Predicting the distribution of a novel bark beetle and its pine hosts under future climate conditions

Steven E Smith, Ma G. Mendoza, Gerardo Zúñiga, Kandres Halbrook, J. L. Hayes, D. N. Byrne

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Understanding the distribution of key biotic elements of forest ecosystems is essential in contemporary forest management and in planning to meet future management needs. Habitat distribution (niche) models based on known occurrences provide geographical structure for such management as the environmental factors change. Bark beetles play critical roles in coniferous forest dynamics in western North America. Among these insects, Dendroctonus rhizophagus Thomas and Bright, which occurs in the Sierra Madre Occidental in Mexico, is unique in that it attacks only immature trees (Pinus spp.) and therefore represents a threat to forest regeneration. We developed current habitat distribution models for D. rhizophagus and its Pinus hosts and projected these to future climate scenarios. Predicted suitable habitat of D. rhizophagus currently covers approximately 119 000 km2 of which approximately 11% is occupied, and overlap with suitable habitat for all Pinus hosts exceeds 99.5%. Some suitable habitat occurs isolated from known D. rhizophagus occurrences in Mexico and the south-western U.S.A. Habitat distribution models were projected to four potential climate scenarios for the period 2040-2060 and this predicted the gains and losses of suitableD. rhizophagus habitat throughout the region. Areas of north-western Mexico maintain large areas of suitableD. rhizophagus and Pinus host habitat in all scenarios. Dispersal to isolated areas of D. rhizophagus habitat appears unlikely. The results of the present study can be used to target D. rhizophagus monitoring and management activities and may serve as a model for the management of other invasive species.

Original languageEnglish (US)
Pages (from-to)212-226
Number of pages15
JournalAgricultural and Forest Entomology
Volume15
Issue number2
DOIs
StatePublished - May 2013

Fingerprint

Rhizophagus (insect)
bark beetles
climate conditions
bark
beetle
Pinus
climate
habitat
habitats
Mexico
Dendroctonus
distribution
forest regeneration
forest dynamics
coniferous forest
invasive species
forest ecosystems
forest ecosystem
forest management
coniferous forests

Keywords

  • Curculionidae
  • Dendroctonus rhizophagus
  • Madrean Archipelago
  • Niche model
  • Scolytinae
  • Sierra Madre Oriental

ASJC Scopus subject areas

  • Insect Science
  • Agronomy and Crop Science
  • Forestry

Cite this

Predicting the distribution of a novel bark beetle and its pine hosts under future climate conditions. / Smith, Steven E; Mendoza, Ma G.; Zúñiga, Gerardo; Halbrook, Kandres; Hayes, J. L.; Byrne, D. N.

In: Agricultural and Forest Entomology, Vol. 15, No. 2, 05.2013, p. 212-226.

Research output: Contribution to journalArticle

Smith, Steven E ; Mendoza, Ma G. ; Zúñiga, Gerardo ; Halbrook, Kandres ; Hayes, J. L. ; Byrne, D. N. / Predicting the distribution of a novel bark beetle and its pine hosts under future climate conditions. In: Agricultural and Forest Entomology. 2013 ; Vol. 15, No. 2. pp. 212-226.
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