Redonda-Martínez Rosario, Pliscoff Patricio, Moreira-Muñoz Andrés, Martínez Salas Esteban Manuel, Samain Marie-Stéphanie
Instituto de Ecología, A.C., Red de Diversidad Biológica del Occidente Mexicano, Pátzcuaro 61600, Michoacán, Mexico.
Departamento de Ecología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Alameda 340, Santiago 8331150, Chile.
Plants (Basel). 2021 Mar 12;10(3):534. doi: 10.3390/plants10030534.
Mexico is floristically the fourth most species-rich country in the world, and Asteraceae is the most diverse vascular plant family in this country. The species exhibits a wide range of growth forms, but the tree-like habit, appropriately named daisy trees, is heavily underestimated, even though slightly different tree definitions are handled. Very little is known about their precise species number or conservation status in Mexico, so we update here the list of known Mexican daisy tree species, summarize their very diverse uses, present a general panorama of their present and future distribution, and discuss their conservation status. A bibliographic review and herbarium study were carried out, carefully curated taxonomical ocurrence maps were prepared for each species, and a climatic suitability modelling approach was used to characterise the spatial patterns of Mexican Asteraceae trees. With 149 daisy tree species, the country ranks second at a global level; within the country, their greatest diversity is found in central and western Mexico. A decrease in diversity is estimated in areas that currently host the highest species richness, whereas the hotspot regions are estimated to show an increase in species diversity, so climate change is not a threat to all Mexican daisy tree species.
墨西哥在植物区系方面是世界上物种第四丰富的国家，菊科是该国最多样化的维管植物科。该科物种呈现出广泛的生长形式，但树状习性（即所谓的雏菊树）却被严重低估，尽管对树的定义略有不同。人们对墨西哥雏菊树的确切物种数量或保护状况知之甚少，因此我们在此更新已知的墨西哥雏菊树物种列表，总结它们多种多样的用途，呈现其当前和未来分布的总体概况，并讨论它们的保护状况。我们进行了文献综述和标本馆研究，为每个物种精心绘制了分类学分布图，并采用气候适宜性建模方法来描述墨西哥菊科树木的空间分布格局。墨西哥有149种雏菊树，在全球排名第二；在该国境内，其多样性最高的地区位于墨西哥中部和西部。据估计，目前物种丰富度最高的地区多样性有所下降，而热点地区的物种多样性预计会增加，因此气候变化并非对所有墨西哥雏菊树物种构成威胁。
