Disentangling the taxonomy of the subfamily Rasborinae (Cypriniformes, Danionidae) in Sundaland using DNA barcodes

Sundaland constitutes one of the largest and most threatened biodiversity hotspots; however, our understanding of its biodiversity is afflicted by knowledge gaps in taxonomy and distribution patterns. The subfamily Rasborinae is the most diversified group of freshwater fishes in Sundaland. Uncertainties in their taxonomy and systematics have constrained its use as a model in evolutionary studies. Here, we established a DNA barcode reference library of the Rasborinae in Sundaland to examine species boundaries and range distributions through DNA-based species delimitation methods. A checklist of the Rasborinae of Sundaland was compiled based on online catalogs and used to estimate the taxonomic coverage of the present study. We generated a total of 991 DNA barcodes from 189 sampling sites in Sundaland. Together with 106 previously published sequences, we subsequently assembled a reference library of 1097 sequences that covers 65 taxa, including 61 of the 79 known Rasborinae species of Sundaland. Our library indicates that Rasborinae species are defined by distinct molecular lineages that are captured by species delimitation methods. A large overlap between intraspecific and interspecific genetic distance is observed that can be explained by the large amounts of cryptic diversity as evidenced by the 166 Operational Taxonomic Units detected. Implications for the evolutionary dynamics of species diversification are discussed

Genome size and ploidy influence angiosperm species' biomass under nitrogen and phosphorus limitation

Research Council of Norway. Grant Number: 196468/v40. NERC. Grant Number: NE/J012106/

Gluttony, excess, and the fall of the planter class in the British Caribbean

Food and rituals around eating are a fundamental part of human existence. They can also be heavily politicized and socially significant. In the British Caribbean, white slaveholders were renowned for their hospitality towards one another and towards white visitors. This was no simple quirk of local character. Hospitality and sociability played a crucial role in binding the white minority together. This solidarity helped a small number of whites to dominate and control the enslaved majority. By the end of the eighteenth century, British metropolitan observers had an entrenched opinion of Caribbean whites as gluttons. Travelers reported on the sumptuous meals and excessive drinking of the planter class. Abolitionists associated these features of local society with the corrupting influences of slavery. Excessive consumption and lack of self-control were seen as symptoms of white creole failure. This article explores how local cuisine and white creole eating rituals developed as part of slave societies and examines the ways in which ideas about hospitality and gluttony fed into the debates over slavery that led to the dismantling of slavery and the fall of the planter class

Religious rites and scientific communities: Ayudha Puja as “culture” at the Indian Institute of Science

Ayudha Puja, a South Indian festival translated as “worship of the machines,” is a dramatic example of how religion and science intertwine in political life. Across South India, but especially in the state of Karnataka, scientists and engineers celebrate the festival in offices, laboratories, and workshops by attending a puja led by a priest. Although the festival is noteworthy in many ways, one of its most immediate valences is political. In this article, we argue that Ayudha Puja normalizes Brahminical Hinduism within scientific culture through the inclusion of non-Hindus and through scientists' description of the festival as “cultural” rather than “religious.

Religious rites and scientific communities: Ayudha Puja as “culture” at the Indian Institute of Science

Ayudha Puja, a South Indian festival translated as “worship of the machines,” is a dramatic example of how religion and science intertwine in political life. Across South India, but especially in the state of Karnataka, scientists and engineers celebrate the festival in offices, laboratories, and workshops by attending a puja led by a priest. Although the festival is noteworthy in many ways, one of its most immediate valences is political. In this article, we argue that Ayudha Puja normalizes Brahminical Hinduism within scientific culture through the inclusion of non-Hindus and through scientists' description of the festival as “cultural” rather than “religious.

The Social Maze: A Collaborative Game to Motivate MS Patients for Upper Limb Training

Part 12: DemonstrationsInternational audienceSerious gaming is often used in the context of rehabilitation to increase the motivation of the patient to continue the rehabilitation program for a longer period. We investigate serious gaming in the context of rehabilitation programs for multiple sclerosis (MS) patients. Force feedback in combination with a virtual environment is used to establish a training environment supporting basic exercises and more advanced training games for the upper limb, in order to provide patients with an individual training program according to their capabilities. Based on our positive experiences with the use of individual games in this context, we explore “Social Gaming”. More specifically, we designed and developed a “Social Maze”, allowing patients to train together and to interact with the therapist. In this paper we clarify the game concept, setup and context in which the game is used, and report about the player experiences of patients and therapist

Revisiting the ichthyodiversity of Java and Bali through DNA barcodes: taxonomic coverage, identification accuracy, cryptic diversity and identification of exotic species

International audienceAmong the 899 species of freshwater fishes reported from Sundaland biodiversity hotspot, nearly 50% are endemics. The functional integrity of aquatic ecosystems is currently jeopardized by human activities, and landscape conversion led to the decline of fish populations in several part of Sundaland, particularly in Java. The inventory of the Javanese ichthyofauna has been discontinuous, and the taxonomic knowledge is scattered in the literature. This study provides a DNA barcode reference library for the inland fishes of Java and Bali with the aim to streamline the inventory of fishes in this part of Sundaland. Owing to the lack of available checklist for estimating the taxonomic coverage of this study, a checklist was compiled based on online catalogues. A total of 95 sites were visited, and a library including 1046 DNA barcodes for 159 species was assembled. Nearest neighbour distance was 28‐fold higher than maximum intraspecific distance on average, and a DNA barcoding gap was observed. The list of species with DNA barcodes displayed large discrepancies with the checklist compiled here as only 36% (i.e. 77 species) and 60% (i.e. 24 species) of the known species were sampled in Java and Bali, respectively. This result was contrasted by a high number of new occurrences and the ceiling of the accumulation curves for both species and genera. These results highlight the poor taxonomic knowledge of this ichthyofauna, and the apparent discrepancy between present and historical occurrence data is to be attributed to species extirpations, synonymy and misidentifications in previous studies

Identifying spatially concordant evolutionary significant units across multiple species through DNA barcodes: Application to the conservation genetics of the freshwater fishes of Java and Bali

International audienceDelineating Evolutionary Significant Units for conservation purposes is a crucial step in conservation. Across a distribution range, species frequently display population structure that drives the distribution of genetic diversity. These patterns of genetic structure and diversity result from intricate interactions between biogeographic history and demographic dynamics. Prior biogeographic knowledge, however, is scarcely available, a trend particularly pronounced in the tropics where the taxonomic impediment is hampering biogeographic studies and conservation efforts. DNA barcoding has been initially proposed to foster taxonomic studies through the development of an automated molecular system of species identification. While its utility for species identification is increasingly acknowledged, its usefulness for fast and large-scale delineation of ESU remains to be explored. If proved to be useful for that purpose, DNA barcoding may also open new perspectives in conservation by quickly providing preliminary information about population conservation status. The present study aims at assessing the utility of DNA barcoding for the delineation of ESUs among the most common freshwater fish species of Java and Bali through the comparison of population genetic structures and diversification patterns across multiple species. Substantial levels of cryptic diversity are discovered among the three widely distributed freshwater fish species analyzed with a total of 21 evolutionary independent mitochondrial lineages (BINs) observed in Barbodes binotatus, Channa gachua and Glyptothorax platypogon. The maximum genetic distance for each coalescent tree ranges from 6.78 to 7.76 K2P genetic distances for C. gachua and G. platypogon, respectively. Diversification and population genetic analyses support a scenario of allopatric differentiation. The analysis of the BINs spatial distribution indicates concordant distribution patterns among the three species that allow identifying 18 ESUs. Implications for the conservation genetics of these species are discussed at the light of the history of the region

Petrobras Planning Domain: PDDL Modeling and Solving

The thesis explores Petrobras domain from the challenge track of the ICKEPS 2012 competition, which is an example of a difficult problem stand- ing on the borderline between planning and scheduling. It describes state-of-art techniques of the modern artificial intelligence that were chosen for this purpose. It guides the reader in the process of modeling the Petrobras domain in PDDL language and explains the results provided by the existing tools used within plan- ning community. In the end it compares the results of the chosen approach to the other approaches used in ICKEPS 2012 competition, showing that the existing sequential planning systems are usable only for solving smaller problem instances of this domain