Academia.edu no longer supports Internet Explorer.
To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser.
Anentome helena (von dem Busch in Philippi, 1847) is known among aquarium enthusiasts as the "assassin snail" , and is usually kept to prey on other snail species that are considered pests in home aquaria. There have been concerns that, given its prevalence in the ornamental pet trade, it is only a matter of time before this predator is introduced to the wild. We report the first occurrence of established populations of Anentome helena in a non-native habitat, and provide CO1 sequences of the species from the wild.
Molecular Phylogenetics and Evolution
Against expectation: A short sequence with high signal elucidates cone snail phylogeny2011 •
2013 •
Predation is often difficult to observe or quantify for species that are rare, very small, aquatic or nocturnal. The assessment of such species’ diet can be conducted using molecular methods that target prey DNA remaining in predators’ guts and faeces. These techniques do not require high taxonomic expertise, are applicable to soft-bodied prey and allow for identification at the species level. However, for generalist predators, the presence of mixed prey DNA in guts and faeces can be a major impediment as it requires development of specific primers for each potential prey species for standard (Sanger) sequencing. Therefore, next generation sequencing methods have recently been applied to such situations. In this study, we used 454-pyrosequencing to analyse the diet of Powelliphanta augusta, a carnivorous landsnail endemic to New Zealand and critically endangered after most of its natural habitat has been lost to opencast mining. This species was suspected to feed mainly on earthworms. Although earthworm tissue was not detectable in snail faeces, earthworm DNA was still present in sufficient quantity to conduct molecular analyses. Based on faecal samples collected from 46 landsnails, our analysis provided a complete map of the earthworm- based diet of P. augusta. Predated species appear to be earthworms that live in the leaf litter or earthworms that come to the soil surface at night to feed on the leaf litter. This indicates that P. augusta may not be selective and probably predates any earthworm encountered in the leaf litter. These findings are crucial for selecting future translocation areas for this highly endangered species. The molecular diet analysis protocol used here is particularly appropriate to study the diet of generalist predators that feed on liquid or soft-bodied prey. Because it is non-harmful and non-disturbing for the studied animals, it is also applicable to any species of conservation interest.
Molecular Phylogenetics and Evolution
A very short, functionally constrained sequence diagnoses cone snails in several Conasprella clades2012 •
Evolutionary Ecology Research
Mitochondrial phylogeography of the land snail Cornu aspersum: Tracing population history and the impact of human‐mediated invasion in austral South AmericaAim We provide insights into one of the most widespread biological invasions by reconstructing the molecular phylogeographic history of non-native populations of the land snail Cornu aspersum in austral South America. The goals of this work were: (1) to examine the genetic diversity of native vs. non-native populations of C. aspersum; (2) to analyze the species’ history of dispersal and colonization in austral South America; (3) to compare the biogeographic patterns of native and introduced populations; and (4) to identify signs of population bottlenecks and /or multiple independent introductions that could explain the current genetic diversity. Location North Africa, northwest Europe, North America (California, U.S.), and South America (Chile). Methods Sequence data from mitochondrial Cytochrome b (Cytb) gene was obtained from C. aspersum individuals collected from two localities subject to recent introductions (Californian and Chilean populations in North and South America, respectively) and compared it with previously published data from the species’ native range (northeast and northwest Africa), as well as with data from a previous introduction (northwest Europe). Genetic variation within and among groups was quantified. Genetic structure was inferred by analysis of molecular variance (AMOVA). Phylogenetic and genetic diversity analyses were used to reconstruct phylogeographical patterns. Results Among the 204 sequences from native and non-native populations, we identified 111 haplotypes, from which only three were shared between American and European populations, and no haplotypes were shared between Africa and the introduced populations. The analysis of genetic distances placed European populations between American and African populations. The AMOVAs showed that most of the genetic variance is present within populations rather than among populations or among localities. Haplotype network and phylogenetic analyses consistently demonstrated the existence of two major clades, separating the Tunisian populations and the American populations. Conclusions Genetic diversity and genealogical relationships support the hypothesis of multiple introductions of C. aspersum into austral South America. At least a portion of the current genetic diversity of Chilean populations derives from North American and European (France, Italy and Spain) populations. Keywords: Alien species, biogeography, molluscs, agricultural pests, bottlenecks, multiple introductions.
ISRN Zoology (Print)
Phylogenetic Relationships among Populations of the Vineyard Snail Cernuella virgata (Da Costa, 1778)2013 •
Scientific Reports
Morphological and molecular analysis of cryptic native and invasive freshwater snails in Chile2019 •
2022 •
The Collaborative Laboratories for Advanced Decommissioning Science (CLADS), Japan Atomic Energy Agency (JAEA), had been conducting the Nuclear Energy Science & Technology and Human Resource Development Project (hereafter referred to “the Project”) in FY2020. The Project aims to contribute to solving problems in the nuclear energy field represented by the decommissioning of the Fukushima Daiichi Nuclear Power Station, Tokyo Electric Power Company Holdings, Inc. (TEPCO). For this purpose, intelligence was collected from all over the world, and basic research and human resource development were promoted by closely integrating/collaborating knowledge and experiences in various fields beyond the barrier of conventional organizations and research fields. The sponsor of the Project was moved from the Ministry of Education, Culture, Sports, Science and Technology to JAEA since the newly adopted proposals in FY2018. On this occasion, JAEA constructed a new research system where JAEA-academia collaboration is reinforced and medium-to-long term research/development and human resource development contributing to the decommissioning are stably and consecutively implemented. Among the adopted proposals in FY2020, this report summarizes the research results of the “Development of environmental mitigation technology with novel water purification agents” conducted in FY2020. The present study aims to develop a reusable adsorbent for strontium ions through joint research between Japan and the United Kingdom, and to reduce the amount of used adsorbent generated through the decontamination process. The basic strategy of this research is to produce adsorbents and examine their Sr adsorption performance at Shinshu University. The structural analyses of the adsorbents are conducted by the Institute for Molecular Science (IMS) and the UK teams. The adsorption data and structural information are theoretically analyzed at Tohoku University with data science, leading to a new synthetic guideline of adsorbents for improving the adsorption performance, which is fed back to Shinshu University. The production and testing of wasteforms from the adsorbents are focused on by the UK teams. With this approach, the consistent study on the adsorbents from the production to the disposal can be carried out. This year, the adsorbents were prepared under various conditions by the fabrication method found in the preliminary research and the changes of the obtained materials in physical properties, such as the particle size distribution and mechanical strength, were investigated at Shinshu University. Moreover, the Sr adsorption experiments were conducted by use of the aqueous solution of strontium chloride and the simulant contaminated water in which strontium chloride was dissolved in artificial seawater. The concentration of Sr ion in the supernatant was measured by ICP equipment and the cation exchange capacity and the distribution coefficient were calculated for evaluation of their Sr adsorption properties. The obtained materials were sent to the IMS and the UK teams for structural analysis, and the adsorption data was sent to Tohoku University for data analysis. IMS analyzed the materials by XPS study for investigation of the relationship between the preparation conditions and the electronic states. In addition, the structure analyses of the Sr-adsorbed materials with SEM were carried out for investigation of the changes derived from the differences of the preparation conditions. AFM measurement in liquid phase was conducted as a preliminary study. The obtained results were sent to Tohoku University for detailed analysis. Tohoku University collected and organized data on the structural information and the adsorption property of the materials, which were summarized to create supervised data. The features of the microstructure were extracted from the SEM images. Furthermore, the core level shift of the model having Ti defects in the layered crystal structure was evaluated by first-principles electronic state calculation, and the composition formula was estimated by comparing with the XPS measurement data. These studies enabled to make the connection between the microstructure at the crystal level and the maximum adsorption amount of Sr ions. The above-mentioned research was carried out under the guidance of the representative in close cooperation between each research item and with CLADS. Besides, discussions and meetings were held for promoting the research implementation plan.
Revista de Gestão
Gestão Da Estratégica Da Responsabilidade Socioambiental Empresarial: Operacionalização Por Meio Do Sistema De Gestão Integrado2012 •
2016 •
In North Indian Classical Music, raga forms the basic structure over which individual improvisations is performed by an artist based on his/her creativity. The Alap is the opening section of a typical Hindustani Music (HM) performance, where the raga is introduced and the paths of its development are revealed using all the notes used in that particular raga and allowed transitions between them with proper distribution over time. In India, corresponding to each raga, several emotional flavors are listed, namely erotic love, pathetic, devotional, comic, horrific, repugnant, heroic, fantastic, furious, peaceful. The detection of emotional cues from Hindustani Classical music is a demanding task due to the inherent ambiguity present in the different ragas, which makes it difficult to identify any particular emotion from a certain raga. In this study we took the help of a high resolution mathematical microscope (MFDFA or Multifractal Detrended Fluctuation Analysis) to procure information...
Turkish Journal of Obstetrics and Gynecology
Gastric cancer in differential diagnosis of hyperemesis gravidarum: Case report2008 •
International Journal of Group Theory
Computing character degrees via a Galois connection2015 •
Journal of hospital medicine
Detecting Sepsis: Are Two Opinions Better Than One?2017 •
Zeitschrift für anorganische und allgemeine Chemie
Der erste molekulare quadratisch-antiprismatische Ga8-Cluster mitcloso-Struktur2000 •
Journal of Natural Science, Biology and Medicine
Prevention of post-partum hemorrhage by rectal Misoprostol: A randomized clinical trial2013 •
2020 •
Archives of General Psychiatry
Capsulotomy for Obsessive-Compulsive Disorder2008 •
Macabéa - Revista Eletrônica do Netlli
A Representação Discursiva Em Charges Dos Atores Sociais Beneficiados Pelo Bolsa Família: Uma Análise Pautada No Significado Representacional e No Eixo Do Saber2019 •
2020 •
Alcoholism: Clinical and Experimental Research
Neurobiological Processes in Alcohol Addiction2001 •
Revue Française d'Allergologie
Effet préventif du lait de brebis fermenté par Pediococcus acidilactici et Lactobacillus acidophilus sur l’altération de la muqueuse intestinale de souris Balb/C sensibilisées à la β-lactoglobuline bovine2018 •
2013 •
Rilce. Revista de Filología Hispánica
Melos" y "opsis" en la crítica de Northrop FryeGeochemistry, Geophysics, Geosystems
Reconciling mantle wedge thermal structure with arc lava thermobarometric determinations in oceanic subduction zones2016 •
Environmental Earth Sciences
First geomatic restitution of the sinkhole known as ‘Pozzo del Merro’ (Italy), with the integration and comparison of ‘classic’ and innovative geomatic techniques2018 •
Journal of Pharmacology and Pharmacotherapeutics
Sofosbuvir: A novel treatment option for chronic hepatitis C infection2014 •
2021 •
2018 •
Pars of Jahrom University of Medical Sciences
Comparing the demand for blood in hospitals of Jahrom and standard blood transfusion indices2014 •