Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/140886
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Bee- to bird-pollination shifts in Penstemon: effects of floral-lip removal and corolla constriction on the preferences of free-foraging bumble bees |
Autor: | Zung, Jessica L.; Forrest, Jessica R. K.; Castellanos, María Clara CSIC ORCID; Thomson, James D. | Palabras clave: | Pollination syndromes Preference Pollinator visitation Bombus Floral morphology |
Fecha de publicación: | 16-may-2015 | Editor: | Springer Nature | Citación: | Evolutionary Ecology 29(3): 341- 354 (2015) | Resumen: | Plants might be under selection for both attracting efficient pollinators and deterring wasteful visitors. Particular floral traits can act as exploitation barriers by discouraging the unwelcome visitors. In the genus Penstemon, evolutionary shifts from insect pollination to more efficient hummingbird pollination have occurred repeatedly, resulting in the convergent evolution of floral traits commonly present in hummingbird-pollinated flowers. Two of these traits, a reduced or reflexed lower petal lip and a narrow corolla, were found in a previous flight-cage study to affect floral handling time by bumble bees, therefore potentially acting as “anti-bee” traits affecting preference. To test whether these traits do reduce bumble bee visitation in natural populations, we manipulated these two traits in flowers of bee-pollinated Penstemon strictus to resemble hummingbird-adapted close relatives and measured the preferences of free-foraging bees. Constricted corollas strongly deterred bee visitation in general, and particularly reduced visits by small bumble bees, resulting in immediate specialization to larger, longer-tongued bumble bees. Bees were also deterred—albeit less strongly—by lipless flowers. However, we found no evidence that lip removal and corolla constriction interact to further affect bee preference. We conclude that narrow corolla tubes and reduced lips in hummingbird-pollinated penstemons function as exploitation barriers that reduce bee access to nectaries or increase handling time. © 2014, Springer International Publishing Switzerland. | Versión del editor: | https://doi.org/10.1007/s10682-014-9716-9 | URI: | http://hdl.handle.net/10261/140886 | DOI: | 10.1007/s10682-014-9716-9 | Identificadores: | issn: 0269-7653 |
Aparece en las colecciones: | (CIDE) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
22
checked on 25-mar-2024
WEB OF SCIENCETM
Citations
22
checked on 21-feb-2024
Page view(s)
189
checked on 18-abr-2024
Download(s)
108
checked on 18-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.