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27 resultados encontrados para: AUTOR: Roubik, David Ward
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1.
- Capítulo de libro con arbitraje
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The value of plants for the mayan stingless honey bee Melipona beecheii (Apidae: Meliponini): a pollen-based study in the Yucatán Peninsula, Mexico
Villanueva Gutiérrez, Rogel (autor) ; Roubik, David Ward (autor) (1951-) ; Colli Ucán, Wilberto (autor) ; Tuz Novelo, Margarito (autor) ;
Disponible en línea
Contenido en: Pot-pollen in stingless bee melittology / Patricia Vit, Silvia R.M. Pedro, David W. Roubik, editors Cham, Switzerland, German : Springer International Publishing AG, 2018 p. 67-76 ISBN:978-3-319-61838-8 :: 978-3-319-61839-5 (eBook)
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2.
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Have native Hymenoptera or Africanized bees become aggressive foragers due to resource competition?
Roubik, David Ward (1951-) ; Villanueva Gutiérrez, Rogel (coaut.) ;
Contenido en: Trends in Entomology Vol. 13 (2017), p. 95-102 ISSN: 0972-4761
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3.
- Artículo con arbitraje
More than protein? Bee–flower interactions and effects of disturbance regimes revealed by rare pollen in bee nests
Villanueva Gutiérrez, Rogel ; Roubik, David Ward (coaut.) (1951-) ;
Contenido en: Arthropod-Plant Interactions Vol. 10, no. 1 (February 2016), p. 9-20 ISSN: 1872-8847
Resumen en: Inglés |
Resumen en inglés

Bees and their host flower populations were studied by identifying pollen to species or genus, from trap nests where bees were reared. Rare plant species in bee diets, and disturbance regimes, have not previously been researched and are emphasized here. Two focal bee groups with one species each (Megachilidae and Apidae) were studied in a 500,000-ha tropical reserve in the Yucatán Peninsula nine complete years. The number of rare or major pollen species in nests had no statistical correlation; thus, rare pollen analysis complements study of major brood provisions. We found most nests (87 % Megachile zaptlana, 93 % Centris analis) contained rare pollen; only 12 % of the 438 nests contained major pollen alone. Rare pollen sometimes indicated an energy source rather than a scarce protein resource. Trichome nectar |of Cydista, along with Ipomoea and Caesalpinia, were nectar sources. Malpighiaceae, despite lacking nectar, often provided the complete Centris diet. Considering rare pollen, only Centris responded to drought, or competition from immigrant honeybees. Neither bee responded to hurricanes. Drought years coincided with low bee populations; Centris nests contained more rare species then. After feral Africanized honeybees colonized, Centris had more major species and fewer rare. Some herbarium vouchers from the study area contained exotic pollen, demonstrating in situ floral contamination and ecological generalization by bees, but this rarely occurred in plants found among the bee diets. Megachile and Centris responded differently to competition and resource scarcity, and plausibly evolved under different disturbance regimes, yet appeared well adapted to hurricane disturbance.


4.
- Capítulo de libro con arbitraje
Bee–plant interactions: competition and phenology of flowers visited by bees
Villanueva Gutiérrez, Rogel ; Roubik, David Ward (coaut.) (1951-) ; Porter Bolland, Luciana (coaut.) ;
Contenido en: Biodiversity and conservation of the Yucatan Peninsula New York : Springer International Publishing Switzerland, 2015 p. 131-152 ISBN:978-3-319-06528-1
Resumen en: Inglés |
Resumen en inglés

We present results of the flowering phenology of most plant species visited by European and Africanized honey bee (Apis mellifera ligustica and A. mellifera scutellata, respectively) in the Yucatán Peninsula. Colonies from both bee types visited the largest number of plant species at the end of the wet season (September and October) and the beginning of the dry season (November). A calendar is presented to indicate the community phenology of the floral resources of Apis mellifera. Comparisons were made in order to assess potential competition between both honey bee groups and between honey bees and native bees in relation to their food resources. Trees were also a constant pollen resource for Apis mellifera and Melipona beecheii, a native stingless bee. Solitary bees and M. beecheii bee seemed to change their floral resource use, both show ‘resource partitioning’ to avoid competition. For example, two important plant families, Anacardiaceae and Euphorbiaceae, were lost to competing honey bees, but compensated for by greater use of Fabaceae, Rubiaceae, and Sapotaceae among solitary bees. Invasive generalist pollinators may, however, cause specialized competitors to fail, especially in less biodiverse environments. Deforestation, hurricanes, and fires are three factors that affect the habitat and food resources for bee colonies. Within agricultural areas, having large areas of natural vegetation, corridors, or strips of vegetation between the crop fields is important to favor adequate diversity of natural pollinators for pollination of crop plants.


5.
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Introduction. Many cultivated plants do well with exotic pollinators, and native pollinators can also serve exotic crops. Both can be optimized for agriculture. We studied Nephelium lappaceum L. (Sapindaceae), an andro-dioecious Asian plant, in tropical Mexico. The hermaphrodite flowers were not known to shed viable pollen, and outcrossing from male pollinating plants was thought essential for efficient horticulture. Materials and methods. We used the locally developed CERI61 variety of rambutan and conducted experiments on pollination and fruit yield. An orchard of 1,000 trees was studied intensively during two flowering seasons in Chiapas, Mexico. Plantation yields were recorded for 10 years. We compared open pollination experiments with pollinator exclusion and ‘induced pollination’ treatments. We caged some trees with colonies of stingless bees: Scaptotrigona and Tetragonisca. Results and discussion. Caged flowers produced fruit, with no male plant present. Pollen dehisced and was viable on approximately 5% of flowers. Trees caged with pollinators, and open pollination treatments revealed 9.1 times more mature fruit than trees without pollinators. Fruit mass was significantly higher in induced pollination treatments. Yields exceeding 7 t ha-1 were obtained during a ten-year test period. Scaptotrigona mexicana (Apidae, Meliponini) was the main pollinator, followed by social halictid bees (Halictus hesperus). Feral Africanized honeybees were not strongly attracted to flowers. Conclusion. Both stingless bee species in open pollination treatments and within cages showed that fruit production increased nearly 10-fold in this variety of rambutan. Although outcrossing versus selfing did not affect initial mature fruit set, a superior fruit yield, in weight and size, was obtained from selfing mediated by pollinators in caged trees.

Resumen en frances

Introduction. Beaucoup de plantes cultivées s’accommodent de pollinisateurs importés mais les pollinisateurs naturels contribuent également à la récolte de fruits exotiques. Les deux types peuvent être optimisés pour l’agriculture. Nous avons étudié le rambutan, Nephelium lappaceum L. (Sapindaceae), une espèce fruitière asiatique andro-dioïque, dans les conditions tropicales du Mexique. Les fleurs hermaphrodites ne sont pas connues pour libérer du pollen viable, aussi la participation des plantes mâles fécondantes est essentielle en horticulture productive. Matériel et méthodes. Nous avons testé la variété CERI61 développée localement en expérimentation agronomique portant sur le rendement en fruits et sur la pollinisation. Un verger de 1000 arbres a été étudié intensivement pendant deux saisons florifères dans le Chiapas. Les rendements fruitiers du verger ont été enregistrés sur 10 années. Nous avons comparé les traitements entre une pollinisation ouverte avec exclusion de tout pollinisateur et une «pollinisation forcée». Quelques arbres ont été maintenus en cage, avec des colonies d’abeilles sans dard : Scaptotrigona et Tetragonisca.

Résultats et discussion. Des fleurs en cage ont produit des fruits en l’absence de toute plante mâle. Le pollen produit était déhiscent et viable sur près de 5 % des fleurs. Les traitements en cage avec des pollinisateurs, et en pollinisation ouverte ont révélé 9.1 fois plus de fruits arrivant à maturité qu’en l’absence de pollinisateurs. La masse de fruits récoltés était significativement plus élevée suite aux traitements d’induction de pollinisation que dans tout autre traitement. Des rendements excédant 7 t ha-1 ont été obtenus sur une période-test de dix ans. Scaptotrigona mexicana (Apidae, Meliponini) était le pollinisateur principal recensé, suivi par des abeilles halictid sociales (Halictus hesperus), alors que les abeilles africanisées sauvages n’ont pas été fortement attirées par les fleurs de rambutan. Conclusion. L’espèce d’abeille sans dard utilisée tant dans des traitements de pollinisation ouverte que sous cage a contribué à une augmentation proche de 10 fois la récolte de fruits de cette variété de rambutan. Bien que la fécondation croisée n’ait pas affecté la mise à fruit initiale par rapport à l’autofécondation, un rendement supérieur a été obtenu, en poids et en taille de fruits, grâce aux pollinisateurs sur fleurs en cage.


6.
- Artículo con arbitraje
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Resumen en: Inglés |
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We analyzed the topological structure (e.g., links per species, connectance, core-periphery analyses, specialization, nestedness, modularity) of plant-bee interactions of four areas in Mexico. We used qualitative data (binary networks). Mexico exhibits a complex geography and community variation that can affect bee networks. Network architecture is variable within large spatial scales, thus our results should vary according to site characteristics (La Mancha and Totula in Veracruz, Carrillo Puerto in Quintana Roo, and the Tehuacan- Cuicatlan valley, in Puebla), type of vegetation, endemism, altitude, size of area sampled. Network topology varied among sites, and the presence of nested or modular patterns was analyzed for robustness to simulated species extinctions. The lowest species richness was recorded for the Quintana Roo site (15 plant, 25 bee species), and the highest for the Tehuacan-Cuicatlan valley site (88 plant, 231 bee species). There was a tendency to have more connected networks when species richness was low and networks with greater species richness had a higher number of interactions. The distribution of interactions differed between environments but not due to network size and all were significantly nested. The robustness to cumulative extinctions showed a different pattern at each site; the most robust network was at Carrillo Puerto, which also was the site with less species. Sites with more endemic species (e.g. Tehuacan) had more specialized interactions, and were more susceptible to extinction.


7.
- Artículo con arbitraje
Transgenic soybean pollen (Glycine max L.) in honey from the Yucatán peninsula, Mexico
Villanueva Gutiérrez, Rogel ; Guillén Navarro, Griselda Karina (coaut.) ; Roubik, David Ward (coaut.) (1951-) ; Moguel Ordóñez, Yolanda Beatriz (coaut.) ;
Contenido en: Scientific Reports No. 4 (February 2014), p. 1-4 ISSN: 2045-2322
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Using precise pollen species determination by conventional microscopic methods, accompanied by molecular genetic markers, we found bees collect GMO (genetically modified) soybean pollen and incorporate it in Yucatan honey. Honey comb samples from Las Flores, Campeche, Mexico, often contained soybean pollen. Pollen in honey was analyzed in nine samples; six contained substantial soy pollen and two tested positive for soybean GMO. Our analyses confirm field observations that honey bees, Apis mellifera, gather soybean pollen and nectar. The resultant risk for honey production in the Yucata´n Peninsula and Mexico is evident in wholesale price reduction of 12% when GMO products are detected and honey consignments are rejected. Although this affects only 1% of current export honey (2011–2013) GMO soybean is an unacknowledged threat to apiculture and its economics in one of the world’s foremost honey producing areas.


8.
- Artículo con arbitraje
A critical view of colony losses in managed mayan honey-making bees (Apidae: Meliponini) in the heart of zona maya
Villanueva Gutiérrez, Rogel ; Roubik, David Ward (coaut.) (1951-) ; Collí Ucán, Wilberto (coaut.) ; Güemes Ricalde, Francisco Javier (coaut.) ; Buchmann, Stephen L. (coaut.) ;
Contenido en: Journal of the Kansas Entomological Society Vol. 86, no. 4 (Oct. 2013), p. 352-362 ISSN: 0022-8567
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This research considered native Mayan stingless bees, Melipona beecheii, with special attention to decrease in their managed colonies. From a total of 155 beekeepers located in 60 communities, 58 were randomly selected to survey in 2011. Their experience ranged from less than one to 50 years, and initial colonies from one to 100. Both structured and open interviews were conducted. Participants generally reported they believed bees were obtaining less food, which could produce colony loss. The present and a previous survey in the Zona Maya show colony loss averages 4–5% each year. In this study, during an average of 10 years, 27 beekeepers lost none, 9 lost all, and the remainder lost 44% of their colonies. Further analysis revealed colony loss had no association with relative habitat disturbance, presumed Africanized honey bee abundance, or beekeeping experience. However, those initially with more colonies in a meliponary lost them at a greater rate, indicating competition for food. Initial colony number was near 11, but currently is near 4 per meliponary. Little colony propagation (husbandry) was the norm until recently, when initiatives including meliponiculture workshops stimulated more husbandry. Twenty-six percent of beekeepers had less than one year experience and they began meliponaries using wild colonies. Because established meliponicultors were found to very seldom rely on new wild colonies, increased husbandry efforts are necessary to offset natural mortality of managed colonies. Five meliponicultors increased their colonies over 300% in two years (40 to 123 colonies), whereas a 34% loss in nine years (480 to 206 colonies) was found among the individuals randomly surveyed.


9.
- Libro con arbitraje
Pot-honey: a legacy of stingless bees / Patricia Vit, Silvia R. M. Pedro, David W. Roubik, editors
Vit, Patricia (editora) ; Pedro, Silvia R. M. (editora) ; Roubik, David Ward (editor) (1951-) ;
New York, New York, United States : Springer Science+Business Media , 2013
Clasificación: 638.1 / P67
Bibliotecas: San Cristóbal
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SIBE San Cristóbal
ECO010017640 (Prestado)
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Índice | Resumen en: Inglés |
Resumen en inglés

The meliponines, stingless honey-making bees, encircle the tropical world and penetrate every forest there. This book brings together and synthesizes, on a global scale and for the first time, information on these bees as honey producers and natural alchemists. Their ability to store their food in flexible cerumen ‘pots’ made from wax and resin enables them to produce honey for which the world has no other source. These little known and often rare denizens of remote reaches of the globe have found a way to produce honey and survive in the permanently wet and unforgiving rain forests, since before the continents of Africa and South America split apart 100 million years ago. In Australia, we find them equipped to survive in cold deserts, and in the Amazon some feed within the nests of other social bees, utilize flesh of dead animals, or even live among scale bugs that give them food and building material. Some are obligate parasites, stealing the brood food from inside nests of other meliponines. Pot-honey is a minor honey in the market but a major honey in the forest, produced by many hundreds of flowering plants and demanding integrated conservation. Complementing the unifloral honeys of Apis mellifera, many more pot-honeys are yet to be appreciated by the public. The analytical corpus developed to study and standardize honey produced in combs is also valid for pot-honey. Honey ferments inside the nests of Meliponini, and the process continues after harvest. According to A. mellifera standards it is spoiled, yet a more medicinal product results and may remodel our concept of honey. As shown here, the meliponines, support a legacy of bees interacting with human culture, traditions, art, science and philosophy.

Índice

Part I Origin, Biodiversity and Behavior of the Stingless Bees (Meliponini)
1 The Meliponini
2 Historical Biogeography of the Meliponini (Hymenoptera, Apidae, Apinae) of the Neotropical Region
3 Australian Stingless Bees
4 Stingless Bees from Venezuela
5 Stingless Bees (Hymenoptera: Apoidea: Meliponini) of French Guiana
6 Stingless Bees of Guatemala
7 Stingless Bees of Costa Rica
8 Stingless Bees in Argentina
9 Mexican Stingless Bees (Hymenoptera: Apidae): Diversity, Distribution, and Indigenous Knowledge
10 The Role of Useful Microorganisms to Stingless Bees and Stingless Beekeeping
11 Microorganisms Associated with Stingless Bees
12 Stingless Bee Food Location Communication: From the Flowers to the Honey Pots
13 On the Diversity of Foraging-Related Traits in Stingless Bees
Part II Stingless Bees in Culture, Traditions and Environment
14 Stingless Bees: A Historical Perspective
15 Medicinal Uses of Melipona beecheii Honey, by the Ancient Maya
16 Staden’s First Report in 1557 on the Collection of Stingless Bee Honey by Indians in Brazil
17 Melipona Bees in the Scientific World: Western Cultural Views
18 Taxonomy as a Tool for Conservation of African Stingless Bees and Their Honey
19 Effects of Human Disturbance and Habitat Fragmentation on Stingless Bees
Part III What Plants Are Used by the Stingless Bees?
20 Palynology Serving the Stingless Bees
21 How to Be a Bee-Botanist Using Pollen Spectra
22 Important Bee Plants for African and Other Stingless Bees
23 Botanical Origin of Pot-Honey from Tetragonisca angustula Latreille in Colombia
Part IV Sensory Attributes and Composition of Pot-Honey
24 Sensory Evaluation of Stingless Bee Pot-Honey
25 Melipona favosa Pot-Honey from Venezuela
26 Tetragonisca angustula Pot-Honey Compared to Apis mellifera Honey from Brazil

27 Honey of Colombian Stingless Bees: Nutritional Characteristics and Physicochemical Quality Indicators
28 The Pot-Honey of Guatemalan Bees
29 Pot-Honey of Six Meliponines from Amboró National Park, Bolivia
30 An Electronic Nose and Physicochemical Analysis to Differentiate Colombian Stingless Bee Pot-Honey
31 Nuclear Magnetic Resonance as a Method to Predict the Geographical and Entomological Origin of Pot-Honey
32 Nonaromatic Organic Acids of Honeys
Part V Biological Properties
33 Flavonoids in Stingless-Bee and Honey-Bee Honeys
34 Antioxidant Activity of Pot-Honey
35 Use of Honey in Cancer Prevention and Therapy
36 Bioactivity of Honey and Propolis of Tetragonula laeviceps in Thailand
37 Costa Rican Pot-Honey: Its Medicinal Use and Antibacterial Effect
38 Immunological Properties of Bee Products
39 Chemical Properties of Propolis Collected by Stingless Bees
Part VI Marketing and Standards of Pot-Honey
40 Production and Marketing of Pot-Honey
Appendix A Taxonomic Index of Bees
Appendix B List of Bee Taxa
Appendix C Common Names of Stingless Bees
Appendix D Taxonomic Index of Plant Families
Appendix E List of Plant Taxa Used by Bees
Appendix F Common Names of Plants Used for Nesting by Stingless Bees
Appendix G Common Names of Medicinal Plants Used with Honey by Mayas
Appendix H Microorganisms Associated to Stingless Bees or Used to Test Antimicrobial Activity
Appendix I Summary of Meliponine and Apis Honey Composition
Appendix J Information of Collected Stingless Bees
Index


10.
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Abejas sociales, solitarias y parásitas
Roubik, David Ward (autor) (1951-) ; Collí Ucán, Wilberto (autor) ; Villanueva Gutiérrez, Rogel (autor) ;
Contenido en: Riqueza biológica de Quintana Roo. Un análisis para su conservación Distrito Federal, México : Comisión Nacional para el Conocimiento y Uso de la Biodiversidad : El Gobierno del Estado de Quintana Roo : El Colegio de la Frontera Sur : Programa de Pequeñas Donaciones-México, 2011 Tomo 2, p. 205-211 ISBN:978-607-7607-47-2
Bibliotecas: Campeche , Chetumal , San Cristóbal
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51710-30 (Disponible)
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