scholarly journals Foraging Activity inPlebeia remota, a Stingless Bees Species, Is Influenced by the Reproductive State of a Colony

2010 ◽  
Vol 2010 ◽  
pp. 1-16 ◽  
Author(s):  
Patrícia Nunes-Silva ◽  
Sergio Dias Hilário ◽  
Pérsio de Souza Santos Filho ◽  
Vera Lucia Imperatriz-Fonseca
Keyword(s):  
Relative Humidity ◽  
Stingless Bees ◽  
Stingless Bee ◽  
Reproductive Diapause ◽  
Foraging Activity ◽  
Reproductive State ◽  
Reproductive Phase ◽  
Two Phases ◽  
Autumn And Winter

Colonies of the Brazilian stingless beePlebeia remotashow a reproductive diapause in autumn and winter. Therefore, they present two distinct reproductive states, during which colony needs are putatively different. Consequently, foraging should be adapted to the different needs. We recorded the foraging activity of two colonies for 30 days in both phases. Indeed, it presented different patterns during the two phases. In the reproductive diapause, the resource predominantly collected by the foragers was nectar. The majority of the bees were nectar foragers, and the peak of collecting activity occurred around noon. Instead, in the reproductive phase, the predominantly collected resource was pollen, and the peak of activity occurred around 10:00 am. Although the majority of the foragers were not specialized in this phase, there were a larger number of pollen foragers compared to the phase of reproductive diapause. The temperature and relative humidity also influenced the foraging activity.

CHARACTERIZATION OF NEST STRUCTURE AND FORAGING ACTIVITY OF STINGLESS BEE, GENIOTRIGONA THORACICA (HYMENOPETRA: APIDAE; MELIPONINI)

2015 ◽  
Vol 77 (33) ◽  
Author(s):  
Nur Farisya Mohd Saufi ◽  
Kumara Thevan
Keyword(s):  
Stingless Bees ◽  
Stingless Bee ◽  
Peak Time ◽  
Nest Architecture ◽  
Foraging Activity ◽  
Nest Structure ◽  
One Year ◽  
Bee Colonies ◽  
Worker Bee

Meliponiculture is the activity of stingless bee keeping, where the colony of stingless bees extracted from wild for the purpose of domestication. The study of stingless bee nest architecture of selected species brings benefit to this newly booming industry. Geniotrigona thoracica, is one of the largest stingless bee in Malaysia and has potential used in meliponiculture. The objectives of this study are to determine nest structure and growth, foraging activity and morphometry of worker bee. Colonies (n=3) of G. thoracica were used to study the nest structure and growth, foraging activity and morphometry of worker bee. Sampling was done for a period of one year from July 2013 until June 2014 for nest growth and foraging frequency. For morphometry study, worker bees were sampled from each nest Result showed external nest structure formed in brown mount shape and the internal nest formed by three components, horizontal brood combs that surround with honey pots and pollen pots. The nest dynamics of G. thoracica changes according to the season. The peak time foraging frequency of G. thoracica was in between 1000 hrs until 1200 hrs.  From morphometry study of worker bee, result for flight cost and aggressive cost were 8.48 ± 0.440 and 0.06 ± 0.004 respectively.

scholarly journals Effect of Larval Food Amount on in vitro Rearing of Indo-Malayan Stingless Bee Queen, Heterotrigona itama (Hymenoptera: Apidae; Meliponini)

2021 ◽  
Vol 50 (10) ◽  
pp. 2859-2867
Author(s):  
Nurul Izdihar Razali ◽  
Shamsul Bahri Abd Razak ◽  
Fatimah Hashim ◽  
Nurul Wahida Othman ◽  
Wahizatul Afzan Azmi
Keyword(s):  
Relative Humidity ◽  
Native Species ◽  
Stingless Bees ◽  
Large Scale ◽  
Survival Curve ◽  
Stingless Bee ◽  
Larval Food ◽  
In Vitro Rearing ◽  
Short Period

The demand for stingless bee colonies in Malaysia has considerably increased due to the rapid advance of meliponiculture in using the stingless bees as agricultural pollinators, as well as the commercialization of stingless bee products (i.e. honey, bee bread and propolis). Thus, in vitro queen rearing for a large scale and rapid colony multiplication must be developed in order to fulfil the public requirements in a short period. Little is known about the in vitro rearing of native stingless bee queen, Heterotrigona itama. Therefore, in this study, we investigated the amount of larval food required by H. itama queen by comparing three different amounts of larval food, viz., 100 µL, 120 µL and 150 µL. All treatments were controlled under 100% relative humidity for the first 6 days, and 75% relative humidity for the rest of larval development until queen adult emergence, under 30 °C incubator temperature. The results showed that larvae of H. itama treated with the highest amount of larval food (150 µL) led to 78% of the queen’s emergence, whereas larvae treated with 120 µL and 100 µL of larval food resulted in 40% and 0% of queen emergence. The dynamic survival curve showed that most of the larvae died before the pupation phase and reached constant stability afterward. The queen’s body and abdominal length were significantly greater than wild workers. Microscopy analysis showed that in vitro queen had well-developed reproductive system with a huge ovary and spermatheca, whereas wild worker had much smaller ovary without spermatheca. Outcomes from this study could help increase the number of colonies on a large scale, allowing for their use both ecologically and economically, and contribute to conservation efforts in native species of stingless bees.

scholarly journals Reproductive biology of Macleania rupestris (Ericaceae), a pollen-limited Neotropical cloud-forest species in Costa Rica

2010 ◽  
Vol 26 (3) ◽  
pp. 351-354 ◽  
Author(s):  
Eric J. Fuchs ◽  
Jeffrey Ross-Ibarra ◽  
Gilbert Barrantes
Keyword(s):  
Costa Rica ◽  
Relative Humidity ◽  
Reproductive Success ◽  
Cloud Forest ◽  
Fruit Production ◽  
Foraging Activity ◽  
High Altitudes ◽  
Forest Species ◽  
Effective Time ◽  
Complex Interactions

The reproductive success of hummingbird-pollinated plants often depends on complex interactions between environmental conditions and pollinator biology (Navarro 1999, Stiles 1985, Wolf et al. 1976). The effect of environment on reproductive success of hummingbird-pollinated plants is particularly pronounced at high altitudes, where large daily fluctuations in temperature, relative humidity and solar radiation limit the effective time for photosynthesis (Cavieres et al. 2000) and affect foraging activity (Navarro 1999) and abundance of pollinators (Rahbek 1997). At high altitudes in the tropical cloud forests of Costa Rica these factors may have serious impacts on fruit production.

scholarly journals Physicochemical characteristics and sensory profile of honey samples from stingless bees (Apidae: Meliponinae) submitted to a dehumidification process

2009 ◽  
Vol 81 (1) ◽  
pp. 143-149 ◽  
Author(s):  
Carlos A.L. Carvalho ◽  
Geni S. Sodré ◽  
Antonio A.O. Fonseca ◽  
Rogério M.O. Alves ◽  
Bruno A. Souza ◽  
...  
Keyword(s):  
Electric Conductivity ◽  
Stingless Bees ◽  
Reducing Sugars ◽  
Physicochemical Characteristics ◽  
Stingless Bee ◽  
Sensory Characteristics ◽  
Sensory Profile ◽  
Diastatic Activity ◽  
Sensory Evaluations

This study was conducted to evaluate the effect of a dehumidification process on the physicochemical and sensory characteristics of stingless-bee honey. Melipona scutellaris and M. quadrifasciata honey samples were submitted to a dehumidification process and to physicochemical (reducing sugars, apparent sucrose, moisture, diastatic activity, hydroxymethylfurfural, ash, pH, acidity, and electric conductivity) and sensory evaluations (fluidity, color, aroma, crystallization,flavor,and acceptability). The results indicated that the dehumidification process does not interfere with honey quality and acceptability.

scholarly journals Agrochemical synergism imposes higher risk to Neotropical bees than to honeybees

2017 ◽  
Vol 4 (1) ◽  
pp. 160866 ◽  
Author(s):  
Hudson V. V. Tomé ◽  
Gabryele S. Ramos ◽  
Micaele F. Araújo ◽  
Weyder C. Santana ◽  
Gil R. Santos ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Stingless Bees ◽  
Synergistic Effects ◽  
Stingless Bee ◽  
Key Factors ◽  
Thiophanate Methyl ◽  
Africanized Honeybee ◽  
Modes Of Action ◽  
Population Numbers

Bees are key pollinators whose population numbers are declining, in part, owing to the effects of different stressors such as insecticides and fungicides. We have analysed the susceptibility of the Africanized honeybee, Apis mellifera , and the stingless bee, Partamona helleri, to commercial formulations of the insecticides deltamethrin and imidacloprid. The toxicity of fungicides based on thiophanate-methyl and chlorothalonil were investigated individually and in combination, and with the insecticides. Results showed that stingless bees were more susceptible to insecticides than honeybees. The commercial fungicides thiophanate-methyl or chlorothalonil caused low mortality, regardless of concentration; however, their combination was as toxic as imidacloprid to both species, and over 400-fold more toxic than deltamethrin for A. mellifera . There were highly synergistic effects on mortality caused by interactions in the mixture of imidacloprid and the fungicides thiophanate-methyl, chlorothalonil and the combined fungicide formulation in A. mellifera, and also to a lesser extent in P. helleri . By contrast, mixtures of the deltamethrin and the combined fungicide formulation induced high synergy in P. helleri , but had little effect on the mortality of A. mellifera . Differences in physiology and modes of action of agrochemicals are discussed as key factors underlying the differences in susceptibility to agrochemicals.

scholarly journals Temporal–Spatial Patterns of Relative Humidity and the Urban Dryness Island Effect in Beijing City

2017 ◽  
Vol 56 (8) ◽  
pp. 2221-2237 ◽  
Author(s):  
Ping Yang ◽  
Guoyu Ren ◽  
Wei Hou
Keyword(s):  
Relative Humidity ◽  
Urban Areas ◽  
Late Summer ◽  
Beijing City ◽  
Near Surface ◽  
Suburban Areas ◽  
Island Effect ◽  
Different Seasons ◽  
Autumn And Winter ◽  
Beijing China

AbstractHourly datasets obtained by automatic weather stations in Beijing, China, are developed and employed to analyze the spatial and temporal characteristics of relative humidity (RH) and urban dryness island intensity (UDII) over built-up areas. A total of 36 stations inside the sixth ring road are considered as urban sites, while six stations in suburban belts surrounding the built-up areas are taken as reference sites. Results show that the RH is obviously smaller in urban areas than in suburban areas, indicating the effect of urbanization on near-surface atmospheric moisture and RH. A further analysis of relations between RH and temperature on varied time scales shows that the variations in RH in the urban areas are not due solely to changes in temperature. The annual and seasonal mean UDII are high in central urban areas, with the strongest UDII values occurring in autumn and the weakest values occurring in spring. The diurnal UDII variations are characterized by a steadily strong UDII stage from 2000 to 0800 LT and a minimum at 1500 or 1600 LT. The rapid shifts of UDII from high (low) to low (high) occur during the periods 0800–1600 LT (1600–2000 LT). The occurrence time of the peaks varies among different seasons: the peaks appear at 0700, 2100, 2000, and 0800 LT for spring, summer, autumn, and winter, respectively. Further analysis shows that large UDII values appear in the evenings and early nights in late summer and early to midautumn and that low UDII values mainly occur in the afternoon hours of spring, winter, and late autumn.

scholarly journals Diversity and honey properties of stingless bees from meliponiculture in East and North Kalimantan, Indonesia

2020 ◽  
Vol 21 (10) ◽  
Author(s):  
SYAFRIZAL ◽  
RICO RAMADHAN ◽  
IRAWAN WIJAYA KUSUMA ◽  
SAAT EGRA ◽  
KUNIYOSHI SHIMIZU ◽  
...  
Keyword(s):  
Stingless Bees ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Stingless Bee ◽  
Phytochemical Screening ◽  
Radical Scavengers ◽  
Tropical Rain Forests ◽  
Dpph Assay ◽  
Research Areas ◽  
Light Yellow

Abstract. Syafrizal, Ramadhan R, Kusuma IW, Egra S, Shimizu K, Kanzaki M, Arung ET. 2020. Diversity and honey properties of stingless bees from meliponiculture in East and North Kalimantan, Indonesia. Biodiversitas 21: 4623-4630. Kalimantan Island in Indonesia is covered by tropical rain forests that are rich in biodiversity. Species, include a stingless bee (Trigona spp.). Recently, stingless bee beekeeping (Meliponiculture) in this region has become popular because the honey has a unique taste, a mix of sweet, sour, and bitter which is highly valued. The objective of this study was to determine the diversity of stingless bee species, the number of colonies, type of hive, and honey properties such as taste, acidity, color, phytochemicals, and radical scavenging activity or antioxidant in meliponiculture in selected areas of Eastern and Northern Kalimantan, Indonesia. The area studied included Samarinda, Balikpapan, Penajam, Bontang, Sangatta, and Tarakan. The study conducted by visiting the farmers, collecting the stingless bees species and bee products (honey, propolis, and bee pollen), pH, color and taste determination, phytochemical screening, and DPPH assay. We found 12 species, with Heterotrigona itama and Tetragonula laeviceps being the main ones cultivated by people in all research areas, except Balikpapan. We counted 111 colonies of T. laeviceps and 99 of H. itama in the meliponiculture. There were three types of hive used by farmers in meliponiculture. Most of the honey tasted sweet and sour with acidity or pH ranging from 3-4, and color from dark brown to light yellow. The phytochemicals contained tannin, alkaloid, flavonoid, triterpenoid, carotenoid, coumarin, saponin, and carbohydrate. The Tetragonula sarawakensis honey was the most potent in term radical scavengers. Our findings showed that stingless bee honey contains antioxidants with phytochemicals that are very useful for human health.

scholarly journals A key to the genera and subgenera of stingless bees in Indonesia (Hymenoptera: Apidae)

TREUBIA ◽  
2019 ◽  
Vol 45 ◽  
pp. 65-84 ◽  
Author(s):  
Michael S. Engel ◽  
Sih Kahono ◽  
Djunijanti Peggie
Keyword(s):  
Stingless Bees ◽  
Stingless Bee ◽  
Social Bees

Indonesia harbors the greatest diversity of social bees in all of Asia, particularly of the stingless bees (Apidae: Apinae: Meliponini). Presently, 46 species of stingless bees are known across Indonesia although records are not comprehensive and additional diversity is likely present across the region.  All of the known Asiatic genera of Meliponini occur in Indonesia, making this region a critical center of modern stingless bee biodiversity in Asia. Presented here is an illustrated key to the genera and subgenera of Indonesian stingless bees, as an aid to the general identification, study, and conservation of these critical pollinators.

scholarly journals Keanekaragaman Musuh Alami Koloni Lepidotrigona terminata Smith (Hymenoptera: Apidae: Meliponinae)

2020 ◽  
Vol 6 (2) ◽  
pp. 33-39
Author(s):  
Anggun Wicaksono ◽  
Tri Atmowidi ◽  
Windra Priawandiputra
Keyword(s):  
Natural Enemies ◽  
Stingless Bees ◽  
Stingless Bee ◽  
West Java ◽  
Parasteatoda Tepidariorum ◽  
Paratrechina Longicornis ◽  
Hemidactylus Frenatus ◽  
Hemidactylus Garnotii

The research about types of natural enemies of stinless bees Lepidotrigona terminata had been conducted in West Java. All natural enemis were identified morphologically and their habitat. There were 687 individuals of 14 species of  natural enemies obtained in this research, i.e., Pseudeuophrys sp., Heliophanus sp., Argiope versicolor, Plexippus paykuli, Marpissa sp., Parasteatoda tepidariorum, Tegenaria sp., Nasutitermes javanicus, Paratrechina sp., Polyrhachis sp., Paratrechina longicornis, Rhynchium haemorrhoidale, Hemidactylus frenatus and Hemidactylus garnotii. Based on observation, spider, ants, and lizard were the predators of stingless bee. The results are expected as data and knowledge in the conservation and cultivation of stingless bees.

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