World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Plos Biology : a Role for Parasites in Stabilising the Fig-pollinator Mutualism, Volume 6

By Dunn, Derek W.

Click here to view

Book Id: WPLBN0003928733
Format Type: PDF eBook :
File Size:
Reproduction Date: 2015

Title: Plos Biology : a Role for Parasites in Stabilising the Fig-pollinator Mutualism, Volume 6  
Author: Dunn, Derek W.
Volume: Volume 6
Language: English
Subject: Journals, Science, Biology
Collections: Periodicals: Journal and Magazine Collection, PLoS Biology
Historic
Publication Date:
Publisher: Plos

Citation

APA MLA Chicago

Dunn, D. W. (n.d.). Plos Biology : a Role for Parasites in Stabilising the Fig-pollinator Mutualism, Volume 6. Retrieved from http://netlibrary.net/


Description
Description : Mutualisms are interspecific interactions in which both players benefit. Explaining their maintenance is problematic, because cheaters should outcompete cooperative conspecifics, leading to mutualism instability. Monoecious figs (Ficus) are pollinated by host-specific wasps (Agaonidae), whose larvae gall ovules in their ‘‘fruits’’ (syconia). Female pollinating wasps oviposit directly into Ficus ovules from inside the receptive syconium. Across Ficus species, there is a widely documented segregation of pollinator galls in inner ovules and seeds in outer ovules. This pattern suggests that wasps avoid, or are prevented from ovipositing into, outer ovules, and this results in mutualism stability. However, the mechanisms preventing wasps from exploiting outer ovules remain unknown. We report that in Ficus rubiginosa, offspring in outer ovules are vulnerable to attack by parasitic wasps that oviposit from outside the syconium. Parasitism risk decreases towards the centre of the syconium, where inner ovules provide enemy-free space for pollinator offspring. We suggest that the resulting gradient in offspring viability is likely to contribute to selection on pollinators to avoid outer ovules, and by forcing wasps to focus on a subset of ovules, reduces their galling rates. This previously unidentified mechanism may therefore contribute to mutualism persistence independent of additional factors that invoke plant defences against pollinator oviposition, or physiological constraints on pollinators that prevent oviposition in all available ovules.

 

Click To View

Additional Books


  • Plos Biology : a Post-burst Afterdepolar... (by )
  • Plos Biology : Copy Number Variation of ... (by )
  • Plos Biology : Recent Origin and Cultura... (by )
  • Plos Biology : Ankyrin-b Coordinates the... (by )
  • Plos Biology : Centromeres Convert but D... (by )
  • Plos Biology : Ancient Dna Indicates Far... (by )
  • Plos Biology : High Guanine and Cytosine... (by )
  • Plos Biology : Phylomemetics—evolutionar... (by )
  • Plos Biology : the Evolution of Connecti... (by )
  • Plos Biology : Sucrose Utilization in Bu... (by )
  • Plos Biology : Cell-passage Activity is ... (by )
  • Plos Biology : Stopping the Rot, Volume ... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.