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Information use and density-dependent dispersal in an agrobiont spider

Nele De Meester UGent and Dries Bonte UGent (2010) BEHAVIORAL ECOLOGY. 21(5). p.992-998
abstract
Density of conspecifics is considered as one of the main conditions affecting dispersal behavior and leading to a stabilization of population dynamics. Density-dependent dispersal can be induced by local competition at different phases during development and/or by density-related sources of social information. Here, we assessed the importance of population density on emigration rates and the degree to which the presence of silk threads at dispersal takeoff locations affects immediate dispersal decision making in the spider Erigone atra. By quantifying behaviors in wind tunnels under standardized laboratory conditions, silk-assisted long-and short-distance dispersal is quantified before the actual onset of the dispersal event. Increased densities during juvenile development only affected short-distance dispersal behavior. In females, short-distance dispersal increased with the female density experienced during development, whereas responses in males increased under combined high male/low female-experienced densities. Elevated densities at the onset of dispersal led to a general increase of predispersal behaviors. The presence of silk threads at takeoff platforms similarly induced an increase of dispersal displays, with specifically an increase in long-distance dispersal in both sexes. Our results demonstrate that the spider E. atra uses information related to density during development, most probably to avoid competition by performing short-distance dispersal. In contrast, density-related cues at the time of dispersal (i.e., increased densities and the presence of silk threads) increase general dispersal activities and long-distance ballooning events. Short-and long-distance dispersal strategies are consequently guided by differential density-related information use.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
density, araneae, dispersal, information, silk, LONG-DISTANCE DISPERSAL, SEX-BIASED DISPERSAL, AERIAL DISPERSAL, ERIGONE-ATRA, WOLF SPIDER, EVOLUTION, BEHAVIOR, ARANEAE, POPULATIONS, CONSEQUENCES
journal title
BEHAVIORAL ECOLOGY
Behav. Ecol.
volume
21
issue
5
pages
992 - 998
Web of Science type
Article
Web of Science id
000280903900016
JCR category
ZOOLOGY
JCR impact factor
2.926 (2010)
JCR rank
7/145 (2010)
JCR quartile
1 (2010)
ISSN
1045-2249
DOI
10.1093/beheco/arq088
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1058212
handle
http://hdl.handle.net/1854/LU-1058212
date created
2010-10-13 10:49:29
date last changed
2017-06-13 11:26:57
@article{1058212,
  abstract     = {Density of conspecifics is considered as one of the main conditions affecting dispersal behavior and leading to a stabilization of population dynamics. Density-dependent dispersal can be induced by local competition at different phases during development and/or by density-related sources of social information. Here, we assessed the importance of population density on emigration rates and the degree to which the presence of silk threads at dispersal takeoff locations affects immediate dispersal decision making in the spider Erigone atra. By quantifying behaviors in wind tunnels under standardized laboratory conditions, silk-assisted long-and short-distance dispersal is quantified before the actual onset of the dispersal event.
Increased densities during juvenile development only affected short-distance dispersal behavior. In females, short-distance dispersal increased with the female density experienced during development, whereas responses in males increased under combined high male/low female-experienced densities. Elevated densities at the onset of dispersal led to a general increase of predispersal behaviors. The presence of silk threads at takeoff platforms similarly induced an increase of dispersal displays, with specifically an increase in long-distance dispersal in both sexes.
Our results demonstrate that the spider E. atra uses information related to density during development, most probably to avoid competition by performing short-distance dispersal. In contrast, density-related cues at the time of dispersal (i.e., increased densities and the presence of silk threads) increase general dispersal activities and long-distance ballooning events. Short-and long-distance dispersal strategies are consequently guided by differential density-related information use.},
  author       = {De Meester, Nele and Bonte, Dries},
  issn         = {1045-2249},
  journal      = {BEHAVIORAL ECOLOGY},
  keyword      = {density,araneae,dispersal,information,silk,LONG-DISTANCE DISPERSAL,SEX-BIASED DISPERSAL,AERIAL DISPERSAL,ERIGONE-ATRA,WOLF SPIDER,EVOLUTION,BEHAVIOR,ARANEAE,POPULATIONS,CONSEQUENCES},
  language     = {eng},
  number       = {5},
  pages        = {992--998},
  title        = {Information use and density-dependent dispersal in an agrobiont spider},
  url          = {http://dx.doi.org/10.1093/beheco/arq088},
  volume       = {21},
  year         = {2010},
}

Chicago
De Meester, Nele, and Dries Bonte. 2010. “Information Use and Density-dependent Dispersal in an Agrobiont Spider.” Behavioral Ecology 21 (5): 992–998.
APA
De Meester, N., & Bonte, D. (2010). Information use and density-dependent dispersal in an agrobiont spider. BEHAVIORAL ECOLOGY, 21(5), 992–998.
Vancouver
1.
De Meester N, Bonte D. Information use and density-dependent dispersal in an agrobiont spider. BEHAVIORAL ECOLOGY. 2010;21(5):992–8.
MLA
De Meester, Nele, and Dries Bonte. “Information Use and Density-dependent Dispersal in an Agrobiont Spider.” BEHAVIORAL ECOLOGY 21.5 (2010): 992–998. Print.