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Reproductive Ecology and Population Genetics of Hawaiian Wiliwili, Erythrina sandwicensis (Fabaceae).

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Title:Reproductive Ecology and Population Genetics of Hawaiian Wiliwili, Erythrina sandwicensis (Fabaceae).
Authors:Grave, Emily F.
Contributors:Botany (department)
Keywords:dry forest
pollination biology
population genetics
conservation biology
Date Issued:Aug 2018
Publisher:University of Hawaiʻi at Mānoa
Abstract:Hawaiian dry forests are severely endangered with little habitat remaining and many threatened or endangered species. Wiliwili, or Erythrina sandwicensis (Fabaceae), is among the most iconic dry forest trees. This research focuses on the reproductive ecology, population genetics, and regeneration of wiliwili by addressing: 1) Who are the current flower visitors? 2) What is the effect of different pollination treatments on the number, size, and viability of wiliwili seeds and seedlings? 3) What is the genetic relationship among wiliwili populations? and 4) What is the regeneration status of populations on O‘ahu and Hawaiʻi islands? I found that all floral visitors were non-native species. Outcrossed pollination treatments produced significantly more fruit and seeds than any other treatment. Few seedlings and saplings were found in any population, and populations were genetically distinct across islands. Outplanting efforts can increase recruitment by enhancing the potential for outcrossing and increasing the number of seedlings and saplings.
Description:M.S. Thesis. University of Hawaiʻi at Mānoa 2018.
Rights:All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
Appears in Collections: M.S. - Botany

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