Mostrando 161 - 180 Resultados de 8,508 Para Buscar '"Barnes"', tiempo de consulta: 0.44s Limitar resultados
  1. 161
    por Edut, Shahaf, Eilam, David
    Publicado 2003
    “…The present study was designed to follow the attacks of a barn owl (Tyto alba) on common spiny mice (Acomys cahirinus) and social voles (Microtus socialis guntherei), in order to reveal the correspondence between the behavior of the owl, the risk level at each phase of the owl's attack, and the defensive behavior of the rodents. …”
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  2. 162
    “…Here, we investigated variation in breeding phenology in relation to Clock genetic diversity in a long-distance migratory bird, the barn swallow (Hirundo rustica). METHODOLOGY/PRINCIPAL FINDINGS: In a sample of 922 adult barn swallows from a single population breeding in Italy we found one very common (Q(7)) and three rare (Q(5), Q(6), Q(8)) length variants of a functionally significant polyglutamine repeat. …”
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  3. 163
    “…On the whole, our findings indicate that biomarkers of protein oxidation closely track the short-term variation in breeding stage of both male and female barn swallows. Moreover, the higher protein OD levels observed among females compared to males suggest that egg laying entails oxidative costs, which might negatively affect female residual reproductive value.…”
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  4. 164
  5. 165
    “…We tested this hypothesis in the East-Mediterranean barn swallow (Hirundo rustica transitiva), in which males have been shown to express two uncorrelated sexual signals: red-brown ventral coloration, and long tail streamers. …”
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  6. 166
    “…Juvenile barn owls readily adapt to prismatic spectacles, whereas adult owls living under standard aviary conditions do not. …”
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  7. 167
    “…Furthermore, we compared structural properties of Ta6 of barn swallows from six European populations. Finally, we determined the relationship between feather growth bars width (GBW) and the structural properties of tail feathers. …”
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  8. 168
  9. 169
    “…The major cervical muscles were identified by gross dissection of cadavers of the American barn owl (Tyto furcata pratincola), and their origin, courses, and insertion were traced. …”
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  10. 170
    “…Yet, knowledge of fundamental aspects of telomere biology under natural selection regimes, including sex- and context-dependent variation in early-life, and the covariation between telomere dynamics and growth, is scant. In this study of barn swallows (Hirundo rustica) we investigated the sex-dependent telomere erosion during nestling period, and the covariation between relative telomere length and body and plumage growth. …”
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  11. 171
  12. 172
    “…Due to mainly opportunistic hunting behaviour of Barn owl can be its diet composition used for assessing local structure of small-mammal community. …”
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  13. 173
    “…For E. coli, the concentration was higher on wooden floors than on concrete floors and in the summer than in the fall, and it was lower in postsanitation samples from disinfected barns than in presanitation samples from dry-cleaned barns and in the winter than in the fall. …”
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  14. 174
    “…Here, we examined whether male barn owls (Tyto alba) breeding in low-quality habitats increased their parental effort to successfully complete offspring rearing or limited their investment by paying a fitness cost while saving energy for the future. …”
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  15. 175
  16. 176
    por Giral, José
    Publicado 1979
    Libro
  17. 177
    por Curtis, Helena
    Publicado 1993
    Libro
  18. 178
    por Barnes, Julian
    Publicado 2010
    Materias: “…Barnes, Julian Psicología.…”
    Libro
  19. 179
    por Barnes, Julian
    Publicado 2005
    Libro
  20. 180
    por Haymaker, Webb, 1902-
    Publicado 1953
    Libro
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