Engelmann Spruce Tree Survival and Monoterpene Concentrations Across a Climate Gradient

Five populations of Engelmann spruce (Picea engelmannii) across a climate gradient were studied in a field experiment. The dataset includes measurements of constitutive and induced monoterpene concentrations in tree phloem from 100 trees, half subjected to mass attack by spruce bark beetles, with survival recorded two years later. It was authored by Ehsan Khedive and last updated on April 22, 2026.

Use Cases

• Modeling the relationship between vapor pressure deficit and constitutive monoterpene concentrations based on the described climate gradient.
• Predicting tree survival odds based on pre-attack monoterpene concentrations as described in the study.
• Analyzing the role of rapid monoterpene induction in tree resistance to bark beetles based on the described association with survival.
• Investigating climate-defense trait correlations in conifer populations as suggested by the findings.

Strengths

• Data is from a controlled field experiment involving 100 trees across five populations.
• Findings include specific quantitative relationships: a 1 kPa increase in vapor pressure deficit correlated with a doubling of monoterpene concentration.
• Survival analysis provides concrete odds: a one-fold increase in monoterpene concentration was associated with a three-fold increase in survival odds.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is very small at 42.3 KB, indicating limited scope.

Provenance

Source

Ehsan Khedive

Collection Method

Field experiment measuring monoterpene concentrations in tree phloem before and after simulated mass attack.

Time Range

Data collected over a growing season, with survival assessed two years post-attack.

Freshness

Last updated 2026-04-22 05:47:40; freshness should be verified.

Geography

Five Engelmann spruce populations across a climate gradient, likely in North America.