ABSTRACT

The family of palms (Arecaceae) comprises around 2,400 species distributed throughout the world, from which nearly 100 species have been reported to occur in Mexico. Given their importance and the lack of information about their distribution patterns in the country, we applied stacked species distribution models to estimate the current distribution patterns of palms in Mexico. Only 47 species had enough presence records for their modeling. About 50% of the models showed that Annual Precipitation had the greatest contribution to the potential distribution. From the species analyzed, 63% are distributed in the southeast of the country with Roystonea regia as the species with the greatest extent (367,550 km²) and Coccothrinax readii occupying the smaller potential distribution (9,850 km²). It was possible to identify regions of the country with high species richness and where the establishment of new natural protected areas would help to the conservation of palm trees in Mexico. The southeast of Mexico represents the highest richness (>10 species) with about 130,000 km², and the central slope of the Mexican Pacific, a fragmented landscape with a medium potential distribution (>5 species). Our results represent an important step to guide the establishment of conservation areas for the family Arecaceae in Mexico.

摘要

棕榈科（Arecaceae）包括约 2,400 种分布在世界各地，据报道其中近 100 种分布在墨西哥。鉴于它们的重要性以及关于它们在该国分布模式的信息的缺乏，我们应用堆叠物种分布模型来估计墨西哥棕榈树的当前分布模式。只有 47 个物种有足够的存在记录来进行建模。大约 50% 的模型显示年降水量对潜在分布的贡献最大。从分析的物种来看，63% 分布在该国东南部，以Roystonea regia为最大范围（367,550 km ²）和Coccothrinax readii占据较小的潜在分布（9,850 km ²）。可以确定该国物种丰富度高的地区，以及在哪些地区建立新的自然保护区将有助于保护墨西哥的棕榈树。墨西哥东南部的丰富度最高（>10 种），面积约为 130,000 km ²，墨西哥太平洋的中央斜坡是具有中等潜在分布（> 5 种）的破碎景观。我们的结果代表了指导在墨西哥建立槟榔科保护区的重要一步。