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Potential Range Expansion of Japanese Honeysuckle (Lonicera japonica Thunb.) in Southern U.S. Forestlands
Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX 77843, USA
Department of Ecosystem Science and Management, Texas A&M University, College Station, TX 77843, USA
* Author to whom correspondence should be addressed.
Received: 11 June 2012; in revised form: 25 June 2012 / Accepted: 20 July 2012 / Published: 27 July 2012
Abstract: Japanese honeysuckle is one of the most aggressive invasive vines in forestlands of the southern United States. We analyzed field data collected by the U.S. Forest Service to identify potential determinants of invasion and to predict likelihood of further invasion under a variety of possible management strategies. Results of logistic regression, which classified 74% of the field plots correctly with regard to species presence and absence, indicated probability of invasion is correlated positively with adjacency to water bodies, temperature, site productivity, species diversity, and private land ownership, and is correlated negatively with slope, stand age, artificial regeneration, distance to the nearest road, and fire disturbance. Habitats most at risk to further invasion under current conditions occur throughout Mississippi, stretching northward across western Tennessee and western Kentucky, westward across southern Arkansas, eastward across north-central Alabama, and also occur in several counties scattered within Virginia. Invasion likelihoods could be increased by global climate change and reduced most by conversion to public land ownership, followed by artificial regeneration, and fire disturbance. While conversion of land ownership may not be feasible, this result suggests the opportunity for decreasing the likelihood of invasions on private lands via using selected management practices.
Keywords: biodiversity; biological invasions; habitat quality; invasive species; multiple logistic regression
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MDPI and ACS Style
Wang, H.-H.; Wonkka, C.L.; Grant, W.E.; Rogers, W.E. Potential Range Expansion of Japanese Honeysuckle (Lonicera japonica Thunb.) in Southern U.S. Forestlands. Forests 2012, 3, 573-590.
Wang H-H, Wonkka CL, Grant WE, Rogers WE. Potential Range Expansion of Japanese Honeysuckle (Lonicera japonica Thunb.) in Southern U.S. Forestlands. Forests. 2012; 3(3):573-590.
Wang, Hsiao-Hsuan; Wonkka, Carissa L.; Grant, William E.; Rogers, William E. 2012. "Potential Range Expansion of Japanese Honeysuckle (Lonicera japonica Thunb.) in Southern U.S. Forestlands." Forests 3, no. 3: 573-590.