ciconia ciconia (Cigüeña blanca), Columba sp. (Paloma), Corvus frugilegus (Graja), Corvus monedula (Grajilla, llamada Coloeus por el autor), Falco naumanni (Cernícalo primilla), Falco tinnunculus (Cernícalo vulgar), Galerida sp. (Cogujada), Gallinula chloropus (Gallineta común), Hirundo rustica (Golondrina común), Larus sp. (Gaviota), Milvus migrans (Milano negro), Otis tarda (Avutarda común), "Paloma torrera" (Columba sp.), Petronia petronia (Gorrión chillón), Pica pica (Urraca, llamada "marica" por el autor), Saxicola torquata (Tarabilla común), Serinus serinus (Verdecillo), Sturnus unicolor (Estornino negro) y Sturnus sp. (Estornino).Field trip from Medina del Campo to Valladolid, passing through Simancas, Tordesillas and Rueda, the 7th of April of 1952, of which there were noted observations about some coleopterous insects, belonging probably of the Tenebrionidae and Gryllotalpidae families, and the following birds: Buteo buteo (Common Buzzard), Ciconia ciconia (White Stork), Columba sp. (Pigeon), Corvus frugilegus (Rook), Corvus monedula (Eurasian Jackdaw, refered as Coloeus by the author), Falco naumanni (Lesser Kestrel), Falco tinnunculus (Common Kestrel), Galerida sp. (Lark), Gallinula chloropus (Common Moorhen), Hirundo rustica (Barn Swallow), Larus sp. (Gull), Milvus migrans (Black Kite), Otis tarda (Great Bustard), Petronia petronia (Rock Sparrow), Pica pica (Black-billed Magpie), Saxicola torquata (African Stonechat), Serinus serinus (European Serin), Sturnus unicolor (Spotless Starling) and Sturnus sp. (Starling)
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Salida de campo desde Valladolid a Toro (Zamora), pasando por Simancas y otras localidades de Valladolid, el 19 de junio de 1952
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo desde Valladolid a Toro (Zamora), pasando por Simancas, Tordesillas, Morales de Campos y Villaester, en Valladolid, el 19 de junio de 1952, de la que se anotaron observaciones sobre coleópteros, acrídidos (Orthoptera), cangrejos (sin determinar la especie) y las siguientes aves: Apus sp. (Vencejo), Athene noctua (Mochuelo europeo), Ciconia ciconia (Cigüeña blanca), Clamator glandarius (Críalo europeo), Corvus corax (Cuervo), Corvus monedula (Grajilla, llamada Coloeus por el autor), Falco naumanni (Cernícalo primilla), Falco tinnunculus (Cernícalo vulgar), Hirundo sp. (Golondrina), Lanius meridionalis (Alcaudón real, llamado L.excubitor por el autor), Milvus migrans (Milano negro), Oenanthe sp. (Collalba), Passer montanus (Gorrión molinero) and Sturnus sp. (Estornino).Field trip from Valladolid to Toro (Zamora), passing through Simancas, Tordesillas, Morales de Campos and Villasester, at Valladolid, the 19th of June of 1952, of which there were noted observations about coleopters, acridids (Orthoptera), freshwater crayfishes (without identifying the species) and the following birds: Apus sp. (Swift), Athene noctua (Little Owl), Ciconia ciconia (White Stork), Clamator glandarius (Great Spotted Cuckoo), Corvus corax (Common Raven), Corvus monedula (Eurasian Jackdaw, refered as Coloeus by the author), Falco naumanni (Lesser Kestrel), Falco tinnunculus (Common Kestrel), Hirundo sp. (Swallow), Lanius meridionalis (Great Grey Shrike, refered as L.excubitor by the author), Milvus migrans (Black Kite), Oenanthe sp. (Wheatear), Passer montanus (Eurasian Tree Sparrow) and Sturnus sp. (Starling)
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Salida de campo a La Capeliére (La Camarga, Francia) el 16 de mayo de 1954
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a La Capeliére, en reserva natural de La Camarga (Provenza, Francia), el 16 de mayo de 1954, de la que se anotaron observaciones sobre peces (cuyos nombres comunes aparecen en francés), el anfibio Pelophylax esculentus (Rana verde europea, llamada Rana sculenta o R.esculenta ridibunda por el autor), el reptil Natrix maura (Culebra viperina, llamada Tropidonotus viperinus por el autor), y las siguientes aves: Apus sp. (Vencejo), Ardea purpurea (Garza imperial), Asio otus (Búho chico), Chlidonias hybrida (Fumarel cariblanco), Delichon urbica (Avión común, llamado Chelidon urbica por el autor), Egretta garzetta (Garceta común), Fulica sp. (Focha), Ixobrychus minutus (Avetorillo común), Larus argentatus (Gaviota argéntea), Merops apiaster (Abejaruco europeo), Miliaria calandra (Triguero, llamada Emberiza calandra por el autor), Milvus migrans (Milano negro), Nycticorax nycticorax (Martinete común), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Podiceps cristatus (Somormujo lavanco), "St. communis", Sterna albifrons (Charrancito común) y Tachybaptus ruficollis (Zampullín común, llamado Podiceps ruficollis por el autor).Field trip to La Capeliére, at the nature reserve of La Camarga (Provenza, France), the 16th of May of 1954, of which there were noted observations about fishes (whose common names appear on French), the amphibian Pelophylax esculentus (Edible Frog, refered as Rana sculenta or R.esculenta ridibunda by the author), the reptil Natrix maura (Viperine Snake, refered as Tropidonotus viperinus by the author), and the following birds: Apus sp. (Swift), Ardea purpurea (Purple Heron), Asio otus (Long-eared Owl), Chlidonias hybrida (Whiskered Tern), Delichon urbica (House Martin, refered as Chelidon urbica by the author), Egretta garzetta (Little Egret), Fulica sp. (Coot), Ixobrychus minutus (Little Bittern), Larus argentatus (Herring Gull), Merops apiaster (European Bee-eater), Miliaria calandra (Corn Bunting, refered as Emberiza calandra by the author), Milvus migrans (Black Kite), Nycticorax nycticorax (Black-crowned Night Heron), Pica pica (Black-billed Magpie), Podiceps cristatus (Great Crested Grebe), "St. communis", Sterna albifrons (Little Tern) and Tachybaptus ruficollis (Little Greebe, refered as Pocideps ruficollis by the author)
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Salidas de campo en la provincia de Valladolid durante julio de 1948
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salidas de campo dentro de la provincia de Valladolid durante el mes de julio de 1948, de las que anotaron observaciones sobre las siguientes aves: Acrocephalus arundinaceus (Carricero tordal), Caprimulgus sp. (Chotacabras), Carduelis carduelis (Jilguero), Carduelis chloris (Verderón común), Ciconia ciconia (Cigüeña blanca), Cyanistes caeruleus (Herrerillo común), Emberiza cirlus (Escribano soteño), Falco subbuteo (Alcotán), Falco tinnunculus (Cernícalo vulgar), Fringilla coelebs (Pinzón vulgar), Hippolais polyglotta (Mosquitero musical), Miliaria calandra (Triguero), Milvus migrans (Milano negro), Motacilla alba (Lavandera blanca), Motacilla cinerea (Lavandera cascadeña), Motacilla flava (Lavandera boyera), Oriolus oriolus (Oropéndola), Parus major (Carbonero común), Phylloscopus trochilus (Mosquitero musical), Pica pica (Urraca), Serinus serinus (Verdecillo), Streptopelia turtur (Tórtola común), Sturnus unicolor (Estornino negro), Sylvia borin (Curruca mosquitera), Sylvia communis (Curruca zarcera) y Upupa epops (Abubilla).Field trips within the province of Valladolid during July of 1948 of which there were noted observations about the following birds: Acrocephalus arundinaceus (Great Reed-warbler), Caprimulgus sp. (Nightjar), Carduelis carduelis (European Goldfinch), Carduelis chloris (European Greenfinch), Ciconia ciconia (White Stork), Cyanistes caeruleus (Blue Tit), Emberiza cirlus (Cirl Bunting), Falco subbuteo (Eurasian Hobby), Falco tinnunculus (Common Kestrel), Fringilla coelebs (Chaffinch), Hippolais polyglotta (Melodius Warbler), Miliaria calandra (Corn Bunting), Milvus migrans (Black Kite), Motacilla alba (White Wagtail), Motacilla cinerea (Grey Wagtail), Motacilla flava (Yellow Wagtail), Oriolus oriolus (Eurasian Golden-oriole), Parus major (Great Tit), Phylloscopus trochilus (Willow Warbler), Pica pica (Black-billed Magpie), Serinus serinus (European Serin), Streptopelia turtur (European Turtle-dove), Sturnus unicolor (Spotless Starling), Sylvia borin (Garden Warbler), Sylvia communis (Common Whitethroat) and Upupa epops (Eurasia Hoopoe)
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Salida de campo a Monte Blanco (Valladolid) el 27 de abril de 1952
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a Monte Blanco, en Valladolid, la mañana del 27 de abril de 1952, de la que se anotaron observaciones sobre las siguientes aves: Apus sp. (Vencejo), Buteo buteo (Busardo ratonero), Caprimulgus sp. (Chotacabras), Carduelis carduelis (Jilguero), Carduelis chloris (Verderón común), Clamator glandarius (Críalo europeo), Corvus corone (Corneja negra), Cyanopica cooki (Rabilargo, llamado "Charro" y C. cyana por el autor), Falco tinnunculus (Cernícalo vulgar), Fringilla sp. (Pinzón), Galerida sp. (Cogujada), Hieraaetus pennatus (Águila calzada), Hippolais sp. (Zarcero), Jynx torquilla (Torcecuello Euroasiático), Lanius senator (Alcaudón común), Lullula arborea (Totovía), Luscinia megarhynchos (Ruiseñor común), Merops apiaster (Abejaruco europeo), Milvus migrans (Milano negro), Oenanthe oenanthe (Collalba gris), Perdiz (Alectoris sp. o Perdix sp.), Petronia petronia (Gorrión chillón), Phoenicurus sp. (Colirrojo), Pica pica (Urraca, llamada "marica" por el autor), Serinus serinus (Verdecillo), Streptopelia sp. (Tórtola), Sturnus unicolor (Estornino negro), Sylvia cantillans (Curruca carrasqueña), Sylvia communis (Curruca zarcera), Sylvia undata (Curruca rabilarga), Troglodytes troglodytes (Chochín), Turdus viscivorus (Zorzal charlo) y Upupa epops (Abubilla). Incluye un pequeño dibujo a bolígrafo.Field trip to Monte Blanco, at Valladolid, the morning of the 27th of April of 1952, of which there were noted observations about the following birds: Apus sp. (Swift), Buteo buteo (Common Buzzard), Caprimulgus sp. (Nightjar), Carduelis carduelis (European Goldfinch), Carduelis chloris (European Greenfinch), Clamator glandarius (Great Spotted Cuckoo), Corvus corone (Carrion Crow), Cyanopica cooki (Azure-winged Magpie, refered as C. cyana by the author), Falco tinnunculus (Common Kestrel), Fringilla sp. (Chaffinch), Galerida sp. (Lark), Hieraaetus pennatus (Booted Eagle), Hippolais sp. (Warbler), Jynx torquilla (Eurasian Wryneck), Lanius senator (Woodchat Shrike), Lullula arborea (Wood Lark), Luscinia megarhynchos (Common Nightingale), Merops apiaster (European Bee-eater), Milvus migrans (Black Kite), Oenanthe oenanthe (Northern Wheatear), Partridge (Alectoris sp. or Perdix sp.), Petronia petronia (Rock Sparrow), Phoenicurus sp. (Redstart), Pica pica (Black-billed Magpie), Serinus serinus (European Serin), Streptopelia sp. (Turtle-dove), Sturnus unicolor (Spotless Starling), Sylvia cantillans (Subalpine Warbler), Sylvia communis (Common Whitethroat), Sylvia undata (Dartford Warbler), Troglodytes troglodytes (Winter Wren), Turdus viscivorus (Mistle Thrush) and Upupa epops (Eurasia Hoopoe). A little pen illustration is also included
Fernando Hiraldo - One of the best experts on this subject based on the ideXlab platform.
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when and where mortality occurs throughout the annual cycle changes with age in a migratory bird individual vs population implications
Scientific Reports, 2019Co-Authors: Fabrizio Sergio, Alessandro Tanferna, Julio Blas, Guillermo Blanco, Giacomo Tavecchia, Fernando HiraldoAbstract:The annual cycle of most animals is structured into discrete stages, such as breeding, migration and dispersal. While there is growing appreciation of the importance of different stages of an organism’s annual cycle for its fitness and population dynamics, almost nothing is known about if and how such seasonal effects can change through a species lifespan. Here, we take advantage of the opportunity offered by a long-term satellite/GPS-tracking study and a reliable method of remote death-detection to show that certain stages of both the annual and life cycle of a migratory long-lived raptor, the Black Kite Milvus migrans, may represent sensitive bottlenecks for survival. In particular, migratory journeys caused bursts of concentrated-mortality throughout life, but the relative importance of stage-specific survival changed with age. On the other hand, the balance between short-stages of high mortality and long-stages of low mortality made population-growth similarly dependent on all portions of the annual cycle. Our results illustrate how the population dynamics of migratory organisms can be inextricably linked to ecological pressures balanced over multiple stages of the annual cycle and thus multiple areas of the globe, suggesting the frequent need for challenging conservation strategies targeting all portions of a species year-round range.
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integrating population connectivity into pollution assessment overwintering mixing reveals flame retardant contamination in breeding areas in a migratory raptor
Environmental Research, 2018Co-Authors: Guillermo Blanco, Fabrizio Sergio, Fernando Hiraldo, Alessandro Tanferna, Oscar Frias, Pablo Salinas, Damia Barcelo, Ethel EljarratAbstract:Determining the exposure and magnitude at which various pollutants are differentially assimilated at the breeding and non-breeding grounds of migratory wildlife is challenging. Here, the possibility of applying the migratory connectivity framework to understanding contamination in birds is illustrated by considering flame retardants in inviable eggs of a migratory raptor, the Black Kite (Milvus migrans). The occurrence and concentration of legacy and emerging compounds in eggs from the southeastern peri-urban area of Madrid city, central Spain, were compared with those from Donana National Park in southern Spain. A much higher occurrence and concentration of multiple polybrominated diphenyl ethers and Dechlorane 602 were found in Madrid than Donana, but the opposite patterns were found for Dechlorane Plus. Individuals from these and other breeding areas in western Europe showed a strong intermixing pattern over widespread wintering areas in Africa, as assessed by ringing recoveries and movements tracked by satellite devices. This diffuse migratory connectivity reveals breeding areas as the main contamination grounds. High contamination burdens sequestered in eggs point to rapid assimilation of these compounds before laying, associated with important emission sources in Madrid, especially landfills of partially incinerated urban refuse, and other anthropogenic operations. Diet composition regarding aquatic vs. terrestrial prey, and bioaccumulation and biomagnification processes are suggested to explain differential assimilation of some compounds, especially Dechlorane Plus in Donana, although a local emission source polluting this area cannot be ruled out. Insight from the migratory connectivity framework can help to disentangle large-scale patterns of contaminant uptake and refocus attention on key regions and potential causes of chemical hazards in declining migratory species and human populations.
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habitat selection by Black Kite breeders and floaters implications for conservation management of raptor floaters
Biological Conservation, 2013Co-Authors: Alessandro Tanferna, Fernando Hiraldo, Lidia Lopezjimenez, Julio Blas, Fabrizio SergioAbstract:Preserving large predators is important but challenging because these species are typically wide-ranging, select multiple habitats at different scales and often present spatial or habitat separation between the breeder and floater sectors of a population. In addition, most of our knowledge on raptor floaters’ habitat requirements comes from large solitary species, whose floaters often occupy temporary settlement areas spatially separate from breeding locations. Here, we examine space and habitat use by a loosely colonial, wetland-dependent raptor, the Black Kite (Milvus migrans), in a population where floaters co-exist with territory holders, enabling a direct comparison of their habitat preferences. The study was conducted in Donana National Park (South-Western Spain), a seasonally drying marshland currently surrounded by intensive agriculture and rice-fields. Intensive radio-tracking revealed that breeders and floaters selected and avoided the same habitats despite a radical, four-to-eight fold difference in their home-range dimensions: all Kites over-selected open habitats suitable for their aerial foraging modes and avoided woodland and farmland. These results suggest a continuum of raptor population structures ranging from solitary species whose floaters select different habitats than breeders and are concentrated in spatially separate settlement areas, to colonial and semi-social species whose floaters fully coexist with breeders with shared habitat preferences. Both extremes of this continuum will pose challenges for conservation management. In solitary species, special conservation efforts may be required to identify and manage temporary settlement areas, while in gregarious species, the larger ranges of floaters may expose them to different threats than breeders, whose occurrence and consequences may be subtle to identify.
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raptor nest decorations are a reliable threat against conspecifics
Science, 2011Co-Authors: Fabrizio Sergio, Alessandro Tanferna, Julio Blas, Guillermo Blanco, Lidia Lopez, Jesus A Lemus, Fernando HiraldoAbstract:Individual quality is often signaled by phenotypic flags, such as bright plumage patches in birds. Extended phenotype signals can similarly show quality, but in these cases the signals are external to the individual, often taking the form of objects scavenged from the environment. Through multiple manipulative experiments, we showed that objects used for nest decoration by a territorial raptor, the Black Kite (Milvus migrans), act as reliable threats to conspecifics, revealing the viability, territory quality, and conflict dominance of the signaler. Our results suggest that animal-built structures may serve as signaling devices much more frequently than currently recognized.
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desert locust outbreaks in the sahel resource competition predation and ecological effects of pest control
Journal of Applied Ecology, 2007Co-Authors: Jose A Sanchezzapata, Manuela G. Forero, Jose A Donazar, A Delgado, Olga Ceballos, Fernando HiraldoAbstract:Summary 1 The desert locust Schistocerca gregaria has been considered a major pest since ancient times, as locust swarms holding millions of insects move throughout the Sahel, northern Africa, Middle East and southern Mediterranean countries. Most research has focused on the biology of the species and the development of strategies in locust control, but little is known about the place of locust pulses within food webs in which domestic herbivores and European long-distance migratory birds are also involved. 2 We evaluated the role of desert locust outbreaks in the food webs of the Sahelian region. We analysed the potential resource competition with domestic herbivores and the response of a generalist predator by assessing its diet and foraging behaviour in relation to the availability of locusts. 3 Stable isotope analyses revealed that little trophic overlap exists between desert locusts that feed on trees and shrubs and nomadic livestock that feed on grasses in the Sahelian savanna grasslands. These results suggest low resource competition with the main human resources in regions with little agricultural development. In addition, during an outbreak that occurred in winter, desert locusts were consumed by resident and long-distance migrant birds. This accounted for significant changes in the diet and foraging strategies of wintering generalist predators such as the Black Kite Milvus migrans. 4 Synthesis and applications. Our results raise questions about the need for spraying locust swarms in areas where economic losses are scant and wintering populations of European trans-Saharan migrant birds are high. A deeper insight into the ecological and economical role of these outbreaks is urgently needed, together with a reassessment of desert locust control in the Sahel.
Sergio Fabrizio - One of the best experts on this subject based on the ideXlab platform.
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Integrating population connectivity into pollution assessment: Overwintering mixing reveals flame retardant contamination in breeding areas in a migratory raptor
'Elsevier BV', 2019Co-Authors: Blanco Guillermo, Tanferna Alessandro, Hiraldo F., Sergio Fabrizio, Frías Óscar, Salinas Pablo, Barceló Damià, Eljarrat EthelAbstract:Determining the exposure and magnitude at which various pollutants are differentially assimilated at the breeding and non-breeding grounds of migratory wildlife is challenging. Here, the possibility of applying the migratory connectivity framework to understanding contamination in birds is illustrated by considering flame retardants in inviable eggs of a migratory raptor, the Black Kite (Milvus migrans). The occurrence and concentration of legacy and emerging compounds in eggs from the southeastern peri-urban area of Madrid city, central Spain, were compared with those from Doñana National Park in southern Spain. A much higher occurrence and concentration of multiple polybrominated diphenyl ethers and Dechlorane 602 were found in Madrid than Doñana, but the opposite patterns were found for Dechlorane Plus. Individuals from these and other breeding areas in western Europe showed a strong intermixing pattern over widespread wintering areas in Africa, as assessed by ringing recoveries and movements tracked by satellite devices. This diffuse migratory connectivity reveals breeding areas as the main contamination grounds. High contamination burdens sequestered in eggs point to rapid assimilation of these compounds before laying, associated with important emission sources in Madrid, especially landfills of partially incinerated urban refuse, and other anthropogenic operations. Diet composition regarding aquatic vs. terrestrial prey, and bioaccumulation and biomagnification processes are suggested to explain differential assimilation of some compounds, especially Dechlorane Plus in Doñana, although a local emission source polluting this area cannot be ruled out. Insight from the migratory connectivity framework can help to disentangle large-scale patterns of contaminant uptake and refocus attention on key regions and potential causes of chemical hazards in declining migratory species and human populations.Funds were provided by the projects CGL2009-12753-C02-01/BOS, CGL2010-15726 and CGL2015-69445-P of the Spanish Ministerio of Economía y Competitividad, and by the Generalitat de Catalunya (Consolidated Research Group Water and Soil Quality Unit 2017 SGR 1404).Peer Reviewe
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When and where mortality occurs throughout the annual cycle changes with age in a migratory bird: individual vs population implications
'Springer Science and Business Media LLC', 2019Co-Authors: Sergio Fabrizio, Tanferna Alessandro, Blas Julio, Blanco Guillermo, Tavecchia Giacomo, Hiraldo F.Abstract:The annual cycle of most animals is structured into discrete stages, such as breeding, migration and dispersal. While there is growing appreciation of the importance of different stages of an organism’s annual cycle for its fitness and population dynamics, almost nothing is known about if and how such seasonal effects can change through a species lifespan. Here, we take advantage of the opportunity offered by a long-term satellite/GPS-tracking study and a reliable method of remote death-detection to show that certain stages of both the annual and life cycle of a migratory long-lived raptor, the Black Kite Milvus migrans, may represent sensitive bottlenecks for survival. In particular, migratory journeys caused bursts of concentrated-mortality throughout life, but the relative importance of stage-specific survival changed with age. On the other hand, the balance between short-stages of high mortality and long-stages of low mortality made population-growth similarly dependent on all portions of the annual cycle. Our results illustrate how the population dynamics of migratory organisms can be inextricably linked to ecological pressures balanced over multiple stages of the annual cycle and thus multiple areas of the globe, suggesting the frequent need for challenging conservation strategies targeting all portions of a species year-round range.Peer reviewe
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Offspring defense by an urban raptor responds to human subsidies and ritual animal-feeding practices
'Public Library of Science (PLoS)', 2018Co-Authors: Kumar Nishant, Jhala Yadvendradev, Qureshi Qamar, Gosler, Andrew G., Sergio FabrizioAbstract:There is a growing interest in the behavioural and life history mechanisms that allow animal species to cope with rapidly expanding urban habitats, which impose frequent proximity to humans. A particular case of behavioral bottleneck (i.e. conflicting interests) faced by animals in urban environments is how they will modulate the defence of their offspring against the potential danger represented by humans, an aspect that has received scarce research attention. We examined the nest defense against humans by a dense breeding population of a raptor, the Black Kite Milvus migrans, within the megacity of Delhi (India). Here, Kites live on a diet dominated by human waste and meat offered through religiously motivated bird feeding practices. Nest defense levels increased with the number of offspring, and with the progression of the breeding season. Defense also intensified close to ritual-feeding areas and with increasing human waste in the streets, suggesting synergistic effects of food availability, parental investment, personality-boldness and habituation to humans, with consequent attenuation of fear. Thus, the behavioural response to a perceived threat reflected the spatial mosaic of activity of humans in the city streets, their cultural practices of ritualfeeding, and their waste-management. For synurbic species, at the higher-end spectrum of adaptation to an urban life, human cultural practices and attitudes may well be the most defining dimensions of their urban niche. Our results suggest that, after initial urban colonization, animals may continue to adapt to the typically complex, heterogeneous environments of cities through fine-grained behavioural adjustments to human practices and activities.Peer reviewe
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Habitat selection by an avian top predator in the tropical megacity of Delhi: human activities and socio-religious practices as prey-facilitating tools
'Springer Science and Business Media LLC', 2018Co-Authors: Kumar Nishant, Jhala Yadvendradev, Gupta Urvi, Qureschi Qamar, Sergio FabrizioAbstract:Research in urban ecology is growing rapidly in response to the exponential growth of the urban environment. However, few studies have focused on tropical megacities, and on the interplay between predators’ habitat selection and human socio-economic aspects, which may mediate their resilience and coexistence with humans. We examined mechanisms of breeding habitat selection by a synanthropic raptor, the Black Kite Milvus migrans, in Delhi (India) where Kites mainly subsist on: (1) human refuse and its associated prey-fauna, and (2) ritualised feeding of Kites, particularly practised by Muslims. We used mixed effects models to test the effect of urban habitat configuration and human practices on habitat selection, site occupancy and breeding success. Kite habitat decisions, territory occupancy and breeding success were tightly enmeshed with human activities: Kites preferred areas with high human density, poor waste management and a road configuration that facilitated better access to resources provided by humans, in particular to Muslim colonies that provided ritual subsidies. Furthermore, Kites bred at ‘clean’ sites with less human refuse only when close to Muslim colonies, suggesting that the proximity to ritual-feeding sites modulated the suitability of other habitats. Rather than a nuisance to avoid, as previously portrayed, humans were a keenly-targeted foraging resource, which tied a predator’s distribution to human activities, politics, history, socio-economics and urban planning at multiple spatio-temporal scales. Many synurbic species may exploit humans in more subtle and direct ways than was previously assumed, but uncovering them will require greater integration of human socio-cultural estimates in urban ecological researchPeer reviewe
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Decoration increases the conspicuousness of raptor nests
'Public Library of Science (PLoS)', 2016Co-Authors: Canal David, Mulero-pázmány Margarita, Negro, Juan J., Sergio FabrizioAbstract:Avian nests are frequently concealed or camouflaged, but a number of species builds noticeable nests or use conspicuous materials for nest decoration. In most cases, nest decoration has a role in mate choice or provides thermoregulatory or antiparasitic benefits. In territorial species however, decorations may serve additional or complementary functions, such as extended phenotypic signaling of nest-site occupancy and social status to potential intruders. The latter may benefit both signaler and receiver by minimizing the risk of aggressive interactions, especially in organisms with dangerous weaponry. Support for this hypothesis was recently found in a population of Black Kites (Milvus migrans), a territorial raptor that decorates its nest with white artificial materials. However, the crucial assumption that nest decorations increased nest-site visibility to conspecifics was not assessed, a key aspect given that Black Kite nests may be well concealed within the canopy. Here, we used an unmanned aircraft system to take pictures of Black Kite nests, with and without an experimentally placed decoration, from different altitudes and distances simulating the perspective of a flying and approaching, prospecting intruder. The pictures were shown to human volunteers through a standardized routine to determine whether detection rates varied according the nest decoration status and distance. Decorated nests consistently showed a higher detection frequency and a lower detection-latency, compared to undecorated versions of the same nests. Our results confirm that nest decoration in this species may act as a signaling medium that enhances nest visibility for aerial receivers, even at large distances. This finding complements previous work on this communication system, which showed that nest decoration was a threat informing trespassing conspecifics on the social dominance, territory quality and fighting capabilities of the signaler.Peer Reviewe