The variation in climate conditions and fire-related traits across Pinus (Pinaceae) species

作者：Bilei Wang, Dachuan Dai, Dongli Yu, Wuchao Gao, Jian Feng, Shixing Zhou, Yang Liu, Lihua Tu, Dongyu Cao, Congde Huang, Xinhua He, Xinglei Cui · 发表于：Global Ecology and Conservation · 年份：2024 · DOI：10.1016/j.gecco.2024.e03152 · 被引用次数：6 · 研究领域：Fire effects on ecosystems、Rangeland and Wildlife Management、Plant Water Relations and Carbon Dynamics

Fire has long been recognized as a significant evolutionary factor for the genus Pinus (family Pinaceae). Many pine species have developed specific fire-adaptations, such as self-pruning, resprouting, and serotiny, to persist under various fire regimes. Fire-related traits, such as needle length, bark thickness, and plant height, also can affect the survival of pines in fire-prone environments. Investigating the climate conditions of pines and analyzing the variation in fire-adaptations and fire-related traits across pines can provide insights into the evolutionary process of the genus Pinus affected by fire. However, such studies are rare, particularly those focusing on the relationship among environmental conditions, fire-adaptations, and fire-related traits with a large number of pine species. In this study, we explored the variation in climate conditions and fire-related traits (including tree height, bark thickness, and leaf length) between fire-adapted and non-fire-adapted pines, as well as among three fire survival strategies (fire-tolerators, fire-embracers, fire avoiders). We also investigated the relationships between climatic conditions and fire-related traits/fire-adaptations (including resprouting, self-pruning, the grass stage, and serotiny) across the genus Pinus . Sixty-one out of 101 pine species were found to possess one or more fire adaptations and were classified as fire-adapted pines. We found that fire-adapted pines occupy warmer and more fire-prone habi...