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Resumen de las condiciones particulares de invernada correspondientes a la ola de frío, en Valladolid, a 3 de febrero de 1954
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Resumen de las condiciones particulares de invernada correspondientes a la ola de frío acaecida en la Península Ibérica entre el 30 de enero y el 3 de febrero de 1954, anotado a 3 de febrero de 1954, en Valladolid. Se incluyen datos sobre las siguientes aves: Anas sp. (Ánade), Anser sp. (Ánsar), Calidris sp. (Correlimos), Coccothraustes coccothraustes (Picogordo), Emberiza sp. (Escribano), Fringilla montifringilla (Pinzón real), Galerida sp. (Cogujada), Gallinago gallinago (Agachadiza común, llamada Capella gallinago por el autor), Haematopus ostralegus (Ostrero euroasiático), Larus canus (Gaviota cana), Larus ridibundus (Gaviota reidora), Motacilla alba (Lavandera blanca), Motacilla cinerea (Lavandera cascadeña), Phylloscopus collybita (Mosquitero común), Pluvialis apricaria (Chorlito Dorado Europeo, llamado Charadrius apricarius por el autor), Pyrrhocorax sp. (Chova), Pyrrhula sp. (Camachuelo), Rissa tridactyla (Gaviota tridáctila), Scolopax rusticola (Chocha perdiz, también llamada Becada), Sturnus sp. (Estornino), Turdus pilaris (Zorzal real), Turdus viscivorus (Zorzal charlo) y Vanellus vanellus (Avefría europea). También se incluye un resumen de las especies afectadas por el frío que observó Féliz Rodríguez de la Fuente en Briviesca (Burgos), que son: Anas sp. (Ánade), Anser sp. (Ánsar), Garrulus glandarius (Arrendajo), Larus canus (Gaviota cana), Larus ridibundus (Gaviota reidora), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Scolopax rusticola (Chocha perdiz, también llamada Becada) y Vanellus vanellus (Avefría europea).Summary of the special migrant wintered conditions corresponding to the cold spell hapenned at the Iberian Peninsula between the 30th of January and the 3rd of February of 1954, noted the 3rd of February of 1954, at Valladolid. Data about the following birds are included: Anas sp. (Ducks), Anser sp. (Goose), Calidris sp. (Sandpiper), Coccothraustes coccothraustes (Hawfinch), Emberiza sp. (Bunting), Fringilla montifringilla (Brambling), Galerida sp. (Lark), Gallinago gallinago (Common Snipe, refered as Capella gallinago by the author), Haematopus ostralegus (Eurasian Oystercatcher), Larus canus (Mew Gull), Larus ridibundus (Common Black-headed Gull), Motacilla alba (White Wagtail), Motacilla cinerea (Grey Wagtail), Phylloscopus collybita (Common Chiffchaff), Pluvialis apricaria (Eurasian Golden Plover, refered as Charadrius apricarius by the author), Pyrrhocorax sp. (Chough), Pyrrhula sp. (Bullfinch), Rissa tridactyla (Black-legged Kittiwake), Scolopax rusticola (Eurasian Woodcock), Sturnus sp. (Spotless Starling), Turdus pilaris (Fieldfare), Turdus viscivorus (Mistle Thrush) and Vanellus vanellus (Northern Lapwing). A list of the birds affected by the cold that were observed by Félix Rodríguez de la Fuente at Briviesca (Burgos) is also included, being: Anas sp. (Ducks), Anser sp. (Goose), Garrulus glandarius (Eurasian Jay), Larus canus (Mew Gull), Larus ridibundus (Common Black-headed Gull), Pica pica (Black-billed Magpie), Scolopax rusticola (Eurasian Woodcock) and Vanellus vanellus (Northern Lapwing)
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Salida de campo a Palencia el 8 de abril de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a Palencia el 8 de abril de 1953, de la que se anotaron observaciones sobre el mamífero "Pytimis" (llamado así por el autor, siendo posiblemente el actual género Microtus) y las siguientes aves: Athene noctua (Mochuelo europeo) y Garrulus glandarius (Arrendajo). Se inlcuye el análisis del contenido estomacal del último.Field trip to Palencia the 8th of April of 1953, of which there were noted observations about the mammal "Pytimis" (as refered by the author, being possibly the current genus Microtus) and the following birds: Athene noctua (Little Owl) and Garrulus glandarius (Eurasian Jay). The stomach contant analysis of the last one is included
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Información proporcionada por cazadores sobre la fauna de Vadocondes (Burgos) el 13 de noviembre de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Información proporcionada al autor por cazadores, sobre la fauna de Vadocondes (Burgos), a 13 de noviembre de 1953, que incluye a los siguientes anfibios: Alytes sp. (Sapo partero), Bufo sp. (Sapo) y "Molge sp." (puede referirse a Triturus marmoratus o a Pleurodeles waltl), los siguientes mamíferos: Ardilla (pudiendo ser, Sciurus vulgaris o Atlantoxerus getulus), Canis lupus (Lobo), Erizo (pudiendo ser Erinaceus europaeus o Atelerix algirus), Felis silvestris (Gato montés), Lirón (pudiendo ser Eliomys quercinus o Glis glis), Martes foina (Garduña), Meles meles (Tejón, también llamado Tasugo), Mustela nivalis (Comadreja), Mustela putorius (Turón), Sus scrofa (Jabalí) y Vulpes vulpes (Zorro, también llamado Raposo por el autor), y las siguientes aves: Anser sp. (Ánsar), Burhinus oedicnemus (Alcaraván común), Caprimulgus ruficollis (Chotacabras cuellirojo), Caprimulgus sp. (Chotacabras), Columba oenas (Paloma zurita), Columba palumbus (Paloma torcaz), Columba sp. (Paloma), Corvus corone (Corneja negra), Coturnix coturnix (Codorniz común), Cuculus canorus (Cuco común), Cyanopica cooki (Rabilargo, llamado "Charro" y C. cyana por el autor), Dendrocopos sp. (Pico, llamado, Dryobates sp. por el autor), Erithacus rubecula (Petirrojo), Falco peregrinus (Halcón peregrino, también llamado Alcotán palomero), Falco subbuteo (Alcotán), Garrulus glandarius (Arrendajo), Gaviota (pudiendo ser Larus sp. o Rissa sp.), Grus grus (Grulla común), Lanius senator (Alcaudón común), Merops apiaster (Abejaruco europeo), Oriolus oriolus (Oropéndola), Otis tarda (Avutarda común), Petronia petronia (Gorrión chillón, también llamada Jiria), Phoenicurus ochruros (Colirrojo tizón), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Picus viridis (Pito real), Pterocles orientalis (Ganga ortega), Pyrrhocorax pyrrhocorax (Chova piquirroja), Streptopelia sp. (Tórtola), Sturnus unicolor (Estornino negro), Sturnus vulgaris (Estornino pinto), Turdus ericetorum (considerado actualmente Turdus philomelos, el Zorzal común), Turdus viscivorus (Zorzal charlo) y Upupa epops (Abubilla, también llamada Bubillo por el autor). Se incluyen los nombres vernáculos usados en la zona para las especies citadas.Information provided to the author by hunters, about the fauna of Vadocondes (Burgos), the 13th of November of 1953, that includes the following amphibians: Alytes sp. (Midwife Toad), Bufo sp. (Toad) and "Molge sp." (that may be refered to Triturus marmoratus or Pleurodeles waltl), the following mammals: Canis lupus (Gray Wolf), Dormouse (that may be Eliomys quercinus or Glis glis), Felis silvestris (Wild Cat), Hedgehog (that may be, Erinaceus europaeus or Atelerix algirus), Martes foina (Beech Marten), Meles meles (Eurasian Badger), Mustela nivalis (Least Weasel), Mustela putorius (European Polecat)Squirrel (that may be Sciurus vulgaris or Atlantoxerus getulus), Sus scrofa (Wild Boar) and Vulpes vulpes (Red Fox), and the following birds: Anser sp. (Goose), Burhinus oedicnemus (Eurasian Thick-Knee), Caprimulgus ruficollis (Red-necked Nightjar), Caprimulgus sp. (Nightjar), Columba oenas (Stock Pigeon), Columba palumbus (Common Wood-pigeon), Columba sp. (Pigeon), Corvus corone (Carrion Crow), Coturnix coturnix (Common Quail), Cuculus canorus (Common Cuckoo), Cyanopica cooki (Azure-winged Magpie, refered as C. cyana by the author), Dendrocopos sp. (Spotted Woodpecker, refered as Dryobates sp. by the author), Erithacus rubecula (European Robin), Falco peregrinus (Peregrine Falcon), Falco subbuteo (Eurasian Hobby), Garrulus glandarius (Eurasian Jay), Grus grus (Common Crane), Gull (that may be Larus sp. or Rissa sp.), Lanius senator (Woodchat Shrike), Merops apiaster (European Bee-eater), Oriolus oriolus (Eurasian Golden-oriole), Otis tarda (Great Bustard), Petronia petronia (Rock Sparrow), Phoenicurus ochruros (Black Redstart), Pica pica (Black-billed Magpie), Picus viridis (Eurasian Green Woodpecker), Pterocles orientalis (Black-bellied Sandgrouse), Pyrrhocorax pyrrhocorax (Red-billed Chough), Streptopelia sp. (Turtle-dove), Sturnus unicolor (Spotless Starling), Sturnus vulgaris (Common Starling), Turdus ericetorum (currently considered Turdus philomelos, the Song Thrush), Turdus viscivorus (Mistle Thrush) and Upupa epops (Eurasian Hoopoe). The vernacular names used at the area for the quoted species are included
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Salida de campo por Santo Domingo de Silos (Burgos) a finales de noviembre de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo por Santo Domingo de Silos, en Burgos, a finales de noviembre de 1953, de la que se anotaron observaciones sobre sapos (sin identificar las especies), los siguientes mamíferos: Arvicola sapidus (Rata de agua, también llamado Ratón aguadero) y Neomys sp. (Musgaño), y las siguientes aves: Accipiter nisus (Gavilán común, también llamado Astur palumbarius por el autor), Carduelis cannabina (Pardillo común, llamada Colorín y Acanthis cannabina por el autor), Carduelis chloris (Verderón común, llamado Chloris chloris por el autor), Carduelis sp. (seguramente, el Jilguero, C.carduelis), Certhia sp. (Agateador, también conocido como Chapin), Cettia cetti (Ruiseñor bastardo), Cinclus cinclus (Mirlo acuático), Columba domestica (Paloma doméstica), Columba livia (Paloma bravía), Corvus corax (Cuervo), Corvus corone (Corneja negra), Corvus monedula (Grajilla, llamada Coloeus por el autor), Cyanopica cooki (Rabilargo, llamado "Charro" y C. cyana por el autor), Emberiza cia (Escribano montesino), Emberiza cirlus (Escribano soteño), Falco tinnunculus (Cernícalo vulgar), Fringilla coelebs (Pinzón vulgar), Gallinula chloropus (Gallineta común), Garrulus glandarius (Arrendajo), Gyps fulvus (Buitre leonado), Lophophanes cristatus (Herrerillo capuchino, llamado Parus cristarus por el autor), Motacilla alba (Lavandera blanca), Motacilla cinerea (Lavandera cascadeña), Parus major (Carbonero común, también conocido como Chapin), Periparus ater (Carbonero Garrapinos, llamado Parus ater por el autor), Phylloscopus collybita (Mosquitero común), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Picus viridis (Pito real), Pyrrhocorax pyrrhocorax (Chova piquirroja), Rallus aquaticus (Rascón europeo), Sturnus unicolor (Estornino negro), Sylvia undata (Curruca rabilarga), Troglodytes troglodytes (Chochín), Turdus ericetorum (considerado actualmente Turdus philomelos, el Zorzal común), Turdus merula (Mirlo común) y Turdus viscivorus (Zorzal charlo).Field trip through Santo Domingo de Silos, at Burgos, during the last days of november of 1953, of which there were noted observations about toads (without identifying the species), the following mammals: Arvicola sapidus (Southern Water Vole) and Neomys sp. (Shrew), and the following birds: Accipiter nisus (Eurasian Sparrowhawk, also refered as Astur palumbarius by the author), Carduelis cannabina (Eurasian Linnet, refered as Acanthis cannabina by the author), Carduelis chloris (European Greenfinch, refered as Chloris chloris by the author), Carduelis sp. (probably, the European Goldfinch, C.carduelis), Certhia sp. (Tree-creeper), Cettia cetti (Cetti´s Warbler), Cinclus cinclus (White-throated Dipper), Columba domestica (Domestic Pigeon), Columba livia (Rock Pigeon), Corvus corax (Common Raven), Corvus corone (Carrion Crow), Corvus monedula (Eurasian Jackdaw, refered as Coloeus by the author), Cyanopica cooki (Azure-winged Magpie, refered as C. cyana by the author), Emberiza cia (Rock Bunting), Emberiza cirlus (Cirl Bunting), Falco tinnunculus (Common Kestrel), Fringilla coelebs (Chaffinch), Gallinula chloropus (Common Moorhen), Garrulus glandarius (Eurasian Jay), Gyps fulvus (Eurasian Griffon), Lophophanes cristatus (Crested Tit, refered as Parus cristatus by the author), Motacilla alba (White Wagtail), Motacilla cinerea (Grey Wagtail), Parus major (Great Tit), Periparus ater (Coal Tit, refered as Parus ater by the author), Phylloscopus collybita (Common Chiffchaff), Pica pica (Black-billed Magpie), Picus viridis (Eurasian Green Woodpecker), Pyrrhocorax pyrrhocorax (Red-billed Chough), Rallus aquaticus (Water Rail), Sturnus unicolor (Spotless Starling), Sylvia undata (Dartford Warbler), Troglodytes troglodytes (Winter Wren), Turdus ericetorum (currently considered Turdus philomelos, the Song Thrush), Turdus merula (Eurasian Blackbird) and Turdus viscivorus (Mistle Thrush)
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Salida de campo a Santo Domingo de Silos, en Burgos, el 25 de noviembre de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a Santo Domingo de Silos, en Burgos, el 25 de noviembre de 1953, de la que se anotaron observaciones sobre los siguientes mamíferos: Oryctolagus cuniculus (Conejo) y "Pytimis pelandonius", y las siguientes aves: Accipiter nisus (Gavilán común, también llamado Astur palumbarius por el autor), Alcedo atthis (Martín pescador común), Carduelis cannabina (Pardillo común, llamada Colorín y Acanthis cannabina por el autor), Carduelis carduelis (Jilguero), Carduelis chloris (Verderón común, llamado Chloris chloris por el autor), Certhia sp. (Agateador, también conocido como Chapin), Cettia cetti (Ruiseñor bastardo), Corvus monedula (Grajilla, llamada Coloeus por el autor), Emberiza cia (Escribano montesino), Emberiza cirlus (Escribano soteño), Fringilla coelebs (Pinzón vulgar), Fringilla sp. (Pinzón), Galerida sp. (Cogujada), Gallinula chloropus (Gallineta común), Garrulus glandarius (Arrendajo), Lophophanes cristatus (Herrerillo capuchino, llamado Parus cristarus por el autor), Motacilla alba (Lavandera blanca), Motacilla cinerea (Lavandera cascadeña), Periparus ater (Carbonero Garrapinos, llamado Parus ater por el autor), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Pyrrhocorax pyrrhocorax (Chova piquirroja), Rallus aquaticus (Rascón europeo), Troglodytes troglodytes (Chochín), Turdus philomelos (Zorzal común, actualmente sinónimo de T.ericetorum o T.muscicus) y Turdus viscivorus (Zorzal charlo). Se incluyen el análisis de un contenido estomacal, descripciones de las comunidades vegetales de la zona y los datos de dos taxiados.Field trip to Santo Domingo de Silos, at Burgos, the 25th of November of 1953, of which there were noted observations about the following mammals: Oryctolagus cuniculus (European Rabbit) and "Pytimis pelandonius", and the following birds: Accipiter nisus (Eurasian Sparrowhawk, also refered as Astur palumbarius by the author), Alcedo atthis (Common Kingfisher), Carduelis cannabina (Eurasian Linnet, refered as Acanthis cannabina by the author), Carduelis carduelis (European Goldfinch), Carduelis chloris (European Greenfinch, refered as Chloris chloris by the author), Certhia sp. (Tree-creeper), Cettia cetti (Cetti´s Warbler), Corvus monedula (Eurasian Jackdaw, refered as Coloeus by the author), Emberiza cia (Rock Bunting), Emberiza cirlus (Cirl Bunting), Fringilla coelebs (Chaffinch), Fringilla sp. (Chaffinch), Galerida sp. (Lark)Gallinula chloropus (Common Moorhen), Garrulus glandarius (Eurasian Jay), Lophophanes cristatus (Crested Tit, refered as Parus cristatus by the author), Motacilla alba (White Wagtail), Motacilla cinerea (Grey Wagtail), Periparus ater (Coal Tit, refered as Parus ater by the author), Pica pica (Black-billed Magpie), Pyrrhocorax pyrrhocorax (Red-billed Chough), Rallus aquaticus (Water Rail), Troglodytes troglodytes (Winter Wren), Turdus philomelos (Song Thrush, currently synonymous of T.ericetorum or T.muscicus) and Turdus viscivorus (Mistle Thrush). Data from the analysis of a stomach content, descriptions of the vegetal communities existing at the area and data from two census are included
Valverde Gómez - One of the best experts on this subject based on the ideXlab platform.
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Resumen de las condiciones particulares de invernada correspondientes a la ola de frío, en Valladolid, a 3 de febrero de 1954
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Resumen de las condiciones particulares de invernada correspondientes a la ola de frío acaecida en la Península Ibérica entre el 30 de enero y el 3 de febrero de 1954, anotado a 3 de febrero de 1954, en Valladolid. Se incluyen datos sobre las siguientes aves: Anas sp. (Ánade), Anser sp. (Ánsar), Calidris sp. (Correlimos), Coccothraustes coccothraustes (Picogordo), Emberiza sp. (Escribano), Fringilla montifringilla (Pinzón real), Galerida sp. (Cogujada), Gallinago gallinago (Agachadiza común, llamada Capella gallinago por el autor), Haematopus ostralegus (Ostrero euroasiático), Larus canus (Gaviota cana), Larus ridibundus (Gaviota reidora), Motacilla alba (Lavandera blanca), Motacilla cinerea (Lavandera cascadeña), Phylloscopus collybita (Mosquitero común), Pluvialis apricaria (Chorlito Dorado Europeo, llamado Charadrius apricarius por el autor), Pyrrhocorax sp. (Chova), Pyrrhula sp. (Camachuelo), Rissa tridactyla (Gaviota tridáctila), Scolopax rusticola (Chocha perdiz, también llamada Becada), Sturnus sp. (Estornino), Turdus pilaris (Zorzal real), Turdus viscivorus (Zorzal charlo) y Vanellus vanellus (Avefría europea). También se incluye un resumen de las especies afectadas por el frío que observó Féliz Rodríguez de la Fuente en Briviesca (Burgos), que son: Anas sp. (Ánade), Anser sp. (Ánsar), Garrulus glandarius (Arrendajo), Larus canus (Gaviota cana), Larus ridibundus (Gaviota reidora), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Scolopax rusticola (Chocha perdiz, también llamada Becada) y Vanellus vanellus (Avefría europea).Summary of the special migrant wintered conditions corresponding to the cold spell hapenned at the Iberian Peninsula between the 30th of January and the 3rd of February of 1954, noted the 3rd of February of 1954, at Valladolid. Data about the following birds are included: Anas sp. (Ducks), Anser sp. (Goose), Calidris sp. (Sandpiper), Coccothraustes coccothraustes (Hawfinch), Emberiza sp. (Bunting), Fringilla montifringilla (Brambling), Galerida sp. (Lark), Gallinago gallinago (Common Snipe, refered as Capella gallinago by the author), Haematopus ostralegus (Eurasian Oystercatcher), Larus canus (Mew Gull), Larus ridibundus (Common Black-headed Gull), Motacilla alba (White Wagtail), Motacilla cinerea (Grey Wagtail), Phylloscopus collybita (Common Chiffchaff), Pluvialis apricaria (Eurasian Golden Plover, refered as Charadrius apricarius by the author), Pyrrhocorax sp. (Chough), Pyrrhula sp. (Bullfinch), Rissa tridactyla (Black-legged Kittiwake), Scolopax rusticola (Eurasian Woodcock), Sturnus sp. (Spotless Starling), Turdus pilaris (Fieldfare), Turdus viscivorus (Mistle Thrush) and Vanellus vanellus (Northern Lapwing). A list of the birds affected by the cold that were observed by Félix Rodríguez de la Fuente at Briviesca (Burgos) is also included, being: Anas sp. (Ducks), Anser sp. (Goose), Garrulus glandarius (Eurasian Jay), Larus canus (Mew Gull), Larus ridibundus (Common Black-headed Gull), Pica pica (Black-billed Magpie), Scolopax rusticola (Eurasian Woodcock) and Vanellus vanellus (Northern Lapwing)
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Salida de campo a Palencia el 8 de abril de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a Palencia el 8 de abril de 1953, de la que se anotaron observaciones sobre el mamífero "Pytimis" (llamado así por el autor, siendo posiblemente el actual género Microtus) y las siguientes aves: Athene noctua (Mochuelo europeo) y Garrulus glandarius (Arrendajo). Se inlcuye el análisis del contenido estomacal del último.Field trip to Palencia the 8th of April of 1953, of which there were noted observations about the mammal "Pytimis" (as refered by the author, being possibly the current genus Microtus) and the following birds: Athene noctua (Little Owl) and Garrulus glandarius (Eurasian Jay). The stomach contant analysis of the last one is included
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Información proporcionada por cazadores sobre la fauna de Vadocondes (Burgos) el 13 de noviembre de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Información proporcionada al autor por cazadores, sobre la fauna de Vadocondes (Burgos), a 13 de noviembre de 1953, que incluye a los siguientes anfibios: Alytes sp. (Sapo partero), Bufo sp. (Sapo) y "Molge sp." (puede referirse a Triturus marmoratus o a Pleurodeles waltl), los siguientes mamíferos: Ardilla (pudiendo ser, Sciurus vulgaris o Atlantoxerus getulus), Canis lupus (Lobo), Erizo (pudiendo ser Erinaceus europaeus o Atelerix algirus), Felis silvestris (Gato montés), Lirón (pudiendo ser Eliomys quercinus o Glis glis), Martes foina (Garduña), Meles meles (Tejón, también llamado Tasugo), Mustela nivalis (Comadreja), Mustela putorius (Turón), Sus scrofa (Jabalí) y Vulpes vulpes (Zorro, también llamado Raposo por el autor), y las siguientes aves: Anser sp. (Ánsar), Burhinus oedicnemus (Alcaraván común), Caprimulgus ruficollis (Chotacabras cuellirojo), Caprimulgus sp. (Chotacabras), Columba oenas (Paloma zurita), Columba palumbus (Paloma torcaz), Columba sp. (Paloma), Corvus corone (Corneja negra), Coturnix coturnix (Codorniz común), Cuculus canorus (Cuco común), Cyanopica cooki (Rabilargo, llamado "Charro" y C. cyana por el autor), Dendrocopos sp. (Pico, llamado, Dryobates sp. por el autor), Erithacus rubecula (Petirrojo), Falco peregrinus (Halcón peregrino, también llamado Alcotán palomero), Falco subbuteo (Alcotán), Garrulus glandarius (Arrendajo), Gaviota (pudiendo ser Larus sp. o Rissa sp.), Grus grus (Grulla común), Lanius senator (Alcaudón común), Merops apiaster (Abejaruco europeo), Oriolus oriolus (Oropéndola), Otis tarda (Avutarda común), Petronia petronia (Gorrión chillón, también llamada Jiria), Phoenicurus ochruros (Colirrojo tizón), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Picus viridis (Pito real), Pterocles orientalis (Ganga ortega), Pyrrhocorax pyrrhocorax (Chova piquirroja), Streptopelia sp. (Tórtola), Sturnus unicolor (Estornino negro), Sturnus vulgaris (Estornino pinto), Turdus ericetorum (considerado actualmente Turdus philomelos, el Zorzal común), Turdus viscivorus (Zorzal charlo) y Upupa epops (Abubilla, también llamada Bubillo por el autor). Se incluyen los nombres vernáculos usados en la zona para las especies citadas.Information provided to the author by hunters, about the fauna of Vadocondes (Burgos), the 13th of November of 1953, that includes the following amphibians: Alytes sp. (Midwife Toad), Bufo sp. (Toad) and "Molge sp." (that may be refered to Triturus marmoratus or Pleurodeles waltl), the following mammals: Canis lupus (Gray Wolf), Dormouse (that may be Eliomys quercinus or Glis glis), Felis silvestris (Wild Cat), Hedgehog (that may be, Erinaceus europaeus or Atelerix algirus), Martes foina (Beech Marten), Meles meles (Eurasian Badger), Mustela nivalis (Least Weasel), Mustela putorius (European Polecat)Squirrel (that may be Sciurus vulgaris or Atlantoxerus getulus), Sus scrofa (Wild Boar) and Vulpes vulpes (Red Fox), and the following birds: Anser sp. (Goose), Burhinus oedicnemus (Eurasian Thick-Knee), Caprimulgus ruficollis (Red-necked Nightjar), Caprimulgus sp. (Nightjar), Columba oenas (Stock Pigeon), Columba palumbus (Common Wood-pigeon), Columba sp. (Pigeon), Corvus corone (Carrion Crow), Coturnix coturnix (Common Quail), Cuculus canorus (Common Cuckoo), Cyanopica cooki (Azure-winged Magpie, refered as C. cyana by the author), Dendrocopos sp. (Spotted Woodpecker, refered as Dryobates sp. by the author), Erithacus rubecula (European Robin), Falco peregrinus (Peregrine Falcon), Falco subbuteo (Eurasian Hobby), Garrulus glandarius (Eurasian Jay), Grus grus (Common Crane), Gull (that may be Larus sp. or Rissa sp.), Lanius senator (Woodchat Shrike), Merops apiaster (European Bee-eater), Oriolus oriolus (Eurasian Golden-oriole), Otis tarda (Great Bustard), Petronia petronia (Rock Sparrow), Phoenicurus ochruros (Black Redstart), Pica pica (Black-billed Magpie), Picus viridis (Eurasian Green Woodpecker), Pterocles orientalis (Black-bellied Sandgrouse), Pyrrhocorax pyrrhocorax (Red-billed Chough), Streptopelia sp. (Turtle-dove), Sturnus unicolor (Spotless Starling), Sturnus vulgaris (Common Starling), Turdus ericetorum (currently considered Turdus philomelos, the Song Thrush), Turdus viscivorus (Mistle Thrush) and Upupa epops (Eurasian Hoopoe). The vernacular names used at the area for the quoted species are included
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Salida de campo por Santo Domingo de Silos (Burgos) a finales de noviembre de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo por Santo Domingo de Silos, en Burgos, a finales de noviembre de 1953, de la que se anotaron observaciones sobre sapos (sin identificar las especies), los siguientes mamíferos: Arvicola sapidus (Rata de agua, también llamado Ratón aguadero) y Neomys sp. (Musgaño), y las siguientes aves: Accipiter nisus (Gavilán común, también llamado Astur palumbarius por el autor), Carduelis cannabina (Pardillo común, llamada Colorín y Acanthis cannabina por el autor), Carduelis chloris (Verderón común, llamado Chloris chloris por el autor), Carduelis sp. (seguramente, el Jilguero, C.carduelis), Certhia sp. (Agateador, también conocido como Chapin), Cettia cetti (Ruiseñor bastardo), Cinclus cinclus (Mirlo acuático), Columba domestica (Paloma doméstica), Columba livia (Paloma bravía), Corvus corax (Cuervo), Corvus corone (Corneja negra), Corvus monedula (Grajilla, llamada Coloeus por el autor), Cyanopica cooki (Rabilargo, llamado "Charro" y C. cyana por el autor), Emberiza cia (Escribano montesino), Emberiza cirlus (Escribano soteño), Falco tinnunculus (Cernícalo vulgar), Fringilla coelebs (Pinzón vulgar), Gallinula chloropus (Gallineta común), Garrulus glandarius (Arrendajo), Gyps fulvus (Buitre leonado), Lophophanes cristatus (Herrerillo capuchino, llamado Parus cristarus por el autor), Motacilla alba (Lavandera blanca), Motacilla cinerea (Lavandera cascadeña), Parus major (Carbonero común, también conocido como Chapin), Periparus ater (Carbonero Garrapinos, llamado Parus ater por el autor), Phylloscopus collybita (Mosquitero común), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Picus viridis (Pito real), Pyrrhocorax pyrrhocorax (Chova piquirroja), Rallus aquaticus (Rascón europeo), Sturnus unicolor (Estornino negro), Sylvia undata (Curruca rabilarga), Troglodytes troglodytes (Chochín), Turdus ericetorum (considerado actualmente Turdus philomelos, el Zorzal común), Turdus merula (Mirlo común) y Turdus viscivorus (Zorzal charlo).Field trip through Santo Domingo de Silos, at Burgos, during the last days of november of 1953, of which there were noted observations about toads (without identifying the species), the following mammals: Arvicola sapidus (Southern Water Vole) and Neomys sp. (Shrew), and the following birds: Accipiter nisus (Eurasian Sparrowhawk, also refered as Astur palumbarius by the author), Carduelis cannabina (Eurasian Linnet, refered as Acanthis cannabina by the author), Carduelis chloris (European Greenfinch, refered as Chloris chloris by the author), Carduelis sp. (probably, the European Goldfinch, C.carduelis), Certhia sp. (Tree-creeper), Cettia cetti (Cetti´s Warbler), Cinclus cinclus (White-throated Dipper), Columba domestica (Domestic Pigeon), Columba livia (Rock Pigeon), Corvus corax (Common Raven), Corvus corone (Carrion Crow), Corvus monedula (Eurasian Jackdaw, refered as Coloeus by the author), Cyanopica cooki (Azure-winged Magpie, refered as C. cyana by the author), Emberiza cia (Rock Bunting), Emberiza cirlus (Cirl Bunting), Falco tinnunculus (Common Kestrel), Fringilla coelebs (Chaffinch), Gallinula chloropus (Common Moorhen), Garrulus glandarius (Eurasian Jay), Gyps fulvus (Eurasian Griffon), Lophophanes cristatus (Crested Tit, refered as Parus cristatus by the author), Motacilla alba (White Wagtail), Motacilla cinerea (Grey Wagtail), Parus major (Great Tit), Periparus ater (Coal Tit, refered as Parus ater by the author), Phylloscopus collybita (Common Chiffchaff), Pica pica (Black-billed Magpie), Picus viridis (Eurasian Green Woodpecker), Pyrrhocorax pyrrhocorax (Red-billed Chough), Rallus aquaticus (Water Rail), Sturnus unicolor (Spotless Starling), Sylvia undata (Dartford Warbler), Troglodytes troglodytes (Winter Wren), Turdus ericetorum (currently considered Turdus philomelos, the Song Thrush), Turdus merula (Eurasian Blackbird) and Turdus viscivorus (Mistle Thrush)
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Salida de campo a Santo Domingo de Silos, en Burgos, el 25 de noviembre de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a Santo Domingo de Silos, en Burgos, el 25 de noviembre de 1953, de la que se anotaron observaciones sobre los siguientes mamíferos: Oryctolagus cuniculus (Conejo) y "Pytimis pelandonius", y las siguientes aves: Accipiter nisus (Gavilán común, también llamado Astur palumbarius por el autor), Alcedo atthis (Martín pescador común), Carduelis cannabina (Pardillo común, llamada Colorín y Acanthis cannabina por el autor), Carduelis carduelis (Jilguero), Carduelis chloris (Verderón común, llamado Chloris chloris por el autor), Certhia sp. (Agateador, también conocido como Chapin), Cettia cetti (Ruiseñor bastardo), Corvus monedula (Grajilla, llamada Coloeus por el autor), Emberiza cia (Escribano montesino), Emberiza cirlus (Escribano soteño), Fringilla coelebs (Pinzón vulgar), Fringilla sp. (Pinzón), Galerida sp. (Cogujada), Gallinula chloropus (Gallineta común), Garrulus glandarius (Arrendajo), Lophophanes cristatus (Herrerillo capuchino, llamado Parus cristarus por el autor), Motacilla alba (Lavandera blanca), Motacilla cinerea (Lavandera cascadeña), Periparus ater (Carbonero Garrapinos, llamado Parus ater por el autor), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Pyrrhocorax pyrrhocorax (Chova piquirroja), Rallus aquaticus (Rascón europeo), Troglodytes troglodytes (Chochín), Turdus philomelos (Zorzal común, actualmente sinónimo de T.ericetorum o T.muscicus) y Turdus viscivorus (Zorzal charlo). Se incluyen el análisis de un contenido estomacal, descripciones de las comunidades vegetales de la zona y los datos de dos taxiados.Field trip to Santo Domingo de Silos, at Burgos, the 25th of November of 1953, of which there were noted observations about the following mammals: Oryctolagus cuniculus (European Rabbit) and "Pytimis pelandonius", and the following birds: Accipiter nisus (Eurasian Sparrowhawk, also refered as Astur palumbarius by the author), Alcedo atthis (Common Kingfisher), Carduelis cannabina (Eurasian Linnet, refered as Acanthis cannabina by the author), Carduelis carduelis (European Goldfinch), Carduelis chloris (European Greenfinch, refered as Chloris chloris by the author), Certhia sp. (Tree-creeper), Cettia cetti (Cetti´s Warbler), Corvus monedula (Eurasian Jackdaw, refered as Coloeus by the author), Emberiza cia (Rock Bunting), Emberiza cirlus (Cirl Bunting), Fringilla coelebs (Chaffinch), Fringilla sp. (Chaffinch), Galerida sp. (Lark)Gallinula chloropus (Common Moorhen), Garrulus glandarius (Eurasian Jay), Lophophanes cristatus (Crested Tit, refered as Parus cristatus by the author), Motacilla alba (White Wagtail), Motacilla cinerea (Grey Wagtail), Periparus ater (Coal Tit, refered as Parus ater by the author), Pica pica (Black-billed Magpie), Pyrrhocorax pyrrhocorax (Red-billed Chough), Rallus aquaticus (Water Rail), Troglodytes troglodytes (Winter Wren), Turdus philomelos (Song Thrush, currently synonymous of T.ericetorum or T.muscicus) and Turdus viscivorus (Mistle Thrush). Data from the analysis of a stomach content, descriptions of the vegetal communities existing at the area and data from two census are included
Nuria Selva - One of the best experts on this subject based on the ideXlab platform.
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Baiting Sites as Hotspots for Ground-Nest Predation
2016Co-Authors: Nest Predation, Nuria Selva, Teresa Berezowska-cnota, Isabel Elguero-claramuntAbstract:Despite the ubiquity and magnitude of food provision to wildlife, our understanding of its ecological effects and conservation implications is very limited. Supplementary feeding of ungulates, still one of the main paradigms of game management in Europe, occurs in natural areas on an enormous scale. We investigated the indirect effects of this practice on nest predation risk in the Polish Eastern Carpathians (Bieszczady Mountains). We hypothesized that the predators attracted to ungulate baiting sites would also forage for alternative prey nearby, increasing the nest predation risk for ground-nesting birds in the vicinity. We conducted a paired experiment by placing artificial nests (N = 120) in feeding and control sites (N = 12) at different distances from the ungulate feeding site. We also documented the use of three ungulate feeding sites by potential nest predators with automatic cameras. The proportion of depredated nests was 30 % higher in the vicinity of feeding sites than at control sites (65%631.5 vs 35%632.1). The probability of a nest being depredated significantly increased with time and at shorter distances from the feeding site. We predicted that the area within 1-km distance from the feeding site would have a high risk (.0.5) of nest predation. We recorded 13 species of potential ground-nest predators at ungulate baiting sites. Most frequent were Eurasian jays Garrulus glandarius, mice and voles Muroidea, ravens Corvus corax, brown bears Ursus arctos, and wild boar Sus scrofa. Nest predators made most use of supplementar
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Unforeseen Effects of Supplementary Feeding: Ungulate Baiting Sites as Hotspots for Ground-Nest Predation
2016Co-Authors: Nuria Selva, Teresa Berezowska-cnota, Isabel Elguero-claramuntAbstract:Despite the ubiquity and magnitude of food provision to wildlife, our understanding of its ecological effects and conservation implications is very limited. Supplementary feeding of ungulates, still one of the main paradigms of game management in Europe, occurs in natural areas on an enormous scale. We investigated the indirect effects of this practice on nest predation risk in the Polish Eastern Carpathians (Bieszczady Mountains). We hypothesized that the predators attracted to ungulate baiting sites would also forage for alternative prey nearby, increasing the nest predation risk for ground-nesting birds in the vicinity. We conducted a paired experiment by placing artificial nests (N = 120) in feeding and control sites (N = 12) at different distances from the ungulate feeding site. We also documented the use of three ungulate feeding sites by potential nest predators with automatic cameras. The proportion of depredated nests was 30 % higher in the vicinity of feeding sites than at control sites (65%631.5 vs 35%632.1). The probability of a nest being depredated significantly increased with time and at shorter distances from the feeding site. We predicted that the area within 1-km distance from the feeding site would have a high risk (.0.5) of nest predation. We recorded 13 species of potential ground-nest predators at ungulate baiting sites. Most frequent were Eurasian jays Garrulus glandarius, mice and voles Muroidea, ravens Corvus corax, brown bears Ursus arctos, and wild boar Sus scrofa. Nest predators made most use of supplementary feeding sites (82 % pictures with predators vs 8 % with ungulates, the target group). Our study alerts of the impacts o
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unforeseen effects of supplementary feeding ungulate baiting sites as hotspots for ground nest predation
PLOS ONE, 2014Co-Authors: Nuria Selva, Teresa Berezowskacnota, Isabel ElgueroclaramuntAbstract:Despite the ubiquity and magnitude of food provision to wildlife, our understanding of its ecological effects and conservation implications is very limited. Supplementary feeding of ungulates, still one of the main paradigms of game management in Europe, occurs in natural areas on an enormous scale. We investigated the indirect effects of this practice on nest predation risk in the Polish Eastern Carpathians (Bieszczady Mountains). We hypothesized that the predators attracted to ungulate baiting sites would also forage for alternative prey nearby, increasing the nest predation risk for ground-nesting birds in the vicinity. We conducted a paired experiment by placing artificial nests (N = 120) in feeding and control sites (N = 12) at different distances from the ungulate feeding site. We also documented the use of three ungulate feeding sites by potential nest predators with automatic cameras. The proportion of depredated nests was 30% higher in the vicinity of feeding sites than at control sites (65%±31.5 vs 35%±32.1). The probability of a nest being depredated significantly increased with time and at shorter distances from the feeding site. We predicted that the area within 1-km distance from the feeding site would have a high risk (>0.5) of nest predation. We recorded 13 species of potential ground-nest predators at ungulate baiting sites. Most frequent were Eurasian jays Garrulus glandarius, mice and voles Muroidea, ravens Corvus corax, brown bears Ursus arctos, and wild boar Sus scrofa. Nest predators made most use of supplementary feeding sites (82% pictures with predators vs 8% with ungulates, the target group). Our study alerts of the impacts of ungulate feeding on alternative prey; this is of special concern when affecting protected species. We urge for a sensible management of ungulate feeding, which considers potential indirect effects on other species and the spatial and temporal components of food provision.
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effects of carrion resources on herbivore spatial distribution are mediated by facultative scavengers
Basic and Applied Ecology, 2009Co-Authors: Ainara Cortesavizanda, Nuria Selva, Martina Carrete, Jose A DonazarAbstract:Abstract Carcasses of large herbivores are pulsed resources whose impact on animal communities and ecological processes is poorly understood. In temperate forests, long-lasting ungulate carcasses are a prime resource for many species of birds and mammals during winter. Facultative carrion-eaters also consume live prey, thus potentially leading to unexpected secondary effects on populations of species not directly linked to carcass exploitation. By snow-tracking and direct observations we investigated in Bialowieza Forest (E. Poland) whether large ungulate carcasses elicit spatial responses in facultative scavengers and their prey. We found that in the vicinity of carcass sites the probability of the presence of common ravens Corvus corax , jays Garrulus glandarius and red foxes Vulpes vulpes increased significantly. Indeed, large groups of the two bird species were exclusively found in those places. Because of these aggregations, the probability of predator–prey encounters (red foxes and brown hares Lepus europaeus ) was significantly higher near carcass sites. Accordingly, the abundance of hares and other live prey such as red squirrels Sciurus vulgaris decreased at their vicinities, probably as a consequence of direct killing and/or predator avoidance. This study provides the first evidence of carrion pulses permeating into apparently distant trophic levels, such as herbivores, via facultative scavengers, thus highlighting some unnoticed but relevant effects of carrion resources on community structure.
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factors affecting carcass use by a guild of scavengers in european temperate woodland
Canadian Journal of Zoology, 2005Co-Authors: Nuria Selva, Bogumila Jedrzejewska, Wlodzimierz Jedrzejewski, Adam WajrakAbstract:Although facultative scavenging is very common, little is known about the factors governing carrion acquisition by vertebrates. We examined the influence of carcass characteristics, carcass state, and weather conditions on carrion use by main scavengers. Carcasses (N = 214, mainly ungulates) of various origins (predation, natural deaths, harvest) were monitored by systematic inspections (N = 1784) in Biaowiea Forest (Poland). Common raven (Corvus corax L., 1758), red fox (Vulpes vulpes (L., 1758)), and European pine marten (Martes martes (L., 1758)) mainly used the prey remains of gray wolves (Canis lupus L., 1758). The kills of predators were the preferred carrion, rather than dead ungulates. Com- mon ravens, common buzzards (Buteo buteo (L., 1758)), white-tailed eagles (Haliaeetus albicilla (L., 1758)), and domes- tic dogs scavenged more frequently on carcasses in open habitats. Carcasses located in the forest were the most available to European pine martens, jays (Garrulus glandarius (L., 1758)), and wild boar (Sus scrofa L., 1758). The common ten- dency was to increase scavenging when temperature decreased, except for raccoon dogs (Nyctereutes procyonoides (Gray 1834)). As snow depth increased, jays and great tits (Parus major L., 1758) increased scavenging. We suggest that carrion use by scavengers is not random, but a complex process mediated by extrinsic factors and by behavioural adaptations of scavengers. Resume : Bien que l'utilisation facultative des charognes soit tres commune chez les vertebres, on connait peu les facteurs qui regissent l'acquisition des cadavres. Nous avons examine l'influence des caracteristiques et de l'etat des carcasses ainsi que des conditions climatiques sur l'utilisation des charognes par les principaux charognards. Nous avons suivi par inspections systematiques (N = 1784) des carcasses (N = 214, surtout d'ongules) d'origines diverses (predation, mort naturelle, recolte) dans la foret de Biaowiea (Pologne). Les grands corbeaux (Corvus corax L., 1758), les renards roux (Vulpes vulpes (L., 1758)) et les martres des pins d'Europe (Martes martes (L., 1758)) utilisent surtout les restes des proies des loups communs (Canis lupus L., 1758). Les proies tuees par les predateurs sont les charognes de predilection, preferees aux ongules morts. Les corbeaux, les buses variables (Buteo buteo (L., 1758)), les pigargues a queue blanche (Haliaeetus albicilla (L., 1758)) et les chiens domestiques se nourrissent plus souvent de carcasses dans les habitats ouverts. Les carcasses dans les forets sont surtout disponibles aux martres des pins d'Europe, aux geais des chenes (Garrulus glandarius (L., 1758)) et aux sangliers d'Eurasie (Sus scrofa L., 1758) sauvages. La tendance commune est d'augmenter l'utilisation des charognes lorsque la temperature decroit, excepte chez les chiens viverrins (Nyctereutes procyonoides (Gray, 1834)). Avec l'augmentation de la couche de neige, les geais et les mesanges charbonnieres (Parus major L., 1758) accroissent leur utilisation des charognes. Nous croyons que l'utilisation des charognes par les charognards n'est pas aleatoire, mais qu'elle est un processus complexe sous l'influence de facteurs extrinseques et des adaptations comportementales des charognards.
Isabel Elgueroclaramunt - One of the best experts on this subject based on the ideXlab platform.
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unforeseen effects of supplementary feeding ungulate baiting sites as hotspots for ground nest predation
PLOS ONE, 2014Co-Authors: Nuria Selva, Teresa Berezowskacnota, Isabel ElgueroclaramuntAbstract:Despite the ubiquity and magnitude of food provision to wildlife, our understanding of its ecological effects and conservation implications is very limited. Supplementary feeding of ungulates, still one of the main paradigms of game management in Europe, occurs in natural areas on an enormous scale. We investigated the indirect effects of this practice on nest predation risk in the Polish Eastern Carpathians (Bieszczady Mountains). We hypothesized that the predators attracted to ungulate baiting sites would also forage for alternative prey nearby, increasing the nest predation risk for ground-nesting birds in the vicinity. We conducted a paired experiment by placing artificial nests (N = 120) in feeding and control sites (N = 12) at different distances from the ungulate feeding site. We also documented the use of three ungulate feeding sites by potential nest predators with automatic cameras. The proportion of depredated nests was 30% higher in the vicinity of feeding sites than at control sites (65%±31.5 vs 35%±32.1). The probability of a nest being depredated significantly increased with time and at shorter distances from the feeding site. We predicted that the area within 1-km distance from the feeding site would have a high risk (>0.5) of nest predation. We recorded 13 species of potential ground-nest predators at ungulate baiting sites. Most frequent were Eurasian jays Garrulus glandarius, mice and voles Muroidea, ravens Corvus corax, brown bears Ursus arctos, and wild boar Sus scrofa. Nest predators made most use of supplementary feeding sites (82% pictures with predators vs 8% with ungulates, the target group). Our study alerts of the impacts of ungulate feeding on alternative prey; this is of special concern when affecting protected species. We urge for a sensible management of ungulate feeding, which considers potential indirect effects on other species and the spatial and temporal components of food provision.
Clayton Nicola - One of the best experts on this subject based on the ideXlab platform.
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Exploring the perceptual inabilities of Eurasian jays (Garrulus glandarius) using magic effects.
'Organisation for Economic Co-Operation and Development (OECD)', 2021Co-Authors: Garcia-pelegrin Elias, Schnell Alexandra, Wilkins Clive, Clayton NicolaAbstract:In recent years, scientists have begun to use magic effects to investigate the blind spots in our attention and perception [G. Kuhn, Experiencing the Impossible: The Science of Magic (2019); S. Macknik, S. Martinez-Conde, S. Blakeslee, Sleights of Mind: What the Neuroscience of Magic Reveals about Our Everyday Deceptions (2010)]. Recently, we suggested that similar techniques could be transferred to nonhuman animal observers and that such an endeavor would provide insight into the inherent commonalities and discrepancies in attention and perception in human and nonhuman animals [E. Garcia-Pelegrin, A. K. Schnell, C. Wilkins, N. S. Clayton, Science 369, 1424-1426 (2020)]. Here, we performed three different magic effects (palming, French drop, and fast pass) to a sample of six Eurasian jays (Garrulus glandarius). These magic effects were specifically chosen as they utilize different cues and expectations that mislead the spectator into thinking one object has or has not been transferred from one hand to the other. Results from palming and French drop experiments suggest that Eurasian jays have different expectations from humans when observing some of these effects. Specifically, Eurasian jays were not deceived by effects that required them to expect an object to move between hands when observing human hand manipulations. However, similar to humans, Eurasian jays were misled by magic effects that utilize fast movements as a deceptive action. This study investigates how another taxon perceives the magician's techniques of deception that commonly deceive humans
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Erratum: The development of support intuitions and object causality in juvenile Eurasian jays (Garrulus glandarius).
'Organisation for Economic Co-Operation and Development (OECD)', 2017Co-Authors: Davidson Gabrielle, Loissel Elsa, Harrison, Rachael Miller, Cheke Lucy, Clayton NicolaAbstract:Knowledge about the causal relationship between objects has been studied extensively in human infants, and more recently in adult animals using differential looking time experiments. How knowledge about object support develops in non-human animals has yet to be explored. Here, we studied the ontogeny of support relations in Eurasian jays (Garrulus glandarius), a bird species known for its sophisticated cognitive abilities. Using an expectancy violation paradigm, we measured looking time responses to possible and impossible video and image stimuli. We also controlled for experience with different support types to determine whether the emergence of support intuitions is dependent upon specific interactions with objects, or if reasoning develops independently. At age 9 months, birds looked more at a tool moving a piece of cheese that was not in contact than one that was in direct contact. By the age of 6 months, birds that had not experienced string as a support to hold up objects looked more at impossible images with string hanging from below (unsupported), rather than above (supported). The development of support intuitions may be independent of direct experience with specific support, or knowledge gained from interactions with other objects may be generalised across contexts
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The development of support intuitions and object causality in juvenile Eurasian jays ($\textit{Garrulus glandarius}$)
'Organisation for Economic Co-Operation and Development (OECD)', 2017Co-Authors: Davidson Gabrielle, Harrison, Rachael Miller, Cheke Lucy, Loissel E, Clayton NicolaAbstract:Knowledge about the causal relationship between objects has been studied extensively in human infants, and more recently in adult animals using differential looking time experiments. How knowledge about object support develops in non-human animals has yet to be explored. Here, we studied the ontogeny of support relations in Eurasian jays ($\textit{Garrulus glandarius}$), a bird species known for its sophisticated cognitive abilities. Using an expectancy violation paradigm, we measured looking time responses to possible and impossible video and image stimuli. We also controlled for experience with different support types to determine whether the emergence of support intuitions is dependent upon specific interactions with objects, or if reasoning develops independently. At age 9 months, birds looked more at a tool moving a piece of cheese that was not in contact than one that was in direct contact. By the age of 6 months, birds that had not experienced string as a support to hold up objects looked more at impossible images with string hanging from below (unsupported), rather than above (supported). The development of support intuitions may be independent of direct experience with specific support, or knowledge gained from interactions with other objects may be generalised across contexts.European Research Council under the European Union’s Seventh Framework Programme (FP7/2007–2013)/ERC Grant Agreement No. 339993
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Eurasian jays (Garrulus glandarius) conceal caches from onlookers.
'Organisation for Economic Co-Operation and Development (OECD)', 2014Co-Authors: Legg Edward, Clayton NicolaAbstract:Animals that cache food risk having their stored food pilfered by conspecifics. Previous research has shown that a number of food-caching species of corvid use strategies that decrease the probability of conspecifics pilfering their caches. In this experiment, we investigated whether Eurasian jays (Garrulus glandarius) would choose between caching behind an opaque and caching behind a transparent barrier whilst being observed by a conspecific. If caching in out-of-sight locations is a strategy to prevent conspecifics from pilfering these caches, then the jays should place a greater proportion of caches behind the opaque barrier when being observed than when caching in private. In accordance with this prediction, jays cached a greater proportion of food behind the opaque barrier when they were observed than when they cached in private. These results suggest that Eurasian jays may opt to cache in out-of-view locations to reduce the likelihood of conspecifics pilfering their caches
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Can male Eurasian jays disengage from their own current desire to feed the female what she wants?
'Organisation for Economic Co-Operation and Development (OECD)', 2014Co-Authors: Ostojić Ljerka, Cheke Lucy, Legg, Edward W, Shaw, Rachael C, Mendl Michael, Clayton NicolaAbstract:Humans' predictions of another person's behaviour are regularly influenced by what they themselves might know or want. In a previous study, we found that male Eurasian jays (Garrulus glandarius) could cater for their female partner's current desire when sharing food with her. Here, we tested the extent to which the males' decisions are influenced by their own current desire. When the males' and female's desires matched, males correctly shared the food that was desired by both. When the female's desire differed from their own, the males' decisions were not entirely driven by their own desires, suggesting that males also took the female's desire into account. Thus, the male jays' decisions about their mates' desires are partially biased by their own desire and might be based upon similar processes as those found in humans
