Plants and ectothermic animals use a variety of substances and mechanisms to survive
exposure to subfreezing temperatures. Proteinaceous ice nucleators trigger freezing at high …

The genus Espeletia (Asteraceae) under-went an accelerated adaptive radiation in the new
habitats of the high tropical Andes after the retreat of the glaciers. From the ancestral …

Christian Körner has been at the forefront of research investigating treelines, and in the late
1990s and early 2000s he proposed a unifying theory to explain the global occurrence of …

Generations of plant scientists have been fascinated by alpine plant life-with the exposure of
organisms to dramatic climatic gradients over a very short distance. This comprehensive text …

Low temperature represents, together with drought and salt stress, one of the most important
environmental constraints limiting the pro ductivity and the distribution of plants on the Earth …

Metrosideros polymorpha, a dominant tree species in Hawaiian ecosystems, occupies a
wide range of habitats. Complementary field and common-garden studies of M. polymorpha …

Abstract The subtribe Espeletiinae (Asteraceae), endemic to the high-elevations in the
Northern Andes, exhibits an exceptional diversity of species, growth-forms, and reproductive …

Summer frost resistance and ice nucleation temperatures for 33 alpine plant species were
measured in situ to avoid the shortcomings of laboratory tests. Species were selected to …

Deschampsia antarctica Desv.(Poaceae) and Colobanthus quitensis (Kunth)
Bartl.(Cariophyllaceae) are the only two vascular plants that have colonized the Maritime …

Background: Tropical high mountains present extreme daily temperature variations, frequent
high air evaporative demands and seasonal differences in soil water availability. Plants …