On taxonomic status of two species of orchids (Orchidaceae) from Turkmenistan

Turczaninowia ◽  
2020 ◽  
Vol 23 (4) ◽  
pp. 65-71
Author(s):  
Alexander V. Fateryga ◽  
Alexander V. Pavlenko ◽  
Valentina V. Fateryga
Keyword(s):  
Species Richness ◽  
Taxonomic Status ◽  
As Species

The orchid genera Epipactis Zinn and Ophrys L. are well-known by their complicated taxonomy and extensive debates over species richness within them. These genera are represented in Turkmenistan by two species each. Two of them, namely E. turcomanica K. P. Popov et Neshat. and O. kopetdagensis K. P. Popov et Neshat., were hitherto accepted as species endemic to Turkmenistan. In the present paper, these taxa are synonymized with broadly distributed E. persica (Soó) Hausskn. ex Nannf. and O. oestrifera M. Bieb., respectively. Thus, the genus Epipactis is represented in Turkmenistan by E. persica and E. veratrifolia Boiss. et Hohen., and the genus Ophrys is represented by O. mammosa Desf. and O. oestrifera. There are no species of orchids endemic to Turkmenistan.

scholarly journals Reclassification of Bacteriovorax marinus as Halobacteriovorax marinus gen. nov., comb. nov. and Bacteriovorax litoralis as Halobacteriovorax litoralis comb. nov.; description of Halobacteriovoraceae fam. nov. in the class Deltaproteobacteria

2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 593-597 ◽  
Author(s):  
Susan F. Koval ◽  
Henry N. Williams ◽  
O. Colin Stine
Keyword(s):  
Type Strain ◽  
Type Species ◽  
Taxonomic Status ◽  
Strain Atcc ◽  
Content Type ◽  
Link Type ◽  
As Species ◽  
Previous Proposal

The taxonomic status of saltwater Bdellovibrio -like prokaryotic predators has been revised to assign species to Halobacteriovorax gen. nov. A reclassification of Bacteriovorax marinus as Halobacteriovorax marinus comb. nov. (type strain ATCC BAA-682T = DSM 15412T) and Bacteriovorax litoralis as Halobacteriovorax litoralis comb. nov. (type strain ATCC BAA-684T = DSM 15409T) is proposed. This revision is necessary because a previous proposal to retain saltwater isolates as species of Bacteriovorax and reclassify Bacteriovorax stolpii as Bacteriolyticum stolpii was not approved. The type species of a genus cannot be reassigned to another genus. Bacteriovorax stolpii is thus retained as the type species of Bacteriovorax and Halobacteriovorax marinus is the type species of Halobacteriovorax and of Halobacteriovoraceae fam. nov.

How does the taxonomic status of allopatric populations influence species richness within African cichlid fish assemblages?

2003 ◽  
Vol 31 (1) ◽  
pp. 93-102 ◽  
Author(s):  
Martin J. Genner ◽  
Ole Seehausen ◽  
Daniel F.R. Cleary ◽  
Mairi E. Knight ◽  
Ellinor Michel ◽  
...  
Keyword(s):  
Species Richness ◽  
Fish Assemblages ◽  
Cichlid Fish ◽  
Taxonomic Status ◽  
African Cichlid ◽  
Allopatric Populations

scholarly journals Integrative taxonomy confirms the species status of the Himalayan langurs, Semnopithecus schistaceus Hodgson 1840

2019 ◽  
Author(s):  
Kunal Arekar ◽  
S. Sathyakumar ◽  
K. Praveen Karanth
Keyword(s):  
Taxonomic Status ◽  
Single Species ◽  
Distinct Species ◽  
Morphological Characters ◽  
Integrative Taxonomy ◽  
Multiple Sources ◽  
Species Status ◽  
Species Identity ◽  
Hanuman Langur ◽  
As Species

AbstractTaxonomy is replete with groups where the species identity and classification remain unresolved. One such group is the widely distributed Hanuman langur (Colobinae: Semnopithecus). For most part of the last century, Hanuman langur was considered to be a single species with multiple subspecies. Nevertheless, recent studies using an integrative taxonomy approach suggested that this taxon is a complex, with at least three species. However, these studies did not include the Himalayan population of the Hanuman langur whose taxonomic status remains unresolved. The Himalayan population of Hanuman langurs have been classified as a distinct species with multiple subspecies or have been subsumed into other species. These classification schemes are wholly based on morphological characters and which are sometimes insufficient to delimit different species. Here, we have integrated data from multiple sources viz. morphology, DNA, and ecology to resolve the taxonomy of the Himalayan langur and to understand its distribution limit. Our results with three lines of evidence corresponding to three different species concepts show that Himalayan langur is a distinct species from S. entellus of the plains. Additionally, these results did not show any support for splitting of the Himalayan langur into multiple subspecies. Our study supports the classification proposed by Hill (1939) and we recommend Semnopithecus schistaceus, Hodgson 1840 as species name for the Himalayan langur and subsume all the known subspecies into it.

scholarly journals A taxonomic revision of taxa in Styrax series Cyrta (Styracaceae) with valvate corollas

2018 ◽  
Vol 12 (2) ◽  
pp. 579-641
Author(s):  
Gary Li ◽  
Peter W. Fritsch
Keyword(s):  
Southern China ◽  
Taxonomic Status ◽  
Taxonomic Revision ◽  
The Philippines ◽  
Undescribed Species ◽  
Eastern India ◽  
Distribution Maps ◽  
As Species ◽  
Conservation Assessments ◽  
Conservation Concern

Several taxonomic treatments of Styrax (Styracaceae) exist in regional floras of Asia, but the Asian species of the genus have not been comprehensively revised since 1907. A treatment of the Asian taxa of S. series Cyrta with imbricate floral aestivation was accomplished in 2003. To complete the taxonomic revision of S. series Cyrta, we conducted a taxonomic revision of the species of the series with valvate aestivation of the corolla lobes. Our revision comprises 11 species with a combined distribution from eastern India through southern China and Malesia, Melanesia, and Micronesia, although the group is absent from the Philippines. We resurrected S. bracteolatus, S. rubifolius, and S. warburgii as species to be recognized, and we corrected the misapplication of S. finlaysonianus, previously used for a species in S. series Benzoin. Styrax finlaysonianus and S. warburgii are segregated from the broader concept of S. agrestis recognized in prior treatments. The circumscriptions of the heretofore poorly delimited species S. confusus, S. faberi, and S. fortunei are clarified and their possible introgressants discussed. We observed unique combinations of characters in some problematic specimens whose taxonomic status remains unresolved because only single specimens with either flowers or fruits were available; at least some of these may represent undescribed species. Lectotypes are designated for Cyrta agrestis, S. argyi, S. bracteolatus, S. calvescens, S. casearifolius, S. confusus var. microphyllus, S. dasyanthus, S. dasyanthus var. cinerascens, S. faberi, S. finlaysonianus, S. formosanus, S. fortunei, S. fukienensis, S. henryi, S. henryi var. microcalyx, S. iopilinus, S. philadelphoides, S. rostratus, S. rubifolius, S. serrulatus var. agrestis, and S. virgatus. A neotype is designated for S. warburgii. Keys, descriptions, distribution maps, and conservation assessments are provided for all species. Styrax agrestis, S. bracteolatus, and S. rubifolius are rare endemics of conservation concern, with highly restricted distributions. 

scholarly journals Genomic-based taxonomic classification of the family Erythrobacteraceae

2020 ◽  
Vol 70 (8) ◽  
pp. 4470-4495 ◽  
Author(s):  
Lin Xu ◽  
Cong Sun ◽  
Chen Fang ◽  
Aharon Oren ◽  
Xue-Wei Xu
Keyword(s):  
Taxonomic Status ◽  
Single Copy ◽  
Amino Acid Identity ◽  
Evolutionary Distance ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
As Species ◽  
Gene Sequence Analysis ◽  
The Family

The family Erythrobacteraceae , belonging to the order Sphingomonadales , class Alphaproteobacteria , is globally distributed in various environments. Currently, this family consist of seven genera: Altererythrobacter , Croceibacterium , Croceicoccus , Erythrobacter , Erythromicrobium , Porphyrobacter and Qipengyuania . As more species are identified, the taxonomic status of the family Erythrobacteraceae should be revised at the genomic level because of its polyphyletic nature evident from 16S rRNA gene sequence analysis. Phylogenomic reconstruction based on 288 single-copy orthologous clusters led to the identification of three separate clades. Pairwise comparisons of average nucleotide identity, average amino acid identity (AAI), percentage of conserved protein and evolutionary distance indicated that AAI and evolutionary distance had the highest correlation. Thresholds for genera boundaries were proposed as 70 % and 0.4 for AAI and evolutionary distance, respectively. Based on the phylo-genomic and genomic similarity analysis, the three clades were classified into 16 genera, including 11 novel ones, for which the names Alteraurantiacibacter, Altericroceibacterium, Alteriqipengyuania, Alteripontixanthobacter, Aurantiacibacter, Paraurantiacibacter, Parerythrobacter, Parapontixanthobacter, Pelagerythrobacter, Tsuneonella and Pontixanthobacter are proposed. We reclassified all species of Erythromicrobium and Porphyrobacter as species of Erythrobacter . This study is the first genomic-based study of the family Erythrobacteraceae , and will contribute to further insights into the evolution of this family.

scholarly journals Microbial Diversity Based on Multifractal Analysis of Metagenomes

2021 ◽  
Author(s):  
Xianhua Xie ◽  
Yuanlin Ma ◽  
Zuguo Yu ◽  
Guosheng Han
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Multifractal Analysis ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Diversity Indices ◽  
Age Difference ◽  
Chaos Game Representation ◽  
As Species ◽  
Species Diversity Indices

Species diversity in microbiome is a cutting-edge concept in metagenomic research. In this study, we propose a multifractal analysis for metagenomic research. From the chaos game representation (CGR) visualization of simulated and real metagenomes, we find that there exists self-similarity in the visualization of metagenomes. Then we compute the multifractal dimensions for simulated and real metagenomes. For simulated metagenomes, we also compute their diversity indices, such as species richness indices, Shannon’s diversity indices and Simpson’s diversity indices respectively for varying value of . Fom the Pearson correlation coefficients between their multifractal dimensions and traditional species diversity indices, we find that the correlation coefficients between the multifractal dimensions and species richness indices and Shannon diversity indices reach their maximums at respectively. The correlation coefficients between the multifractal dimensions and Simpson’s diversity indices reach their maximums at nearly. So the traditional diversity indices can be unified by the frame of multifractal analysis. These results coincided with the similar results in macrobial ecology. Finally, we apply our methods to real metagenomes of 100 infants’ gut microbiomes when they are newborn, 4 months and 12 months. Our results show that multifractal dimensions of infants’ gut microbiomes can discriminate the age difference.

scholarly journals Malacofaunal inventory in Chintamoni Kar Bird Sanctuary, West Bengal, India

2021 ◽  
Vol 13 (2) ◽  
pp. 17807-17826
Author(s):  
S.K. Sajan ◽  
Swati Das ◽  
Basudev Tripathy ◽  
Tulika Biswas
Keyword(s):  
Species Richness ◽  
Protected Areas ◽  
West Bengal ◽  
Land Snails ◽  
Faunal Composition ◽  
Marine Molluscs ◽  
As Species ◽  
The Family ◽  
Conservation Plan ◽  
First Time

The knowledge on the floral and faunal composition of protected areas (PAs) is crucial for formulating suitable conservation plan.  In this paper, inventory and species richness of non-marine molluscs of Chintamoni Kar Bird Sanctuary has been made and is for the first time from any PA of West Bengal.  A total of 276 specimens belonging to 22 species (10 species of land snails and 12 species of freshwater) of non-marine molluscs (land and freshwater) were collected and examined from this sanctuary.  The malacofaunal inventory comprises of nine genera under seven families among land snails and 12 genera & seven families from both gastropods & bivalves under the freshwater forms.  As far as species richness is concerned, the family Ariophantidae was found to be dominant among land forms whereas species of the families Thiaridae and Unionidae were dominant among freshwater forms.

scholarly journals Saturating effects of species diversity on life-history evolution in bacteria

2015 ◽  
Vol 282 (1815) ◽  
pp. 20151794 ◽  
Author(s):  
Francesca Fiegna ◽  
Thomas Scheuerl ◽  
Alejandra Moreno-Letelier ◽  
Thomas Bell ◽  
Timothy G. Barraclough
Keyword(s):  
Life History ◽  
Species Richness ◽  
Species Interactions ◽  
Evolutionary Dynamics ◽  
Life History Evolution ◽  
Relative Strength ◽  
Recent Theory ◽  
Mechanistic Models ◽  
As Species ◽  
Diverse Communities

Species interactions can play a major role in shaping evolution in new environments. In theory, species interactions can either stimulate evolution by promoting coevolution or inhibit evolution by constraining ecological opportunity. The relative strength of these effects should vary as species richness increases, and yet there has been little evidence for evolution of component species in communities. We evolved bacterial microcosms containing between 1 and 12 species in three different environments. Growth rates and yields of isolates that evolved in communities were lower than those that evolved in monocultures, consistent with recent theory that competition constrains species to specialize on narrower sets of resources. This effect saturated or reversed at higher levels of richness, consistent with theory that directional effects of species interactions should weaken in more diverse communities. Species varied considerably, however, in their responses to both environment and richness levels. Mechanistic models and experiments are now needed to understand and predict joint evolutionary dynamics of species in diverse communities.

An annotated world catalogue of the millipede order Callipodida (Arthropoda: Diplopoda)

Zootaxa ◽  
2008 ◽  
Vol 1706 (1) ◽  
pp. 1 ◽  
Author(s):  
PAVEL STOEV ◽  
PETRA SIERWALD ◽  
AMBER BILLEY
Keyword(s):  
Taxonomic Status ◽  
Original Description ◽  
Nominal Species ◽  
Index Card ◽  
Species List ◽  
As Species ◽  
Species Inquirenda ◽  
On Line ◽  
First World ◽  
First Descriptions

The paper presents the first world catalogue of the millipede order Callipodida (Diplopoda: Helminthomorpha). The order is currently known to comprise 3 suborders, 7 families, 35 valid (sub-)genera and 133 (sub-)species. Furthermore, 10 nominal species, whose taxonomic status has not been considered in any publications other than the first descriptions, are listed as species inquirenda. The synonymy of Paracortina wangi Stoev, 2004 under Angulifemur unidigitis Zhang, 1997 is formalized here. Given for each (sub-)species are the original description with author, year, pages and figures; complete chronological list of subsequent faunistic or taxonomic references; type material and, if known, current repository; type locality; species range; and sometimes additional remarks on its status or distribution. The relevant taxonomic and faunistic literature on Diplopoda was consulted to complete the data presented here. The species list is based on a species index card catalogue housed in the Museum National d’Histoire Naturelle in Paris (“Fichier iconographiqueBrolemann et successeurs”), with additions from the Zoological Record and various on-line resources. A bibliography containing 286 taxonomic references relevant to the Callipodida is included.

scholarly journals The Story of the Tulip That Went Wild: Tracing the History of Introduction of Tulipa Sylvestris in Sixteenth-Century Europe

2021 ◽  
Author(s):  
Anastasia Stefanaki ◽  
Tilmann Walter ◽  
Tinde van Andel
Keyword(s):  
Sixteenth Century ◽  
Taxonomic Status ◽  
Northern Italy ◽  
Cultivated Plants ◽  
Northern Europe ◽  
Southern France ◽  
As Species ◽  
Botanical History ◽  
History Of ◽  
The Mediterranean

Abstract Tulipa sylvestris, commonly called the “wild tulip”, was introduced from the Mediterranean to northern Europe in the sixteenth century and became widely naturalized. Research has focused on tulips that came from the Orient, but the introduction path of this native European, early ornamental tulip is unclear, and so is its taxonomic status: three subspecies are provisionally accepted, sometimes treated as species. Here we elucidate the history of introduction of T. sylvestris and discuss its taxonomy based on our historical findings. The first bulbs came from Bologna (northern Italy) and Montpellier (southern France) in the 1550s-1570s. Several renown botanists were involved in their introduction, namely Gessner, Wieland, Aldrovandi, De Lobel, Clusius, and Dodoens. There were various introduction routes, including one from Spain which was apparently unsuccessful. The strong sixteenth-century Flemish botanical network facilitated the introduction and naturalization of T. sylvestris across Europe. Based on the latest tulip taxonomy, the diploid subspecies australis is native in the Mediterranean, and the tetraploid sylvestris is naturalized over Europe, but our historical findings show that both sylvestris and australis were introduced. This underlines the need to reconsider the taxonomic status of T. sylvestris, highlighting the importance of botanical history in understanding the complex taxonomy of naturalized cultivated plants.

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