Role of winter temperature and climate change on the survival and future range expansion of the hemlock woolly adelgid (Adelges tsugae) in eastern North America

Annie Paradis, Joe Elkinton, Katharine Hayhoe, John Buonaccorsi

Research output: Contribution to journalArticlepeer-review

100 Scopus citations

Abstract

Global climate change has already affected the abundances, range limits, and interactions of many species. The hemlock woolly adelgid (Adelges tsugae), an invasive insect introduced to eastern North America from Japan, has decimated stands of eastern hemlock (Tsuga canadensis) and Carolina hemlock (T. caroliniana) from Georgia to Connecticut. However, its spread across central and northern New England has been slowed substantially by its inability to tolerate cold winter temperatures. Using data from previous lab and field studies collected over the past 17 years, including adelgid spread and overwintering mortality, we first characterize the temperature conditions that may limit adelgid spread. We then show how, in the future, rising winter temperatures due to climate change are likely to remove the conditions currently limiting adelgid spread, and facilitate the northward expansion as more suitable habitat becomes available.

Original languageEnglish
Pages (from-to)541-554
Number of pages14
JournalMitigation and Adaptation Strategies for Global Change
Volume13
Issue number5-6
DOIs
StatePublished - Jun 2008

Keywords

  • Adelges tsugae
  • Climate change
  • Hemlock
  • Invasive species
  • Woolly adelgid

Fingerprint

Dive into the research topics of 'Role of winter temperature and climate change on the survival and future range expansion of the hemlock woolly adelgid (Adelges tsugae) in eastern North America'. Together they form a unique fingerprint.

Cite this