Base de dados : MEDLINE
Pesquisa : B01.050.150.900.248.620.750.150 [Categoria DeCS]
Referências encontradas : 410 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 41 ir para página                         

  1 / 410 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28922382
[Au] Autor:Canestrari D; Bolopo D; Turlings TCJ; Röder G; Marcos JM; Baglione V
[Ad] Endereço:Department of Biology of Organisms and Systems (BOS), University of Oviedo, Oviedo, Spain.
[Ti] Título:Formal comment to Soler et al.: Great spotted cuckoo nestlings have no antipredatory effect on magpie or carrion crow host nests in southern Spain.
[So] Source:PLoS One;12(9):e0184446, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Aves
Passeriformes
[Mh] Termos MeSH secundário: Animais
Corvos
Comportamento de Nidação
Espanha
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; COMMENT
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171106
[Lr] Data última revisão:
171106
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170919
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0184446


  2 / 410 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28706023
[Au] Autor:Boeckle M; Clayton NS
[Ad] Endereço:Department of Psychology, University of Cambridge, Cambridge, UK. markus.boeckle@gmail.com nsc22@cam.ac.uk.
[Ti] Título:A raven's memories are for the future.
[So] Source:Science;357(6347):126-127, 2017 07 14.
[Is] ISSN:1095-9203
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Corvos
Memória
Comportamento de Utilização de Ferramentas
[Mh] Termos MeSH secundário: Animais
[Pt] Tipo de publicação:JOURNAL ARTICLE; COMMENT
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171023
[Lr] Data última revisão:
171023
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170715
[St] Status:MEDLINE
[do] DOI:10.1126/science.aan8802


  3 / 410 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28422953
[Au] Autor:Soler M; de Neve L; Roldán M; Pérez-Contreras T; Soler JJ
[Ad] Endereço:Departamento de Zoología, Facultad de Ciencias, Universidad de Granada, Granada, Spain.
[Ti] Título:Great spotted cuckoo nestlings have no antipredatory effect on magpie or carrion crow host nests in southern Spain.
[So] Source:PLoS One;12(4):e0173080, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Host defences against cuckoo parasitism and cuckoo trickeries to overcome them are a classic example of antagonistic coevolution. Recently it has been reported that this relationship may turn to be mutualistic in the case of the carrion crow (Corvus corone) and its brood parasite, the great spotted cuckoo (Clamator glandarius), given that experimentally and naturally parasitized nests were depredated at a lower rate than non-parasitized nests. This result was interpreted as a consequence of the antipredatory properties of a fetid cloacal secretion produced by cuckoo nestlings, which presumably deters predators from parasitized host nests. This potential defensive mechanism would therefore explain the detected higher fledgling success of parasitized nests during breeding seasons with high predation risk. Here, in a different study population, we explored the expected benefits in terms of reduced nest predation in naturally and experimentally parasitized nests of two different host species, carrion crows and magpies (Pica pica). During the incubation phase non-parasitized nests were depredated more frequently than parasitized nests. However, during the nestling phase, parasitized nests were not depredated at a lower rate than non-parasitized nests, neither in magpie nor in carrion crow nests, and experimental translocation of great spotted cuckoo hatchlings did not reveal causal effects between parasitism state and predation rate of host nests. Therefore, our results do not fit expectations and, thus, do not support the fascinating possibility that great spotted cuckoo nestlings could have an antipredatory effect for host nestlings, at least in our study area. We also discuss different possibilities that may conciliate these with previous results, but also several alternative explanations, including the lack of generalizability of the previously documented mutualistic association.
[Mh] Termos MeSH primário: Corvos/fisiologia
Comportamento de Nidação/fisiologia
Passeriformes/fisiologia
Comportamento Predatório/fisiologia
[Mh] Termos MeSH secundário: Animais
Animais Recém-Nascidos
Corvos/parasitologia
Espanha
Simbiose/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170505
[Lr] Data última revisão:
170505
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170420
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0173080


  4 / 410 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28355292
[Au] Autor:Majkic A; Evans S; Stepanchuk V; Tsvelykh A; d'Errico F
[Ad] Endereço:Centre National de la Recherche Scientifique, UMR 5199 - PACEA, Université de Bordeaux, Pessac, France.
[Ti] Título:A decorated raven bone from the Zaskalnaya VI (Kolosovskaya) Neanderthal site, Crimea.
[So] Source:PLoS One;12(3):e0173435, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:We analyze a radius bone fragment of a raven (Corvus corax) from Zaskalnaya VI rock shelter, Crimea. The object bears seven notches and comes from an archaeological level attributed to a Micoquian industry dated to between 38 and 43 cal kyr BP. Our study aims to examine the degree of regularity and intentionality of this set of notches through their technological and morphometric analysis, complemented by comparative experimental work. Microscopic analysis of the notches indicate that they were produced by the to-and-fro movement of a lithic cutting edge and that two notches were added to fill in the gap left between previously cut notches, probably to increase the visual consistency of the pattern. Multivariate analysis of morphometric data recorded on the archaeological notches and sets of notches cut by nine modern experimenters on radii of domestic turkeys shows that the variations recorded on the Zaskalnaya set are comparable to experimental sets made with the aim of producing similar, parallel, equidistant notches. Identification of the Weber Fraction, the constant that accounts for error in human perception, for equidistant notches cut on bone rods and its application to the Zaskalnaya set of notches and thirty-six sets of notches incised on seventeen Upper Palaeolithic bone objects from seven sites indicate that the Zaskalnaya set falls within the range of variation of regularly spaced experimental and Upper Palaeolithic sets of notches. This suggests that even if the production of the notches may have had a utilitarian reason the notches were made with the goal of producing a visually consistent pattern. This object represents the first instance of a bird bone from a Neanderthal site bearing modifications that cannot be explained as the result of butchery activities and for which a symbolic argument can be built on direct rather than circumstantial evidence.
[Mh] Termos MeSH primário: Osso e Ossos/anatomia & histologia
Fósseis
Homem de Neandertal/psicologia
[Mh] Termos MeSH secundário: Animais
Arqueologia/métodos
Corvos/anatomia & histologia
História Antiga
Seres Humanos
Microscopia
Análise Multivariada
Paleontologia/métodos
Federação Russa
[Pt] Tipo de publicação:HISTORICAL ARTICLE; JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170824
[Lr] Data última revisão:
170824
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170330
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0173435


  5 / 410 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28276133
[Au] Autor:Jamborova I; Dolejska M; Zurek L; Townsend AK; Clark AB; Ellis JC; Papousek I; Cizek A; Literak I
[Ad] Endereço:Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic.
[Ti] Título:Plasmid-mediated resistance to cephalosporins and quinolones in Escherichia coli from American crows in the USA.
[So] Source:Environ Microbiol;19(5):2025-2036, 2017 May.
[Is] ISSN:1462-2920
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:American crow (Corvus brachyrhynchos) faeces were tested for Escherichia coli with plasmid-mediated quinolone resistance (PMQR), extended-spectrum beta-lactamases (ESBL) and AmpC beta-lactamases. A total of 590 faecal samples were collected at four roosting sites in the USA and cultivated on selective media. Pulsed-field gel electrophoresis (PFGE) and multi-locus sequence typing (MLST) were performed to assess clonality. Transferability of resistance genes was studied using conjugation and transformation bioassays. In total, 78 (13%, n = 590) cefotaxime-resistant isolates were obtained, of which 66 and 12 displayed AmpC and ESBL phenotypes, respectively. Fifty-four AmpC-producing isolates carried bla . Isolates producing ESBLs contained genes bla (5 isolates), bla (4), bla (2) and bla (1). Ninety isolates (15%, n = 590) with reduced susceptibility to ciprofloxacin were obtained, among which 14 harboured PMQR genes aac(6')-Ib-cr (4 isolates), qnrB19 (3), qnrS1 (2), qnrA1 (2), qnrB2 (1), qnrB6 (1) and qnrD3 (1). High genetic diversity was revealed by PFGE and MLST. Epidemiologically important E. coli clones (e.g., ST131, ST405) were identified. Plasmids carrying bla were assigned predominantly to IncA/C (8 plasmids), IncI1/ST23 (5) and IncI1/ST12 (3). The study demonstrates a widespread occurrence of E. coli with ESBL, AmpC and PMQR genes associated with clinically important multidrug-resistant clones and epidemic plasmids, in American crows.
[Mh] Termos MeSH primário: Proteínas de Bactérias/genética
Cefotaxima/farmacologia
Ciprofloxacino/farmacologia
Corvos/microbiologia
Proteínas de Escherichia coli/genética
Escherichia coli/efeitos dos fármacos
Escherichia coli/genética
beta-Lactamases/genética
[Mh] Termos MeSH secundário: Animais
Antibacterianos
Doenças das Aves/microbiologia
Eletroforese em Gel de Campo Pulsado
Infecções por Escherichia coli
Seres Humanos
Testes de Sensibilidade Microbiana
Tipagem de Sequências Multilocus
Plasmídeos/genética
Estados Unidos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Bacterial Proteins); 0 (Escherichia coli Proteins); 0 (Qnr protein, E coli); 5E8K9I0O4U (Ciprofloxacin); EC 3.5.2.6 (AmpC beta-lactamases); EC 3.5.2.6 (beta-Lactamases); N2GI8B1GK7 (Cefotaxime)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170310
[St] Status:MEDLINE
[do] DOI:10.1111/1462-2920.13722


  6 / 410 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28220657
[Au] Autor:Thomas-Bachli AL; Pearl DL; Berke O; Parmley EJ; Barker IK
[Ad] Endereço:Department of Population Medicine, University of Guelph, Guelph, ON, Canada.
[Ti] Título:A geographic study of West Nile virus in humans, dead corvids and mosquitoes in Ontario using spatial scan statistics with a survival time application.
[So] Source:Zoonoses Public Health;64(7):e81-e89, 2017 Nov.
[Is] ISSN:1863-2378
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Surveillance of West Nile virus (WNv) in Ontario has included passive reporting of human cases and testing of trapped mosquitoes and dead birds found by the public. The dead bird surveillance programme was limited to testing within a public health unit (PHU) until a small number of birds test positive. These dead corvid and mosquito surveillance programmes have not been compared for their ability to provide early warning in geographic areas where human cases occur each year. Spatial scan statistics were applied to time-to-event survival data based on first cases of WNv in found dead corvids, mosquitoes and humans. Clusters identified using raw data were compared to clusters based on model-adjusted survival times to evaluate whether geographic and sociodemographic factors influenced their distribution. Statistically significant (p < .05) space-time clusters of PHUs with faster time to detection were found using each surveillance data stream. During 2002-2004, the corvid surveillance programme outperformed the mosquito programme in terms of time to WNv detection, while the clusters of first-positive mosquito pools were more spatially similar to first human cases. In 2006, a cluster of first-positive dead corvids was located in northern PHUs and preceded a cluster of early human cases that was identified after controlling for the influence of geographic region and sociodemographic profile.
[Mh] Termos MeSH primário: Corvos/virologia
Culicidae/virologia
Febre do Nilo Ocidental/epidemiologia
Vírus do Nilo Ocidental/isolamento & purificação
[Mh] Termos MeSH secundário: Animais
Doenças das Aves
Monitoramento Epidemiológico
Mapeamento Geográfico
Seres Humanos
Ontário/epidemiologia
Febre do Nilo Ocidental/virologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171109
[Lr] Data última revisão:
171109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170222
[St] Status:MEDLINE
[do] DOI:10.1111/zph.12350


  7 / 410 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28199765
[Au] Autor:Perec-Matysiak A; Wesolowska M; Lesnianska K; Bunkowska-Gawlik K; Hildebrand J; Kicia M
[Ad] Endereço:Department of Parasitology, Institute of Genetics and Microbiology, University of Wroclaw, Przybyszewskiego 63/77, Wroclaw, 51-148, Poland.
[Ti] Título:Survey for Zoonotic Microsporidian Pathogens in Wild Living Urban Rooks (Corvus frugilegus).
[So] Source:J Eukaryot Microbiol;64(5):721-724, 2017 Sep.
[Is] ISSN:1550-7408
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Microsporidia are opportunistic pathogens in nature infecting all animal phyla. There is a potential risk of microsporidian spores transmission from urban rooks inhabiting some metropolitan cities to people through casual interactions. The aim of this study was to identify microsporidia species in the droppings of rooks in Wroclaw, Poland. A total of 15 collective sets of droppings were examined using nested-PCR method. Amplification of ITS rRNA gene revealed the presence of Enterocytozoon bieneusi D, Peru 6, and Encephalitozoon hellem 1A genotypes. This study indicates that excreta of urban rooks can be an important source of human infection with these pathogens.
[Mh] Termos MeSH primário: Corvos/microbiologia
DNA Ribossômico/genética
Microsporídios/classificação
[Mh] Termos MeSH secundário: Animais
DNA Fúngico/genética
Fezes/microbiologia
Genótipo
Microsporídios/genética
Filogenia
Polônia
Reação em Cadeia da Polimerase
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Fungal); 0 (DNA, Ribosomal)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170919
[Lr] Data última revisão:
170919
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170216
[St] Status:MEDLINE
[do] DOI:10.1111/jeu.12402


  8 / 410 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28145581
[Au] Autor:Laiolo P
[Ad] Endereço:Research Unit of Biodiversity (UO, CSIC, PA), Oviedo University, Campus de Mieres, 33600, Mieres, Spain.
[Ti] Título:Phenotypic similarity in sympatric crow species: Evidence of social convergence?
[So] Source:Evolution;71(4):1051-1060, 2017 Apr.
[Is] ISSN:1558-5646
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Crows, rooks, and ravens (Corvus spp.) display marked morphological and voice similarities that have been hypothesized to stem from competitive interactions, as a case of nonaposematic mimicry. Here, I test predictions of the mimicry hypothesis at the macrovolutionary scale, examining whether species morphological and acoustic traits covary with those of coexisting congeners, and whether phenotypic similarity has facilitated the coexistence of related species after secondary contact. Body size and the temporal patterns of the commonest call display high levels of similarity among sympatric species, even after controlling for the effect of shared climate and habitat, and phylogenetic constraints in the production of variation. When sister species differed in these acoustic and morphological traits, their transition to secondary sympatry was delayed relative to those with more similar traits. No similarity was found in the sexual call of crows, suggesting that convergence occurs only when function does not favour maintenance of species-specific traits. Crow similarities in morphological and acoustic features may therefore be associated with coevolving interactions with congeners, in line with a broad array of studies documenting convergence among species that interact aggressively or forage communally.
[Mh] Termos MeSH primário: Comunicação Animal
Evolução Biológica
Corvos/anatomia & histologia
Corvos/fisiologia
Simpatria
[Mh] Termos MeSH secundário: Animais
Fenótipo
Filogenia
Comportamento Social
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170928
[Lr] Data última revisão:
170928
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170202
[St] Status:MEDLINE
[do] DOI:10.1111/evo.13195


  9 / 410 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:27922802
[Au] Autor:Sándor AD; Kalmár Z; Matei I; Ionica AM; Marcutan ID
[Ad] Endereço:Department of Parasitology and Parasitic Diseases, University of Agricultural Sciences and Veterinary Medicine , Cluj Napoca, Cluj, Romania .
[Ti] Título:Urban Breeding Corvids as Disseminators of Ticks and Emerging Tick-Borne Pathogens.
[So] Source:Vector Borne Zoonotic Dis;17(2):152-154, 2017 Feb.
[Is] ISSN:1557-7759
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Crows (Corvidae) are common city dwellers worldwide and are increasingly important subjects of epidemiology studies. Although their importance as hosts and transmitters of a number of zoonotic parasites and pathogens is well known, there are no studies on their importance as tick hosts. After mosquitoes, ticks are the most important vectors of zoonotic pathogens, especially for those causing emerging zoonotic diseases. Pathogenic bacteria, especially Borrelia spp., Rickettsia spp., and Anaplasma spp., vectored by ticks, are the cause for most vector-borne diseases in Europe. Here we report on ticks and tick-borne pathogens harbored by urban breeding crows. A total of 36 birds (33.33%, n = 108) hosted ticks, with 91 individual ticks belonging to 6 species (Haemaphysalis concinna, Haemaphysalis parva, Haemaphysalis punctata, Hyalomma marginatum, Ixodes arboricola, and Ixodes ricinus). Rickettsia spp. DNA was found in 6.6% of ticks and 1.9% of bird tissues, whereas Anaplasma phagocytophilum was found in 5.9% of ticks and 0.9% of birds. Two rickettsial genospecies were located, Rickettsia helvetica and Rickettsia monacensis. This is the first study to determine such a diverse tick spectrum feeding on urban corvids, while highlighting their importance as tick hosts and raising concerns about their potential risk to human health.
[Mh] Termos MeSH primário: Doenças das Aves/parasitologia
Corvos
Infestações por Carrapato/veterinária
Doenças Transmitidas por Carrapatos/veterinária
Carrapatos/microbiologia
[Mh] Termos MeSH secundário: Distribuição Animal
Animais
Doenças das Aves/epidemiologia
Cidades
Seres Humanos
Infestações por Carrapato/parasitologia
Doenças Transmitidas por Carrapatos/transmissão
Zoonoses
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170727
[Lr] Data última revisão:
170727
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161207
[St] Status:MEDLINE
[do] DOI:10.1089/vbz.2016.2054


  10 / 410 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:27838379
[Au] Autor:Greggor AL; Spencer KA; Clayton NS; Thornton A
[Ad] Endereço:Department of Psychology, University of Cambridge, UK; Department of Biological Sciences, Dartmouth College, USA. Electronic address: alg61@cam.ac.uk.
[Ti] Título:Wild jackdaws' reproductive success and their offspring's stress hormones are connected to provisioning rate and brood size, not to parental neophobia.
[So] Source:Gen Comp Endocrinol;243:70-77, 2017 Mar 01.
[Is] ISSN:1095-6840
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Many species show individual variation in neophobia and stress hormones, but the causes and consequences of this variation in the wild are unclear. Variation in neophobia levels could affect the number of offspring animals produce, and more subtly influence the rearing environment and offspring development. Nutritional deficits during development can elevate levels of stress hormones that trigger long-term effects on learning, memory, and survival. Therefore measuring offspring stress hormone levels, such as corticosterone (CORT), helps determine if parental neophobia influences the condition and developmental trajectory of young. As a highly neophobic species, jackdaws (Corvus monedula) are excellent for exploring the potential effects of parental neophobia on developing offspring. We investigated if neophobic responses, alongside known drivers of fitness, influence nest success and offspring hormone responses in wild breeding jackdaws. Despite its consistency across the breeding season, and suggestions in the literature that it should have importance for reproductive fitness, parental neophobia did not predict nest success, provisioning rates or offspring hormone levels. Instead, sibling competition and poor parental care contributed to natural variation in stress responses. Parents with lower provisioning rates fledged fewer chicks, chicks from larger broods had elevated baseline CORT levels, and chicks with later hatching dates showed higher stress-induced CORT levels. Since CORT levels may influence the expression of adult neophobia, variation in juvenile stress responses could explain the development and maintenance of neophobic variation within the adult population.
[Mh] Termos MeSH primário: Corticosterona/metabolismo
Corvos/fisiologia
Comportamento de Nidação/fisiologia
Transtornos Fóbicos/fisiopatologia
Reprodução/fisiologia
Comportamento Social
Estresse Fisiológico
[Mh] Termos MeSH secundário: Animais
Cruzamento
Feminino
Irmãos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
W980KJ009P (Corticosterone)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170928
[Lr] Data última revisão:
170928
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161114
[St] Status:MEDLINE



página 1 de 41 ir para página                         
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde