Pollen spectrum and the effects of weather variables on main pollen types in Dikili (Turkey) atmosphere

2020 ◽  
Vol 53 (2) ◽  
Author(s):  
Aycan Tosunoglu
Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 225
Author(s):  
Asma Ghorab ◽  
María Shantal Rodríguez-Flores ◽  
Rifka Nakib ◽  
Olga Escuredo ◽  
Latifa Haderbache ◽  
...  

This study aimed to characterize the honeys of Babors Kabylia through sensory, melissopalynological and physico-chemical parameters. Thirty samples of honey produced in this region were collected over a period of two years and analyzed. All the samples presented physico-chemical parameters in conformity with legislation on honey quality, with few exceptions, linked mainly to beekeeping management. The pollen spectrum revealed a great diversity with 96 pollen types. The main pollen types were spontaneous species as Fabaceae (Hedysarum, Trifolium, Genisteae plants), Asteraceae plants, Ericaceae (Erica arborea L.) or Myrtus and Pistacia. The sensory properties of samples showed a high tendency to crystallization, the colors were from white to brown, but most of them had gold color. Smell and odor corresponded mainly to vegetal and fruity families and in taste perceptions besides sweetness highlighted sourness and saltiness notes. Seventeen samples were polyfloral, one was from honeydew and twelve were monofloral from heather, genista plants, sulla, blackberry or Asteraceae. Heather and the honeydew samples showed the darkest color, the highest electrical conductivity and phenol and flavonoid content. A statistical analysis based on the most representative pollen types, sensory properties and some physico-chemical components allowed the differentiation of honey samples in terms of botanical origin.


1982 ◽  
Vol 54 (5) ◽  
pp. 403-420
Author(s):  
Anna-Liisa Varis ◽  
Juha Helenius ◽  
Kari Koivulehto

Pollen spectra were analysed on 160 honey samples representing the whole beekeeping area of Finland in the years 1977 and 1978. A semi-quantitative method of pollen analysis based online counts was developed. It was found efficient for determining the relative numbers of pollen grains in the honey samples. On average, ca. 16 pollen types were identified per sample. The number of honeydew elements was low in all samples. Brassicaceae pollen was the dominant type. The other most frequent and abundant types were pollen grains of Trifolium repens + T. hybridum, Salix spp., "the Rosaceae group” (Prunus, Malus, Sorbus spp.), Apiaceae, and Filipendula ulmaria. These pollen types constituted 90.8 % (1977) and 90.3 % (1978) of all the pollen examined. Between 1960—1963 and 1977—1978 the average proportion of Brassicaceae pollen has risen, while the proportion of T. repens + T. hybridum pollen has decreased, evidently due to the changes in agricultural practices. The seasonal variation in the pollen spectrum was explained by the weather conditions. Regionally characteristic pollen spectra were not found, although Brassicaceae pollen was typical of the honeys of agricultural zones I and II, due to cultivation of Brassica oilseed crops in those regions. The positive correlation of the proportion of Brassicaceae pollen with the total pollen count is discussed in connection with the problem of determining the botanical origin.


Sociobiology ◽  
2019 ◽  
Vol 66 (2) ◽  
pp. 279
Author(s):  
Brunelle Ramos Andrade ◽  
Andreia Santos do Nascimento ◽  
Emanuella Lopes Franco ◽  
Daiane Rodrigues dos Santos ◽  
Rogério Marcos De Oliveira Alves ◽  
...  

The floristic composition of an environment is important to ensure the trophic niche of bee species. Melipona scutellaris Latreille, is a typical stingless bee of Atlantic rainforest sites in northeastern Brazil, a region widely established in meliponaries for honey and pollen production. M. scutellaris is reared (meliponiculture) in rural and urban areas, where the species depends on the availability of different plants for nectar and pollen collection. In this study, we estimated food niche width, equitativity, and similarity between different colonies of M. scutellaris in highly urbanized and industrialized sites of the Metropolitan Region of Salvador, Bahia State, Brazil. We analyzed pollen spectrum of 58 honey samples from six meliponaries, during 12 months. We identified 111 pollen types distributed in 28 plant families. The Fabaceae family showed the highest diversity in pollen types (33.33% of the total) and Mimosa caesalpiniifolia was the most frequent pollen type, found in 100% of the samples. M. scutellaris concentrated its foraging activity on a few trophic resources (H’ = 2.69 and J’ = 0.01) indicating a few melittophilous plant species belonging to the genera Eucalyptus, Mimosa, Protium, Serjania and Tapirira, should be managed on a regional scale to favor meliponiculture with this native bee species.


2001 ◽  
Vol 61 (1) ◽  
pp. 63-67 ◽  
Author(s):  
C. A. L. de CARVALHO ◽  
A. C. de C. C. MORETI ◽  
L. C. MARCHINI ◽  
R. M. de O. ALVES ◽  
P. C. F. de OLIVEIRA

In spite of the importance of the "uruçu" bee as honey producer of excellent quality, as well, potential pollinator both in agricultural and natural ecosystems, mainly in North-eastern Brazil, just some information is found in literature about sources that such bees utilize to collect nectar and pollen. The identification of the plants visited by Melipona scutellaris was accomplished with base on the analysis of pollen types found in the honey samples collected every two months, from March 1997 to February 1998, in 15 colonies located in Catu, State of Bahia, Brazil (12°21'00"S, 38°22'40"W, 76 m of altitude). Qualitative and quantitative analysis of the pollen types were carried out determining the percentage and occurrence classes. Twenty-eight pollen types were found, being considered dominant pollen, the Eucalyptus spp. and Psidium sp. types and secondary pollen, Bauhinia sp., Caesalpinia sp. and Mimosa verrucata types. It was verified dominant pollen of Eucalyptus spp. in honeys produced in November/December 1997 and January/February 1998. The families Caesalpiniaceae (14%), Mimosaceae (25%) and Myrtaceae (56%) were the most represented in the pollen spectrum.


2012 ◽  
Vol 59 (1) ◽  
pp. 251-256
Author(s):  
Ernest Stawiarz

During 2003 and 2004 apicultural seasons, 25 samples of honeys were collected in 10 localities of Lipnik (świętokrzyskie Province) countryside. Pollen analysis was made according to the requirements of the International Commission for Bee Botany IUSB (Louveaux et al., 1978). There were identified pollen of 85 taxa in the examined samples of honeys: pollen of 62 nectariferous and 23 non-nectariferous plants. Participation of non-nectariferous plant pollen in particular samples ranged between 0.3 and 28.4%. Among the nectariferous plant pollen, the highest pollen frequency (above 50%) have been stated for Brassicaceae (with <i>Brassica napus</i>), <i>Prunus</i> type, <i>Trifolium repens</i>, <i>Anthriscus</i> type, <i>Salix</i>, <i>Aesculus</i>, <i>Rubus</i> type, <i>Tilia</i>, <i>Taraxacum</i> type, <i>Galeopsis</i> and <i>Heracleum</i> type, among non-nectariferous plans: <i>Poaceae</i>, <i>Papaver</i> and <i>Fragaria</i>. On average, a particular honey contained 16 pollen types of nectariferous plants (range 7-26) and 7 of non-nectariferous (range 1-13). Among the examined samples, there were 11 specific honeys: 7 compatible with the Polish Standard - 4 samples of <i>Brassica napus</i> honeys, 2 <i>Robinia pseudacacia</i>, 1 <i>Tilia</i>, and 4 samples of honeys out of his this standard. There were 3 <i>Galeopsis</i> honeys and 1 honey from <i>Phacelia</i>. The remaining 14 samples were classified as multifloral honeys compatible with the Polish Standard. The woods and scrubs as well as meadows and pastures supplied main sources of honeybee flow in the examined area.


Sociobiology ◽  
2020 ◽  
Vol 67 (2) ◽  
pp. 268
Author(s):  
Rogério Ribeiro de Souza ◽  
Alyne Daniele Alves Pimentel ◽  
Lizandra Ludgerio Nogueira ◽  
Vanessa Holanda Righetti de Abreu ◽  
Jaílson Santos de Novais

This study aimed to identify the pollen grains found in honeys of Melipona (Michmelia) seminigra pernigra Moure & Kerr and Melipona (Melikerria) interrupta Latreille in two communities of the Tapajós-Arapiuns Extractive Reserve, Lower Amazon (Pará, Brazil) between December 2016 and November 2017. Twenty-four samples of honey were processed, 12 samples from M. seminigra pernigra collected in the Suruacá community and 12 samples from M. interrupta in the Vila Franca community. After acetolysis, 103 pollen types were identified, distributed across 22 families, plus eight indeterminate types. Fifty-nine types were exclusive to M. seminigra pernigra, 29 types were exclusive to M. interrupta and 15 pollen types were shared between both species. Anacardiaceae, Burseraceae, Melastomataceae, and Myrtaceae were the most attractive pollen families, providing key resources for maintenance of these bee populations. The sharing of pollen types between both bee species revealed a high similarity in preference for certain resources. M. seminigra showed greater diversity (H’ = 1.928) than M. interrupta (H’ = 1.292). Furthermore, the diversity (H’) and equitability (J’) indexes showed a more homogeneous pattern in the pollen spectrum of honeys from M. seminigra in most months studied. These data suggest that meliponiculturists should consider the diversity of plant species found in the two communities and keep them close to the meliponary, which will favor honey management and production, as well as the local biodiversity.


2017 ◽  
Vol 100 (4) ◽  
pp. 881-888
Author(s):  
Blanka Bilić Rajs ◽  
Ivana Flanjak ◽  
Jelena Mutić ◽  
Vesna Vukojević ◽  
Slađana Đurđić ◽  
...  

Abstract Rape (Brassica sp.) unifloral honey from Croatia was characterized by certain physicochemical parameters, micro- and macroelement content, and pollen spectrum, as determined in 21 honey samples. The Brassica sp. pollen type was predominant in the analyzed samples and ranged between 60 and 98%, with Trifolium spp., Robinia pseudoacacia, Rosaceae, Helianthus annuus, Salix spp., and Taraxacum officinale as the main accompanying pollen types. The electrical conductivity mean value was 0.22 ± 0.05 mS/cm and the glucose/fructose ratio mean value was 1.1 ± 0.07, whereas sucrose was absent in the samples. The most abundant macroelement was potassium (K) (268.49 mg/kg), followed by phosphorus (P) (60.23 mg/kg), calcium (Ca) (54.02 mg/kg), sodium (Na) (22.52 mg/kg), sulfur (S) (15.79 mg/kg), and magnesium (Mg) (12.58 mg/kg). Toxic elements were mainly bellow the LODs; only arsenic (As) concentration was detectable in higher amount (0.233 mg/kg), which may be related to the high arsenic concentration in the soil and groundwater of eastern Croatia. The differences between the two harvesting seasons observed in a large number of elements could be related to climatic and soil conditions and different nectar yields originating from the associated plant species.


2019 ◽  
Vol 12 (6) ◽  
pp. 69
Author(s):  
A. M. V. Santos ◽  
A. S. Nascimento ◽  
J. S. Santos ◽  
S. M. P. C. Silva ◽  
C. I. S. Lucas ◽  
...  

Knowledge of the flora that bees visit is important for characterization of their products and conservation of flora and fauna. Thus, this study identified the flora used by Apis mellifera L. (Hymenoptera: Apidae) during the honey production period through the pollen spectrum. Honey samples were collected at apiaries in the municipality of Cruz das Almas, Bahia, Brazil. International methods for samples preparation were used. ETOH was use for honey dilution and subsequently subjected to acidic treatment by the standard method of acetolysis. The pollen content resulting from the analysis was examined under an optical microscope, with separation and counting of pollen grains. Pollen types were identified by consultation and comparison to reference pollen collections and specialized literature. Twenty-seven pollen types distributed among 19 botanical families were identified in the sample set, and Fabaceae, Rubiaceae, Asteraceae and Sapindaceae were the families with a greater number of pollen types. The most frequent pollen types were Mimosa tenuiflora, Vernonia condensata, Bidens, Hyptis, Amaranthus spinosus, Schefflera morototoni and Serjania pernambucensis, all with relative frequency in samples equal to or greater than 70%. The honey evaluated showed a diverse pollen spectrum, evidencing multifloral characteristic.


2015 ◽  
Vol 68 (4) ◽  
pp. 383-389 ◽  
Author(s):  
Victoria Valeriivna Rodinkova

<p>The article deals with the main pollen spectrum in relation to patients’ sensitivity determined in the ambient air of Vinnitsa city located in central Ukraine. The study performed by gravimetric sampling in the years 1999–2000 and by volumetric sampling in the years 2009–2014 showed that <em>Urtica</em>, <em>Betula</em>, <em>Pinus</em>, <em>Alnus</em>, <em>Fraxinus</em>, <em>Ambrosia</em>, <em>Artemisia</em>, <em>Juglans</em>, <em>Carpinus</em>, <em>Populus</em>, <em>Quercus</em>, <em>Acer</em>, <em>Salix</em>, Poaceae, Amarathaceae, and Polygonaceae pollen grains are prevalent among the airborne allergen types in the urban atmosphere. The principal pollen types remain the same but over time their quantities have changed. The relative abundance of <em>Carpinus</em> and Amaranthaceae airborne pollen decreased while the fraction of <em>Urtica</em> pollen increased in the last decade. From 50 to 69 pollen types were determined in the ambient air depending on the season. From 24 to 27 pollen types represented woody plants and from 22 to 46 pollen types belonged to the herbaceous plants. A considerable decrease in herbal pollen types is noted in the Vinnitsa air at present.</p><p>It was shown that children were sensitive to weed pollen grains, including ragweed, mugwort, and grass, while adults were more sensitive to tree and grass pollen grains. Further studies of the pollen spectrum in the ambient air of this city are required in order to control the hay fever symptoms.</p>


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