By M. Brock Fenton, Alan D Grinnell, Arthur N. Popper, Richard R. Fay (eds.)
Arguably biosonar is without doubt one of the ‘eye-opening’ discoveries approximately animal habit and the auditory platforms of echolocators are entrance and heart during this tale. Echolocation through bats has confirmed to be a digital gold mine for colleagues learning neurobiology, whereas delivering many wealthy examples of its impression on different parts of bats’ lives. during this quantity we in brief assessment the historical past of the subject (reminding readers of the 1995 listening to by way of Bats). We use a bankruptcy on new findings within the phylogeny of bats to place the knowledge that follows in an evolutionary context. This comprises an exam of the potential roles of Prestin and FoxP2 genes and numerous anatomical beneficial properties affecting bat vocalizations. We introduce contemporary paintings at the function of noseleafs, ears, and different facial elements at the focusing of sound and number of echoes.
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Additional resources for Bat Bioacoustics
Simmons, J. , & Riquimaroux, H. (2010). FM broadcasting bats shift frequencies to avoid broadcast-echo ambiguity in clutter. Proceedings of the National Academy of Sciences of the USA, 107, 7048–7053. , & Chang, H-W. (2013). High duty cycle to low duty cycle: Echolocation behaviour of the hipposiderid bat Coelops frithii. PLoS ONE, 8(5), e62938. , & Moritz, T. (2011). Hemprich’s long-eared bat (Otonycteris hemprichii) as a predator of scorpions: Whispering echolocation, passive gleaning and prey selection.
Gene sequence alignments revealed greater amino acid variation coupled with accelerated and divergent selection pressure in bats compared to other mammals, consistent with a role in echolocation. Further support for the involvement of FoxP2 in echolocation comes from brain expression data, which show expression in the anterior cingulate cortex (ACC) and suprageniculate nucleus of echolocating bats at much higher levels than in Old World fruit bats (Metzner and Schuller 2010). Building on this result, Chen et al.
However, despite this comprehensive data set, it was still not possible to fully resolve the branching pattern within Laurasiatheria, arguably because of incomplete lineage sorting resulting from the rapid radiation and divergence of the laurasiatherian lineages (Springer et al. 2003; Romiguier et al. 2013). This has made it difficult to conclude which laurasiatherian family is the sister group to the bats and, therefore, has direct implications for interpreting how and when flight and echolocation originated in mammals.
Bat Bioacoustics by M. Brock Fenton, Alan D Grinnell, Arthur N. Popper, Richard R. Fay (eds.)