Scholarlink

<p>The spread and density of invasive species often reflect disturbance regimes. Coastal dunes on barrier islands, frequently impacted by hurricanes, are especially vulnerable to invasion by non-native species such as <i>Triadica sebifera</i> (Chinese tallow tree). Following Hurricane Matthew (2016), we examined the response of <i>T. sebifera</i> populations on Sapelo Island, Georgia, across a chronosequence of dunes varying in age (young, intermediate, old) and microtopography (swale, slope, ridge). Adult <i>T. sebifera</i> counts were recorded across belt transects for each dune age and microtopography. Data are included for before the hurricane, one year after (2018), and four years post-hurricane (2021). We found that <i>T. sebifera</i> had established across dunes prior to disturbance and that post-hurricane recovery was resilient across the swales and slopes. Both dune age and microtopography had significant effects on mortality and recovery, indicating strong abiotic influences on disturbance responses in <i>T. sebifera</i>. Survivorship was highest on slopes for <i>T. sebifera</i>, suggesting elevation mitigates saltwater flooding impacts. Our results demonstrate that <i>T. sebifera</i> can invade undisturbed habitats and recover aggressively following major disturbance, reinforcing its invasive threat.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

The effect of Dune age and microtopography on Triadica sebifera (Chinese tallow tree) recovery from hurricane disturbance

  • 期刊论文

  • 发表日期：

    2026年2月19日

查看全文
  • Jonathan P. Evans,
  • George Burruss,
  • J. T. Michel

摘要

The spread and density of invasive species often reflect disturbance regimes. Coastal dunes on barrier islands, frequently impacted by hurricanes, are especially vulnerable to invasion by non-native species such as Triadica sebifera (Chinese tallow tree). Following Hurricane Matthew (2016), we examined the response of T. sebifera populations on Sapelo Island, Georgia, across a chronosequence of dunes varying in age (young, intermediate, old) and microtopography (swale, slope, ridge). Adult T. sebifera counts were recorded across belt transects for each dune age and microtopography. Data are included for before the hurricane, one year after (2018), and four years post-hurricane (2021). We found that T. sebifera had established across dunes prior to disturbance and that post-hurricane recovery was resilient across the swales and slopes. Both dune age and microtopography had significant effects on mortality and recovery, indicating strong abiotic influences on disturbance responses in T. sebifera. Survivorship was highest on slopes for T. sebifera, suggesting elevation mitigates saltwater flooding impacts. Our results demonstrate that T. sebifera can invade undisturbed habitats and recover aggressively following major disturbance, reinforcing its invasive threat.