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Body coloration in ectotherms serves multiple biological functions, including avoiding predators, communicating with conspecific individuals, and involvement in thermoregulation. As ectotherms rely on environmental sources of heat to regulate their internal body temperature, stable melanistic body coloration or color change can be used to increase or decrease heat absorption and heat exchange with the environment. While the function of melanistic coloration for thermoregulation has been found to increase solar radiation absorption for heating in many diurnal ectotherms, research on crepuscular and nocturnal ectotherms is lacking. Since crepuscular and nocturnal ectotherms generally absorb heat from the substrate, coloration is likely under different selective pressures than in diurnal ectotherms. We tested if the proportion of dorsal melanistic body coloration is related to differences in body temperature heating and cooling rates in the crepuscular geckoEublepharis maculariusand whether changes in environmental temperature trigger color changes in this species. Temperature measurements of the geckos and of the environment were taken using infrared thermography and temperature loggers. Color data were obtained using objective photography and a newly developed custom software package. We found that body temperature reflected substrate temperatures, and that the proportion of melanistic coloration has no influence on heating or cooling rates or on color changes. These findings suggest that, inE. macularius, melanistic coloration may not be used for thermoregulation. Future research should further test the function of melanistic coloration in other crepuscular and nocturnal vertebrates to understand the evolution of melanistic pattern in animals active in low light conditions.

Although non-marine turtles are nearly ubiquitous in the Southeast Asian archaeological record, their zooarchaeological study has been very poorly undertaken in that tropical region of the world. This lack of study makes the understanding of past human subsistence strategies very complex especially regarding the prehistoric hunter gatherer populations which may have massively exploited inland chelonian taxa. In order to try to start a new dynamic regarding the study of the past human-turtle interactions in Southeast Asia we propose here an in-depth zooarchaeological analysis of the turtle bone remains recovered from four Hoabinhian Hunter-gatherer archaeological assemblages located in Thailand and Cambodia, and dated from the Late Pleistocene to the first half of the Holocene. Our study is focused on the bone remains attributed to the Yellow-Headed Tortoise (Indotestudo elongata) as they account for the majority of the turtle archaeological assemblages identified in the target area. For this species, we developed osteo-metric equations enabling the estimation of the carapace size of the archaeological individuals of this species. This allowed us to study the size structure of the archaeological populations in the different sites and to reveal the human exploitation strategies of these animals. We found a strong taphonomic homogeneity between the studied assemblages suggesting similarities of the subsistence behaviors in the different sites despite their very different environmental settings. We thus hypothesize putative cultural similarities across time and space. In addition, we also provide a baseline for future zooarchaeological studies as well as a methodological frame for the detailed studies of archaeological turtle bones in continental Southeast Asia.

The rice field crab is considered a pest that disrupts rice production in paddy fields in tropical regions. The crab is also used as a stable food source by local people in many countries in Southeast Asia. For both of these roles, a good knowledge of the crab’s reproductive biology is necessary to manage populations in their natural habitats. This study aims to investigate the reproductive cycle of adult males of the rice field crab Esanthelphusa nani (Naiyanetr, 1984). Males crabs were sampled monthly in a paddy field; individuals were then anaesthetized and dissected, and their reproductive tract was analysed. The gonadosomatic index (GSI) was evaluated based on the relative weight of the reproductive tract and body weight. The male GSI showed significant temporal difference, with the highest levels in June, August and September. Based on GSI and macroscopic examination, the testis and vas deferens can be classified into three stages of increasing size: (1) resting stage, (2) developing stage and (3) active stage. Microscopic examination revealed that the testis and vas deferens had a tubular structure. Seminiferous tubules in the testis underwent spermatogenesis and spermiogenesis at every stage. The vas deferens consisted of three major regions: anterior, middle and posterior, which showed different types of epithelia. Interestingly, the microscopic structure of the vas deferens was similar among these three reproductive stages. It is also important to note that round-shaped spermatozoa were found in different parts of the reproductive tract, including the seminiferous tubule and vas deferens, as well as in the female seminal receptacle, whereas no spermatophores were found in this species. Overall, this study shows that mature sperms can be found in the reproductive tract of male E. nani throughout the year, indicating that males have prolonged spermatogenic activities.

Identifying species with lower-than-expected cancer prevalence can help establish new models for understanding cancer resistance. Most studies of cancer prevalence have focused on mammals. Yet, other vertebrate groups vary tremendously in genetics, physiology, and ecology, which can all influence mechanisms of cancer resistance and may hold new keys to understanding cancer biology. Here, we present data on cancer prevalence in tetrapods, which includes all major vertebrate groups except fish, using necropsies from over a thousand different species. We investigated cancer prevalence within and among amphibians, birds, crocodilians, mammals, squamates, and turtles in relationship to body mass and lifespan. We are the first to (1) analyze non-avian reptile groups separately, (2) conduct statistical analyses appropriate for this type of discontinuous data, (3) more accurately use raw cancer occurrence data instead of species averages, and (4) look at how data resampling influences the robustness of results. We found remarkably low cancer prevalence in turtles and high prevalence in squamates and mammals. In contrast to previous studies, lifespan in mammals was negatively associated with neoplasia but positively associated with malignancy. We recovered the same results by reanalyzing data from these previous studies with our statistical approach. We also found that neoplasia prevalence was positively associated with body mass in amphibians and squamates. Overall, our results demonstrate a clear relationship between life history and neoplasia in most tetrapod groups. Our findings also indicate that choice of analytical methods is critical when examining cancer prevalence data. Finally, the exceptionally low cancer prevalence in turtles and extensive variation in cancer prevalence among tetrapod families hold particular promise for identifying species with novel mechanisms of cancer resistance.

Over the last 25 years, researchers, mostly paleontologists, have developed a system of rank-free, phylogenetically defined names for the primary clades of turtles. As these names are not considered established by the PhyloCode, the newly created nomenclatural system that governs the naming of clades, we take the opportunity to convert the vast majority of previously defined clade names for extinct and extant turtles into this new nomenclatural framework. Some previously defined names are converted with minor adjustments. We also define a number of new clade names to close apparent nomenclatural gaps. In total, we establish 113 clade names, of which 79 had already received phylogenetic definitions and 34 are new.

The 1998 PBS show “Africans in America” spans slavery days until the Civil War. Novelist Charles Johnson wrote a companion collection of short stories, Soulcatcher. “Confession” is set at the time of the 1739 Stono rebellion, of which there exists no known contemporary account from a black (slave or free) source; least of all the words spoken by one of the rebels during his “trial”. From the beginning, the insistent shadow of Nat Turner’s so-called confessions is felt as a subtext. Gray’s apocryphal account is turned upside down both in terms of contents and form. His white man’s language and Turner’s mystical resignation to death on the gallows is turned into everyday black words lambasting the powers that were through a mask of submissiveness and naïveté. Johnson’s fiction signifies on the smoothness of Gray’s text, and there emerges a fine picture of the give and take game between slaves and masters, of the complexity hidden beneath the surface simplicity of white domination and, most of all, of a smart rebel, of a dignified man for all his apparent subservience.

One cannot fail to be impressed by the number of works of fiction relating to slavery and the slave trade, writing back to the original slave narratives of the 18th and 19th centuries. If the African-American authors of the 1960s and 1970s are now well-known, they find an echo in works written more recently in the 1980s and 1990s by American, African, African-American and Caribbean writers. About twenty writers come under the scrutiny of renowned scholars, offering perspectives into what makes it so necessary today for writers, critics and readers alike to revisit, reassess and reappropriate the canonical texts of slavery and post-slavery literature. The specificity of this collection is to focus on neo-slave novels while bringing together African-American and Caribbean authors. On ne peut qu’être impressionné par le nombre d’œuvres littéraires de fiction qui se rapportent à l’esclavage et au commerce des esclaves, répondant ainsi aux premiers récits d’esclaves publiés aux XVIIIe et XIXe siècles. Si les auteurs africains-américains des années soixante et soixante-dix sont maintenant bien connus, toute une nouvelle vague d’écrivains Américains, Africains, Africains-Américains et Caribbéens, poursuivent et renouvèlent, depuis les années quatre-vingt et quatre vingt-dix, cette tradition. Rassemblés autour de l’œuvre d’une vingtaine d’écrivains, des universitaires de renom ouvrent, dans ce recueil, des perspectives nouvelles pour comprendre la nécessité qui poussent écrivains, critiques et lecteurs à relire, réécrire et revisiter cette littérature de l’esclavage encore aujourd’hui.

This collection offers a follow up to the first collection of essays Revisiting Slave Narratives / Les Avatars des récits d’esclaves (2005), whose purpose was to bring together African-merican and Caribbean neo-slave novels. In 2007, the year of the bicentennial anniversary of the official abolition of the transatlantic slave trade in the British colonial Empire, the memorialisation and commemoration events should not obliterate the fact that, through the prison of slave narratives and neo-slave novels, it is our present that is at stake. In order to show how our societies and minds still need to be manumitted, the essays in this collection examine books of fiction by André Brink, Octavia Butler, Barbara Chase-Riboud, Cristina Garcia, Edward P. Jones, Paule Marshall, Phyllis Perry, Susan Straight, and books of non-fiction by Malcom X or John Edgar Wideman ; as well as works by poets like Fred D’Aguiar or Marilyn Nelson, by playwrights like Robbie Mc Cauley, Derek Walcott or August Wilson, and by visual artists like David Boxer, Christopher Cozier, Glenn Ligon, or Kara Walker. Ce recueil propose une suite au premier recueil d’articles Revisiting Slave Narratives · Les avatars contemporains des récits d’esclaves (2005) dont le but était de rapprocher les écrivains afro-américains et caribéens qui revisitent la littérature de l’esclavage. En cette année 2007, bicentenaire de l’abolition de la traite dans l’empire britannique, c’est dans son rapport à notre présent que le travail de mémoire doit continuer d’être effectué. De façon à montrer à quel point la relecture de ce passé de l’esclavage est encore nécessaire pour libérer les sociétés et les esprits, les articles de cette collection analysent des œuvres de fiction d’André Brink, Octavia Butler, Barbara Chase-Riboud, Cristina Garcia, Edward P. Jones, Paule Marshall, Phyllis Perry, Susan Straight, et des œuvres de non-fiction de Malcolm X ou John Edgar Wideman ; ainsi que l’œuvre de poètes comme Fred D’Aguiar ou Marilyn Nelson, de dramaturges comme Robbie Mc Cauley, Derek Walcott ou August Wilson, et d’artistes comme David Boxer, Christopher Cozier, Glenn Ligon, ou Kara Walker.

The size and shape of organs is tightly controlled to achieve optimal function. Natural morphological variations often represent functional adaptations to an ever-changing environment. For instance, variation in head morphology is pervasive in insects and the underlying molecular basis is starting to be revealed in the Drosophila genus for species of the melanogaster group. However, it remains unclear whether similar diversifications are governed by similar or different molecular mechanisms over longer timescales. To address this issue, we used species of the virilis phylad because they have been diverging from D. melanogaster for at least 40 million years. Our comprehensive morphological survey revealed remarkable differences in eye size and head shape among these species with D. novamexicana having the smallest eyes and southern D. americana populations having the largest eyes. We show that the genetic architecture underlying eye size variation is complex with multiple associated genetic variants located on most chromosomes. Our genome wide association study (GWAS) strongly suggests that some of the putative causative variants are associated with the presence of inversions. Indeed, northern populations of D. americana share derived inversions with D. novamexicana and they show smaller eyes compared to southern ones. Intriguingly, we observed a significant enrichment of genes involved in eye development on the 4th chromosome after intersecting chromosomal regions associated with phenotypic differences with those showing high differentiation among D. americana populations. We propose that variants associated with chromosomal inversions contribute to both intra- and interspecific variation in eye size among species of the virilis phylad. NP, MR, BH and GW were funded by the Deutsche Forschungsgemeinschaf (DFG, Grant Number: PO 19 1648/3-1) to NP. MR was funded by the Volkswagen Foundation (Support for Europe, Grant Number: 85983-1) to NP and JV. Many thanks to the Deep-Sequencing Core Facility of the Universitätsmedizin Göttingen (UMG) for next generation sequencing. We acknowledge support by the Open Access Publication Funds of the Göttingen University. Open access funding provided by Projekt DEAL.

The link between performance, morphology and their sources of variation is a major target of evolutionary functional biology. In vertebrates, many studies have linked in vivo bite force to skull morphology, mostly at the interspecific level. Within species, however, the ontogeny of bite force, in relation to the development of the mandible, remains poorly known, despite its relevance for life history and for the co-evolution of form and function. Here, ontogenetic trajectories of bite force, correlated with mandible size and shape, are reported for the first time in a wild-derived colony of laboratory mice. Bite forces were measured in vivo and mandible morphology was assessed using geometric morphometrics. Most coordinated changes in morphology and in vivo bite force occur during the first stages of growth, prior to weaning. Mandible shape stabilizes after day 23. The increases in mandible size and body mass slow down around day 40, but still increase during adulthood. Despite slowing down after weaning, bite force increases through a second phase during sexual maturation (days 30–40). This may be linked to the progressive tempering of weaning stress, continued growth and synchronization of the muscular and osteological systems, together with hormonal changes, as we observed a concomitant appearance of sexual dimorphism.

Cardichelyon rogerwoodi is an enigmatic fossil turtle from the late Paleocene to early Eocene of North America. Previous analyses suggested affiliation with Testudinoidea, in particular the big-headed turtle Platysternon megacephalum, based on the presence of multiple musk-duct foramina and a large head. We here highlight previously undocumented characteristics for this turtle, notably the presence of short costiform processes, a rib-like axillary process, and a posterior plastral hinge. Phylogenetic analysis places Cardichelyon rogerwoodi within Testudinoidea, but the exclusion of testudinoids suggest an affiliation with Dermatemydidae. Using consilience with external data we favor placement within Kinosternoidea. Cardichelyon rogerwoodi is therefore an aberrant, hinged kinosternoid that developed in situ in North America during the Paleocene long before the arrival of testudinoids on this continent in the early Eocene.

Giant tortoises have been found from the Plio-Pleistocene sediments of Tha Chang sandpits, Nakhon Ratchasima Province, Thailand. These tortoises are represented by several individuals and are described based on carapace, plastron, limb bones, and isolated plates. Three different morphotypes of epiplastral projection are recognized, pertaining to different sexes or different ontogenetic stages. Based on their large size, thick shell, single supracaudal, well-developed epiplastral projection, gulars covering anterior part of the entoplastron or in contact with the latter, and humeropectoral sulcus posterior to entoplastron, these Thai giant tortoises are assigned to the genus Megalochelys. Thai specimens show strong similarities with large tortoises from India as well as those from Flores and Timor, and are therefore very close morphologically to Melgalochelys atlas. Our study provides new evidence about polymorphism and additional information about distribution of Plio-Pleistocene fossil giant tortoises in South and Southeast Asia.

Fitness-related traits tend to have low heritabilities. Conversely, morphology tends to be highly heritable. Yet, many fitness-related performance traits such as running speed or bite force depend critically on morphology. Craniofacial morphology correlates with bite performance in several groups including rodents. However, within species, this relationship is less clear, and the genetics of performance, morphology and function are rarely analyzed in combination. Here, we use a half-sib design in outbred wild-derived Mus musculus to study the morphology-bite force relationship and determine whether there is additive genetic (co-)variance for these traits. Results suggest that bite force has undetectable additive genetic variance and heritability in this sample, while morphological traits related mechanically to bite force exhibit varying levels of heritability. The most heritable traits include the length of the mandible which relates to bite force. Despite its correlation with morphology, realized bite force was not heritable, which suggests it is less responsive to selection in comparison to its morphological determinants. We explain this paradox with a non-additive, many-to-one mapping hypothesis of heritable change in complex traits. We furthermore propose that performance traits could evolve if pleiotropic relationships among the determining traits are modified.

Rhinoceroses are among the most endangered mammalian species today. Their past diversity is well documented from the Eocene onward, although their evolutionary history is far from being fully understood. Here, we elucidate the systematic affinities of a Pleistocene rhinoceros species represented by a partial skeleton from 709 ± 68 kya archaeological deposits in Luzon Island, Philippines. We perform a comprehensive phylogenetic analysis, including all living species and a wide array of extinct rhinocerotid species. We confirm the early split between Elasmotheriinae and Rhinocerotinae at c. 35.5 Mya and constrain the divergence between recent Asian and African rhinoceroses at c. 24 Mya, with contrasting phenotypic evolutionary rates in Diceroti and Rhinoceroti. Dental features reveal the existence of an unsuspected Asian Pleistocene clade, referred to as Nesorhinus gen. nov.. It includes the rhinoceros from the Philippines and another extinct species from Taiwan, N. hayasakai. Nesorhinus is the sister-group to a cluster comprising Dicerorhinus and Rhinoceros. Our phylogenetic results strongly suggest an island-hopping dispersal for Nesorhinus, from the Asian mainland towards Luzon via Taiwan by the Late Miocene or later, and Pleistocene dispersals for representatives of Rhinoceros. Nesorhinus philippinensis would be the first perissodactyl species supporting the island-rule hypothesis, with decreased body weight and limb-bone robustness. Introduction Materials and methods Results Discussion - Biogeographical implications for past dispersals of land mammals to the Philippines and the influence of insularity - Body mass of Nesorhinus and island rule Conclusions

An isolated first costal turtle plate from the Early Cretaceous of Kut Island, Gulf of Thailand, is reported and assigned to Trionychoidae gen. et sp. indet. The morphology of the plate and comparison with turtle assemblages of the Khorat Group support the correlation of the vertebrates-bearing beds of Kut Island with the Sao Khua Formation, as already suggested by the studies on sharks and dinosaurs.

International audience; The management of endangered species is complicated in the marine environment owing to difficulties to directly access, track and monitor in situ. Population genetics provide a genuine alternative to estimate population size and inbreeding using non-lethal procedures. The long-snouted seahorse, Hippocampus guttulatus, is facing multiple threats such as human disturbance or by-catch, and has been listed in the red list of IUCN. One large population is found in the Thau lagoon, in the south of France. A recent study has shown this population belongs to a genetic lineage only found in Mediterranean lagoons that can be considered as an Evolutionarily Significant Unit (ESU) and should be managed with dedicated conservation strategies. In the present study, we used genetic analysis of temporal samples to estimate the effective population size of the Thau population and correlations between individual multilocus heterozygosity and fitness traits to investigate the possible expression of inbreeding depression in the wild. Non-invasive sampling of 172 seahorses for which profiles were pictured and biometric data recorded were genotyped using 291 informative SNPs. Genetic diversity remained stable over a 7-year time interval. In addition, very low levels of close relatedness and inbreeding were observed, with only a single pair of related individuals in 2008 and two inbreds in 2013. We did not detect departure from identity equilibrium. The effective population size was estimated to be ­Ne=2742 (~40 reproductive seahorses per ­km2), larger than previously thought. No correlation was observed between heterozygosity and fluctuating asymmetry or other morphometric traits, suggesting a population with low variance in inbreeding. Together these results suggest this population does not meet conventional genetic criteria of an endangered population, as the population seems sufficiently large to avoid inbreeding and its detrimental effects. This study paves the way for the genetic monitoring of this recently discovered ESU of a species with patrimonial and conservation concerns.

In this paper, we report on a new Early Cretaceous vertebrate locality, Phu Din Daeng, in Nakhon Phanom Province, NE Thailand. The Phu Din Daeng site has yielded a diverse vertebrate assemblage, including sharks (Heteroptychodus steinmanni), bony fishes (Pycnodontiformes; Sinamiidae cf. Siamamia and ?Vidalamiinae, and Ginglymodi), adocid turtles, indeterminate neosuchian crocodiles, pterosaurs and dinosaurs (spinosaurids and indeterminate theropods). A new adocid turtle, Protoshachemys rubra n. g. n. sp. is described on the basis of shell material. Field investigations on the geology and comparisons with other vertebrate faunas place Phu Din Daeng in the Sao Khua Formation (Barremian) of the Khorat Group.

A new xinjiangchelyid turtle, Kalasinemys prasarttongosothi n. gen. n. sp., is described on the basis of skull and shell material from the Upper Jurassic Phu Kradung Formation at Phu Noi locality, Kalasin Province, in NE Thailand. This second xinjiangchelyid turtle from Phu Noi is distinct from Phunoichelys thirakhupti by the smooth shell surface, the presence of a cervical notch, and vertebral 1 narrower than nuchal. The skull presents an arterial system characteristic of the Xinjiangchelyidae (basal Eucryptodira), and its outline is similar to that of Annemys spp. known from the Middle–Late Jurassic of China and Mongolia, but distinct from the latter mainly by the wider triturating surface, smaller foramen palatinum posterius and the shape of the prefrontal and frontal, as well as that of the basisphenoid and basioccipital. Based on the turtle assemblages, the correlation with mainland Asia further supports a Late Jurassic age for the lower part of the Phu Kradung Formation where Phu Noi site is located stratigraphically. Our study provides new insight on the evolution of the basal eucryptodiran turtles in Asia.

Animals are exposed to different visual stimuli that influence how they perceive and interact with their environment. Visual information such as shape and colour can help the animal detect, discriminate and make appropriate behavioural decisions for mate selection, communication, camouflage, and foraging. In all major vertebrate groups, it has been shown that certain species can discriminate and prefer certain colours and that colours may increase the response to a stimulus. However, because colour is often studied together with other potentially confounding factors, it is still unclear to what extent colour discrimination plays a crucial role in the perception of and attention towards biologically relevant and irrelevant stimuli. To address these questions in reptiles, we assessed the response of three gecko speciesCorrelophus ciliatus, Eublepharis macularius, andPhelsuma laticaudato familiar and novel 2D images in colour or grayscale. We found that while all species responded more often to the novel than to the familiar images, colour information did not influence object discrimination. We also found that the duration of interaction with images was significantly longer for the diurnal species,P. laticauda, than for the two nocturnal species, but this was independent from colouration. Finally, no differences among sexes were observed within or across species. Our results indicate that geckos discriminate between 2D images of different content independent of colouration, suggesting that colouration does not increase detectability or intensity of the response. These results are essential for uncovering which visual stimuli produce a response in animals and furthering our understanding of how animals use colouration and colour vision.

International audience; Leptospirosis has been recognized as a major public health concern in Thailand following dramatic outbreaks. We analyzed human leptospirosis incidence between 2004 and 2014 in Mahasarakham province, Northeastern Thailand, in order to identify the agronomical and environmental factors likely to explain incidence at the level of 133 sub-districts and 1982 villages of the province. We performed general additive modeling (GAM) in order to take the spatial-temporal epidemiological dynamics into account. The results of GAM analyses showed that the average slope, population size, pig density, cow density and flood cover were significantly associated with leptospirosis occurrence in a district. Our results stress the importance of livestock favoring leptospirosis transmission to humans and suggest that prevention and control of leptospirosis need strong intersectoral collaboration between the public health, the livestock department and local communities. More specifically, such collaboration should integrate leptospirosis surveillance in both public and animal health for a better control of diseases in livestock while promoting public health prevention as encouraged by the One Health approach.

L’objectif de cette étude est de repérer des néologismes à partir de corpus de textes français au moyen d’une méthode semi-automatique. Plus précisément, nous extrayons les néologismes de corpus associés à deux domaines différents, mais traitant du même thème, nous examinons leur répartition et nous les classons selon leur type. L’étude s’appuie sur l’analyse de corpus traitant des médias sociaux. Le premier aborde les médias sociaux du point de vue de la communication, l’autre le fait du point de vue de l’informatique. Ces points de vue ont été privilégiés, car la communication considère ce qui a trait l’utilisation des médias sociaux et l’informatique aborde leur cartographie. La méthode fait appel à l’extracteur de termes TermoStat pour recenser la terminologie des médias sociaux pour chaque point de vue. Ensuite, nous soumettons les 150 termes les plus spécifiques de chaque point de vue à une méthode de validation divisée en trois tests destinés à valider leur statut néologique : des dictionnaires spécialisés, des dictionnaires de langue générale et un outil de visualisation de n-grammes. Finalement, nous étiquetons les néologismes selon la typologie de Dubuc (2002). L’analyse des résultats de la communication et de l’informatique est comparative. La comparaison des deux corpus révèle les contributions respectives de la communication et de l'informatique à la terminologie des médias sociaux en plus de montrer les termes communs aux deux disciplines. L’étude a également permis de repérer 60 néologismes, dont 28 sont exclusifs au corpus de la communication, 28 exclusifs à celui de l’informatique et 4 communs aux deux corpus. La recherche révèle également que les composés par subordination sont les types de néologismes les plus présents dans nos résultats., The objective of this study is to identify the neologisms within corpora of French texts by means of a semi-automatic method. More precisely, we will extract the neologisms from corpora associated to two different areas; however dealing with the same topic, we examine their distribution and we classify them according to their type. This study is based on an analysis of two corpora within social media. The first one approaches social media from the point of view of communication, and the other approaches it from the point of view of computer science. We prioritize these two points of view being that communication is used as the main source of social media’s utilization and that computer science allows us to understand what is involved to allow for social media to be functional. For this method, we use the TermoStat term extractor in order to take census of terminology for each point of view. We then submit 150 of the most specific terms related to each point of view by way of an exclusion corpus from which we divide into three different tests meant to validate their neological status: specialized dictionaries, general language dictionaries, and a visualization tool for n-grams. Lastly, we label the neologisms according to Dubuc’s (2002) typology. The analysis of the results obtained for communication and computer science uses a comparative method. The comparison of the two corpora reveals the respective contributions from communication and computer science with respect to the terminology of social medias, as well it demonstrates common terms found within the two disciplines. This examination also allowed for the identification of 60 neologisms; of which 28 are exclusive to the corpus of communication, another 28 are exclusive to that of computer science, and four were found to be common to both corpora. This research also reveals that subordinate compounds are the most present types of neologisms according to our results.