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- Article] Starvation affects pre-dispersal behaviour of Erigone spiders
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DocNo of ILP: 3940
Doc. Type: Article
Title: Starvation affects pre-dispersal behaviour of Erigone spiders
Authors: Bonte, D; Lukac, M; Lens, L
Full Name of Authors: Bonte, Dries; Lukac, Martin; Lens, Luc
Keywords by Author: behavioural plasticity; constraints; Erigone; reaction norms; starvation
Keywords Plus: WEB-BUILDING SPIDER; PHENOTYPIC PLASTICITY; AERIAL DISPERSAL; LIFE-HISTORY; ORB-WEB; EVOLUTION; HABITAT; METAPOPULATION; AVAILABILITY; LANDSCAPES
Abstract: Population studies often focus on demographic and genetic consequences of dispersal strategies, generally within an evolutionary framework. Adaptive investment in dispersal is generally assessed from single types of (pre-)dispersal behaviour that are presumed to reliably reflect the dispersal strategy adopted. Various spider families show a striking and quantifiable display, known as tiptoe behaviour that prepares individuals for take-off prior to (passive) aerial dispersal (ballooning). The lack of efficient control mechanisms during ballooning prevents individuals from actively selecting a suitable habitat for landing. Ballooning dispersal is therefore often regarded as a wind lottery preceded by individual-based risk assessment. Our laboratory experiments showed that the duration of tiptoe behaviour can be used as an indicator of silk thread length, which is related to the potential dispersal distance. For two related species, Erigone arctica and E. dentiplapis, tiptoe duration decreased independently of sex after starvation, while more complex reaction norms were observed for tiptoe frequency. Because these two aspects of dispersal behaviours show different responses towards a simple stress-factor (starvation) in two related spider species, we conclude that the level of plasticity in dispersal investment can be subject to selective forces affecting different dispersal properties in different ways. Our results, hence, plead for a more holistic approach when addressing evolutionary and applied questions related to dispersal. (C) 2007 Gesellschaft fur Okologie. Published by Elsevier GmbH. All rights reserved.
Cate of OECD: Biological sciences
Year of Publication: 2008
Business Area: lottery
Detail Business: lottery
Country: Germany
Study Area: regulation, control, meta-study, meta-study, network & communication, online, habit, risk
Name of Journal: BASIC AND APPLIED ECOLOGY
Language: English
Country of Authors: [Bonte, Dries; Lukac, Martin; Lens, Luc] Univ Ghent, Dept Biol, Terr Ecol Unit, B-9000 Ghent, Belgium
Press Adress: Bonte, D (reprint author), Univ Ghent, Dept Biol, Terr Ecol Unit, KL Ledeganckstr 35, B-9000 Ghent, Belgium.
Email Address: Dries.Bonte@Ugent.be
Citaion:
Funding:
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Number of Citaion: 41
Publication: ELSEVIER GMBH, URBAN & FISCHER VERLAG
City of Publication: JENA
Address of Publication: OFFICE JENA, P O BOX 100537, 07705 JENA, GERMANY
ISSN: 1439-1791
29-Character Source Abbreviation: BASIC APPL ECOL
ISO Source Abbreviation: Basic Appl. Ecol.
Volume: 9
Version: 3
Start of File: 308
End of File: 315
DOI: 10.1016/j.baae.2007.03.004
Number of Pages: 8
Web of Science Category: Ecology
Subject Category: Environmental Sciences & Ecology
Document Delivery Number: 313IP
Unique Article Identifier: WOS:000256734600012
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