Mostrando 10 resultados de: 45
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:scopusColour change in a structural ornament is related to individual quality, parasites and mating patterns in the blue tit
ArticleAbstract: Carry-over effects refer to processes that occur in one season and influence fitness in the followinPalabras claves:Achromatic colouration, Body mass, Life-history theory, Sexual selection, Signalling, Structural colourationAutores:Badás E.P., Juan Rivero-De-Aguilar, Martínez J., Merino S., Ponce C., Stevens M.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: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:scopusDeterminants of abundance and effects of blood-sucking flying insects in the nest of a hole-nesting bird
ArticleAbstract: Compared to non-flying nest-dwelling ectoparasites, the biology of most species of flying ectoparasiPalabras claves:Biting midges, black flies, Blood parasite-vector-vertebrate host relationship, Cyanistes caeruleus, Nest massAutores:Juan Moreno, Lobato E., Martínez-De La Puente J., Merino S., Morales J., Moreno J., Tomás Gutierrez, G.Fuentes:googlescopusConsequences of nest reuse for parasite burden and female health and condition in blue tits, Cyanistes caeruleus
ArticleAbstract: Research on the costs of nest reuse is central to understanding the population ecology and evolutionPalabras claves:blood parasites, Blue tit, cavity nesting, Cyanistes caeruleus, ectoparasites, host-parasite interaction, nest reuse, nestbox, old nest removal, Parasitism costsAutores:Juan Moreno, Merino S., Morales J., Moreno J., Tomás Gutierrez, G.Fuentes:googlescopusCorticosterone metabolites in blue tit and pied flycatcher droppings: Effects of brood size, ectoparasites and temperature
ArticleAbstract: The hypothalamic-pituitary-adrenal (HPA) axis of birds induces the secretion of corticosterone (CORTPalabras claves:Brood size, Corticosterone, Cyanistes caeruleus, Droppings, ectoparasites, Ficedula hypoleuca, Parus caeruleus, weather conditionsAutores:Kuchar A., Lobato E., Martínez-De La Puente J., Merino S., Morales J., Moreno J., Möstl E., Osorno J.L., Tomás Gutierrez, G.Fuentes:scopusCosts and benefits of early reproduction: Haemoproteus prevalence and reproductive success of infected male pied flycatchers in a montane habitat in central spain
ArticleAbstract: Laying date is a key factor in avian reproductive ecology. Benefits of early breeding are importantPalabras claves:Autores:De La Puente J.M., Lobato E., Merino S., Morales J., Moreno J., Ruiz-de-Castañeda R., Tomás Gutierrez, G.Fuentes:scopus