Southwestern white pine (Pinus strobiformis) species distribution models project a large range shift and contraction due to regional climatic changes

Andrew J. Shirk, Samuel A. Cushman, Kristen M Waring, Christian A. Wehenkel, Alejandro Leal-Sáenz, Chris Toney, Carlos A. Lopez-Sanchez

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Southwestern white pine (Pinus strobiformis; SWWP) is a conifer species that occurs at mid to high elevations in the mountains of Arizona, New Mexico, and northern Mexico. A key component of mixed conifer forests in the region, SWWP is an important species for wildlife and biodiversity. The dual threats of the non-native fungal pathogen that causes white pine blister rust (WPBR) and a warmer, drier projected future climate have created an uncertain future for SWWP. In this study, we used a novel multi-scale optimization approach including an ensemble of four species distribution modeling methods to explore the relationship between SWWP occurrence and environmental variables based on climate, soil, and topography. Spatial projections of these models reflecting the present climate provide an improved range map for this species that can be used to guide field data collection and monitoring of WPBR outbreaks. Future projections based on two emissions scenarios and an ensemble of 15 general circulation models project a large range shift and range contraction by 2080. Changes in the future distribution were particularly extreme under the higher emissions scenario, with a more than 1000 km northerly shift in the mean latitude and 500 m increase in the mean elevation of the species’ suitable habitat. This coincided with a range contraction of over 60% and a significant increase in habitat fragmentation. The ability of SWWP to realize its projected future range will depend on colonization at the leading edge of the range shift, including dispersal dynamics, resistance to WPBR, competition with other species, and genetic adaptations to local climate. Our results provide information that can be used to guide monitoring efforts and inform conservation planning for this keystone species.

Original languageEnglish (US)
Pages (from-to)176-186
Number of pages11
JournalForest Ecology and Management
Volume411
DOIs
StatePublished - Mar 1 2018

Fingerprint

blister rust
contraction
biogeography
Pinus
climate change
climate
rust disease
keystone species
General Circulation Models
coniferous tree
monitoring
mixed forests
habitat fragmentation
coniferous forests
conifers
topography
wildlife
planning
Mexico
conservation planning

Keywords

  • Climate change
  • Multi-scale
  • Pinus strobiformis
  • Range shift
  • Southwestern white pine
  • Species distribution model

ASJC Scopus subject areas

  • Forestry
  • Nature and Landscape Conservation
  • Management, Monitoring, Policy and Law

Cite this

Southwestern white pine (Pinus strobiformis) species distribution models project a large range shift and contraction due to regional climatic changes. / Shirk, Andrew J.; Cushman, Samuel A.; Waring, Kristen M; Wehenkel, Christian A.; Leal-Sáenz, Alejandro; Toney, Chris; Lopez-Sanchez, Carlos A.

In: Forest Ecology and Management, Vol. 411, 01.03.2018, p. 176-186.

Research output: Contribution to journalArticle

Shirk, Andrew J. ; Cushman, Samuel A. ; Waring, Kristen M ; Wehenkel, Christian A. ; Leal-Sáenz, Alejandro ; Toney, Chris ; Lopez-Sanchez, Carlos A. / Southwestern white pine (Pinus strobiformis) species distribution models project a large range shift and contraction due to regional climatic changes. In: Forest Ecology and Management. 2018 ; Vol. 411. pp. 176-186.
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