| spring vegetation phenology is a robust predictor of breeding date across broad landscapes: a multi-site approach using the corsican blue tit (cyanistes caeruleus). | the regulation of reproductive schedules is an important determinant of avian breeding success. in heterogeneous environments, the optimal breeding period may fluctuate temporally across habitats, often on a spatial scale much shorter than the average dispersal range of individuals. the synchronisation of reproductive events with the most favourable period at a given site therefore involves the integration of a suite of fine-scale environmental signals which contain information about future bree ... | 2010 | 20035434 |
| habitat-linked population genetic differentiation in the blue tit cyanistes caeruleus. | although the recent emergence of the field of landscape genetics has led to several studies investigating the effects of habitat composition between populations on genetic differentiation, much less is known on the impact of within-habitat ecological characteristics on levels of gene flow and genetic differentiation among populations. using data on 840 individuals sampled in 8 sites in corsica and 1 in southern france and analyzed at 10 microsatellite loci, we assessed the spatial and temporal p ... | 2012 | 23087385 |
| population genomic footprints of fine-scale differentiation between habitats in mediterranean blue tits. | linking population genetic variation to the spatial heterogeneity of the environment is of fundamental interest to evolutionary biology and ecology, in particular when phenotypic differences between populations are observed at biologically small spatial scales. here, we applied restriction-site associated dna sequencing (rad-seq) to test whether phenotypically differentiated populations of wild blue tits (cyanistes caeruleus) breeding in a highly heterogeneous environment exhibit genetic structu ... | 2016 | 26800038 |
| energetic and fitness costs of mismatching resource supply and demand in seasonally breeding birds. | by advancing spring leaf flush and ensuing food availability, climatic warming results in a mismatch between the timing of peak food supply and nestling demand, shifting the optimal time for reproduction in birds. two populations of blue tits (parus caeruleus) that breed at different dates in similar, but spatially distinct, habitat types in corsica and southern france provide a unique opportunity to quantify the energetic and fitness consequences when breeding is mismatched with local productiv ... | 2001 | 11283370 |
| circulating corticosterone levels in breeding blue tits parus caeruleus differ between island and mainland populations and between habitats. | little is known about whether adaptations to an insular life also involve adaptations in basal corticosterone levels or in the adrenocortical stress response, thus being part of a genetically based island syndrome. however, differences in corticosterone between island and mainland may also be a direct phenotypic response to differences in environmental conditions or may depend on individual characteristics of the animal such as body condition or parental investment. in this paper, we investigate ... | 2015 | 17617413 |