EFFECT OF ENVIRONMENT AND EQUIPMENT ON PRODUCTIVITY OF ALFALFA LEAFCUTTER BEES (HYMENOPTERA: MEGACHILIDAE) IN SOUTHERN ALBERTA, CANADA

1996 ◽  
Vol 128 (1) ◽  
pp. 47-56 ◽  
Author(s):  
K.W. Richards
Keyword(s):  
Environmental Variables ◽  
Total Cell ◽  
Significant Positive Effect ◽  
Megachile Rotundata ◽  
Southern Alberta ◽  
Temperature Heat ◽  
Leafcutter Bee ◽  
Nesting Material ◽  
Higher Temperature ◽  
Positive Effect

AbstractFour indicators of productivity and quality for the alfalfa leafcutter bee, Megachile rotundata (Fab.), were examined over a 3-year period and the influence of different shelter designs, nesting materials, and 34 environmental variables evaluated. A higher percentage of cocoons per total cells was produced in polystyrene nesting material than in pinewood nesting material. Both nesting materials had similar percentages of tunnels capped or containing cells and total numbers of cells per hive. Shelters with conspicuous orientation patterns or silhouettes had more tunnels capped per hive, tunnels with cells, and greater total cell production per hive than did other shelter designs. The time of maximum bee production varied greatly among the 3 years. Many environmental variables, especially those associated with higher temperature, heat units, and mean actual temperature, had a significant positive effect on bee productivity and cell quality. The information contained in this study may help delineate those climatic areas where this valuable alfalfa pollinator can be most effective, and may assist beekeepers in making management decisions that will improve their operations.

IMPACT OF DAMAGE BY THE DRIEDFRUIT MOTH, VITULA EDMANDSAE SERRATILINEELLA (LEPIDOPTERA: PYRALIDAE), A PEST OF THE ALFALFA LEAFCUTTER BEE, MEGACHILE ROTUNDATA (HYMENOPTERA: MEGACHILIDAE)

1983 ◽  
Vol 115 (12) ◽  
pp. 1549-1553 ◽  
Author(s):  
K. W. Richards
Keyword(s):  
Positive Relationship ◽  
Megachile Rotundata ◽  
Wood Material ◽  
Significant Positive Relationship ◽  
Leafcutter Bee ◽  
Lepidoptera Pyralidae ◽  
Nesting Material

AbstractLarvae of the driedfruit moth, Vitula edmandsae serratilineella Ragonot, enter uncapped tunnels in hives of the alfalfa leafcutter bee, Megachile rotundata F., and eat the pollen and nectar provisions of incomplete cells. Significantly more cocoons are destroyed in hives made of pine nesting material than in those made of polystyrene nesting material. However, significantly more tunnel walls are chewed into and through in the polystyrene than in the wood material. A significant positive relationship exists between the number of moth larvae per hive and the number of bee cells produced in that hive. After hives are removed from the field and placed in storage for the winter, most mature larvae leave the tunnels upon completion of feeding and aggregate in spaces between hives.

MANAGEMENT OF MEGACHILE ROTUNDATA IN NORTHWESTERN CANADA FOR POPULATION INCREASE

1974 ◽  
Vol 106 (9) ◽  
pp. 1003-1008 ◽  
Author(s):  
P. Pankiw ◽  
B. Siemens
Keyword(s):  
British Columbia ◽  
Population Increase ◽  
Megachile Rotundata ◽  
Directional Orientation ◽  
Northern Areas ◽  
Leafcutter Bee ◽  
New Material ◽  
Nesting Material

AbstractStudies on population increase of the alfalfa leafcutter bee (Megachile rotundata Fabr.) were conducted in northern areas of Alberta and British Columbia (lat. 55°N. to 58°30′N.). Polyethylene shelters with one side open, placed over the domiciles, raised domicile daytime temperatures by 4°–10 °C, increased the duration of activity and the pollinating range of the bees, and resulted in an increased number of cocoons. Population increase was 2–5 times greater when hives and shelters faced south than when they faced east or west. Within a shelter bees also preferred hives with southern exposure. Movement of domiciles in mid-season for distances of 150 m or more caused a reduction in bee populations. Bees preferred wood to polystrene nesting material, old to new material, and surface stained material with patterns to unstained material. Severe mould development in polystrene nesting material affected development of larvae and emergence of pupae. Since population increase of M. rotundata, by utilization of polyethylene shelters and by proper directional orientation, is successful, re-establishment of a major alfalfa industry in northwestern Canada is now possible.

QUANTIFICATION OF MANDIBULAR WEAR OF FEMALE ALFALFA LEAFCUTTER BEES, MEGACHILE ROTUNDATA (F.) (HYMENOPTERA: MEGACHILIDAE), BY IMAGE ANALYSIS

1993 ◽  
Vol 125 (1) ◽  
pp. 93-99 ◽  
Author(s):  
E.G. Kokko ◽  
B.D. Schaber ◽  
T. Entz
Keyword(s):  
Image Analysis ◽  
Digital Image Analysis ◽  
Megachile Rotundata ◽  
Wear Analysis ◽  
Southern Alberta ◽  
Before And After ◽  
Alfalfa Seed ◽  
Leafcutter Bee ◽  
Mandibular Teeth ◽  
Seed Yields

AbstractIn southern Alberta, alfalfa seed yields are related to the amount of pollination that occurs before mid-August by the major pollinator, the alfalfa leafcutter bee, Megachile rotundata (F.). Cutting the leaves causes wear to the bee’s mandibular teeth and could reduce the bee’s pollination efficiency and, ultimately, seed production. A method is described for employing digital image analysis to measure mandibular tooth areas for alfalfa leafcutter bees. The method is relatively quick and has high precision and repeatability. This method was used to measure the area of the mandibular teeth for leafcutter bees, before and after foraging in alfalfa seed fields, to evaluate differences in mandibular wear. Analysis of mandibles showed that foraging leafcutter bees collected in late July had significantly smaller tooth areas than pre-foraging bees collected prior to release in June.

Estimasi Pengaruh Faktor Internal Bank dan Stabilitas Makroekonomi terhadap Profitabilitas dengan Mediasi Rasio Pembiayaan Bermasalah di PT Bank Muamalat Indonesia

2020 ◽  
Vol 3 (2) ◽  
pp. 93-108
Author(s):  
Annisa Siti Fathonah ◽  
Dadang Hermawan
Keyword(s):  
Secondary Data ◽  
Financial Statements ◽  
Significant Positive Effect ◽  
Return On Assets ◽  
Internal Factors ◽  
Macroeconomic Factors ◽  
Operating Income ◽  
Significant Negative Effect ◽  
Negative Effect ◽  
Positive Effect

This study aims to determine and analyze how much influence the bank's internal factors such as Equity, Operational Costs per Operating Income (BOPO), Financing Deposit to Ratio (FDR), Non Performing Financing (NPF) as a mediator and external or macroeconomic factors namely inflation and Gross Domestic Product (GDP) on profitability represented by Return on Assets (ROA) at Bank Muamalat Indonesia for the period 2008-2018. The data used in this research are secondary data obtained from the publication of quarterly financial statements from 2008 to quarter 2 of 2018. The method that used in this research is path analysis with SPSS 20.0 as the analytical tool. The results of the study partially test the hypothesis (t-test), in substructure I shows that the capital variable has a significant negative effect on NPF, BOPO and inflation has a significant positive effect on NPF, FDR and GDP do not significantly influence NPF at Bank Muamalat Indonesia. In substructure II partially, Capital, BOPO, significant negative effect on ROA, FDR and NPF has a significant positive effect on ROA, Inflation and GDP does not significantly influence ROA while simultaneously significantly influencing ROA. Based on the sobel test, capital has a significant effect on ROA through NPF, BOPO has a significant effect on ROA through NPF, FDR has a significant effect on ROA through NPF, Inflation has a significant effect on ROA through NPF, while GDP has no significant effect on ROA through NPF.

Kredit Bermasalah sebagai Pemoderasi Pengaruh Tingkat Penyaluran Kredit terhadap Profitabilitas

2020 ◽  
Vol 5 (1) ◽  
pp. 52
Author(s):  
Sukirno Sukirno
Keyword(s):  
Research Method ◽  
Quantitative Research ◽  
Stock Exchange ◽  
Survey Methods ◽  
Analytical Tool ◽  
Significant Positive Effect ◽  
Purposive Sampling ◽  
The Relationship ◽  
Positive Effect

Abstract This study aims to empirically challenge the moderation of Non-Performing Loans to the effect of Credit Distribution Rates on Profitability. The population of 81 bank companies listed on the Indonesia Stock Exchange in the period 2014-2018 and which met the criteria of the research sample (purposive sampling) were 22 companies. The research method uses survey methods with quantitative research approaches, the analytical tool used is moderation regression. This study concludes that the level of credit distribution has a significant positive effect on profitability and the existence of the problem loan variable is proven to be a moderating variable that weakens the relationship between the level of credit distribution and profitability.    

Consumption Emotions and Consumer Values among Turkish Consumers during the COVID-19 Pandemic

2020 ◽  
Vol 8 (2) ◽  
pp. 135-160
Author(s):  
Nevin Karabiyik Yerden
Keyword(s):  
Questionnaire Survey ◽  
Sampling Method ◽  
Significant Positive Effect ◽  
Consumption Emotions ◽  
The World ◽  
Consumer Values ◽  
Convenience Sampling ◽  
Business Structures ◽  
Consumer Lifestyles ◽  
Positive Effect

The COVID 19 pandemic created economic havoc around the world. Along with healthcare challenges, the pandemic has also been changing consumer lifestyles. It affects business structures and service delivery too. This article draws on an investigation of the effect of consumption emotions of Turkish consumers on consumer values during the COVID 19 Pandemic. A convenience sampling method was adopted in the study and a questionnaire survey was administered to collect 390 consumer cases. The results show that the consumption emotions of Turkish consumers during the COVID 19 Pandemichad a significant positive effect on consumer values. It was found that Turkish consumers were to feel anxiety, calmness and hope more often than not during the pandemic.

Effect of Compensation and Work Environment on Employee Performance with Employee Job Satisfaction as an Intervening Variable

2018 ◽  
Vol 9 (03) ◽  
pp. 20553-20562
Author(s):  
Putu Ayu Diah Juliarti ◽  
Anak Agung Putu Agung ◽  
I Nengah Sudja
Keyword(s):  
Job Satisfaction ◽  
Work Environment ◽  
High Performance ◽  
Employee Performance ◽  
Statistical Tests ◽  
Path Coefficient ◽  
Significant Positive Effect ◽  
Organizational Goals ◽  
Record Keeping ◽  
Positive Effect

An employee who has a high performance and better able to support the achievement of the goals and objectives set by the company. Employees can work well if you have a high performance that can produce good work anyway. With the high- performance that employees, is expected to achieve organizational goals. This study examines the effect of compensation and work environment on employee performance with job satisfaction to be intervening variable. Data on compensation, work environment, job satisfaction, and employee performance obtained through observation, record keeping and questioner with respondents. The data obtained are then analyzed using Partial Least Squares (PLS). Statistical tests results showed  (1) the compensation proved significant positive effect on job satisfaction the path coefficient of 0.434 and T-Stats for 4.880, (2) work environment proved to be a significant positive effect on job satisfaction the path coefficient of 0.434 and T-Stats for 4.074, (3) job satisfaction proved to be a significant positive effect on employee performance the path coefficient of 0.264 and T-Stats for 2.458, (4) compensation proved positive and significant effect employee performance the path coefficient of 0.242 and T-Stats for 2.912, (5) work environment proved positive and significant effect employee performance the path coefficient of 0.378 and T-Stats for 3.343. Based on test results obtained statistical results of all variables positive and signicant impact.

Pengaruh desain produk dan harga terhadap minat beli konsumen mebel jati jepara pada Toko Usaha Baru Furniture di Lubuk Alung

2019 ◽  
Vol 8 (2) ◽  
Author(s):  
Sutiyem Sutiyem ◽  
Thesa Alif Ravelby ◽  
Dessy Trismiyanti
Keyword(s):  
Product Design ◽  
Significant Influence ◽  
Design Variable ◽  
Quantitative Research ◽  
Coefficient Of Determination ◽  
Purchase Decision ◽  
Significant Positive Effect ◽  
Consumer Interest ◽  
Spss Software ◽  
Positive Effect

This study aims to determine the effect of product design and price on consumer interest in buying Jepara Teak furniture at the New Furniture Business Shop in Lubuk Alung. This type of research is associative quantitative research, the number of research samples were 100 people. Data was collected in the form of questionnaires and using analyzed SPSS software ver.21.0 for Windows. The conclusions from this study is the product design variable (X1) has a significant positive effect on purchase decision in Jati Jepara furniture at the New Furniture Business Shop in Lubuk Alung, as evidenced by t value > t table (10,400> 1,660) and a significant influence between price variables ( X2) purchase decision with t value> t table (2,015> 1,660). There is a positive and significant influence between product design (X1) price (X2), on purchase decision of Jati Jepara furniture consumers with an F-value 156,644> F- table (3,09) means that it affects together. The coefficient of determination (R²) results obtained a coefficient of 0.764 or 76.4%, while 23.6% is influenced by other variables.Keywords: Product design; prices; purchase decision.

ANALISIS DETERMINASI PENGHAMBAT PELAPORAN AKUNTANSI SUMBER DAYA MANUSIA

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Amir Hamzah
Keyword(s):  
Human Resources ◽  
Human Resource ◽  
Variable Cost ◽  
Significant Positive Effect ◽  
Microfinance Institutions ◽  
Sample Number ◽  
Human Resource Accounting ◽  
Resource Accounting ◽  
Accounting Report ◽  
Positive Effect

This study aims to analyze the determination of inhibiting reporting of human resource accounting at Shariah microfinance institutions in Kuningan Regency, with the sample number of 70 respondents of shariah microfinance institutions.��������� This study used a qualitative descriptive research method and verification with interview or questionnaire technique. Research data were tested using instrument test, classical assumption test, multiple regression test.��������� The results showed partially variable cost of human resources have a significant positive effect on human resources accounting report, variable measurement of human resources value has a significant positive effect on the human resources accounting report and together show that the variable cost of human resources and measurement value human resources to the accounting reports of human resources.�Keywords: Human Resource Cost, Human Resource Measurement Value, Human Resource Accounting Report

Peranan Ketua Pengurus dan Manajer Dalam Penyusunan dan Penerapan Laporan Keuangan Berbasis SAK ETAP Pada Koperasi di Kota Palembang

2019 ◽  
Vol 14 (2) ◽  
pp. 119
Author(s):  
Riza Syahputera ◽  
Martha Rianty
Keyword(s):  
Data Analysis ◽  
Sampling Technique ◽  
Financial Statements ◽  
Significant Positive Effect ◽  
Analysis Technique ◽  
Regression Test ◽  
Using Data ◽  
The City ◽  
Positive Effect

AbstractThis study aims to determine the effect of the role of the Chairperson and Cooperative Manager in the preparation and application of Financial Statements based on SAK ETAP in cooperatives in the city of Palembang. This research is a quantitative study using data obtained from questionnaires and measured using a Likert scale. The sampling technique used is purposive sampling. The sample used in this study was the Chairperson of the cooperative and the manager of the cooperative in the city of Palembang. The cooperatives studied were 203 cooperatives. The data analysis technique used is multiple linear regression test. The results showed that the role of cooperative leaders and managers had a significant positive effect on the preparation and application of SAK ETAP-based financial statements.Keywords : chairman, manager, SAK ETAP, cooperative

Sign in / Sign up

Export Citation Format

Share Document