scholarly journals From collocations to call-ocations: using linguistic methods to quantify animal call combinations

2021 ◽  
Author(s):  
Alexandra B. Bosshard ◽  
Maël M. Leroux ◽  
Nicholas A. Lester ◽  
Balthasar Bickel ◽  
Sabine Stoll ◽  
...  
Keyword(s):  
Communication Systems ◽  
Animal Species ◽  
Animal Communication ◽  
Promising Tool ◽  
Latent Ability ◽  
Human Animal ◽  
Linguistic Methods ◽  
Objective Quantification ◽  
Recurrent Word

Emerging data in a range of non-human animal species have highlighted a latent ability to combine certain pre-existing calls together into larger structures. Currently, however, there exists no objective quantification of call combinations. This is problematic because animal calls can co-occur with one another simply through chance alone. One common approach applied in language sciences to identify recurrent word combinations is collocation analysis. Through comparing the co-occurrence of two words with how each word combines with other words within a corpus, collocation analysis can highlight above chance, two-word combinations. Here, we demonstrate how this approach can also be applied to non-human animal communication systems by implementing it on a pseudo dataset. We argue collocation analysis represents a promising tool for identifying non-random, communicatively relevant call combinations in animals.

scholarly journals Reflections on Protolanguage: Evidence from Studies on Animal Communication

2021 ◽  
Vol 11 (1) ◽  
pp. 113
Author(s):  
Aziz Jaber ◽  
Osama Omari ◽  
Mujdey Abudalbuh
Keyword(s):  
Convergent Evolution ◽  
Communication Systems ◽  
Animal Communication ◽  
Language Evolution ◽  
Intermediate Stage ◽  
Necessary Condition ◽  
Human Language ◽  
Human Communication ◽  
Semantic Compositionality ◽  
Human Animal

The paper is a critique of the existence of protolanguage based on some personal reasoning given the findings of previous research. This paper focuses on the nature of semantic compositionality and its existence (and therefore manifestations) in animal communication systems as evidence of the existence of protolanguage. This compositional state that started to color human language has paved the way to hierarchical syntax and thus has helped in the emergence of a recursive, fully complex language. On the other hand, non-human animal communication systems, including those examined in this paper, have not managed to progress beyond the holophrastic state, and thus remained highly confined and unproductive. This is explicated by the observation that these systems do not employ discrete meaningful units that can be used recursively in different linguistic contexts, a necessary condition for a system of communication to be compositional. This is interesting in the study of language evolution as it could suggest that human language could not have evolved from a rudimentary, intermediate stage called protolanguage. Speculating about the existence of protolanguage subsumes convergent evolution (e.g. songbirds). The lack of semantic compositionality in non-human communication system suggests that convergent evolution is hard to prove, which puts the existence of protolanguage on the line. This thesis is, however, far from being established and requires a lot of further research to prove its validity.   Received: 21 September 2020 / Accepted: 3 November 2020 / Published: 17 January 2021

scholarly journals Vocal plasticity in a reptile

2017 ◽  
Vol 284 (1855) ◽  
pp. 20170451 ◽  
Author(s):  
Henrik Brumm ◽  
Sue Anne Zollinger
Keyword(s):  
Signal Detection ◽  
Communication Systems ◽  
Vocal Communication ◽  
Animal Communication ◽  
High Amplitude ◽  
Vocal Plasticity ◽  
Lombard Effect ◽  
Gekko Gecko ◽  
High Degree ◽  
Signalling Systems

Sophisticated vocal communication systems of birds and mammals, including human speech, are characterized by a high degree of plasticity in which signals are individually adjusted in response to changes in the environment. Here, we present, to our knowledge, the first evidence for vocal plasticity in a reptile. Like birds and mammals, tokay geckos ( Gekko gecko ) increased the duration of brief call notes in the presence of broadcast noise compared to quiet conditions, a behaviour that facilitates signal detection by receivers. By contrast, they did not adjust the amplitudes of their call syllables in noise (the Lombard effect), which is in line with the hypothesis that the Lombard effect has evolved independently in birds and mammals. However, the geckos used a different strategy to increase signal-to-noise ratios: instead of increasing the amplitude of a given call type when exposed to noise, the subjects produced more high-amplitude syllable types from their repertoire. Our findings demonstrate that reptile vocalizations are much more flexible than previously thought, including elaborate vocal plasticity that is also important for the complex signalling systems of birds and mammals. We suggest that signal detection constraints are one of the major forces driving the evolution of animal communication systems across different taxa.

Localization and genotyping of canine papillomavirus in canine inverted papillomas

2021 ◽  
pp. 104063872110357
Author(s):  
Margherita Orlandi ◽  
Maurizio Mazzei ◽  
Marta Vascellari ◽  
Erica Melchiotti ◽  
Claudia Zanardello ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Inclusion Bodies ◽  
Animal Species ◽  
Viral Etiology ◽  
Molecular Approaches ◽  
Dna And Rna ◽  
Promising Tool ◽  
First Choice ◽  
Inverted Papillomas

Numerous canine papillomaviruses (CPVs) have been identified (CPV1–23). CPV1, 2, and 6 have been associated with inverted papillomas (IPs). We retrieved 19 IPs from 3 histopathology archives, and evaluated and scored koilocytes, inclusion bodies, giant keratohyalin granules, cytoplasmic pallor, ballooning degeneration, and parakeratosis. IHC targeting major capsid proteins of PV was performed, and CPV genotyping was achieved by PCR testing. Tissue localization of CPV DNA and RNA was studied by chromogenic and RNAscope in situ hybridization (DNA-CISH, RNA-ISH, respectively). IPs were localized to the limbs (50%), trunk (30%), and head (20%), mainly as single nodules (16 of 19). In 15 of 19 cases, immunopositivity was detected within the nuclei in corneal and subcorneal epidermal layers. PCR revealed CPV1 in 11 IPs and CPV2 DNA in 3 IPs. Overall, 14 of 17 cases were positive by both DNA-CISH and RNA-ISH, in accord with PCR results. A histologic score >5 was always obtained in cases in which the viral etiology was demonstrated by IHC, DNA-CISH, and RNA-ISH. IHC and molecular approaches were useful to ascertain the viral etiology of IPs. Although IHC is the first choice for diagnostic purposes, ISH testing allows identification of PV type and the infection phase. RNA-ISH seems a promising tool to deepen our understanding of the pathogenesis of different PV types in animal species.

scholarly journals Acoustic cues to individuality in wild male adult African savannah elephants (Loxodonta africana)

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10736
Author(s):  
Kaja Wierucka ◽  
Michelle D. Henley ◽  
Hannah S. Mumby
Keyword(s):  
Communication Systems ◽  
Animal Communication ◽  
Current Knowledge ◽  
Individual Recognition ◽  
Social Bonds ◽  
Loxodonta Africana ◽  
Mature Male ◽  
Acoustic Cues ◽  
Acoustic Parameters ◽  
Male Adult

The ability to recognize conspecifics plays a pivotal role in animal communication systems. It is especially important for establishing and maintaining associations among individuals of social, long-lived species, such as elephants. While research on female elephant sociality and communication is prevalent, until recently male elephants have been considered far less social than females. This resulted in a dearth of information about their communication and recognition abilities. With new knowledge about the intricacies of the male elephant social structure come questions regarding the communication basis that allows for social bonds to be established and maintained. By analyzing the acoustic parameters of social rumbles recorded over 1.5 years from wild, mature, male African savanna elephants (Loxodonta africana) we expand current knowledge about the information encoded within these vocalizations and their potential to facilitate individual recognition. We showed that social rumbles are individually distinct and stable over time and therefore provide an acoustic basis for individual recognition. Furthermore, our results revealed that different frequency parameters contribute to individual differences of these vocalizations.

scholarly journals Introduction

2009 ◽  
Vol 37 (3/4) ◽  
pp. 353-368
Author(s):  
Dario Martinelli
Keyword(s):  
Animal Species ◽  
Animal Communication ◽  
Recent Developments ◽  
Definition Of ◽  
In The Beginning

“Zoosemiotics” was introduced in 1963 by Thomas Albert Sebeok, initially as a compromise between ethological and semiotic research. In the beginning, Sebeok was convinced that “zoosemiotics” had to be used mostly as an umbrella term, uniting different scholarly approaches to animal communication). In the light of its most recent developments, a synthetic definition of zoosemiotics can be today that of the study of semiosis within and across animal species.

scholarly journals Multimodal signalling in the North American barn swallow: a phenotype network approach

2015 ◽  
Vol 282 (1816) ◽  
pp. 20151574 ◽  
Author(s):  
Matthew R. Wilkins ◽  
Daizaburo Shizuka ◽  
Maxwell B. Joseph ◽  
Joanna K. Hubbard ◽  
Rebecca J. Safran
Keyword(s):  
Mate Choice ◽  
North American ◽  
Communication Systems ◽  
Animal Communication ◽  
Complex Signal ◽  
Network Approach ◽  
Barn Swallow ◽  
Complex Signals ◽  
The North ◽  
Phenotype Network

Complex signals, involving multiple components within and across modalities, are common in animal communication. However, decomposing complex signals into traits and their interactions remains a fundamental challenge for studies of phenotype evolution. We apply a novel phenotype network approach for studying complex signal evolution in the North American barn swallow ( Hirundo rustica erythrogaster ). We integrate model testing with correlation-based phenotype networks to infer the contributions of female mate choice and male–male competition to the evolution of barn swallow communication. Overall, the best predictors of mate choice were distinct from those for competition, while moderate functional overlap suggests males and females use some of the same traits to assess potential mates and rivals. We interpret model results in the context of a network of traits, and suggest this approach allows researchers a more nuanced view of trait clustering patterns that informs new hypotheses about the evolution of communication systems.

A comparison of two information theory approaches to animal communication systems

2001 ◽  
Vol 109 (5) ◽  
pp. 2429-2429
Author(s):  
Laurance R. Doyle ◽  
Jon M. Jenkins ◽  
Sean F. Hanser ◽  
Brenda McCowan
Keyword(s):  
Information Theory ◽  
Communication Systems ◽  
Animal Communication

Patterns of evolution in human speech processing and animal communication

1998 ◽  
Vol 21 (2) ◽  
pp. 282-283
Author(s):  
Michael J. Ryan ◽  
Nicole M. Kime ◽  
Gil G. Rosenthal
Keyword(s):  
Sexual Selection ◽  
Speech Processing ◽  
Communication Systems ◽  
Animal Communication ◽  
Low Noise ◽  
Communication Signals ◽  
Human Speech ◽  
Strong Selection ◽  
Processing Data ◽  
Receiver System

We consider Sussman et al.'s suggestion that auditory biases for processing low-noise relationships among pairs of acoustic variables is a preadaptation for human speech processing. Data from other animal communication systems, especially those involving sexual selection, also suggest that neural biases in the receiver system can generate strong selection on the form of communication signals.

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