EFECTOS DE LA VARIACIÓN ALTITUDINAL SOBRE LA POLINIZACIÓN EN CULTIVOS DE GULUPA (Passiflora edulis F. edulis)  <span class="so-article-trans-title" dir="auto"> Translated title: Effects of Altitudinal Variation on Pollination in Purple Passion Fruit Crops (Passiflora edulis F. edulis) </span>

There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

Abstract

El propósito de este trabajo es reconocer y diferenciar las especies visitantes y los verdaderos polinizadores de dos cultivos de gulupa (Passiflora edulis f. edulis Sims.) ubicados a diferente altitud (2225 msnm y 1657 msnm) en el municipio de Buenavista - Boyacá cordillera Oriental de Colombia. En los dos cultivos se encontraron diferencias en composición, en número de visitantes y en polinizadores. En el cultivo ubicado a 2225 msnm, se registraron siete especies, mientras que en el cultivo ubicado a 1657 msnm, se encontraron 18 especies de visitantes. Se realizaron observaciones del recurso colectado por los visitantes y la estructura floral con la que el visitante entra en contacto. Además, se realizaron cuatro tratamientos experimentales de biología floral: polinización pasiva, polinización natural, polinización manual y eficiencia de polinizadores mediante "visitas únicas", concluyendo que las especies polinizadoras son: en C1 Apis mellifera, y en C2 Xylocopa frontalis, Xylocopa lachnea y Epicharis sp.

Translated abstract

The purpose of this paper is to study in two crops of purple passionfruit Passiflora edulis f. edulis harvested at different altitudes (2225 m.a.s.l. and 1657 m.a.s.l.) in the municipality of Buenavista - Boyacá, located in the eastern Mountain range of Colombia, in order to familiarize with visitors and pollinators. This study reveals that in both crops there were differences found in composition, the number of visitors and pollinators. In the crop at 2225 m.a.s.l., 7 species were registered, while 18 species were recorded at the 1657 m.a.s.l. crop. In order to achieve this, collected material by the visitors and the floral structures with which they approach, were observed; at the same time four experiments took place: passive pollination, natural pollination, manual pollination and pollinator's efficiency. These experiments established that pollinator species are: in C1 Apis mellifera, and in C2 and Xylocopa frontalis, Xylocopa lachnea and Epicharis sp.

Related collections

Most cited references 36

Record: found
Abstract: found
Article: not found

Landscape effects on crop pollination services: are there general patterns?

Taylor H Ricketts, James Regetz, Ingolf Steffan-Dewenter … (2008)

Pollination by bees and other animals increases the size, quality, or stability of harvests for 70% of leading global crops. Because native species pollinate many of these crops effectively, conserving habitats for wild pollinators within agricultural landscapes can help maintain pollination services. Using hierarchical Bayesian techniques, we synthesize the results of 23 studies - representing 16 crops on five continents - to estimate the general relationship between pollination services and distance from natural or semi-natural habitats. We find strong exponential declines in both pollinator richness and native visitation rate. Visitation rate declines more steeply, dropping to half of its maximum at 0.6 km from natural habitat, compared to 1.5 km for richness. Evidence of general decline in fruit and seed set - variables that directly affect yields - is less clear. Visitation rate drops more steeply in tropical compared with temperate regions, and slightly more steeply for social compared with solitary bees. Tropical crops pollinated primarily by social bees may therefore be most susceptible to pollination failure from habitat loss. Quantifying these general relationships can help predict consequences of land use change on pollinator communities and crop productivity, and can inform landscape conservation efforts that balance the needs of native species and people.