V. Menges's research while affiliated with Leibniz Institute for Zoo and Wildlife Research and other places

... The expected relationship between phenotype and formants has been validated in many mammal species (Briefer and McElligott 2011;Garcia et al. 2016Garcia et al. , 2017Garcia and Ravignani 2020), although the strength of the relationship was variable, and in some cases acoustic communication was found to be honest but imprecise (Sanvito et al. 2007a). In contrast, excluding a few exceptions (McElligott et al. 2006;Frey et al. 2011Frey et al. , 2020, most demonstrations of the structural link between phenotype and vocal tracts have come from studies that applied radiography or other imaging methods to sedated or dead subjects (Plotsky et al. 2013;Garcia et al. 2017;Volodin et al. 2017). Although those studies have provided accurate measurements of the vocal tract parts, being performed on sedated or dead subjects, they have only provided a static snapshot of the tract that may not be highly representative of what happens in naturally vocalizing animals. ...

... A proportion of the deployed collars will not yield the expected amount of data due to collar malfunctions, or because the animal dies or disperses outside of the study area. Accounting for this in advance means researchers should increase the target sample size by a buffer of at least 20% [26]. Further, if age or sex-specific estimates are desired (or if differences among such classes would otherwise confound inference), the sample size needs to be increased even further because the actual animals captured will inevitably not align with needs as they are likely unevenly dispersed among demographic groups. ...