|Appears in Collections:||Biological and Environmental Sciences Journal Articles|
|Peer Review Status:||Refereed|
|Title:||High incidence of pollen theft in natural populations of a buzz-pollinated plant|
Vergara, Carlos H
|Citation:||Solis-Montero L, Vergara CH & Vallejo-Marin M (2015) High incidence of pollen theft in natural populations of a buzz-pollinated plant, Arthropod-Plant Interactions, 9 (6), pp. 599-611.|
|Abstract:||More than 20,000 angiosperm species possess non-dehiscent anthers that open through small pores at the anther’s tip. These flowers are visited by bees that use vibrations to remove pollen, a phenomenon known as buzz pollination. However, some floral visitors fail to transfer pollen efficiently, either through a mismatch of flower and insect size, or because they are unable to buzz-pollinate. These visitors collect pollen, but provide little or no pollination, behaving as pollen thieves. Although pollen theft is widespread in plants, few studies have quantified the incidence of pollen thieves for buzz-pollinated plants. We use observations of natural populations and floral manipulations ofSolanumrostratum(Solanaceae) to investigate the incidence of pollen theft, find morphological and behavioural differences between pollinators and thieves, measure the pollination efficiency of visitors, and characterize the reproductive ecology of this herb. We found that most visitors act as thieves, with <20% of all bees contacting the stigma. Insect visitors that regularly failed to contact the stigma (illegitimate visitors), included buzzing and non-buzzing bees, were significantly smaller, visited fewer flowers per bout, and stayed longer in each flower than (legitimate) visitors that regularly contact the stigma. Few flowers visited solely by illegitimate visitors set fruit. Our results show thatS.rostratumrequires insect visitation to set seed and natural populations experience moderate pollen limitation. We conclude that insect size, relative to the flower, is the main determinant of whether a visitor acts as a pollinator or a pollen thief inS.rostratum.|
|Rights:||This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Publisher policy allows this work to be made available in this repository; Published in Arthropod-Plant Interactions, Volume 9, Issue 6 , pp 599-611 The final publication is available at Springer via http://dx.doi.org/10.1007/s11829-015-9397-5|
|Affiliation:||University of Stirling|
Universidad de las Américas-Puebla (UDLAP)
Biological and Environmental Sciences
|Solis-Montero et al_Pollen Theft MS.pdf||422.62 kB||Adobe PDF||Under Embargo until 1/1/2017 Request a copy|
Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependant on the depositor still being contactable at their original email address.
This item is protected by original copyright
Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
If you believe that any material held in STORRE infringes copyright, please contact firstname.lastname@example.org providing details and we will remove the Work from public display in STORRE and investigate your claim.