Species of the Day: Dioon Caputoi

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© Jeff Chemnick Species of the Day: Dioon caputoi Dioon caputoi is listed as ‘Critically Endangered’ on the IUCN Red List of Threatened SpeciesTM. There are only four known populations of this small, distinctive cycad, all of which occur within the Tehuacán–Cuicatlán Biosphere Reserve along the border between the Mexican states of Puebla and Oaxaca. Habitat destruction due to ranching and agriculture has devastated many Mexican cycads. Geographical range Although plant collecting from the wild has been less severe than elsewhere in the world, www.iucnredlist.org various Mexican species, including Dioon caputoi, have been decimated by collectors. None of www.cycadsg.org the populations of this species now number more than 120 individuals, and all comprise mostly Help Save Species adult plants due to poor natural recruitment of seedlings. www.arkive.org Although Dioon caputoi receives some protection from international trade under its listing on Appendix II of CITES, additional conservation measures are still urgently needed to prevent extraction of plants and further habitat loss. Continued population monitoring as part of a long- term management plan, and the additional re-introduction of artificially propagated plants, will contribute to the survival of this range-restricted species. The production of the IUCN Red List of Threatened Species™ is made possible through the IUCN Red List Partnership: Species of the Day IUCN (including the Species Survival Commission), BirdLife is sponsored by International, Conservation International, NatureServe and Zoological Society of London..

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1 2 DR. ALICIA TOON (Orcid ID : 0000-0002-1517-2601) 3 4 5 Article type : Invited Review 6 7 8 Insect pollination of cycads 9 10 Alicia Toon1, L. Irene Terry2, William Tang3, Gimme H. Walter1, and Lyn G. Cook1 11 12 1The University of Queensland, School of Biological Sciences, Brisbane, Qld, 4072, 13 Australia 2 14 University of Utah, School of Biological Sciences, Salt Lake City, UT 84112, USA 15 3 USDA APHIS PPQ South Florida, P.O.Box 660520, Miami, FL 33266, USA 16 17 Corresponding author: Alicia Toon 18 [email protected] Ph: +61 (0) 411954179 19 Goddard Building, The University of Queensland, School of Biological Sciences, Brisbane, 20 Qld, 4072, Australia. 21 22 23 24 25 26 27 28 29 30 Manuscript Author 31 This is the author manuscript accepted for publication and has undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/AEC.12925 This article is protected by copyright. All rights reserved 32 33 Acknowledgements 34 We would like to thank Dean Brookes for discussions about genetic structure in cycad 35 pollinating thrips populations. Also, thanks to Mike Crisp for discussions about plant 36 diversification and Paul Forster for information on Australian cycads. This work was funded 37 by ARC Discovery Grant DP160102806. 38 39 Abstract 40 Most cycads have intimate associations with their insect pollinators that parallel those of 41 well-known flowering plants, such as sexually-deceptive orchids and the male wasps and 42 bees they deceive.
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