scholarly journals Pollen Source Affects Development and Behavioral Preferences in Honey Bees

Insects ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 130
Author(s):  
Jun Lan ◽  
Guiling Ding ◽  
Weihua Ma ◽  
Yusuo Jiang ◽  
Jiaxing Huang
Keyword(s):  
Honey Bees ◽  
Nutritional Value ◽  
Choice Test ◽  
Physiological Status ◽  
Significant Preference ◽  
Hypopharyngeal Glands ◽  
Pollen Types ◽  
Behavioral Preferences ◽  
Foraging Preference ◽  
Pollen Consumption

With the availability of various plants in bloom simultaneously, honey bees prefer to collect some pollen types over others. To better understand pollen’s role as a reward for workers, we compared the digestibility and nutritional value of two pollen diets, namely, pear (Pyrus bretschneideri Rehd.) and apricot (Armeniaca sibirica L.). We investigated the visits, pollen consumption, and pollen extraction efficiency of caged Apis mellifera workers. Newly emerged workers were reared, and the effects of two pollen diets on their physiological status (the development of hypopharyngeal glands and ovaries) were compared. The choice-test experiments indicated a significant preference of A. mellifera workers for apricot pollen diets over pear pollen diets (number of bees landing, 29.5 ± 8.11 and 9.25 ± 5.10, p < 0.001 and pollen consumption, 0.052 ± 0.026 g/day and 0.033 ± 0.013 g/day, p < 0.05). Both pollen diets had comparable extraction efficiencies (67.63% for pear pollen and 67.73% for apricot pollen). Caged workers fed different pollen diets also exhibited similar ovarian development (p > 0.05). However, workers fed apricot pollen had significantly larger hypopharyngeal glands than those fed pear pollen (p < 0.001). Our results indicated that the benefits conferred to honey bees by different pollen diets may influence their foraging preference.

scholarly journals Nutritional benefit of fungal spores for honey bee workers

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jorgiane B. Parish ◽  
Eileen S. Scott ◽  
Katja Hogendoorn
Keyword(s):  
Honey Bee ◽  
Honey Bees ◽  
Nutritional Value ◽  
Fungal Spores ◽  
Fungal Spore ◽  
Poor Quality ◽  
Colletotrichum Acutatum ◽  
Hypopharyngeal Glands ◽  
Ovarian Activation ◽  
Honey Bee Workers

Abstract The collection of fungal spores by honey bees, Apis mellifera, can be classified as active or passive, the latter when spores are associated with pollen, nectar or honey dew. While low quality and shortage of pollen have been raised as hypotheses for fungal spore collection, the nutritional value of fungal spores for honey bees is poorly understood. Here we investigated the effect of consumption of fungal spores on survival, ovarian activation and the development of the hypopharyngeal glands (HPGs) in honey bee workers. Two pollen diets (Eucalyptus sp. pollen and a multifloral pollen) supplemented or not with spores of Botrytis cinerea, Cladosporium sp. or Colletotrichum acutatum were used. Consumption of diets that contained fungal spores increased the longevity of honey bee workers but had no significant effect on the development of their HPGs and ovaries. This demonstrates that fungal spores may have nutritional value for honey bees and that the consumption of fungal spores may compensate for nutritional imbalances of poor-quality pollen diets.

scholarly journals IoT system terpadu untuk pengelolaan sarang lebah

JURNAL ELTEK ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 9
Author(s):  
Vivien Arief Wardhany ◽  
Vivien Arief Wardhany ◽  
Alfin Hidayat
Keyword(s):  
Honey Bees ◽  
Nutritional Value ◽  
Social Insect ◽  
Human Life ◽  
Web Server ◽  
Load Cell ◽  
Integrated System ◽  
Graphical Form ◽  
Test Results ◽  
Android Application

Lebah madu adalah jenis serangga social yang hidup berkoloni. Lebah memiliki manfaat bagi kehidupan manusia yaitu dalam proses penyerbukan tanaman serta menghasilkan madu yang dapat dikonsumsi karena memilki nilai gizi yang tinggi. Pada sistem peternakan lebah modern ada beberapa hal yang perlu diperhatikan yaitu iklim, lokasi sarang lebah dengan ketersediaan tanaman (bunga) yang menjadi sumber makan bagi lebah dan material sarang lebah. Pada penelitian ini telah dibuat suatu sistem terpadu yang terdiri dari 3 bagian penyusun sistem yaitu hardware yang terdiri dari sensor suhu, kelembaban, load cell dan geo lokasi (penentu lokasi) berikutnya adalah software yang terdiri dari Web Server dan aplikasi Android yang berisi data hasil pembacaan sensor yang disajikan dalam bentuk grafik sehingga memudahkan pembacaan hasil monitoring dari hardware, serta notifikasi apabila tiba saat pemanenan sarang atau kondisi suhu dan kelembaban yang tidak sesuai dengan standar tidak terpenuhi. Hasil pengujian sistem ini didapatkan bahwa Suhu optimal pada kandang lebah dapat dipertahankan dengan aktuator. Aktuator dapat mepertahankan suhu dari 34,4 ℃ ke 32,9℃ selama 1 menit 5 detik dan dari 31,2 ℃ ke 32,2 ℃ selama 1 menit 15 detik. Aplikasi web dan android ini mempermudah para peternak lebah untuk mengelola kondisi sarang lebah dari hasil pengujian untuk monitoring kondisi sarang lebah dapat berjalan dengan baik, dimana data yang ditampilkan adalah suhu, kelembaban dan berat. Honey bees are a type of social insect that live in colonies. Bees have benefits for human life, namely in the process of pollinating plants and producing honey that can be consumed because of their high nutritional value. In the modern beekeeping sistem, there are several things that need to be considered, namely the climate, the location of the beehive and the availability of plants (flowers) which are a source of food for bees and beehive materials. In this research, an integrated system consisting of 3 parts of the system has been created, namely Hardware consisting of temperature, humidity, load cell and geo location sensors. Next is the software consisting of a Web Server and an Android application that contains reading data. sensors are presented in graphical form to facilitate reading of monitoring results from Hardware, as well as notifications when nest harvesting arrives or temperature and humidity conditions that do not comply with standards are not met. The test results of this system show that the optimal temperature in the beehive can be maintained with an actuator. The actuator can maintain temperature from 34.4 ℃ to 32.9 ℃ for 1 minute 5 seconds and from 31.2 ℃ to 32.2 ℃ for 1 minute 15 seconds. This Web and Android application makes it easier for beekeepers to manage the conditions of the beehive. From the test results for monitoring the conditions of the beehive, it can run well, where the data displayed is temperature, humidity and weight.  

scholarly journals Fructose- and glucose-conditioned preferences in FVB mice: strain differences in post-oral sugar appetition

2014 ◽  
Vol 307 (12) ◽  
pp. R1448-R1457 ◽  
Author(s):  
Anthony Sclafani ◽  
Steven Zukerman ◽  
Karen Ackroff
Keyword(s):  
Strain Differences ◽  
Choice Test ◽  
Significant Preference ◽  
Physiological Processes ◽  
Ad Libitum ◽  
Preference Conditioning ◽  
Conditioned Flavor

Recent studies indicate that, unlike glucose, fructose has little or no post-oral preference conditioning actions in C57BL/6J (B6) mice. The present study determined whether this is also the case for FVB mice, which overconsume fructose relative to B6 mice. In experiment 1, FVB mice strongly preferred a noncaloric 0.1% sucralose + 0.1% saccharin (S+S) solution to 8% fructose in a 2-day choice test but switched their preference to fructose after separate experience with the two sweeteners. Other FVB mice displayed a stronger preference for 8% glucose over S+S. In a second experiment, ad libitum-fed FVB mice trained 24 h/day acquired a significant preference for a flavor (CS+) paired with intragastric (IG) self-infusions of 16% fructose over a different flavor (CS−) paired with IG water infusions. IG fructose infusions also conditioned flavor preferences in food-restricted FVB mice trained 1 h/day. IG infusions of 16% glucose conditioned stronger preferences in FVB mice trained 24- or 1 h/day. Thus, fructose has post-oral flavor conditioning effects in FVB mice, but these effects are less pronounced than those produced by glucose. Further studies of the differential post-oral conditioning effects of fructose and glucose in B6 and FVB mice should enhance our understanding of the physiological processes involved in sugar reward.

Bt Cry1Ie Toxin Does Not Impact the Survival and Pollen Consumption of Chinese Honey Bees,Apis cerana cerana(Hymenoptera, Apidae)

2016 ◽  
Vol 109 (6) ◽  
pp. 2259-2263 ◽  
Author(s):  
Ping-Li Dai ◽  
Hui-Ru Jia ◽  
Cameron J. Jack ◽  
Li-Li Geng ◽  
Feng Liu ◽  
...  
Keyword(s):  
Honey Bees ◽  
Apis Cerana ◽  
Apis Cerana Cerana ◽  
Pollen Consumption

scholarly journals Novel Insight Into the Development and Function of Hypopharyngeal Glands in Honey Bees

2021 ◽  
Vol 11 ◽  
Author(s):  
Saboor Ahmad ◽  
Shahmshad Ahmed Khan ◽  
Khalid Ali Khan ◽  
Jianke Li
Keyword(s):  
Honey Bees ◽  
Future Research ◽  
Factors Affecting ◽  
Hypopharyngeal Glands ◽  
And Function ◽  
First Time ◽  
The Brain ◽  
Insight Into ◽  
Made In

Hypopharyngeal glands (HGs) are the most important organ of hymenopterans which play critical roles for the insect physiology. In honey bees, HGs are paired structures located bilaterally in the head, in front of the brain between compound eyes. Each gland is composed of thousands of secretory units connecting to secretory duct in worker bees. To better understand the recent progress made in understanding the structure and function of these glands, we here review the ontogeny of HGs, and the factors affecting the morphology, physiology, and molecular basis of the functionality of the glands. We also review the morphogenesis of HGs in the pupal and adult stages, and the secretory role of the glands across the ages for the first time. Furthermore, recent transcriptome, proteome, and phosphoproteome analyses have elucidated the potential mechanisms driving the HGs development and functionality. This adds a comprehensive novel knowledge of the development and physiology of HGs in honey bees over time, which may be helpful for future research investigations.

scholarly journals The active ingredients of a mitotoxic fungicide negatively affect pollen consumption and worker survival in laboratory-reared honey bees (Apis mellifera)

2021 ◽  
Vol 226 ◽  
pp. 112841
Author(s):  
Adrian Fisher ◽  
Teddy Cogley ◽  
Cahit Ozturk ◽  
Gloria DeGrandi-Hoffman ◽  
Brian H. Smith ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Honey Bees ◽  
Active Ingredients ◽  
Pollen Consumption

scholarly journals Fatty acid homeostasis in honey bees (Apis mellifera) fed commercial diet supplements

Apidologie ◽  
2021 ◽  
Author(s):  
Vanessa Corby-Harris ◽  
Meghan M. Bennett ◽  
Megan E. Deeter ◽  
Lucy Snyder ◽  
Charlotte Meador ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Grain Size ◽  
Fatty Acid ◽  
Honey Bees ◽  
Essential Fatty Acids ◽  
Commercial Diet ◽  
Diet Supplements ◽  
Foraging Preference ◽  
Low Linolenic ◽  
Different Levels

AbstractHoney bees obtain lipids from pollen or commercial supplements. These supplements do not fully support colony health. We tested the hypothesis that supplements are deficient because they lack essential fatty acids (EFAs). The five supplements we tested had low linolenic (⍵3) acid and were unbalanced (⍵6:⍵3 > 6) compared to natural pollen. We selected two of these supplements for further study because they had different levels of individual EFAs and different ⍵6:⍵3 ratios. Bees from hives fed these different supplements had equivalent tissue EFA levels. In choice assays, hives fed these different supplements were presented with flours with various absolute and relative levels of EFAs. We saw no difference in foraging preference. Rather, all hives preferred flours with small grain size and high protein to lipid ratios. We conclude that bees balance their internal EFAs and that differential colony nutrition does not affect foraging preference. The data also argue for more linolenic (⍵3) acid in commercial supplements.

scholarly journals The foraging behaviour of honey bees, Apis mellifera: a review

2014 ◽  
Vol 59 (No. 1) ◽  
pp. 1-10 ◽  
Author(s):  
HF Abou-Shaara
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Honey Bees ◽  
Foraging Behaviour ◽  
Foraging Activity ◽  
Monitoring Methods ◽  
Ambient Environment ◽  
Bee Colony ◽  
Foraging Preference ◽  
Honey Bee Colony

Foraging behaviour is one of the distinctive behaviours of honey bees, Apis mellifera. This behaviour is the link between the honey bee colony and the ambient environment. Therefore, various in-colony and out-colony factors have an impact on this behaviour, and many studies have been employed to investigate these factors. Foraging behaviour is not advantageous only for the colony and for plant pollination but also has other benefits. In contrast, some disadvantages have also been discovered to be linked with foraging activity. Practically speaking, the control over this behaviour is very important to maximize colony products as well as to increase other agricultural benefits. This paper presents a review on foraging activity including; the regulation of foraging tasks, factors impacting this behaviour, foraging preference, variations between subspecies, monitoring methods as well as the possible methods for controlling this behaviour. As concluded from this review, more work needs to be performed in order to elucidate certain aspects of foraging behaviour. &nbsp;

POLLEN STORAGE AND FORAGING BY HONEY BEES (HYMENOPTERA: APIDAE) IN HIGHBUSH BLUEBERRIES (ERICACEAE), CULTIVAR BLUECROP

1999 ◽  
Vol 131 (6) ◽  
pp. 757-768 ◽  
Author(s):  
Margriet H. Dogterom ◽  
Mark L. Winston
Keyword(s):  
Apis Mellifera ◽  
Honey Bees ◽  
Colony Size ◽  
Vaccinium Corymbosum ◽  
Highbush Blueberry ◽  
Pollen Foraging ◽  
Pollen Storage ◽  
Pollen Types ◽  
Average Proportion ◽  
Highbush Blueberries

AbstractWe investigated pollen and nectar foraging of honey bees, Apis mellifera L., from pollen-poor and pollen-rich, small and large colonies in blooming highbush blueberry, Vaccinium corymbosum L. cv. Bluecrop fields. The proportion of pollen foragers differed significantly between pollen-rich and pollen-poor colonies after storage levels were manipulated, but foraging and pollen stores returned to similar levels within a week. No differences were found in small colonies, although the proportion of pollen foragers was high (46% and 45% from pollen-rich and pollen-poor colonies, respectively). Only 7.6% of pollen foragers carried Vaccinium sp. pollen in their loads independent of treatment, day, and colony size, whereas 60.8% of nectar foragers carried up to 100 tetrads of Vaccinium sp. pollen on their bodies. The average proportion of Vaccinium sp. pollen carried by nectar and pollen foragers per day and treatment was less than 10%. Our research indicates that when colonies are placed in fields of blooming blueberry flowers, pollen foraging is stimulated in large colonies with stores that are pollen poor, but predominantly for pollen types other than blueberry. This research indicates that nectar foragers are the major visitor of highbush blueberry cv. Bluecrop and suggests that increasing the number of nectar foragers rather than pollen foragers would result in more honey bees foraging on highbush blueberry, in particular cv. Bluecrop.

scholarly journals Pollen Sources for Honey Bee Colonies at Land with Desert Nature during Dearth Period

2015 ◽  
Vol 48 (3) ◽  
pp. 73-80
Author(s):  
H.F. Abou-Shaara
Keyword(s):  
Honey Bee ◽  
Honey Bees ◽  
Critical Period ◽  
Study Objective ◽  
Pollen Types ◽  
Bee Bread ◽  
Pollen Sources ◽  
Desert Areas ◽  
Plant Families ◽  
Bee Colonies

AbstractAutumn is a critical period for honey bee colonies and the weak colonies during autumn are likely to be lost during winter. The colonies need good pollen sources during this period to be able to foster enough brood, to boost colonies survival ability during winter. The situation is worse in desert areas where few pollen sources are expected to be existed. Identifying the availability of pollen sources for honey bees at desert areas is very essential to present appropriate recommendations regarding colonies feeding and suitable plants to be cultivated in such areas. Thus, the study objective is to identify pollen sources for honey bee colonies during the autumn at El-Bostan region (a region with desert nature). Samples of bee bread were collected at different times during autumn. The samples were microscopically analyzed and pollen sources were then identified. Nine plants belong to six plant families (Pedaliaceae, Malvaceae, Poaceae, Asteraceae, Myrtaceae, Resedaceae, and Casuarinaceae) were classified as major pollen sources. The most abundant plants were casuarina and eucalyptus during autumn. Beekeepers are advised to supply their colonies regularly (each two weeks) with pollen substitutes or supplements during autumn at El-Bostan region. Honey bee workers tend to mix different pollen types together in bee bread when different pollen sources are available. The number of pollen sources in the bee bread can be used to assess the richness degree of any region with suitable pollen sources to honey bees. The identified pollen sources in this study are recommended to be cultivated in lands with similar desert nature, to provide honey bee colonies with protein feeding during this critical period of the year.

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