Publications by authors named "Laureline Durand"
Article Synopsis
- Phenotypic differences in animals can arise from genetic factors or adaptations to their environment, but how social environments affect these traits is less understood.
- In a study involving king penguins, researchers exchanged eggs between high-density and low-density breeding pairs to assess the impact of social environments on both adult and chick traits.
- Results revealed that adults in high-density areas exhibited increased stress-related behaviors, while chicks were more positively influenced by their rearing environment, showing better growth and survival, regardless of their genetic background.
Because telomere length and dynamics relate to individual growth, reproductive investment and survival, telomeres have emerged as possible markers of individual quality. Here, we tested the hypothesis that, in species with parental care, parental telomere length can be a marker of parental quality that predicts offspring phenotype and survival. In king penguins (Aptenodytes patagonicus), we experimentally swapped the single egg of 66 breeding pairs just after egg laying to disentangle the contribution of prelaying parental quality (e.
View Article and Find Full Text PDFIn colonial birds, the recognition between parents and their offspring is essential to ensure the exclusivity of parental care. Although individual vocal recognition seems to be a key component of parent-chicks recognition, few studies assessed the period when the emergence of the vocal signature takes place. The present study investigated the acoustic cues of signaler identity carried in the begging calls at three stages of development in zebra finches (Taeniopygia guttata castanotis), a colonial species which experiences food-dependence after fledging.
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