scholarly journals Recognition and identification of species in the Bombus lucorum-complex - A review and outlook

2014 ◽  
Author(s):  
Silas Bossert
Keyword(s):  
Species Identification ◽  
Scientific Community ◽  
Species Recognition ◽  
Molecular Data ◽  
European Species ◽  
The Status ◽  
Bombus Lucorum ◽  
Identification Of Species ◽  
Marking Pheromones ◽  
Number Of Authors

The recognition of cryptic species represents one of the major challenges in current taxonomy and affects our understanding of global diversity. In practice, the process from discovery to acceptance in the scientific community can take an extensive length of time. A prime example is the traditionally difficult taxonomy of the cryptic bumblebee species belonging to the Bombus lucorum-complex. The status of the three European species in the group - Bombus lucorum and the closely related Bombus cryptarum and Bombus magnus - has recently become widely accepted, primarily due to investigations of nucleotide sequences and marking pheromones. In contrast, doubts prevail concerning the validity of species identification based on morphology. As a consequence, our knowledge of the species is muddled in a mire of unreliable and confusing literature data from a large number of authors over the centuries. To clarify this issue, this paper provides a recapitulation of the historical literature and highlights the milestones in the process of species recognition. Further, the possibility of a morphologically based species identification is discussed in the context of new molecular data. Finally, this review outlines the current challenges and provides directions for future issues.

scholarly journals Taxonomic revision of doubtful Brazilian freshwater shrimp species of genus Macrobrachium (Decapoda, Palaemonidae)

2013 ◽  
Vol 102 (4) ◽  
pp. 426-437 ◽  
Author(s):  
Leonardo G. Pileggi ◽  
Fernando L. Mantelatto
Keyword(s):  
Intraspecific Variation ◽  
Morphological Analysis ◽  
Species Recognition ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Molecular Data ◽  
Valid Species ◽  
Separate Species ◽  
Shrimp Species ◽  
The Status

The freshwater prawns of the genus Macrobrachium Spence Bate, 1868 are widely distributed in rivers of tropical and subtropical regions and represent an interesting group with controversial taxonomy. The morphological characters traditionally used to separate species have shown a high intraspecific variation. Doubts about the status of M. birai Lobão, Melo & Fernandes, 1986, M. holthuisi Genofre & Lobão, 1978 and M. petronioi Melo, Lobão & Fernandes, 1986 have been arisen due to the high resemblance of the former two species with M. olfersi (Wiegmann, 1836), and the latter one with M. potiuna (Müller, 1880). Therefore, we performed a detailed morphological analysis of these species, including new characters not usually used in the species recognition. The present results here with molecular data lead us to conclude that M. birai and M. holthuisi are junior synonyms of M. olfersi, and M. petronioi is a junior synonym of M. potiuna. Considering these synonymies, 17 valid species are now reported for the Brazilian territory.

The status of Myriangiaceae (Dothideomycetes)

Phytotaxa ◽  
2014 ◽  
Vol 176 (1) ◽  
pp. 219 ◽  
Author(s):  
ASHA J. DISSANAYAKE ◽  
RUVISHIKA S. JAYAWARDENA ◽  
SARANYAPHAT BOONMEE ◽  
KASUN M. THAMBUGALA ◽  
QING TIAN ◽  
...  
Keyword(s):  
Sequence Data ◽  
Molecular Data ◽  
Molecular Sequence Data ◽  
Molecular Sequence ◽  
The Family ◽  
The Status ◽  
Sexual State ◽  
Morphological And Molecular Data ◽  
Asexual State ◽  
Molecular Characters

The family Myriangiaceae is relatively poorly known amongst the Dothideomycetes and includes genera which are saprobic, epiphytic and parasitic on the bark, leaves and branches of various plants. The family has not undergone any recent revision, however, molecular data has shown it to be a well-resolved family closely linked to Elsinoaceae in Myriangiales. Both morphological and molecular characters indicate that Elsinoaceae differs from Myriangiaceae. In Elsinoaceae, small numbers of asci form in locules in light coloured pseudostromata, which form typical scab-like blemishes on leaf or fruit surfaces. The coelomycetous, “Sphaceloma”-like asexual state of Elsinoaceae, form more frequently than the sexual state; conidiogenesis is phialidic and conidia are 1-celled and hyaline. In Myriangiaceae, locules with single asci are scattered in a superficial, coriaceous to sub-carbonaceous, black ascostromata and do not form scab-like blemishes. No asexual state is known. In this study, we revisit the family Myriangiaceae, and accept ten genera, providing descriptions and discussion on the generic types of Anhellia, Ascostratum, Butleria, Dictyocyclus, Diplotheca, Eurytheca, Hemimyriangium, Micularia, Myriangium and Zukaliopsis. The genera of Myriangiaceae are compared and contrasted. Myriangium duriaei is the type species of the family, while Diplotheca is similar and may possibly be congeneric. The placement of Anhellia in Myriangiaceae is supported by morphological and molecular data. Because of similarities with Myriangium, Ascostratum (A. insigne), Butleria (B. inaghatahani), Dictyocyclus (D. hydrangea), Eurytheca (E. trinitensis), Hemimyriangium (H. betulae), Micularia (M. merremiae) and Zukaliopsis (Z. amazonica) are placed in Myriangiaceae. Molecular sequence data from fresh collections is required to confirm the relationships and placement of the genera in this family.

The Handbook of Acoustic Bat Detection

2021 ◽  
Author(s):  
Volker Runkel ◽  
Guido Gerding ◽  
Ulrich Marckmann
Keyword(s):  
Species Recognition ◽  
Acoustic Detection ◽  
Voluntary Work ◽  
Study Planning ◽  
Open Questions ◽  
Identification Of Species ◽  
Analysis Of Results ◽  
Acoustic Recording ◽  
Bat Detection ◽  
Activity Indices

An accessible and comprehensive guide to all things acoustic bat detection. This highly illustrated handbook provides an in-depth understanding of acoustic detection principles, study planning, data handling, properties of bat calls, manual identification of species, automatic species recognition, analysis of results, quality assurance and the background physics of sound. No other method of detecting bats is so popular and widespread in the context of environmental assessment and voluntary work as acoustic detection, and its increased use has driven the development of a large number of sophisticated devices and analytical methods. Acoustic detection has become a standard approach for establishing the presence of bats, carrying out species identification and monitoring levels of activity. The resolution, accuracy and scale with which these tasks can be done has risen dramatically with the availability of automated real-time recording. But anyone interested in acoustic recording will quickly recognise that there are still quite a few open questions about the limits and possibilities of acoustic detection. Clear definitions of how to handle the data are usually missing, for example, and there are no clearly described activity indices. In response to the lack of thorough information on the underlying science of acoustic detection, the authors present this handbook.

scholarly journals Environmental diagnosing of the new algal pollution of Tigris River in Iraq

2021 ◽  
Vol 877 (1) ◽  
pp. 012024
Author(s):  
Warqaa Y. Salih ◽  
Fikrat M. Hassan
Keyword(s):  
Ribosomal Rna ◽  
Computer Software ◽  
Analysis Data ◽  
Molecular Data ◽  
Algal Flora ◽  
Tigris River ◽  
Identification Of Species ◽  
Phylogenetic Identification ◽  
Polymerase Chain ◽  
Flora Of Iraq

Abstract The purpose of this study is to use eDNA in the biodiversity of the Tigris river’s sediment. Algal samples were collected and examined under light microscopy. The collected algae were cultured, and after their growth, the DNA extractions were made from culture and amplified 16S ribosomal RNA gene partial sequences data by Polymerase Chain Reaction (PCR). Phylogenetic identification of species was conducted by the evaluation of obtained sequence analysis data by using computer software. Leptolyngbya benthonica (MN 714226.1) and Nostoc paludosum (MN 714225.1) were identified by molecular analysis and registered at NCBI and considered as a new record to the algal flora of Iraq. Implementing molecular data in the taxonomy of species will be essential to solve the taxonomic problems associated with microscopic methods.

scholarly journals Renascence of the administrative jurisdiction in Hungary

2019 ◽  
Vol 3 (1) ◽  
pp. 92-102
Author(s):  
Edit Horváth
Keyword(s):  
Public Administration ◽  
Scientific Community ◽  
Constitutional Court ◽  
Legal Analysis ◽  
National Assembly ◽  
The Status ◽  
Procedural Code ◽  
Legal Security ◽  
Administrative Jurisdiction ◽  
Law Making

The administrative jurisdiction is one of the guarantees of the civil legal security. However, a state has to „grow up” to this as to every legal guaranties. Administrative jurisdiction, and within it the creation of an independent administrative procedural order has been cause for much excitement in the law-making community basically from the early 1990 s, when control over administrative rulings became genuinely possible again. It was thus unsurprising that the codification of the Act on the procedural code of public administration was followed with interest, and the professional and scientific community gave regular updates on the status of the codification. Therefore, the fact that the president did not sign the Act passed by the National Assembly, but sent it to the Constitutional Court for evaluation instead caused a major stir. Based on the decision 1/2017. (I. 17.) of the Constitutional Court, the National Assembly eventually modified a number of provisions in the Act on the administrative procedural code and passed the Act again, which was then promulgated on March 1, 2017 as Act I/2017 on the administrative procedural code, and became effective, as per initial plans, on January 1, 2018. The article is not an ode to the Hungarian administrative jurisdiction or to the new independent administrative procedural code, but a historical and mainly legal analysis.

A curious nematode, Diploscapteroides persicus n. sp. (Nematoda: Rhabditida: Rhabditomorpha), from Iran with a note on the status of the male genital papillae

Nematology ◽  
2015 ◽  
Vol 17 (9) ◽  
pp. 1045-1056 ◽  
Author(s):  
Razieh Ghaemi ◽  
Ebrahim Pourjam ◽  
Sergio Álvarez-Ortega ◽  
Majid Pedram ◽  
Mohammad Reza Atighi
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Tail Length ◽  
Molecular Data ◽  
Rrna Genes ◽  
Valid Species ◽  
Female Tail ◽  
The Status ◽  
Species Being ◽  
Male Genital

Diploscapteroides persicus n. sp. is described and illustrated based on morphological, morphometric and molecular data. The new species is mainly characterised by female body length of 469-673 μm, female tail length of 51-99 μm, shape of gubernaculum and spicules and arrangement of male genital papillae. Also, the arrangement of male genital papillae of the new species shows the presence of precloacal papillae, a feature that has not been previously described for the genus. The new species is comparable with all valid species of the genus, namely D. boettgeri, D. brevicauda, D. chitinolabiatus, D. coroniger, D. dacchensis and D. flexuosus, from which the morphological comparisons of the new species with aforementioned species are discussed. Phylogenetic analyses using partial sequences of SSU and LSU rRNA genes were performed for the new species, being the first representative of the genus to be phylogenetically studied using both Bayesian inference (BI) and maximum likelihood (ML) methods, and revealed that D. persicus n. sp. formed a clade with a species of Cephaloboides.

Six new species of Heteropriapulus (Monogenea: Dactylogyridae) from South American fishes with an amended diagnosis to the genus

Zootaxa ◽  
2017 ◽  
Vol 4290 (3) ◽  
pp. 459 ◽  
Author(s):  
ALINE ANGELINA ACOSTA ◽  
LIDIANE FRANCESCHINI ◽  
ALINE CRISTINA ZAGO ◽  
TOMÁŠ SCHOLZ ◽  
REINALDO JOSÉ DA SILVA
Keyword(s):  
New Species ◽  
Species Identification ◽  
Type Species ◽  
Accessory Piece ◽  
Molecular Data ◽  
Fish Host ◽  
Rrna Gene ◽  
28S Rrna ◽  
South American ◽  
Unique Shape

Heteropriapulus Kritsky, 2007 (Monogenea: Dactylogyridae), which originally included only two species from the gills of loricariid catfishes, is reviewed and six newly described species from loricariids in the Paraná River basin in Brazil are added. Diagnosis of the genus is amended and a key to the species identification is provided. Heteropriapulus anchoradiatus n. sp. from Pterygoplichthys ambrosettii (Holmberg) (Hypostominae) differs from its congeners by having a long sclerotized vagina, ventral anchors with short shaft and conspicuous superficial root, and a conspicuous and robust postero-medial process on the dorsal bar; H. bitomus n. sp. from the same fish host differs by the presence of two pairs of sclerotized patches associated with the ventral anchors; H. falxus n. sp. from Hypostomus strigaticeps (Regan) (Hypostominae) and Hypostomus ancistroides (Ihering) (Hypostominae) is unique by the shape of the accessory piece composed of two strongly sclerotized subunits; H. microcleithrus n. sp. from P. ambrosettii differs by presenting the smallest length of the dorsal bar and unique shape of the longer subunit of the accessory piece resembling the ‘hammer and sickle’ shape; H. pterygoplichthyi n. sp. from the same host presents unique shape of the longer subunit of the accessory piece of the cirrus, which is represented by ‘two sickles’ jointed by the base; and H. semitortus n. sp. from Rhinelepis aspera Spix & Agassiz (Rhinelepinae) can be distinguished by the accessory piece composed of a single straight unit and a cirrus tube with the highest number of spiral rings at the proximal end (2½). First molecular data for this genus (partial sequences of the 28S rRNA gene) are provided including the type species H. heterotylus (Jogunoori, Kritsky & Venkatanarasaiah, 2004).  

Rhodocybe formosa (Agaricales, Entolomataceae): new collections, molecular data and synonymy, and Rhodocybe griseonigrella comb. nov.

Phytotaxa ◽  
2016 ◽  
Vol 255 (1) ◽  
pp. 34 ◽  
Author(s):  
ALFREDO VIZZINI ◽  
BERNARDO PICILLO ◽  
ENRICO ERCOLE ◽  
JORDI VILA ◽  
MARCO CONTU
Keyword(s):  
Phylogenetic Analysis ◽  
Distinct Species ◽  
Molecular Data ◽  
Its Sequences ◽  
European Species ◽  
Molecular Comparison

Rhodocybe formosa (sect. Rhodocybe), a species so far known only from Spain, is here reported from Italy. A detailed description, including also macrophotographs, microphotographs and drawings together with a phylogenetic analysis of the ITS sequences, are provided.                According to the molecular comparison of the type collections, R. minutispora, a species recently described on the basis of collections from Spain, is a synonym of R. formosa. Clitopilus griseonigrellus is recognized as a distinct species and recombined in Rhodocybe. A key to the European species of Rhodocybe sect. Rhodocybe is provided.

No longer shipwrecked—Selkirkia (Boraginaceae) back on the mainland with generic rearrangements in South American “Omphalodes” based on molecular data

Phytotaxa ◽  
2016 ◽  
Vol 270 (4) ◽  
pp. 231 ◽  
Author(s):  
NORBERT HOLSTEIN ◽  
JULIANA CHACÓN ◽  
HARTMUT H. HILGER ◽  
MAXIMILIAN WEIGEND
Keyword(s):  
Type Species ◽  
Molecular Data ◽  
Taxon Sampling ◽  
South American ◽  
South American Species ◽  
European Species ◽  
The North ◽  
Genus 2 ◽  
Eurasian Species ◽  
Group 1

The genus Omphalodes (Boraginaceae) has recently been shown to be polyphyletic. Two distantly related lineages have already been segregated into the genera Memoremea (Central Europe) and Nihon (East Asia), respectively. We expanded the taxon sampling in the Omphalodeae and confirm that the genus is still paraphyletic to the two monotypic genera Selkirkia from the Juan Fernández Islands off the coast of Chile and Myosotidium from Chatham Island off the coast of New Zealand, plus two South American species currently assigned to Cynoglossum, and one species recently segregated from the latter genus as Mapuchea. Four clades are retrieved in a narrowly delimited Omphalodes group: 1) Iberodes, the annual southwestern European species of Omphalodes s.l. that have been recently segregated into this genus, 2) Omphalodes s.str., perennial western Eurasian species (including the type species of the genus), 3) the North American species of Omphalodes, and 4) the southern hemispheric Myosotidium as sister to a monophyletic group with Mapuchea plus the two other South American species of “Cynoglossum” and the island shrub Selkirkia berteroi. We argue that the taxa of this latter clade are best placed into an expanded genus Selkirkia. Selkirkia then represents a morphologically coherent entity with glochidiate nutlets. Its considerable difference in vegetative morphology to Myosotidium is easily explained by the highly divergent habitats the respective plants occupy. Lectotypifications, illustrations, and descriptions are provided for Myosotidium and the species of the expanded genus Selkirkia.

A new riparian Mantidactylus (Brygoomantis) frog from the Tsaratanana and Manongarivo Massifs in northern Madagascar

Zootaxa ◽  
2018 ◽  
Vol 4486 (4) ◽  
pp. 575 ◽  
Author(s):  
MIGUEL VENCES ◽  
ANDREA HILDENBRAND ◽  
KATHARINA M. WARMUTH ◽  
FRANCO ANDREONE ◽  
FRANK GLAW
Keyword(s):  
New Species ◽  
Nuclear Dna ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Molecular Data ◽  
Test Case ◽  
Nominal Species ◽  
Type Specimens ◽  
The Status ◽  
Morphological Differences

The subgenus Brygoomantis in the Madagascar-endemic genus Mantidactylus contains 12 nominal species but is in urgent need of taxonomic revision as many additional, genetically divergent but undescribed candidate species have been identified. We here take a first step towards a better resolution of this group by describing a new species, Mantidactylus schulzi sp. nov., occurring at the Tsaratanana and Manongarivo Massifs, differentiated in genetic, bioacoustic and sometimes morphological characters from its closest relatives. We show that upon detailed study, most species in Brygoomantis can be delimited by concordant differentiation of mitochondrial and nuclear DNA, and by bioacoustic and morphological differences. We flag this group of morphologically similar frogs as a test case where molecular data on historical type specimens by ancient DNA methods might be needed to reach a satisfying clarification of taxonomy and nomenclature. However, the status of the new species M. schulzi is not in doubt as it is morphologically distinct from most historical type specimens, and microendemic to a region in northern Madagascar from where no earlier names exist. 

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