World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Plos Biology : Specialization Does Not Predict Individual Efficiency in an Ant, Volume 6

By Dornhaus, Anna

Click here to view

Book Id: WPLBN0003928979
Format Type: PDF eBook :
File Size:
Reproduction Date: 2015

Title: Plos Biology : Specialization Does Not Predict Individual Efficiency in an Ant, Volume 6  
Author: Dornhaus, Anna
Volume: Volume 6
Language: English
Subject: Journals, Science, Biology
Collections: Periodicals: Journal and Magazine Collection (Contemporary), PLoS Biology
Historic
Publication Date:
Publisher: Plos

Citation

APA MLA Chicago

Dornhaus, A. (n.d.). Plos Biology : Specialization Does Not Predict Individual Efficiency in an Ant, Volume 6. Retrieved from http://netlibrary.net/


Description
Description : The ecological success of social insects is often attributed to an increase in efficiency achieved through division of labor between workers in a colony. Much research has therefore focused on the mechanism by which a division of labor is implemented, i.e., on how tasks are allocated to workers. However, the important assumption that specialists are indeed more efficient at their work than generalist individuals—the ‘‘Jack-of-all-trades is master of none’’ hypothesis— has rarely been tested. Here, I quantify worker efficiency, measured as work completed per time, in four different tasks in the ant Temnothorax albipennis : honey and protein foraging, collection of nest-building material, and brood transports in a colony emigration. I show that individual efficiency is not predicted by how specialized workers were on the respective task. Worker efficiency is also not consistently predicted by that worker’s overall activity or delay to begin the task. Even when only the worker’s rank relative to nestmates in the same colony was used, specialization did not predict efficiency in three out of the four tasks, and more specialized workers actually performed worse than others in the fourth task (collection of sand grains). I also show that the above relationships, as well as median individual efficiency, do not change with colony size. My results demonstrate that in an ant species without morphologically differentiated worker castes, workers may nevertheless differ in their ability to perform different tasks. Surprisingly, this variation is not utilized by the colony—worker allocation to tasks is unrelated to their ability to perform them. What, then, are the adaptive benefits of behavioral specialization, and why do workers choose tasks without regard for whether they can perform them well? We are still far from an understanding of the adaptive benefits of division of labor in social insects.

 

Click To View

Additional Books


  • Plos Biology : Taste Perception ; Cracki... (by )
  • Plos Biology : Two Distinct E3 Ubiquitin... (by )
  • Plos Biology : Pezt ; a Bacterial Suicid... (by )
  • Plos Biology : Nicotinamide Riboside Kin... (by )
  • Plos Biology : the Period Length of Fibr... (by )
  • Plos Biology : a Chaperonin Subunit with... (by )
  • Plos Biology : Self-organization and Reg... (by )
  • Plos Biology : Smooth Muscle Tension Ind... (by )
  • Plos Biology : Both Barriers and Trait C... (by )
  • Plos Biology : Where Does Bluetongue Vir... (by )
  • Plos Biology : Open Access to Research i... (by )
  • Plos Biology : a Small Force Remodels a ... (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.