scholarly journals Coleoptera diversity and abundance in Golcuk Natural Park, in Isparta, Turkey

2017 ◽  
Vol 18 ◽  
pp. 47 ◽  
Author(s):  
G. Japoshvili ◽  
M. Kaya ◽  
B. Aslan ◽  
I. Karaca
Keyword(s):  
Similarity Index ◽  
Apple Orchard ◽  
Natural Park ◽  
Coleoptera Diversity ◽  
Natural Plants ◽  
A Site ◽  
Main Entrance

Coleoptera diversity was investigated at Golcuk Natural Park, Isparta, Turkey. Thirty four families of Coleoptera were recorded during the survey. Coleopterans were most abundant in a site close to an old apple orchard where 33% of all sampled individuals were found. Less frequently recorded families were found in a site close to the main entrance and picnic area. Coleopteran families were found to be unequally partitioned in all six microhabitats. The highest similarity index (0.85) was found between sites close to the Park entrance and close to the old apple orchard. Distribution of the abundance of coleopteran families was significantly different between all studied habitats. The study revealed that the site close to the old apple orchard and sites with xerophilic natural plants provide special micro-habitats for Coleopteran fauna.

Morphological and molecular characterization of Gambierdiscus caribaeus (Dinophyceae), with a confirmation of its occurrence in the Colombian Caribbean Tayrona National Natural Park

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Edgar Arteaga-Sogamoso ◽  
Francisco Rodríguez ◽  
José Ernesto Mancera-Pineda
Keyword(s):  
Morphological Characteristics ◽  
Intraspecific Variability ◽  
Original Description ◽  
Single Strain ◽  
Natural Park ◽  
Fish Poisoning ◽  
Rdna Sequencing ◽  
Local Species ◽  
Western Side ◽  
A Site

Abstract Dinoflagellates in the genus Gambierdiscus are known to produce potent neurotoxins known as ciguatoxins. These toxins vector through the food web and can reach sufficiently high levels to cause ciguatera fish poisoning (CFP). In many regions of the Caribbean, little is known about the occurrence of CFP-causing species or the incidence of CFP, despite its apparent regional increase over the last few decades. Given the intraspecific variability in content and potencies of these toxins among Gambierdiscus species, the precise identification of local species of this genus is crucial. In this study we confirm the presence of the epibenthic dinoflagellate Gambierdiscus caribaeus in the Colombian continental Caribbean. Cells were collected in seagrass beds of Thalassia testudinum in Bonito Gordo, a site located on the western side of Bahía Concha, Tayrona National Natural Park, near the city of Santa Marta, Colombia. Subsequently, a single strain of Gambierdiscus could be established for further identification. Morphological (light and scanning electron microscopy), and molecular results (partial LSU and ITS rDNA sequencing) were consistent with the original description of G. caribaeus, as well as with the morphological characteristics shown by other authors in organisms obtained near the sampling area.

scholarly journals Blooming charge assessment in apple orchards for automatic thinning activities

2019 ◽  
Vol 70 (3) ◽  
pp. 171-180
Author(s):  
Gabriele Daglio ◽  
Raimondo Gallo ◽  
Fabrizio Mazzetto
Keyword(s):  
Optical Sensors ◽  
Automatic System ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Apple Orchard ◽  
Site Specific ◽  
Suitable Parameter ◽  
Thinning Operations ◽  
A Site ◽  
Flower Thinning

Summary This work aims to develop an automatic system capable of providing objective information about the bloom charge in an apple orchard in order to manage flower-thinning activities. The article presents and discusses the use of a mobile lab (ByeLab) equipped with several optical sensors to carry out a site-specific bloom charge assessment in apple trees. The data collected by the sensors were processed by a specific algorithm implemented in MatLab®. Investigations of the flower reflectance signature indicated that the Normalized Difference Vegetation Index (NDVI) is the most suitable parameter to distinguish leaves from flowers. Pure flowers produce NDVI values slightly negative or at least very near to 0. Despite the homogeneous behavior of the NDVI flower response, OptRx™ sensors, which provide an average assessment of an area, were not able to highlight a significant correlation between the number of flowers and the NDVI values. In the future, further studies will be conducted to assess if other techniques based on image analyses can provide better and more sensitive results regarding the bloom charge assessment. Such results could then be used as a reference in automating machines for thinning operations according to a site-specific approach.

scholarly journals Are bioassessments based on the Reference Condition Approach (RCA) affected by 'rapid' approaches to sample collection and processing?

2016 ◽  
Author(s):  
Amanda Valois ◽  
Keith Somers ◽  
Chantal Sarrazin-Delay ◽  
Bill Keller
Keyword(s):  
Data Collection ◽  
Community Composition ◽  
Benthic Invertebrates ◽  
Sampling Methods ◽  
Similarity Index ◽  
Reference Condition ◽  
Standard Approach ◽  
Sample Collection ◽  
Stream Health ◽  
A Site

<p>Benthic invertebrates are used by a number of agencies worldwide as indicators for assessing stream health, which has resulted in the development of a variety of protocols for collecting and processing benthic samples. The large number of methods used means that calibration of data collection is not always possible, but if different methods produce similar estimates of community composition and metric values, then sharing of data can make bioassessments more efficient. This study explored the effect of two approaches to subsampling and sorting of benthic invertebrates on community composition, calculation of metrics, and assessment of stream health. We compared two commonly used sampling methods: a rapid approach, employing live, unaided sorting and a standard approach using microscope sorting of preserved samples, through a comparison of replicate samples collected from 61 streams. This study found that both methods resulted in similar estimates of community composition at a site, as determined by the Bray-Curtis similarity index. However, the live sorting methodology resulted in greater family richness and higher estimates of metrics that reflect large taxa (<em>i.e</em>., %EPT). Despite differences in a number of metrics, both methods performed equally well at identifying impairment in the test sites, with live-sorting samples slightly more sensitive.</p>

Around the Broken Chair: Locationality, Visuality and the Vibrancy of Diplomatic Objects

2021 ◽  
Vol 16 (1) ◽  
pp. 120-132
Author(s):  
Costas M. Constantinou
Keyword(s):  
Social Life ◽  
Gift Giving ◽  
The Social ◽  
A Site ◽  
Main Entrance

Summary The Broken Chair, a colossal sculpture positioned in the Place de Nations outside the main entrance to the Palais de Nations — the UN Office at Geneva — provides a site and a micro-geography of diplomacy. This essay examines this transgressive gift to the UN, challenging customary norms of gift-giving, and its energetic use by liminal diplomatic subjects pursuing diverse causes. It explores the social life and agential competences of this diplomatic object, its ability to recontextualise ‘the square of nations’ and to affect and empower those connected to it. Overall, it surveys its vibrant materiality that supports alternative diplomatic presence and possibility.

Eels Under Standing Wave Conditions

1982 ◽  
Vol 40 ◽  
pp. 492-495
Author(s):  
O.L. Krivanek ◽  
J. TaftØ
Keyword(s):  
Standing Wave ◽  
Wave Conditions ◽  
Set Up ◽  
A Site ◽  
Complex Crystal

It is well known that a standing electron wavefield can be set up in a crystal such that its intensity peaks at the atomic sites or between the sites or in the case of more complex crystal, at one or another type of a site. The effect is usually referred to as channelling but this term is not entirely appropriate; by analogy with the more established particle channelling, electrons would have to be described as channelling either through the channels or through the channel walls, depending on the diffraction conditions.

Head Size and DNA Content in Bacteriophage T4

1972 ◽  
Vol 30 ◽  
pp. 200-201
Author(s):  
Fred Eiserling ◽  
A. H. Doermann ◽  
Linde Boehner
Keyword(s):  
Electron Microscopy ◽  
Dna Content ◽  
Bacteriophage T4 ◽  
Head Size ◽  
Virus Particles ◽  
Altered Protein ◽  
A Cell ◽  
Bacterial Viruses ◽  
A Site ◽  
Protein Shell

The control of form or shape inheritance can be approached by studying the morphogenesis of bacterial viruses. Shape variants of bacteriophage T4 with altered protein shell (capsid) size and nucleic acid (DNA) content have been found by electron microscopy, and a mutant (E920g in gene 66) controlling head size has been described. This mutant produces short-headed particles which contain 2/3 the normal DNA content and which are non-viable when only one particle infects a cell (Fig. 1).We report here the isolation of a new mutant (191c) which also appears to be in gene 66 but at a site distinct from E920g. The most striking phenotype of the mutant is the production of about 10% of the phage yield as “giant” virus particles, from 3 to 8 times longer than normal phage (Fig. 2).

A Test of Three Sadism Measures

2020 ◽  
Vol 41 (4) ◽  
pp. 219-227 ◽  
Author(s):  
Bojana M. Dinić ◽  
Tara Bulut Allred ◽  
Boban Petrović ◽  
Anja Wertag
Keyword(s):  
Item Response ◽  
Social Groups ◽  
Similarity Index ◽  
Dark Triad ◽  
Hierarchical Regression ◽  
Fit Indices ◽  
Profile Similarity ◽  
Positive Attitudes ◽  
Confirmatory Factor ◽  
Positive Correlations

Abstract. The aim of this study was to evaluate psychometric properties of three sadism scales: Short Sadistic Impulse Scale (SSIS), Varieties of Sadistic Tendencies (VAST, which measures direct and vicarious sadism), and Assessment of Sadistic Personality (ASP). Sample included 443 participants (50.1% men) from the general population. Reliability based on internal consistency of all scales was good, and results of Confirmatory Factor Analysis (CFA) showed that all three scales had acceptable fit indices for the proposed structure. Results of Item Response Theory (IRT) analysis showed that all three scales had higher measurement precision (information) in above-average scores. Validity of the scales was supported through moderate to high positive correlations with the Dark Triad traits, especially psychopathy, as well as positive correlations with aggressiveness and negative with Honesty-Humility. Moreover, results of hierarchical regression analysis showed that all three measures of direct, but not vicarious sadism, contributed significantly above and beyond other Dark Triad traits to the prediction of increased positive attitudes toward dangerous social groups. The profile similarity index showed that the SSIS and the ASP were highly overlapping, while vicarious sadism seems distinct from other sadism scales.

Exploration-Stage Implementation Variation

2014 ◽  
Vol 222 (1) ◽  
pp. 37-48 ◽  
Author(s):  
Stephanie Romney ◽  
Nathaniel Israel ◽  
Danijela Zlatevski
Keyword(s):  
Parent Training ◽  
Average Cost ◽  
Cost Savings ◽  
Training Group ◽  
Group Differences ◽  
Triple P ◽  
Community Based ◽  
Parent Training Program ◽  
A Site ◽  
The Cost

The present study examines the effect of agency-level implementation variation on the cost-effectiveness of an evidence-based parent training program (Positive Parenting Program: “Triple P”). Staff from six community-based agencies participated in a five-day training to prepare them to deliver a 12-week Triple P parent training group to caregivers. Prior to the training, administrators and staff from four of the agencies completed a site readiness process intended to prepare them for the implementation demands of successfully delivering the group, while the other two agencies did not complete the process. Following the delivery of each agency’s first Triple P group, the graduation rate and average cost per class graduate were calculated. The average cost-per-graduate was over seven times higher for the two agencies that had not completed the readiness process than for the four completing agencies ($7,811 vs. $1,052). The contrast in costs was due to high participant attrition in the Triple P groups delivered by the two agencies that did not complete the readiness process. The odds of Triple P participants graduating were 12.2 times greater for those in groups run by sites that had completed the readiness process. This differential attrition was not accounted for by between-group differences in participant characteristics at pretest. While the natural design of this study limits the ability to empirically test all alternative explanations, these findings indicate a striking cost savings for sites completing the readiness process and support the thoughtful application of readiness procedures in the early stages of an implementation initiative.

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