Posts by Romain Lefèvre
Classification of pig calls produced from birth to slaughter according to their emotional valence and context of production
Vocal expression of emotions has been observed across species and could provide a non-invasive and reliable means to assess animal emot...
Monetary value of live trade in a commonly traded primate, the long-tailed macaque, based on global trade statistics
Non-human primates (primates) are regarded as key research subjects for pre-clinical trials of several drugs aimed to alleviate human s...
Evaluating the need to habituate: modern approaches to field primatology during the COVID-19 pandemic and beyond
Although historically habituation has largely been the default method in field primatology, the COVID-19 pandemic has forced us to re-e...
Novel ideas to further expand the applicability of rhythm analysis
The temporal structure of animals’ acoustic signals can inform about context, urgency, species, individual identity, or geographical or...
Baleen whale prey consumption based on high-resolution foraging measurements
Baleen whales influence their ecosystems through immense prey consumption and nutrient recycling1,2,3. It is difficult to accurately ga...
A relationship between the characteristics of the oval nucleus of the mesopallium and parrot vocal response to playback
Correlations between differences in animal behavior and brain structures have been used to infer function of those structures. Brain re...
Scaling of oscillatory kinematics and Froude efficiency in baleen whales
High efficiency lunate-tail swimming with high-aspect-ratio lifting surfaces has evolved in many vertebrate lineages, from fish to ceta...
Follow the leader? Orange-fronted conures eavesdrop on conspecific vocal performance and utilise it in social decisions
Animals regularly use social information to make fitness-relevant decisions. Particularly in social interactions, social information ca...
Contingency and determinism in the evolution of bird song sound frequency
Sexual signals are archetypes of contingent evolution: hyper-diverse across species, often evolving fast and in unpredictable direction...
An exploratory investigation of glucocorticoids, personality and survival rates in wild and rehabilitated hedgehogs (Erinaceus europaeus) in Denmark
The European population of hedgehogs ( Erinaceus europaeus ) is declining. It is therefore essential to optimise conservation initiativ...