Journal of Evolutionary Biology Research
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Article Number - 4658D2D45680


Vol.6(2), pp. 5-8 , June 2014
DOI: 10.5897/JEBR2014.0058
ISSN: 2141-6583



Short Communication

Insect visitation of peduncular and petiolar extrafloral nectar glands on castor bean (Ricinus communis L.) plants in Southern California



Taylor Waters
  • Taylor Waters
  • Biology Department, Loyola Marymount University, 1 LMU Dr. MS 8220, Los Angeles, CA 90045
  • Google Scholar
David Chirikian
  • David Chirikian
  • Biology Department, Loyola Marymount University, 1 LMU Dr. MS 8220, Los Angeles, CA 90045
  • Google Scholar
Victor D. Carmona-Galindo*
  • Victor D. Carmona-Galindo*
  • Biology Department, Loyola Marymount University, 1 LMU Dr. MS 8220, Los Angeles, CA 90045
  • Google Scholar







 Received: 19 February 2014  Accepted: 09 June 2014  Published: 30 June 2014

Copyright © 2014 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


Castor bean (Ricinus communis L.) is a myrmecophytic plant species with specialized extrafloral nectar (EFN) glands that serve to attract predatory insects, which in return defend plant-tissues against herbivores. The EFN glands on castor bean plants are located along the leaf petioles as well as on the peduncles of its imperfect (unisexual) flowers. This field-project evaluates the richness, diversity, and species assemblage of insects visiting EFN glands located on (female and male) flower peduncles and leaf petioles on castor bean plants growing in a Southern California coastal landscape. We detected that EFN glands on female-flower peduncles were visited by an insect community that was distinct from that of the other two EFN gland types on castor bean.  Additionally, the insects visiting EFN glands on male-flower peduncles more closely resembled those observed visiting EFN glands on leaf petioles. We conclude that the observed differences in the biotic defense of foliar and unisexual floral tissues on castor bean are congruent with the optimal plant-defense strategy of a monoecious pioneer species.

Key words: Ant-plant interactions, monoecious, mutualism, myrmecophyte, plant-defense optimality, sexual dimorphism.

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APA Waters, T., Chirikian, D., & Carmona-Galindo, V. D. (2014). Insect visitation of peduncular and petiolar extrafloral nectar glands on castor bean (Ricinus communis L.) plants in Southern California. Journal of Evolutionary Biology Research, 6(2), 5-8.
Chicago Taylor Waters, David Chirikian and Victor D. Carmona-Galindo. "Insect visitation of peduncular and petiolar extrafloral nectar glands on castor bean (Ricinus communis L.) plants in Southern California." Journal of Evolutionary Biology Research 6, no. 2 (2014): 5-8.
MLA Taylor Waters, David Chirikian and Victor D. Carmona-Galindo. "Insect visitation of peduncular and petiolar extrafloral nectar glands on castor bean (Ricinus communis L.) plants in Southern California." Journal of Evolutionary Biology Research 6.2 (2014): 5-8.
   
DOI 10.5897/JEBR2014.0058
URL http://academicjournals.org/journal/JEBR/article-abstract/4658D2D45680

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