scholarly journals Factors Influencing Honeybee (Apis mellifera L.) Visits to Crepe Myrtle (Lagerstroemia sp.)

2021 ◽  
Vol 39 (4) ◽  
pp. 143-149
Author(s):  
Taryn Bazhaw ◽  
David Drake ◽  
Johanna Delgado-Acevedo ◽  
Derald A. Harp
Keyword(s):  
Apis Mellifera ◽  
Strong Preference ◽  
Moderate Correlation ◽  
Factors Influencing

Abstract Honeybees (Apis mellifera L.) are important pollinators and will selectively forage on crepe myrtle (CM) during the summer months. Unfortunately, CM pollen can become contaminated with pesticides used to control insects, especially crepe myrtle bark scale (Acanthococcus lagerstroemiae Kuwana). An experiment was conducted in July and August of 2019 and 2020 to compare honeybee visits to CM among four cultivars (‘Natchez', ‘Tuscarora', ‘Ebony Fire', and ‘Pocomoke') at an isolated location, and within a single cultivar series (Ebony) near other pollinator-friendly plants. ‘Natchez' had the most honeybee visits per tree, averaging 1.4 visits per 75 seconds per tree per day in 2019 and 1.2 visits per 75 seconds per tree per day in 2020, followed by ‘Tuscarora' with 0.8 and 0.4 honeybee visits per 75 seconds per tree per day, in 2019 and 2020, respectively. In 2020, there was a significant, moderate correlation (P< 0.001, r = 0.51) between bloom number and honeybee visits, with ‘Natchez' (158.9) and ‘Tuscarora' (148.2) having more average blooms per tree than ‘Ebony Fire' (35.6) and ‘Pocomoke' (35.7). Landscape environment and proximity to pollinator-friendly plants did not affect honeybee visits. CM are an important foraging resource for honeybees in the summer, and honeybees have a strong preference for cultivars with large, productive bloom clusters. Index words: pollinators, crepe myrtle bark scale, Acanthococcus lagerstroemiae, crepe myrtle Species used in this study: Crepe myrtle, Lagerstroemia indica L.; Lagerstroemia × faurei; Honeybee, Apis mellifera L.; American bumblebee, Bombus pensylvanicus De Geer.

scholarly journals The factors influencing the pollinators visitation of the oilseed rape cultivars

2019 ◽  
Vol 65 (No. 12) ◽  
pp. 574-580
Author(s):  
Jan Kazda ◽  
Aneta Bokšová ◽  
Martina Stejskalová ◽  
Tomáš Šubrt ◽  
Jan Bartoška ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Oilseed Rape ◽  
Honey Bees ◽  
Bumble Bees ◽  
Major Influence ◽  
Winter Oilseed Rape ◽  
Pollinator Visitation ◽  
Factors Influencing ◽  
Visitation Rates ◽  
The Individual

Currently, the hybrid cultivars are predominant in the cultivation of winter oilseed rape in Europe. Cultivation of hybrid cultivars instead of the traditional line can affect the visitation of pollinators. Beekeepers and farmers claim that hybrid cultivars are not visited by pollinators as much as the line. Ten yellow and one white flowering oilseed rape cultivars were used to compare the visitation rates of pollinators (Apis mellifera L. and Bombus sp.) during flowering in the years 2015–2017. At the same time, the visitation of hybrid and line cultivars by pollinators was evaluated. Visitation of pollinators on each cultivar was calculated from observed visitations to flowering oilseed rape plants in an area 2.1 m<sup>2</sup> from the edge of single plots for 20 s. The results from this study clearly show that the individual cultivars, whether hybrids or lines, did not have a major influence on the pollinators’ visitation, either by honey bees or bumble bees. It is thus proved that hybrid cultivars do not affect the pollinator visitation and there is no need to worry about the prevalence of these cultivars in the Czech fields. However, a more significant effect for both pollinator groups appears to have been the color of the flower.

Factors influencing the selection of recipients by workers performing vibration signals in colonies of the honeybee,Apis mellifera

2002 ◽  
Vol 63 (2) ◽  
pp. 361-367 ◽  
Author(s):  
Lee Anne Lewis ◽  
Stanley Scott Schneider ◽  
Gloria Degrandi-Hoffman
Keyword(s):  
Apis Mellifera ◽  
Vibration Signals ◽  
Factors Influencing ◽  
Selection Of

scholarly journals Prior Experience with Food Reward Influences the Behavioral Responses of the Honeybee Apis mellifera and the Bumblebee Bombus lantschouensis to Tomato Floral Scent

Insects ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 884
Author(s):  
Hong Zhang ◽  
Shuang Shan ◽  
Shaohua Gu ◽  
Xinzheng Huang ◽  
Zibo Li ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Choice Behavior ◽  
Food Reward ◽  
Floral Scent ◽  
Prior Experience ◽  
Behavioral Responses ◽  
Strong Preference ◽  
Proboscis Extension Response ◽  
Foraging Experience ◽  
Proboscis Extension

Bee responses to floral scent are usually influenced by both innate biases and prior experience. Honeybees are less attracted than bumblebees to tomato flowers. However, little is known about how tomato floral scent regulates the foraging behaviors of honeybees and bumblebees. In this study, the foraging behaviors of the honeybee Apis mellifera and the bumblebee Bombus lantschouensis on tomato flowers in greenhouses were investigated. Whether the two bee species exhibit different responses to tomato floral scent and how innate biases and prior experience influence bee choice behavior were examined. In the greenhouses, honeybees failed to collect pollen from tomato flowers, and their foraging activities decreased significantly over days. Additionally, neither naïve honeybees nor naïve bumblebees showed a preference for tomato floral scent in a Y-tube olfactometer. However, foraging experience in the tomato greenhouses helped bumblebees develop a strong preference for the scent, whereas honeybees with foraging experience continued to show aversion to tomato floral scent. After learning to associate tomato floral scent with a sugar reward in proboscis extension response (PER) assays, both bee species exhibited a preference for tomato floral scent in Y-tube olfactometers. The findings indicated that prior experience with a food reward strongly influenced bee preference for tomato floral scent.

scholarly journals Relationships between bees (Hymenoptera: Apoidea: Apiformes) and flowers in the Bulgarian agricultural landscape

2015 ◽  
Vol 84 (2) ◽  
pp. 101-126 ◽  
Author(s):  
Józef Banaszak ◽  
Piotr Szefer ◽  
Bojana Dochkova
Keyword(s):  
Apis Mellifera ◽  
Species Composition ◽  
Agricultural Landscape ◽  
Niche Overlap ◽  
Agricultural Landscapes ◽  
Food Plants ◽  
Individual Plant ◽  
Habitat Types ◽  
Factors Influencing ◽  
Pollinating Insects

Abstract The species composition and number of visitations of food plants by bees were studied in refuge sites in agricultural landscapes and in selected crops. The habitat fragments of interest are characterised in terms of pollinator diversity at genus level and the use of food plants by individual genera. Trophic and temporal niche overlap is described for individual genera and the honey bee Apis mellifera in different habitat types. Factors influencing the manner of use of individual plant species by pollinating insects are identified

Queen and pheromonal factors influencing comb construction by simulated honey bee (Apis mellifera L.) swarms

2001 ◽  
Vol 48 (1) ◽  
pp. 14-20 ◽  
Author(s):  
M.N. Ledoux ◽  
M.L. Winston ◽  
H. Higo ◽  
C.I. Keeling ◽  
K.N. Slessor ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Factors Influencing

Initial psychometric evaluation of the Community Participation Activation Scale

2018 ◽  
Vol 85 (4) ◽  
pp. 286-296 ◽  
Author(s):  
Danbi Lee ◽  
Trudy Mallinson ◽  
Carolyn M. Baum ◽  
Joy Hammel
Keyword(s):  
Environmental Factors ◽  
Community Participation ◽  
Rating Scale ◽  
Community Integration ◽  
Psychometric Evaluation ◽  
Community Dwelling ◽  
Moderate Correlation ◽  
Factors Influencing ◽  
Item Functioning ◽  
Complex Process

Background. Current assessments do not capture the dynamic and complex process of managing different individual and environmental factors influencing community participation post-stroke. Purpose. The purpose of this study was to examine the psychometric properties of the Community Participation Activation Scale (CPAS) in persons with stroke. Method. Rating scale structure, unidimensionality, reliability and precision, construct validity, and differential item functioning of the CPAS were examined with 93 community-dwelling people with stroke. Findings. The CPAS consists of 15 action items and 10 attitude items. Person separation reliabilities of the action and attitude domains were .75 and .72, respectively, and internal consistency reliabilities were good (>.80). The CPAS showed low to moderate correlation with community integration and enfranchisement constructs. Implications. The CPAS may be used as an assessment to better understand an individual’s level of activation and to inform individually designed, participation-focused interventions, although it needs further improvement to be used as a clinical measure.

Environmental factors influencing propolis production by the honey bee Apis mellifera in Minas Gerais State, Brazil

2009 ◽  
Vol 48 (3) ◽  
pp. 176-180 ◽  
Author(s):  
Gisele Cristina Olinta Ribeiro Pereira ◽  
Angel Roberto Barchuk ◽  
Isabel Ribeiro do Valle Teixeira
Keyword(s):  
Apis Mellifera ◽  
Environmental Factors ◽  
Honey Bee ◽  
Minas Gerais ◽  
Factors Influencing ◽  
Minas Gerais State

Factors influencing adhesive bonding at the bone/implant interface

1992 ◽  
Vol 50 (2) ◽  
pp. 1114-1115
Author(s):  
Julie A. Martini ◽  
Robert H. Doremus
Keyword(s):  
Electron Microscopy ◽  
Adhesive Bonding ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Bone Implant ◽  
Factors Influencing ◽  
Lr White ◽  
Transmission Electron ◽  
New Zealand White Rabbits ◽  
Scanning Electron

Tracy and Doremus have demonstrated chemical bonding between bone and hydroxylapatite with transmission electron microscopy. Now researchers ponder how to improve upon this bond in turn improving the life expectancy and biocompatibility of implantable orthopedic devices.This report focuses on a study of the- chemical influences on the interfacial integrity and strength. Pure hydroxylapatite (HAP), magnesium doped HAP, strontium doped HAP, bioglass and medical grade titanium cylinders were implanted into the tibial cortices of New Zealand white rabbits. After 12 weeks, the implants were retrieved for a scanning electron microscopy study coupled with energy dispersive spectroscopy.Following sacrifice and careful retrieval, the samples were dehydrated through a graduated series starting with 50% ethanol and continuing through 60, 70, 80, 90, 95, and 100% ethanol over a period of two days. The samples were embedded in LR White. Again a graduated series was used with solutions of 50, 75 and 100% LR White diluted in ethanol.

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