The nectar spur is not only a simple specialization for long-proboscid pollinators

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F17%3A43895744" target="_blank" >RIV/60076658:12310/17:43895744 - isvavai.cz</a>
Alternative codes found
RIV/60077344:_____/17:00478073 RIV/67985939:_____/17:00478073 RIV/00216208:11310/17:10370528
Result on the web
<a href="http://onlinelibrary.wiley.com/doi/10.1111/nph.14677/epdf" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/nph.14677/epdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/nph.14677" target="_blank" >10.1111/nph.14677</a>

Result language
angličtina
Original language name
The nectar spur is not only a simple specialization for long-proboscid pollinators
Original language description
Since the time of Darwin, biologists have considered the floral nectar spur to be an adaptation representing a high degree of plant specialization. Nevertheless, some researchers suggest that nature is more complex and that even morphologically specialized plants attract a wide spectrum of visitors. We observed visitors on Impatiens burtonii (Balsaminaceae) and measured the depth of the proboscis insertion into the spur, the distance of the nectar surface from the spur entrance and the visitor's effectiveness. The hoverfly Melanostoma sp., with the shortest proboscis, was most active early in the morning and fed on pollen and nectar near the spur entrance. The honeybee Apis mellifera and the hoverfly Rhingia mecyana were the most frequent visitors before and after noon, respectively. Although R. mecyana, the only visitor able to reach the end of the spur, was the most frequent, it did not deposit the largest number of pollen grains per visit. Nectar spurs may function as complex structures allowing pollination by both short- and long-proboscid visitors and separating their spatial and temporal niches. Spurred plants should be considered as more generalized and exposed to more diverse selection pressures than previously believed.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10611 - Plant sciences, botany

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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