scholarly journals Variación en la captura de machos de Neoleucinodes elegantalis Guenée (Lepidoptera: Crambidae) usando feromonas sexuales comerciales en tres hospederos solanáceos

2017 ◽  
Vol 18 (3) ◽  
pp. 583-597 ◽  
Author(s):  
Ana Elizabeth Díaz-Montilla ◽  
Harold Suárez-Barón ◽  
Gerardo Gallego-Sánchez ◽  
William Fernando Viera-Arroyo ◽  
Clara Inés Saldamando-Benjumea
Keyword(s):  
Sex Pheromone ◽  
Mitochondrial Gene ◽  
Geographic Location ◽  
The Other ◽  
Female Genitalia ◽  
Solanum Lycopersicum L ◽  
Pheromone Composition ◽  
Wing Morphometrics ◽  
Solanaceae Family ◽  
Number Of Males

Neoleucinodes elegantalis Guenée (Lepidoptera: Crambidae) represents the most damaging pest of the Solanaceae family. Current studies have demonstrated that the species has differentiated into four races according to variations in female genitalia, wing morphometrics and sequencing of the cytochrome Oxydase (CO1) mitochondrial gene. The number of males captured in Colombia and Ecuador were registered using traps baited with two sex pheromone: Neolegantol ® and P228. These pheromones were synthesized using natural female pheromones collected in Solanum lycopersicum L. plantations in Venezuela. In Colombia, the number of male catches was significantly higher for Neolegantol ® than for P228 and this number was significantly higher on S. lycopersicum followed by S. quitoense and S. betaceum. The haplotype net obtained with the CO1 gene produced two main clusters: one cluster was comprised by specimens from S. lycopersicum and S. quitoense plants (both with medium sized female genitalia) and the other cluster by specimens from S. betaceum (large sized genitalia). The Neolegantol® pheromone was also tested in Ecuador, however, insignificant number of males were attracted. Results suggest that pheromone composition or concentration, host biotypes and geographic location are relevant to monitor populations of N. elegantalis. Further studies of the species should concentrate on establishing the pheromone composition and concentration among the four biotypes.

Treatment of inflammatory diseases of the female genitalia with iontophoresis

1927 ◽  
Vol 23 (4) ◽  
pp. 425-429
Author(s):  
N. S. Utochnikova
Keyword(s):  
Young Women ◽  
Surgical Intervention ◽  
Inflammatory Diseases ◽  
The Other ◽  
Female Genitalia ◽  
Physical Methods ◽  
Surgical Methods ◽  
The One ◽  
Methods Of Treatment ◽  
Female Genital

The treatment of inflammatory diseases of the female genitalia has long been one of the most important tasks of the gynecologist. With the development of surgery, surgical methods of treatment began to be applied: exudates were removed, the uterus and inflamed appendages were extirpated, etc.; but the danger of surgical intervention on the one hand, and on the other - the severe consequences of removal of organs such as ovaries, especially in young women - forced gynecologists to spend much effort in discovering and improving non-operative methods of treatment of inflammatory diseases of the female genital parts. Among these methods, physical methods such as water, mud, light baths, massage, etc., as well as those related to electricity have long been prominent.

Credibility in Sustainable Aquaculture Eco-Labeling

2019 ◽  
pp. 81-116
Author(s):  
Hamish van der Ven
Keyword(s):  
Best Practice ◽  
Geographic Location ◽  
Poor Performance ◽  
The Other ◽  
Process Tracing ◽  
Direct Result ◽  
Sustainable Aquaculture ◽  
Origin And Evolution ◽  
Domestic Markets ◽  
Comparative Case Studies

This chapter tests the aiming big hypothesis by tracing the origin and evolution of four eco-labeling organizations in sustainable aquaculture: the Aquaculture Stewardship Council (ASC), Best Aquaculture Practices (BAP), Friend of the Sea (FOS), and Naturland. The chapter argues that stronger adherence to best practices in the ASC and BAP programs is a direct result of their decision to target large multinational retailers for certification. Conversely, the comparatively poor performance of the other two eco-labeling organizations can be traced to their decisions to target smaller firms in domestic markets. The chapter uses comparative case studies and within-case process tracing to reveal how decisions about who to target for certification impacted best practice adherence through the causal mechanisms outlined in chapter 3. The four cases analyzed in this chapter cast further doubt on alternate theories of credibility, such as the relevance of ownership or geographic location to credibility.

scholarly journals A new species of Tetragonopterus Cuvier, 1816 (Characiformes: Characidae: Tetragonopterinae) from the rio Jari, Amapá, northern Brazil

2011 ◽  
Vol 9 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Bruno F Melo ◽  
Ricardo C Benine ◽  
Tatiane C Mariguela ◽  
Claudio Oliveira
Keyword(s):  
New Species ◽  
Mitochondrial Gene ◽  
The Other ◽  
New Combination ◽  
Valid Species ◽  
Caudal Peduncle ◽  
C Subunit ◽  
Northern Brazil ◽  
Square Spot ◽  
A New Species

A new species of Tetragonopterus is described from the rio Jari, a tributary to the left margin of rio Amazonas, at the border between Amapá and Pará States, northern Brazil. It is morphologically diagnosed from the other species of the genus (T. argenteus, T. chalceus, and T. rarus new combination) by the lozenge-shaped spot on the caudal peduncle vs. rounded to square spot on the other species. Partial sequences of the mitochondrial gene Cytochrome Oxidase C subunit I, from representatives of all valid species of Tetragonopterus, including this new species, were analyzed. The obtained results revealed a significant genetic distance between the new species and its congeners. A discussion on the new combination, Tetragonopterus rarus, is also provided.

scholarly journals Comparative Analysis of MODIS, MISR and AERONET Climatology over the Middle East and North Africa

2018 ◽  
Author(s):  
Ashraf Farahat
Keyword(s):  
Time Series ◽  
Comparative Analysis ◽  
Middle East ◽  
Biomass Burning ◽  
North Africa ◽  
Geographic Location ◽  
The Other ◽  
Positive Trend ◽  
Data Sampling ◽  
High Dust

Abstract. Comparative analysis of MISR MODIS, and AERONET AOD products performed over seven AERONET stations located in the Middle East and North Africa for the period of 2000–2015. Sites are categorized into dust, biomass burning and mixed. MISR and MODIS AODs agree during high dust seasons but MODIS tends to underestimate AODs during low dust seasons. Over dust dominating sites, MODIS/Terra AOD indicate a negative trend over the time series, while MODIS/Aqua, MISR, and AERONET depict a positive trend. A deviation between MODIS/Aqua and MODIS/Terra was observed regardless of the geographic location and data sampling. The performance of MODIS is similar over all region with ~ 68 % of AODs within the Δτ = ±0.05 ± 0.15τAERO confidence range. MISR AOD retrievals fall within 72 % of the same confidence range for all sites examined here. Both MISR and MODIS capture aerosol climatology; however few cases were observed where one of the two sensors better captures the climatology over a certain location or AOD range than the other sensor.

scholarly journals Migration of Sogatella furcifera between the Greater Mekong Subregion and northern China revealed by mtDNA and SNP

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Nan Yang ◽  
Zhaoke Dong ◽  
Aidong Chen ◽  
Yanqiong Yin ◽  
Xiangyong Li ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Mitochondrial Gene ◽  
Geographic Location ◽  
Northern China ◽  
Snp Markers ◽  
Shandong Province ◽  
Migration Route ◽  
Sogatella Furcifera ◽  
Low Genetic Diversity ◽  
Greater Mekong Subregion

Abstract Background The white-backed planthopper (WBPH), Sogatella furcifera (Horváth) (Hemiptera, Delphacidae), is a migratory pest of rice in Asia. Shandong Province, in northern China, is located on the migration pathway of WBPH between southern and northeast China. The potential sources of WBPH in northern China are poorly understood. We studied the sources of WBPH in Shandong Province by determining the population genetic structure of WBPH in 18 sites distributed in Shandong and in six regions of the Greater Mekong Subregion (GMS). We used mitochondrial gene and single-nucleotide polymorphism (SNP) markers for analysis. Results All of the WBPH populations studied in the seven regions had low genetic diversity. Pairwise FST values based on mtDNA ranged from − 0.061 to 0.285, while FST based on SNP data ranged from − 0.007 to 0.009. These two molecular markers revealed that 4.40% (mtDNA) and 0.19% (SNP) genetic variation could be explained by the interpopulation variation, while the rest came from intrapopulation variation. The populations in the seven geographic regions comprised four hypothetical genetic clusters (K = 4) not associated with geographic location. Eighty-four of 129 individuals distributed across the given area were designated as recent migrants or of admixed ancestry. Although the substantial migration presented, a weak but significant correlation between genetic and geographic distances was found (r = 0.083, P = 0.004). Conclusion The Greater Mekong Subregion was the main genetic source of WBPH in Shandong, while other source populations may also exist. The genetic structure of WBPH is shaped by both migration and geographic barriers. These results help clarify the migration route and the source of WBPH in northern China.

European bumblebees (Hymenoptera: Bombini)- phylogenetic relationships inferred from DNA sequences

2002 ◽  
Vol 33 (4) ◽  
pp. 361-386 ◽  
Author(s):  
Vest Pedersen
Keyword(s):  
Maximum Likelihood ◽  
Dna Sequences ◽  
Phylogenetic Trees ◽  
Phylogenetic Analyses ◽  
Mitochondrial Gene ◽  
Elongation Factor ◽  
Nuclear Gene ◽  
The Other ◽  
Elongation Factor 1Α ◽  
Nucleotide Bias

AbstractThe phylogenetics of 40 taxa of European bumblebees were analysed based on PCR amplified and direct sequenced DNA from one region of the mitochondrial gene Cytochrome Oxidase I (1046 bp) and for 26 taxa from two regions in the nuclear gene Elongation Factor 1α (1056 bp). The sequences were aligned to the corresponding sequences in the honey bee. Phylogenetic analyses based on parsimony, as well as maximum likelihood, indicate that the bumblebees can be separated into several well-supported clades. Most of the terminal clades correspond very well with the clades known from former phylogenetic analyses based on morphology and recognized as the subgenera: Mendacibombus, Confusibombus, Psithyrus, Thoracobombus, Megabombus, Rhodobombus, Kallobombus, Alpinobombus, Subterraneobombus, Alpigenobombus, Pyrobombus, Bombus and Melanobombus. All the cuckoo bumblebees form a well-supported clade, the subgenus Psithyrus, within the true bumblebees. All the analyses place Kallobombus as the most basal taxon in contradiction to former analyses. The other deeper nodes of the phylogenetic trees, which are weakly supported, deviate significantly from former published trees - especially the trees based on mtCO-I. Presumably, the reasons are that multiple hits and the strong bias of the bases A and T blur the relationships in the deepest part of the trees. Analyses of the region in mtCO-I show a very strong A+T bias (A+T= 75%), which also indicate preferences in the use of codons with A or T in third positions. In closely related entities, there is only a weak transversion bias (A+T). In the studied regions in EF 1-α, no nucleotide bias is observed. The observed differences in bases between the investigated taxa are relatively small and the gene is too conserved to solve all the questions that the analyses of the deeper nodes using mtCO-I raise.

Sex pheromone composition of the variegated cutworm, Peridroma saucia (Lepidoptera: Noctuidae), in Korea

2009 ◽  
Vol 12 (2) ◽  
pp. 71-77 ◽  
Author(s):  
Kyung San Choi ◽  
Jum Rae Cho ◽  
Jeong Heub Song ◽  
Dong-Soon Kim ◽  
Kyung Saeng Boo
Keyword(s):  
Sex Pheromone ◽  
Peridroma Saucia ◽  
Pheromone Composition ◽  
Variegated Cutworm ◽  
Lepidoptera Noctuidae

Social Identification versus Regionalism in Contemporary Ukraine

2005 ◽  
Vol 33 (3) ◽  
pp. 345-368 ◽  
Author(s):  
Oksana Malanchuk
Keyword(s):  
Ethnic Differences ◽  
Regional Differences ◽  
Geographic Location ◽  
Demographic Characteristics ◽  
Social Identification ◽  
The Other ◽  
Demographic Differences ◽  
Local Populations ◽  
Spheres Of Influence ◽  
Political Economic

Because of the historic separation of western and eastern Ukraine under Polish and Russian spheres of influence, respectively, regional subpopulations have been seen as an important factor in Ukrainian politics. Arel and Wilson argue that the division on the all-important “Russian question” in Ukraine (relations with Russia and with the Russian-speaking minority) is increasingly regional: east and south versus the center and west. Hesli calculated the level of russification and industrialization in the various regions of Ukraine and concluded that both, together with geographic location, although interrelated, have their own bearing on variation in public opinion. Markus, however, has argued that despite economic, political and ethnic differences among Ukraine's regions, these differences pose less of a threat to reform than has sometimes been suggested. She further points out that speculation that the Donbass wants to unite with Russia “stems more from Russian claims to the area than from genuine indigenous sentiment.” Miller and colleagues, on the other hand, dispute the notion of regional differences independent of the socio-demographic characteristics of the local populations, challenging the conventional wisdom that there are regional political cultures that supersede any underlying demographic differences. They argue that national, political, economic and class identities represent the important cleavages in post-communist societies. The regional divide in Ukraine is thus not a foregone conclusion but a factor that bears closer examination.

Sign in / Sign up

Export Citation Format

Share Document