Mostrando 10 resultados de: 59
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Journal of Avian Biology(10)
Animal Behaviour(5)
Behavioral Ecology(3)
Journal of Animal Ecology(3)
Journal of Ornithology(3)
Changes in Haemoproteus sex ratios: Fertility insurance or differential sex lifespan?
ArticleAbstract: There is little direct evidence of the fitness effects of changes in malaria gametocyte sex ratio. GPalabras claves:Gametocyte sex ratios, Haemoproteus majoris, Haemospororin parasites, Intensity of infection, Malaria parasites, Parus caeruleusAutores:Arriero E., Folgueira C., Merino S., Moreno J., Sanz J.J., Tomás Gutierrez, G.Fuentes:scopusClutch size and egg volume in great tits (Parus major) increase under low intensity electromagnetic fields: A long-term field study
ArticleAbstract: Exposure to electromagnetic fields (EMFs) can affect a wide range of biological processes, includingPalabras claves:Egg size, Environmental pollutants, parental investment, Power lines, Wild birdsAutores:Barba E., Martínez J., Merino S., Tomás Gutierrez, G.Fuentes:scopusCollection and analysis of blood samples to detect stress proteins in wild birds
ArticleAbstract: The blood stress protein response can be used to evaluate physiological or environmental stress in iPalabras claves:Blood sampling, centrifugation, freezing, Heat shock proteins, stress response, WESTERN BLOTAutores:Martínez J., Merino S., Tomás Gutierrez, G.Fuentes:scopusAssessing behavioral sex differences to chemical cues of predation risk while provisioning nestlings in a hole-nesting bird
ArticleAbstract: Birds can assess nest predation risk and adjust their parental activity accordingly. Risk taking behPalabras claves:Autores:Amo L., Saavedra I., Tomás Gutierrez, G.Fuentes:scopusAssociations between immune parameters, parasitism, and stress in breeding pied flycatcher (Ficedula hypoleuca) females
ArticleAbstract: There are two major interpretations of serum IgY concentration in wild birds. On the one hand, it haPalabras claves:Autores:Garamszegi L.Z., Juan Moreno, Martínez J., Merino S., Morales J., Moreno J., Tomás Gutierrez, G.Fuentes:googlescopusBegging and ectoparasite attraction
ArticleAbstract: Honesty of offspring begging behaviours is the keystone to understanding the evolution of parent-offPalabras claves:Acoustic communication, Auditory cues, Begging costs, Ectoparasite attraction, Honest signalling, host location mechanisms, Interspecific eavesdropping, Nestling begging calls, Parent-offspring conflict, PhonotaxisAutores:Soler J.J., Tomás Gutierrez, G.Fuentes:rraaescopusAntimicrobial activity of nest-lining feathers is enhanced by breeding activity in avian nests
ArticleAbstract: The use of feathers as nest material has been proposed as a kind of self-medication strategy becausePalabras claves:antimicrobial activity, Eggshell bacterial load, Feather nest material, Incubation behavior, Keratinolytic bacteria, Spotless starlingAutores:Ruiz-Castellano C., Ruiz-Rodríguez M., Soler J.J., Tomás Gutierrez, G.Fuentes:scopusAntimicrobial capacity is related to body colouration and reproductive success in female spotless starlings
ArticleAbstract: Pathogenic microorganisms select for a plethora of defensive mechanisms on their hosts. In males ofPalabras claves:animal communication, antimicrobial capacity, antimicrobial defences, innate humoral immunity, sexual selection in females, Sturnus unicolorAutores:Azcárate-García M., Díaz-Lora S., Pérez-Contreras T., Ruiz-Castellano C., Ruiz-Rodríguez M., Soler J.J., Tomás Gutierrez, G.Fuentes:scopusA simple trapping method to estimate abundances of blood-sucking flying insects in avian nests
OtherAbstract:Palabras claves:Birds, Biting midges, blackflies, blood parasite-insect vector-vertebrate host relationships, Ceratopogonidae, Culicoides, distance to water sources, insecticide treatment, sampling methods, SimuliidaeAutores:Juan Moreno, Lobato E., Martínez-De La Puente J., Merino S., Morales J., Moreno J., Tomás Gutierrez, G.Fuentes:googlescopusA trade-off between two resource-demanding functions: Post-nuptial moult and immunity during reproduction in male pied flycatchers
ArticleAbstract: 1. Costs of reproduction might be mediated by a resource-allocation trade-off between immunity and rPalabras claves:H/L ratio, HSP, immunity, Moult, Moult-breeding overlap, Pied FlycatcherAutores:Merino S., Moreno J., Sanz J.J., Tomás Gutierrez, G.Fuentes:scopus