scholarly journals Dynamic changes in display architecture and function across environments revealed by a systems approach to animal communication*

Evolution ◽  
2018 ◽  
Vol 72 (5) ◽  
pp. 1134-1145 ◽  
Author(s):  
Malcolm F. Rosenthal ◽  
Matthew R. Wilkins ◽  
Daizaburo Shizuka ◽  
Eileen A. Hebets
2019 ◽  
Vol 277 ◽  
pp. 178-185 ◽  
Author(s):  
Attila Oláh ◽  
Attila Kovács ◽  
Árpád Lux ◽  
Márton Tokodi ◽  
Szilveszter Braun ◽  
...  

2006 ◽  
Vol 298 (1) ◽  
pp. 155-166 ◽  
Author(s):  
Santhi Potireddy ◽  
Rita Vassena ◽  
Bela G. Patel ◽  
Keith E. Latham

Author(s):  
Dustin Reichard ◽  
Marine Drouilly ◽  
Danielle Whittaker ◽  
Stephen Ferguson

The study of animal communication has been dominated by a focus on signal types that are easily recognized and quantified by human observers. This approach has inevitably limited our ability to identify cryptic signals such as low-amplitude vocalizations and signals that transmit beyond the range of our sensory system, such as most olfactory signals. Only recently with the development of new technologies and less biased sampling techniques have we begun to unravel the importance and function of these non-traditional signal types. Here we report the results of two experiments focusing on poorly studied signals using a common songbird, the dark-eyed junco. We investigated the effect of low-amplitude song on male physiology and the occurrence of bill-wiping behavior during courtship and aggressive interactions. Preliminary results suggest that males do not alter their plasma testosterone or corticosterone levels in response to a song playback of high-amplitude or low-amplitude song, indicating that a stronger stimulus may be necessary to affect circulating hormones. Males that received intrusions of a live male or female conspecific performed significantly more bill-wiping in response to the female conspecific, suggesting that bill-wiping may be an important and overlooked courtship signal in this species.


Diabetes ◽  
1996 ◽  
Vol 45 (9) ◽  
pp. 1161-1167 ◽  
Author(s):  
A. M. Davalli ◽  
L. Scaglia ◽  
D. H. Zangen ◽  
J. Hollister ◽  
S. Bonner-Weir ◽  
...  

2010 ◽  
Vol 71 (2) ◽  
pp. 247-259 ◽  
Author(s):  
David R. Elliott ◽  
Julie D. Scholes ◽  
Steven F. Thornton ◽  
Athanasios Rizoulis ◽  
Steven A. Banwart ◽  
...  

2016 ◽  
Vol 283 (1826) ◽  
pp. 20152889 ◽  
Author(s):  
Eileen A. Hebets ◽  
Andrew B. Barron ◽  
Christopher N. Balakrishnan ◽  
Mark E. Hauber ◽  
Paul H. Mason ◽  
...  

Why animal communication displays are so complex and how they have evolved are active foci of research with a long and rich history. Progress towards an evolutionary analysis of signal complexity, however, has been constrained by a lack of hypotheses to explain similarities and/or differences in signalling systems across taxa. To address this, we advocate incorporating a systems approach into studies of animal communication—an approach that includes comprehensive experimental designs and data collection in combination with the implementation of systems concepts and tools. A systems approach evaluates overall display architecture, including how components interact to alter function, and how function varies in different states of the system. We provide a brief overview of the current state of the field, including a focus on select studies that highlight the dynamic nature of animal signalling. We then introduce core concepts from systems biology (redundancy, degeneracy, pluripotentiality, and modularity) and discuss their relationships with system properties (e.g. robustness, flexibility, evolvability). We translate systems concepts into an animal communication framework and accentuate their utility through a case study. Finally, we demonstrate how consideration of the system-level organization of animal communication poses new practical research questions that will aid our understanding of how and why animal displays are so complex.


1990 ◽  
Vol 104 (3) ◽  
pp. 457-465 ◽  
Author(s):  
Paul P. Lau ◽  
Michael A. Dubick ◽  
Gloria S.M. Yu ◽  
Paul R. Morrill ◽  
Michael C. Geokas

eLife ◽  
2017 ◽  
Vol 6 ◽  
Author(s):  
Jacqueline M Tabler ◽  
Maggie M Rigney ◽  
Gordon J Berman ◽  
Swetha Gopalakrishnan ◽  
Eglantine Heude ◽  
...  

Acoustic communication is fundamental to social interactions among animals, including humans. In fact, deficits in voice impair the quality of life for a large and diverse population of patients. Understanding the molecular genetic mechanisms of development and function in the vocal apparatus is thus an important challenge with relevance both to the basic biology of animal communication and to biomedicine. However, surprisingly little is known about the developmental biology of the mammalian larynx. Here, we used genetic fate mapping to chart the embryological origins of the tissues in the mouse larynx, and we describe the developmental etiology of laryngeal defects in mice with disruptions in cilia-mediated Hedgehog signaling. In addition, we show that mild laryngeal defects correlate with changes in the acoustic structure of vocalizations. Together, these data provide key new insights into the molecular genetics of form and function in the mammalian vocal apparatus.


Author(s):  
Emily M. Cohodes ◽  
Dylan G. Gee

The majority of anxiety disorders emerge during childhood and adolescence, a developmental period characterized by dynamic changes in frontolimbic circuitry. Frontolimbic circuitry plays a key role in fear learning and has been a focus of recent efforts to understand the neurobiological correlates of anxiety disorders across development. Although less is known about the neurobiological underpinnings of anxiety disorders in youth than in adults, studies of pediatric anxiety have revealed alterations in both the structure and function of frontolimbic circuitry. The amygdala, prefrontal cortex (PFC), anterior cingulate cortex (ACC), and hippocampus contribute to fear conditioning and extinction, and interactions between these regions have been implicated in anxiety during development. Specifically, children and adolescents with anxiety disorders show altered amygdala volumes and exhibit heightened amygdala activation in response to neutral and fearful stimuli, with the magnitude of signal change in amygdala reactivity corresponding to the severity of symptomatology. Abnormalities in the PFC and ACC and their connections with the amygdala may reflect weakened top-down control or compensatory efforts to regulate heightened amygdala reactivity associated with anxiety. Taken together, alterations in frontolimbic connectivity are likely to play a central role in the etiology and maintenance of anxiety disorders. Future studies should aim to translate the emerging understanding of the neurobiological bases of pediatric anxiety disorders to optimize clinical interventions for youth.


Diabetes ◽  
1996 ◽  
Vol 45 (9) ◽  
pp. 1161-1167 ◽  
Author(s):  
A. M. Davalli ◽  
L. Scaglia ◽  
D. H. Zangen ◽  
J. Hollister ◽  
S. Bonner-Weir ◽  
...  

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