scholarly journals The most northerly Black Witch (Ascalapha odorata): a tropical moth in the Canadian Arctic

2014 ◽  
Vol 128 (1) ◽  
pp. 77
Author(s):  
Torbjørn Ekrem ◽  
Peter G. Kevan ◽  
Thomas S. Woodcock ◽  
Paul D. N. Hebert
Keyword(s):  
Geographical Area ◽  
Geographic Origin ◽  
Dna Barcode ◽  
Canadian Arctic ◽  
Current Data ◽  
Central American ◽  
Data Systems ◽  
Life Data ◽  
Extensive Analysis ◽  
Large Geographical Area

A specimen of the Black Witch (Ascalapha odorata) was collected in August 2006 near Churchill, Manitoba, at 58.7652°N. This represents the most northerly record for this species. DNA barcode comparison of 93 specimens of A. odorata in the Barcode of Life Data Systems revealed low genetic divergence even though these specimens were collected from a large geographical area. The haplotype of the Churchill specimen was shared by only one other individual (collected in the Yucatán Peninsula of Mexico) in the Barcode of Life Data Systems. A definite assignment of the geographic origin of the Churchill specimen is not possible with current data, but more extensive analysis of Central American populations with additional genetic markers might resolve this uncertainty.

DNA barcoding the Lepidoptera inventory of a large complex tropical conserved wildland, Area de Conservacion Guanacaste, northwestern Costa Rica

Genome ◽  
2016 ◽  
Vol 59 (9) ◽  
pp. 641-660 ◽  
Author(s):  
Daniel H. Janzen ◽  
Winnie Hallwachs
Keyword(s):  
Costa Rica ◽  
Dna Barcoding ◽  
Dna Barcode ◽  
Species Level ◽  
Data Systems ◽  
Species Discovery ◽  
Life Data ◽  
And Behavior ◽  
Specimen Identification ◽  
Biodiversity Information

The 37-year ongoing inventory of the estimated 15 000 species of Lepidoptera living in the 125 000 terrestrial hectares of Area de Conservacion Guanacaste, northwestern Costa Rica, has DNA barcode documented 11 000+ species, and the simultaneous inventory of at least 6000+ species of wild-caught caterpillars, plus 2700+ species of parasitoids. The inventory began with Victorian methodologies and species-level perceptions, but it was transformed in 2004 by the full application of DNA barcoding for specimen identification and species discovery. This tropical inventory of an extraordinarily species-rich and complex multidimensional trophic web has relied upon the sequencing services provided by the Canadian Centre for DNA Barcoding, and the informatics support from BOLD, the Barcode of Life Data Systems, major tools developed by the Centre for Biodiversity Genomics at the Biodiversity Institute of Ontario, and available to all through couriers and the internet. As biodiversity information flows from these many thousands of undescribed and often look-alike species through their transformations to usable product, we see that DNA barcoding, firmly married to our centuries-old morphology-, ecology-, microgeography-, and behavior-based ways of taxonomizing the wild world, has made possible what was impossible before 2004. We can now work with all the species that we find, as recognizable species-level units of biology. In this essay, we touch on some of the details of the mechanics of actually using DNA barcoding in an inventory.

scholarly journals Species Identification of Rock Oysters Collected from the Dhofar Region, Sultanate of Oman

2012 ◽  
Vol 17 ◽  
pp. 61 ◽  
Author(s):  
Mikhail V. Chesalin ◽  
Salem A. Al-Ghassani ◽  
Mohammed A. Balkhair
Keyword(s):  
Phylogenetic Analysis ◽  
Species Composition ◽  
Species Identification ◽  
Dna Sequences ◽  
Dna Barcode ◽  
Rocky Shores ◽  
Data Systems ◽  
Sultanate Of Oman ◽  
Life Data ◽  
Taxonomic Studies

Oysters are commonly found on rocky shores along the Dhofar coast of Oman, but the species composition has not yet been studied. In an attempt to determine the species of these oysters, samples from four sites (Mirbat, Sadah, Hadbin, and Hasik) were collected and analyzed using DNA sequences that were compared with the database of GenBank/National Center for Biotechnology Information (NCBI) and Barcoding of Life Data Systems (BOLD). BLAST results of DNA sequences showed that there were no existing sequences available on NCBI/GenBank and BOLD. The DNA barcode sequences generated in this study can be employed as standards for this species and may be of use in taxonomic studies. Phylogenetic analysis demonstrated that the oysters from Oman exhibit homology with Saccostrea species cucullata or mordax. 

scholarly journals Revision and annotation of DNA barcode records for marine invertebrates: report of the 8th iBOL conference hackathon

2021 ◽  
Author(s):  
Adriana E. Radulovici ◽  
Pedro E. Vieira ◽  
Sofia Duarte ◽  
Marcos A. L. Teixeira ◽  
Luisa M. S. Borges ◽  
...  
Keyword(s):  
Marine Invertebrates ◽  
Dna Barcode ◽  
Current Data ◽  
Data Curation ◽  
Practical Reasons ◽  
Data Systems ◽  
Complex Species ◽  
C Complex ◽  
Taxonomic Groups ◽  
Sequence Quality

AbstractThe accuracy of the identification of unknown specimens using DNA barcoding and metabarcoding relies on reference libraries containing records with reliable taxonomy and sequence quality. A rampant growth in barcode data led to a stringent need for data curation, especially in taxonomically difficult groups such as marine invertebrates. A major effort in curating marine barcode data deposited in the Barcode of Life Data Systems (BOLD) has been undertaken during the 8th International Barcode of Life Conference (Trondheim, Norway, 2019). For practical reasons, only major taxonomic groups were reviewed and annotated (crustaceans, echinoderms, molluscs, and polychaetes). The congruence of Linnean names with Barcode Index Numbers (BINs) was investigated, and the records deemed uncertain were annotated with four tags: a) MIS-ID (misidentified, mislabeled or contaminated records), b) AMBIG (ambiguous records unresolved with the current data), c) COMPLEX (species occurring in multiple BINs), and d) SHARE (barcodes shared between species). A total of 83,712 specimen records corresponding to 7,576 species were reviewed and 39% of the species were tagged (7% MIS-ID, 17% AMBIG, 14% COMPLEX, and 1% SHARE). High percentages (>50%) of AMBIG tags were recorded in gastropods, whereas COMPLEX tags dominated in crustaceans and polychaetes. This high proportion of tagged species reflects either flaws in the barcoding workflow (e.g., misidentification, cross -contamination) or taxonomic difficulties (e.g., synonyms, undescribed species). Although data curation is crucial for barcode applications, such manual efforts of reviewing large datasets are not sustainable and the implementation of automated solutions to the furthest possible extent is hi ghly desirable.

scholarly journals 88: Effectiveness of Therapeutic Hypothermia on Transport within a Large Geographical Area

2015 ◽  
Vol 20 (5) ◽  
pp. e66-e66
Author(s):  
S Redpath ◽  
B Lemyre ◽  
H Moore ◽  
J Ponnuthurai ◽  
J Chan ◽  
...  
Keyword(s):  
Therapeutic Hypothermia ◽  
Geographical Area ◽  
Large Geographical Area

scholarly journals Prevalence of systemic lupus erythematosus in Spain: higher than previously reported in other countries?

Rheumatology ◽  
2020 ◽  
Vol 59 (9) ◽  
pp. 2556-2562 ◽  
Author(s):  
Raúl Cortés Verdú ◽  
José M Pego-Reigosa ◽  
Daniel Seoane-Mato ◽  
Mercedes Morcillo Valle ◽  
Deseada Palma Sánchez ◽  
...  
Keyword(s):  
Lupus Erythematosus ◽  
Adult Population ◽  
Geographical Area ◽  
Geographic Origin ◽  
The United States ◽  
Epidemiological Studies ◽  
Population Based ◽  
Cross Sectional Study ◽  
Medical Visit ◽  
Cross Sectional

Abstract Objectives Prevalence of SLE varies among studies, being influenced by study design, geographical area and ethnicity. Data about the prevalence of SLE in Spain are scarce. In the EPISER2016 study, promoted by the Spanish Society of Rheumatology, the prevalence estimate of SLE in the general adult population in Spain has been updated and its association with sociodemographic, anthropometric and lifestyle variables has been explored. Methods Population-based multicentre cross-sectional study, with multistage stratified and cluster random sampling. Participants were contacted by telephone to carry out a questionnaire for the screening of SLE. Investigating rheumatologists evaluated positive results (review of medical records and/or telephone interview, with medical visit if needed) to confirm the diagnosis. To calculate the prevalence and its 95% CI, the sample design was taken into account and weighing was calculated considering age, sex and geographic origin. Multivariate logistic regression models were defined to analyse which sociodemographic, anthropometric and lifestyle variables included in the telephone questionnaire were associated with the presence of SLE. Results 4916 subjects aged 20 years or over were included. 16.52% (812/4916) had a positive screening result for SLE. 12 cases of SLE were detected. The estimated prevalence was 0.21% (95% CI: 0.11, 0.40). SLE was more prevalent in the rural municipalities, with an odds ratio (OR) = 4.041 (95% CI: 1.216, 13.424). Conclusion The estimated prevalence of SLE in Spain is higher than that described in most international epidemiological studies, but lower than that observed in ethnic minorities in the United States or the United Kingdom.

scholarly journals Morfología, caracterización y distribución geográfica de Blechnum cordatum (Blechnaceae-Pteridophyta).

2008 ◽  
Vol 33 ◽  
pp. 29-46 ◽  
Author(s):  
Carmen Prada ◽  
Cristina H. Rolleri ◽  
Lilian Passarelli
Keyword(s):  
South America ◽  
Geographical Distribution ◽  
Geographical Area ◽  
Vulnerable Species ◽  
Vegetative Tissue ◽  
Juan Fernández Islands ◽  
Large Geographical Area ◽  
Distribución Geográfica ◽  
Morphology Characterization ◽  
Juan Fernandez Islands

ABSTRACT. Morphology, characterization, and geographical distribution of Blechnum cordatum (Blechnaceae-Pteridophyta). Specimens of Blechnum cordatum from localities of its large geographical area were analized. The species grows in Mesoamerica, Antillas and South America, from Venezuela and Colombia to Bolivia, SE and centre of Brazil, Paraguay, Argentina, centre and S of Chile, and Juan Fernández Islands. Blechnum cordatum is a tolerant, not vulnerable species, with large sporophytes; erect, scaly rhizomes; dimorphic fronds with scaly stipes and axes; lanceolate sterile laminae with lanceolate to oblong, coriaceae, finely denticulate to serrate, superficially scaly and hairy, attached by costa (peciolulate) pinnae, with cuneate- truncate to subcordate or auriculate bases, and narrowly lanceolate fertile laminae with vegetative tissue of pinnae reduced to the portion which support the undulate to erose indusia and continuous coenosorus. Veins are free, simple, geminate and furcate, the latter ramdomly dividing at different distances from the costa, all ending in large, active hydathodes. Aerophores, located only at the base of pinnae, may be absent. Spores have a cristate-reticulate perispore with filiform, ramified processes, and a smooth to granulate exospore. Based on this study, a new description of Blechnum cordatum, and its taxonomy is presented, along with comments on affinities with other neotropical and paleotropical species of the genus.Key words. Blechnaceae, Blechnum cordatum, morphology, taxonomy, palynology, geographical distribution.RESUMEN. Morfología, caracterización y distribución geográfica de Blechnum cordatum (Blechnaceae-Pteridophyta). Blechnum cordatum fue estudiado en especímenes de numerosas localidades de su extensa área de distribución. Crece en Mesoamérica, Antillas, Sudamérica, desde Venezuela y Colombia a Bolivia, SE y centro de Brasil, Paraguay, Argentina, centro y S de Chile e islas de Juan Fernández. Es una especie poco vulnerable, tolerante, con esporófitos grandes, rizomas a oblongas con pinnas coriáceas, lanceolado-oblongas, finamente denticuladas a aserradas, superficialmente escamosas y pilosas, unidas al raquis por la costa (pecioluladas), con bases cuneado- truncadas a subcordadas o auriculadas y láminas fértiles estrechamente lanceoladas con el tejido vegetativo de las pinnas reducido a la porción de la lámina que lleva el cenosoro continuo e indusio ondulado a eroso. Las venas son simples, geminadas y bifurcadas al azar a distancias variables de la costa y terminan en grandes hidatodos activos, sobresalientes o más o menos planos. Los aeróforos, presentes sólo en la base de las pinnas, pueden faltar. Las esporas son monoletas, con perisporio crestado-reticulado que lleva procesos filiformes y exosporio subliso a granulado. La especie se describe e ilustra en detalle, se actualiza su taxonomía y se comentan sus afinidades con otras especies neotropicales y paleotropicales del género.Palabras clave. Blechnaceae, Blechnum cordatum, morfología, taxonomía, palinología, distribución geográfica.

Mobility in Student Data Systems

2017 ◽  
Author(s):  
Ron Avi Astor ◽  
Linda Jacobson ◽  
Stephanie L. Wrabel ◽  
Rami Benbenishty ◽  
Diana Pineda
Keyword(s):  
Current Data ◽  
Data Systems ◽  
Homeless Students ◽  
New School ◽  
Student Data ◽  
Mobile Students ◽  
Definition Of ◽  
Additional Support ◽  
Changing Schools

For schools to be more proactive about addressing the needs of transitioning students and families, it’s important that district officials have a good sense of how often students are changing schools, who these students are, where they’re coming from, and where they’re going. Currently, there is wide variation in how states handle mobility in their student data systems. While some states have a specific definition of mobility, there are also differences in those definitions. By law, states track migrant and homeless students, but not all flag other groups of students that are likely to be mobile, such as military-connected students or those in foster care. Another complication is that when students move, schools do not mark the reason for the transition. Without knowing the reason for the change, all mobile students are lumped into one category— movers. But, as the previous chapter showed, the circumstances surrounding a move can affect students in different ways and have implications for how schools respond. If a move is proactive, for example, the family and the child may feel less stress and the student might feel more positive about the experience. If the change into a new school is reactive—caused perhaps by a difficult financial situation or leaving a negative situation at another school— the student and parents might feel more anxiety about the new school and need additional support and friendship during that time. Current data systems and the information they provide make it very difficult for researchers to separate the effect of the school move from the effect of the circumstances surrounding the move. These are important distinctions for educators to consider. Data systems do allow for researchers and practitioners to understand if a student moved during the summer or during the academic year. The timing of moves may be suggestive of the type of move a student is making; proactive moves may be more likely to occur in the summer months when learning will not be disrupted. Mid-year moves may have a proactive element, such as families moving for a better job, but they may also be reactive in nature, such as a loss of housing.

scholarly journals Hymenoptera of Canada

ZooKeys ◽  
2019 ◽  
Vol 819 ◽  
pp. 311-360 ◽  
Author(s):  
Andrew M.R. Bennett ◽  
Cory S. Sheffield ◽  
Jeremy R. deWaard
Keyword(s):  
The State ◽  
Data Systems ◽  
Previous Survey ◽  
Additional Species ◽  
Life Data ◽  
Unrecorded Species

A summary of the numbers of species of the 83 families of Hymenoptera recorded in Canada is provided. In total, 8757 described species are recorded compared to approximately 6000 in 1979, which is a 46% increase. Of the families recognized in 1979, three have been newly recorded to Canada since the previous survey: Anaxyelidae (Anaxyleoidea), Liopteridae (Cynipoidea), and Mymarommatidae (Mymarommatoidea). More than 18,400 BINs of Canadian Hymenoptera are available in the Barcode of Life Data Systems (Ratnasingham and Hebert 2007) implying that nearly 9650 undescribed or unrecorded species of Hymenoptera may be present in Canada (and more than 10,300 when taking into account additional species that have not been DNA barcoded). The estimated number of unrecorded species is very similar to that of 1979 (10,637 species), but the percentage of the fauna described/recorded has increased from 36% in 1979 to approximately 45% in 2018. Summaries of the state of knowledge of the major groups of Hymenoptera are presented, including brief comments on numbers of species, biology, changes in classification since 1979, and relevant taxonomic references.

Security Model for Educational Satellite Networks

2011 ◽  
pp. 594-601
Author(s):  
Sanjay Jasola ◽  
Ramesh C. Sharma
Keyword(s):  
Satellite Communication ◽  
Instructional Television ◽  
Geographical Area ◽  
Satellite Networks ◽  
Security Model ◽  
Video Signals ◽  
Satellite Technology ◽  
Large Geographical Area ◽  
Television Experiment ◽  
The Masses

Education has been the greatest tool for human resources development. The advances in information and communication technology has brought out a paradigm shift in the educational sector by making it more accessible, relevant, qualitative, and equitable for the masses. The use of satellite technology like INTELSAT, PEACESAT, and ATS in education has enhanced the opportunities for learners to acquire new skills (Moore & Kearsley, 1996). Both on-campus and distance mode students can be benefited by it. The satellite technology can serve a large geographical area. It allows audio and video signals uplinked from a station to be received to any number of downlink earth stations (Willis, 1995). Oliver (1994) reported that the transmission costs do not increase with the increase in the number of downlink stations. Satellite Instructional Television Experiment (SITE), one of the India’s early experiments conducted during 1975 to 1976, produced and transmitted 150 different science programs of 10 to 12 minutes duration, offering them to more than 2,330 villages in six geographical clusters. According to Shrestha (1997) and Govindaraju and Banerjee (1999), this experiment demonstrates the effectiveness of satellite communication for educational purposes.

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