The search result changed since you submitted your search request. Documents might be displayed in a different sort order.
  • search hit 3 of 10
Back to Result List

Floral visual signal increases reproductive success in a sexually deceptive orchid

Please always quote using this URN: urn:nbn:de:bvb:20-opus-127209
  • Sexually deceptive orchids mimic signals emitted by female insects in order to attract mate-searching males. Specific attraction of the targeted pollinator is achieved by sex pheromone mimicry, which constitutes the major attraction channel. In close vicinity of the flower, visual signals may enhance attraction, as was shown recently in the sexually deceptive orchid Ophrys heldreichii. Here, we conducted an in situ manipulation experiment in two populations of O. heldreichii on Crete to investigate whether the presence/absence of theSexually deceptive orchids mimic signals emitted by female insects in order to attract mate-searching males. Specific attraction of the targeted pollinator is achieved by sex pheromone mimicry, which constitutes the major attraction channel. In close vicinity of the flower, visual signals may enhance attraction, as was shown recently in the sexually deceptive orchid Ophrys heldreichii. Here, we conducted an in situ manipulation experiment in two populations of O. heldreichii on Crete to investigate whether the presence/absence of the conspicuous pink perianth affects reproductive success in two natural orchid populations. We estimated reproductive success of three treatment groups (with intact, removed and artificial perianth) throughout the flowering period as pollinaria removal (male reproductive success) and massulae deposition (female reproductive success). Reproductive success was significantly increased by the presence of a strong visual signal—the conspicuous perianth—in one study population, however, not in the second, most likely due to the low pollinator abundance in the latter population. This study provides further evidence that the coloured perianth in O. heldreichii is adaptive and thus adds to the olfactory signal to maximise pollinator attraction and reproductive success.show moreshow less

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar Statistics
Metadaten
Author: Demetra Rakosy, Martin Streinzer, Hannes F. Paulus, Johannes Spaethe
URN:urn:nbn:de:bvb:20-opus-127209
Document Type:Journal article
Faculties:Fakultät für Biologie / Theodor-Boveri-Institut für Biowissenschaften
Language:English
Parent Title (English):Arthropod-Plant Interactions
Year of Completion:2012
Volume:6
Issue:4
Pagenumber:671-681
Source:Arthropod-Plant Interactions (2012) 6:671–681 DOI 10.1007/s11829-012-9217-0
DOI:https://doi.org/10.1007/s11829-012-9217-0
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie
Tag:eucera berlandi; male bees; ophrys heldreichii; pollination; sexual deception
Release Date:2016/07/15
Licence (German):License LogoCC BY: Creative-Commons-Lizenz: Namensnennung