scholarly journals Airborne vocal communication in adult neotropical otters (Lontra longicaudis)

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0251974
Author(s):  
Sabrina Bettoni ◽  
Angela Stoeger ◽  
Camilo Rodriguez ◽  
W. Tecumseh Fitch
Keyword(s):  
Communication Systems ◽  
Vocal Communication ◽  
Acoustic Parameters ◽  
Fundamental Frequencies ◽  
Phylogenetic Inertia ◽  
The Social ◽  
Evolution Of Communication ◽  
First Time ◽  
Aquatic Mammals ◽  
Lontra Longicaudis

Most aquatic mammals have complex social and communication systems. Interestingly, little is known about otters’ vocal communication compared to other aquatic mammals. Here, for the first time, we acoustically describe vocalizations of the neotropical otter (Lontra longicaudis), a solitary and endangered New World otter species. We recorded vocalizations and behavioral contexts from six captive neotropical otters at Projeto Lontra, Santa Catarina Island, Brazil. Analysis of acoustic parameters were used to classify the vocalizations according to structure and context. We describe six call types with highly tonal as well as chaotic vocalizations with fundamental frequencies ranging from 90 to 2500 Hz. Additionally, we identified sex differences in the usage of calls. Results suggest that the neotropical river otter has a rich vocal repertoire, similar in complexity to other solitary otter species, but less complex than that of the social giant otter. Despite differences in sociality, phylogeny and ecology, L. longicaudis seems to possess vocalizations homologous to those found in other otters (e.g. hah and chirp), suggesting phylogenetic inertia in otter communicative repertoire. Otters thus offer an interesting but neglected group to explore the evolution of communication systems.

scholarly journals Does Social Complexity Drive Vocal Complexity? Insights from the Two African Elephant Species

Animals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3071
Author(s):  
Daniela Hedwig ◽  
Joyce Poole ◽  
Petter Granli
Keyword(s):  
Communication Systems ◽  
Social Complexity ◽  
Vocal Communication ◽  
Reproductive Rate ◽  
African Elephant ◽  
African Elephants ◽  
Savanna Elephant ◽  
The Social ◽  
Forest Elephant ◽  
Vocal Complexity

The social complexity hypothesis (SCH) for communication states that the range and frequency of social interactions drive the evolution of complex communication systems. Surprisingly, few studies have empirically tested the SHC for vocal communication systems. Filling this gap is important because a co-evolutionary runaway process between social and vocal complexity may have shaped the most intricate communication system, human language. We here propose the African elephant Loxodonta spec. as an excellent study system to investigate the relationships between social and vocal complexity. We review how the distinct differences in social complexity between the two species of African elephants, the forest elephant L. cyclotis and the savanna elephant L. africana, relate to repertoire size and structure, as well as complex communication skills in the two species, such as call combination or intentional formant modulation including the trunk. Our findings suggest that Loxodonta may contradict the SCH, as well as other factors put forth to explain patterns of vocal complexity across species. We propose that life history traits, a factor that has gained little attention as a driver of vocal complexity, and the extensive parental care associated with a uniquely low and slow reproductive rate, may have led to the emergence of pronounced vocal complexity in the forest elephant despite their less complex social system compared to the savanna elephant. Conclusions must be drawn cautiously, however. A better understanding of vocal complexity in the genus Loxodonta will depend on continuing advancements in remote data collection technologies to overcome the challenges of observing forest elephants in their dense rainforest habitat, as well as the availability of directly comparable data and methods, quantifying both structural and contextual variability in the production of rumbles and other vocalizations in both species of African elephants.

scholarly journals Tolerant and intolerant macaques show different levels of structural complexity in their vocal communication

2020 ◽  
Vol 287 (1928) ◽  
pp. 20200439
Author(s):  
Nancy Rebout ◽  
Arianna De Marco ◽  
Jean-Christophe Lone ◽  
Andrea Sanna ◽  
Roberto Cozzolino ◽  
...  
Keyword(s):  
Communication Systems ◽  
Social Complexity ◽  
Vocal Communication ◽  
Rhesus Macaques ◽  
Structural Complexity ◽  
Social Environments ◽  
Social Tolerance ◽  
The Social ◽  
Vocal Signals ◽  
Complexity Hypothesis

We tested the social complexity hypothesis which posits that animals living in complex social environments should use complex communication systems. We focused on two components of vocal complexity: diversity (number of categories of calls) and flexibility (degree of gradation between categories of calls). We compared the acoustic structure of vocal signals in groups of macaques belonging to four species with varying levels of uncertainty (i.e. complexity) in social tolerance (the higher the degree of tolerance, the higher the degree of uncertainty): two intolerant species, Japanese and rhesus macaques, and two tolerant species, Tonkean and crested macaques. We recorded the vocalizations emitted by adult females in affiliative, agonistic and neutral contexts. We analysed several acoustic variables: call duration, entropy, time and frequency energy quantiles. The results showed that tolerant macaques displayed higher levels of vocal diversity and flexibility than intolerant macaques in situations with a greater number of options and consequences, i.e. in agonistic and affiliative contexts. We found no significant differences between tolerant and intolerant macaques in the neutral context where individuals are not directly involved in social interaction. This shows that species experiencing more uncertain social interactions displayed greater vocal diversity and flexibility, which supports the social complexity hypothesis.

scholarly journals Dwarf mongoose alarm calls: investigating a complex non-human animal call

2020 ◽  
Vol 287 (1935) ◽  
pp. 20192514
Author(s):  
Katie Collier ◽  
Andrew N. Radford ◽  
Sabine Stoll ◽  
Stuart K. Watson ◽  
Marta B. Manser ◽  
...  
Keyword(s):  
Communication Systems ◽  
Vocal Communication ◽  
Vital Role ◽  
Alarm Calls ◽  
Human Communication ◽  
Social Lives ◽  
Novel Approach ◽  
The Social ◽  
Wide Range ◽  
The Individual

Communication plays a vital role in the social lives of many species and varies greatly in complexity. One possible way to increase communicative complexity is by combining signals into longer sequences, which has been proposed as a mechanism allowing species with a limited repertoire to increase their communicative output. In mammals, most studies on combinatoriality have focused on vocal communication in non-human primates. Here, we investigated a potential combination of alarm calls in the dwarf mongoose ( Helogale parvula ), a non-primate mammal. Acoustic analyses and playback experiments with a wild population suggest: (i) that dwarf mongooses produce a complex call type (T 3 ) which, at least at the surface level, seems to comprise units that are not functionally different to two meaningful alarm calls (aerial and terrestrial); and (ii) that this T 3 call functions as a general alarm, produced in response to a wide range of threats. Using a novel approach, we further explored multiple interpretations of the T 3 call based on the information content of the apparent comprising calls and how they are combined. We also considered an alternative, non-combinatorial interpretation that frames T 3 as the origin, rather than the product, of the individual alarm calls. This study complements previous knowledge of vocal combinatoriality in non-primate mammals and introduces an approach that could facilitate comparisons between different animal and human communication systems.

Cinematic Search for Identity in the Shade of Turkey’s 1960 Coup: The Social Realism Debate and The Hope

2017 ◽  
Vol 6 (1) ◽  
pp. 153-168
Author(s):  
Celal Hayir ◽  
Ayman Kole
Keyword(s):  
Party System ◽  
Social Realism ◽  
New Era ◽  
Cultural Life ◽  
The Social ◽  
Turkish Cinema ◽  
To Come ◽  
First Time ◽  
Democratic Constitution ◽  
Realism Debate

When the Turkish army seized power on May 27th, 1960, a new democratic constitution was carried into effect. The positive atmosphere created by the 1961 constitution quickly showed its effects on political balances in the parliament and it became difficult for one single party to come into power, which strengthened the multi-party-system. The freedom initiative created by 1961’s constitution had a direct effect on the rise of public opposition. Filmmakers, who generally steered clear from the discussion of social problems and conflicts until 1960, started to produce movies questioning conflicts in political, social and cultural life for the first time and discussions about the “Social Realism” movement in the ensuing films arose in cinematic circles in Turkey. At the same time, the “regional managers” emerged, and movies in line with demands of this system started to be produced. The Hope (Umut), produced by Yılmaz Güney in 1970, rang in a new era in Turkish cinema, because it differed from other movies previously made in its cinematic language, expression, and use of actors and settings. The aim of this study is to mention the reality discussions in Turkish cinema and outline the political facts which initiated this expression leading up to the film Umut (The Hope, directed by Yılmaz Güney), which has been accepted as the most distinctive social realist movie in Turkey. 

Founding Gods, Inventing Nations

2011 ◽  
Author(s):  
William F. McCants
Keyword(s):  
Near East ◽  
Cultural Orientation ◽  
Primary Sources ◽  
Islamic Culture ◽  
Political Consequences ◽  
The Social ◽  
Islamic Empire ◽  
First Time ◽  
Vast Range

From the dawn of writing in Sumer to the sunset of the Islamic empire, this book traces four thousand years of speculation on the origins of civilization. Investigating a vast range of primary sources, some of which are translated here for the first time, and focusing on the dynamic influence of the Greek, Roman, and Arab conquests of the Near East, the book looks at the ways the conquerors and those they conquered reshaped their myths of civilization's origins in response to the social and political consequences of empire. The Greek and Roman conquests brought with them a learned culture that competed with that of native elites. The conquering Arabs, in contrast, had no learned culture, which led to three hundred years of Muslim competition over the cultural orientation of Islam, a contest reflected in the culture myths of that time. What we know today as Islamic culture is the product of this contest, whose protagonists drew heavily on the lore of non-Arab and pagan antiquity. The book argues that authors in all three periods did not write about civilization's origins solely out of pure antiquarian interest—they also sought to address the social and political tensions of the day. The strategies they employed and the postcolonial dilemmas they confronted provide invaluable context for understanding how authors today use myth and history to locate themselves in the confusing aftermath of empire.

Synergetic Theory of Document in Evolution of Document Science

2018 ◽  
pp. 1060-1068
Author(s):  
Galina A. Dvoenosova ◽  
Keyword(s):  
Social Role ◽  
Scientific Study ◽  
Self Organization ◽  
Universal Theory ◽  
Social Self ◽  
Social Goal ◽  
The Social ◽  
Synergetic Theory ◽  
First Time

The article assesses synergetic theory of document as a new development in document science. In information society the social role of document grows, as information involves all members of society in the process of documentation. The transformation of document under the influence of modern information technologies increases its interest to representatives of different sciences. Interdisciplinary nature of document as an object of research leads to an ambiguous interpretation of its nature and social role. The article expresses and contends the author's views on this issue. In her opinion, social role of document is incidental to its being a main social tool regulating the life of civilized society. Thus, the study aims to create a scientific theory of document, explaining its nature and social role as a tool of social (goal-oriented) action and social self-organization. Substantiation of this idea is based on application of synergetics (i.e., universal theory of self-organization) to scientific study of document. In the synergetic paradigm, social and historical development is seen as the change of phases of chaos and order, and document is considered a main tool that regulates social relations. Unlike other theories of document, synergetic theory studies document not as a carrier and means of information transfer, but as a unique social phenomenon and universal social tool. For the first time, the study of document steps out of traditional frameworks of office, archive, and library. The document is placed on the scales with society as a global social system with its functional subsystems of politics, economy, culture, and personality. For the first time, the methods of social sciences and modern sociological theories are applied to scientific study of document. This methodology provided a basis for theoretical vindication of nature and social role of document as a tool of social (goal-oriented) action and social self-organization. The study frames a synergetic theory of document with methodological foundations and basic concepts, synergetic model of document, laws of development and effectiveness of document in the social continuum. At the present stage of development of science, it can be considered the highest form of theoretical knowledge of document and its scientific explanatory theory.

Disability as a social phenomenon

2020 ◽  
pp. 22-38
Author(s):  
Natalia Guseva ◽  
Vitaliy Berdutin
Keyword(s):  
Social Protection ◽  
Russian Society ◽  
Stage Model ◽  
High Quality ◽  
Rehabilitation Programs ◽  
Current State ◽  
The Social ◽  
Consistent Solution ◽  
First Time

At present, the problem of establishing disability is a point at issue in Russia. Despite the fact that medical criteria for disability are being developed very actively, high-quality methods for assessing social hallmarks are still lacking. Since disability is a phenomenon inherent in any society, each state forms a social and economic policy for people with disabilities in accordance with its level of development, priorities and opportunities. We have proposed a three-stage model, which includes a system for the consistent solution of the main tasks aimed at studying the causes and consequences of the problems encountered today in the social protection of citizens with health problems. The article shows why the existing approaches to the determination of disability and rehabilitation programs do not correspond to the current state of Russian society and why a decrease in the rate of persons recognized as disabled for the first time does not indicate an improvement in the health of the population. The authors proposed a number of measures with a view to correcting the situation according to the results of the study.

The role of pathos: from argumentative responses to feeling and emotions

2017 ◽  
Author(s):  
Michel Meyer
Keyword(s):  
Short Distance ◽  
Social World ◽  
Legal Rhetoric ◽  
Law And Politics ◽  
The Social ◽  
And Behavior ◽  
First Time

Chapter 10 is devoted to the role of emotions or pathos. Pathos was the term ordinarily used to denote the notion of audience. For the first time since Aristotle, emotions receive a full role in a treatise on rhetoric. The responses of the audience are modulated by its emotions. What is their nature and how precisely do they operate? The areas of political and legal rhetoric are examined here in the light of an original view of the theory of distance: values at greater distance become passions at short distance, and this is one of the features which demarcates politics from law. Law and politics are not merely argumentative, nor are they entirely emotional. The norms they codify are often implicit in their shaping of our mutual expectations and behavior in the social world.

scholarly journals Sustainability Evaluation on the Grain to Green Program in the Hexi Corridor of China: A Metacoupled System Perspective

2021 ◽  
Vol 13 (3) ◽  
pp. 1498
Author(s):  
Jian Zhang ◽  
Tao Tian ◽  
Jinying Cui ◽  
Gordon M. Hickey ◽  
Rui Zhou ◽  
...  
Keyword(s):  
Hexi Corridor ◽  
Gansu Province ◽  
Natural System ◽  
Ecological Benefits ◽  
System Perspective ◽  
The Social ◽  
Economic Transformations ◽  
Labor Transfer ◽  
Ancient Silk Road ◽  
First Time

Most previous studies aim to predict ecosystem sustainability from the perspective of a sole human or natural system and have frequently failed to achieve their desired outcome. Based on the coupled human and natural system (CHANS) and its interaction with other systems, we attempted to analyze the effectiveness of the Grain to Green Program and predict future trends in the Hexi Corridor, the hub of the ancient silk road of China. At different scales, we applied a metacoupling framework to investigate the flows, effects, and causes of the complex CHANS. Three typical inner river watersheds within the corridor at three different geographic scales (local, regional and national) were estimated and compared. The Telecoupling Geo App, additional models, and software tools were employed to evaluate the CHANS series of the focal system (Hexi Corridor, local), adjacent system (Gansu Province, regional), and distant system (China, national). The results showed that most flows can be screened and quantitatively analyzed across focal, adjacent and distant systems. The social and economic transformations in adjacent and distant systems could affect the possibility and whereabouts of labor transfer in the focal system. Moreover, the labor migration increased the implementation efficiency of the Grain to Green Program as a Payment for Ecosystem Services (PES) strategy, thereby improving its ecological benefits. For the first time, we established a metacoupled model to quantitatively evaluate aspects of ecosystem sustainability in China, providing insight to the theory and application of sustainability science.

The Chengba site in Quxian County, Sichuan Province

2020 ◽  
Vol 20 (1) ◽  
pp. 54-68
Keyword(s):  
Central Government ◽  
Local People ◽  
Archaeological Survey ◽  
History Museum ◽  
Social Lives ◽  
Functional Zoning ◽  
The Social ◽  
Bamboo Slips ◽  
First Time ◽  
The City

AbstractIn 2014 through 2018, Sichuan Provincial Institute of Cultural Relics and Archaeology and History Museum of Quxian County conducted a systematic archaeological survey, detection, and excavation to the Chengba site in Quxian County. The excavation uncovered 4,000sq m in total, from which 444 various features were recovered and over 1,000 artifacts were unearthed. The functional zoning of this site has been roughly made clear; the excavations of the western gate and important building foundations of the Guojiatai city site are important archaeological discoveries of the city sites of the Han through Western Jin dynasties, and at the checkpoint site on the waterway of this period was uncovered for the first time in China. The large amounts of bamboo slips and wooden tablets unearthed in the excavation provided important materials for the explorations on the management of the central government of the Han and Jin empires to the administrative areas of commandery and district levels and the social lives of the local people at that time.

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