| Salticid predation as one potential driving force of ant mimicry in jumping spiders. | |
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MedLine Citation:
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PMID: 20961898 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Many spiders possess myrmecomorphy, and species of the jumping spider genus Myrmarachne exhibit nearly perfect ant mimicry. Most salticids are diurnal predators with unusually high visual acuity that prey on various arthropods, including conspecifics. In this study, we tested whether predation pressure from large jumping spiders is one possible driving force of perfect ant mimicry in jumping spiders. The results showed that small non-ant-mimicking jumping spiders were readily treated as prey by large ones (no matter whether heterospecific or conspecific) and suffered high attack and mortality rates. The size difference between small and large jumping spiders significantly affected the outcomes of predatory interactions between them: the smaller the juvenile jumping spiders, the higher the predation risk from large ones. The attack and mortality rates of ant-mimicking jumping spiders were significantly lower than those of non-ant-mimicking jumping spiders, indicating that a resemblance to ants could provide protection against salticid predation. However, results of multivariate behavioural analyses showed that the responses of large jumping spiders to ants and ant-mimicking salticids differed significantly. Results of this study indicate that predation pressure from large jumping spiders might be one selection force driving the evolution of nearly perfect myrmecomorphy in spiders and other arthropods. |
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Authors:
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Jin-Nan Huang; Ren-Chung Cheng; Daiqin Li; I-Min Tso |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-10-20 |
Journal Detail:
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Title: Proceedings. Biological sciences / The Royal Society Volume: 278 ISSN: 1471-2954 ISO Abbreviation: Proc. Biol. Sci. Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-03-24 Completed Date: 2011-08-01 Revised Date: 2012-05-08 |
Medline Journal Info:
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Nlm Unique ID: 101245157 Medline TA: Proc Biol Sci Country: England |
Other Details:
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Languages: eng Pagination: 1356-64 Citation Subset: IM |
Affiliation:
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Department of Life Science, Tunghai University, Taichung 40704, Taiwan, Republic of China. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Ants / physiology* Biological Evolution Body Size Food Chain Predatory Behavior Spiders / anatomy & histology*, genetics, physiology* Taiwan |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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