Please use this identifier to cite or link to this item: http://hdl.handle.net/10125/51566

Effects of Soil Nutrient Availability on Non-Native Invasive and Native Plants in Hawaiian Wet and Dry Ecosystems

File SizeFormat 
2016-12-ms-knauf.pdf3.87 MBAdobe PDFView/Open

Item Summary

Title: Effects of Soil Nutrient Availability on Non-Native Invasive and Native Plants in Hawaiian Wet and Dry Ecosystems
Authors: Knauf, Amanda
Keywords: carbon amendments
invasive species
resource use strategy
restoration
tropical ecosystem
Issue Date: Dec 2016
Publisher: [Honolulu] : [University of Hawaii at Manoa], [December 2016]
Abstract: Native ecosystems globally face constant pressure from nonnative, invasive plants. One potential restoration technique to favor native species is to decrease soil nutrient availability via carbon amendments. I evaluated survival, growth, reproductive output, resource use efficiency (RUE) and ecophysiology of native and invasive species from Hawaii in a greenhouse experiment in each of five soil nutrient treatments. Results show that, in general, native species had neutral responses to soil nutrient levels, whereas large decreases in growth and whole plant carbon gain of invasive species were observed with decreasing soil nutrients. Photosynthetic capacity was constant for all species across varying soil nutrient levels. RUE of native species was constant, while that of invasive species decreased with decreasing soil nutrient availability. Collectively, these results suggest that reducing soil nutrient availability is a promising technique for restoring native Hawaiian ecosystems where nutrient availability is high and invasive species are a concern.
Description: M.S. University of Hawaii at Manoa 2016.
Includes bibliographical references.
URI/DOI: http://hdl.handle.net/10125/51566
Appears in Collections:M.S. - Natural Resources and Environmental Managament


Please contact sspace@hawaii.edu if you need this content in an ADA compliant alternative format.

Items in ScholarSpace are protected by copyright, with all rights reserved, unless otherwise indicated.