Sheena Salvarrey

Sheena Salvarrey
Universidad de la República de Uruguay | UdelaR · Instituto de Biología

PhD

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17
Publications
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Publications

Publications (17)
Article
Latin America (LA) plays an important role in the global food supply and dedicates a significant part of its surface to croplands. Current losses of wild and managed pollinators are a threat to agricultural production because the productivity of many crops depends on entomophilous pollination; thus, consequences could be significant for the develop...
Article
Bumble bees (Bombus spp.) are important pollinators insects involved in the maintenance of natural ecosystems and food production. Bombus pauloensis is a widely distributed species in South America, that recently began to be managed and commercialized in this region. The movement of colonies within or between countries may favor the dissemination o...
Article
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La constancia floral que muestran los ápidos durante sus viajes de forrajeo es un tema de amplio debate, tanto por los mecanismos cognitivos subyacentes, como por su implicancia en la optimización en la recolección de alimento y por las consecuencias para las especies botánicas visitadas. Los abejorros del género Bombus han sido buenos modelos para...
Article
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utilizados para nuestra alimentación (Kearns et al., 1998; Klein et al., 2007; Potts et al., 2010). En la actualidad estamos transitando por una crisis de polinizadores a nivel mundial como consecuencia de diversos factores como los cambios en el uso del suelo con aumento de los monocultivos, la pérdida y fragmentación de los hábitats, la utilizaci...
Article
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Solanum lycopersicum) using native bumblebees (Bombus atratus) as pollinators in greenhouse Características del fruto de tomate (Solanum lycopersicum) utilizando abejorros nativos (Bombus atratus) como polinizadores en invernáculo Características do tomate (Solanum lycopersicum) utilizando abelhas nativas (Bombus atratus) como polinizadores no cult...
Presentation
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Red clover (Trifolium pratense) is the most used forage legume in Uruguay and many times seed production is insufficient, failing to meet national demand, one of the causes being the lack of pollination. Previous studies shows that with the use of the native bumblebee, Bombus atratus, good promising productive results are obtained. The recent avail...
Article
Bumblebees (Bombus spp.), considered as important angiosperm pollinators, harbor several mite species associated with their nests. In the present study, 403 bumblebees -B. pauloensis (n = 285) and B. bellicosus (n = 118)- were surveyed at five departments from Uruguay: Canelones, Colonia, Montevideo, Florida and Soriano. The mite species Kuzinia sp...
Article
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Los abejorros del género Bombus Latreille (Hymenoptera: Apidae) juegan un rol relevante en el mantenimiento de ecosistemas naturales y en la producción agrícola por su gran capacidad como polinizadores. La reducción de sus poblaciones y la extinción de algunas especies ha sido verificada en algunos países de Europa, en Estados Unidos, Brasil, Chile...
Article
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In Uruguay the historical production of red clover seeds (Trifolium pratense) is slightly over 100 kg/ha. This low value can beexplained by the difficulty of pollination in this species. The aim of this study was to assess the red clover seed yield under fieldconditions using native bumblebees Bombus atratus and Bombus bellicosus as main pollinator...
Article
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As elsewhere in the world, bumble bees play a vital role as pollinators in Uruguay, but knowledge on their health status is still limited. Between September 2012 and May 2013, 403 adult individuals of the two species of Bombus known for the country (B. atratus, B. bellicosus) were collected in six localities. We found that 177 (119 B. atratus, 58 B...
Article
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The flower constancy (the visit to a single plant species during a foraging trip) in pollinator insects is a theme widely discussed in behavioral ecology and has an important implication in the evolution of angiosperms. This behavior was studied in the bumblebees Bombus atratus Franklin and Bombus bellicosus Smith through palynological analysis of...
Article
Nosema ceranae is one of the most prevalent pathogens in Apis mellifera and has recently been found in multiple host species including several species of bumblebees. Prevalence and infection intensity of N. ceranae was determined in two species of native bumblebees from Uruguay. N. ceranae was the only microsporidia identified and mean prevalence w...
Article
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Bumblebees (Bombus) are excellent pollinators that contribute to the maintenance of many ecosystems and commercial crop production. Commercial rearing of bumblebees has been performed for 30 years with some Eurasian and Northamerican species. Uruguay has two native bumblebees: Bombus atratus y B. bellicosus, whose artificial rearing is considered d...
Poster
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Apimondia Ucrania Within the superfamily Apoidea (Hymenoptera) are seven families of bees, of which five are represented in Uruguay. There have been more than 50 species of native bees belonging to the families: Apidae, Megachilidae, Halictidae, and Colletidae Andrenidae. Within the family Apidae is the genus Bombus Latreille 1802, with large bees,...
Data
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Resumen Los abejorros del género Bombus son excelentes polinizadores que contribuyen al mantenimiento de muchos ecosistemas y a la producción de cultivos comerciales. La cría comercial de abejorros se realiza desde hace 30 años con algunas especies euroasiáticas y norteamericanas. Uruguay cuenta con dos especies nativas de abejorros: Bombus atratus...
Article
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Bumblebees (Bombus sp.) are eusocial insects with an annual life cycle whose use as pollinator of crops has gained great importance in modern agriculture. Several authors have found that resource use in Bombus species is usually based on the correlation between the proboscis length of the bumblebees and the corolla depth of the flowers. The aim of...

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Projects (3)
Project
Estudio de la taxonimía, etología, morfología y biología de las abejas Nativas.