Experimental investigation of the effect of spatial aggregation on reproductive success in a rewardless orchid

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Etat: Public
Version: de l'auteur
ID Serval
serval:BIB_2B3643123A2D
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Experimental investigation of the effect of spatial aggregation on reproductive success in a rewardless orchid
Périodique
Oecologia
Auteur(s)
Internicola A. I., Juillet N., Smithson A., Gigord L. D.
ISSN
0029-8549 (Print)
Statut éditorial
Publié
Date de publication
12/2006
Volume
150
Numéro
3
Pages
435-41
Notes
Comparative Study Journal Article Research Support, Non-U.S. Gov't --- Old month value: Dec
Résumé
Plant reproductive success within a patch may depend on plant aggregation through pollinator attraction. For rewardless plants that lack rewards for pollinators, reproductive success may rely strongly on the learning abilities of pollinators. These abilities depend on relative co-flowering rewarding and rewardless plant species spatial distributions. We investigated the effect of aggregation on the reproductive success of a rewardless orchid by setting up 16 arrays in a factorial design with two levels of intraspecific aggregation for both a rewardless orchid and a rewarding co-flowering species. Our results show that increasing aggregation of both species negatively influenced the reproductive success of the rewardless plants. To our knowledge, this is the first experimental study demonstrating negative effects of aggregation on reproductive success of a rewardless species due both to its own spatial aggregation and that of a co-flowering rewarding species. We argue that pollinator learning behaviour is the key driver behind this result.
Mots-clé
Analysis of Variance Animals Bees/*physiology *Demography Feeding Behavior/*physiology France Orchidaceae/*physiology *Pollen Reproduction/physiology
Pubmed
Web of science
Création de la notice
24/01/2008 19:08
Dernière modification de la notice
20/08/2019 13:10
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