Thallus hydrophobicity: A low-cost method for understanding lichen ecophysiological responses to environmental changes

被引:2
作者
Koch, Natalia Mossmann [1 ,3 ]
Dominguez, Raul Diaz [2 ]
Favaro, Ana [1 ]
Stanton, Daniel [1 ]
机构
[1] Univ Minnesota, Dept Ecol Evolut & Behav, St Paul, MN USA
[2] Univ Nacl Cordoba, Fac Ciencias Exactas Fis & Nat, Ctr Ecol & Recursos Nat Renovables, Inst Invest Biol & Tecnol, Cordoba, Argentina
[3] Univ Minnesota, Dept Ecol Evolut & Behav, 140 Gortner Lab,1479 Gortner Ave, St Paul, MN 55108 USA
关键词
ecophysiology; functional traits; hydration; lichens; water absorption; wettability; WATER; SURFACE;
D O I
10.1002/aps3.11565
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Premise: Methods to evaluate lichen thalli hydrophobicity have previously been described, but only recently has hydrophobicity been shown to be an important functional trait related to water regulation dynamics that could be used to predict future climate change effects. We describe a novel protocol to measure lichen thallus hydrophobicity that aims to be an easier and more affordable approach. Methods and Results: Our protocol requires only a micropipette, distilled water, a tripod, and a smartphone or camera. Hydrophobicity is inferred from multiple metrics associated with the absorption times of standardized droplets (initial and total absorption time). We used a data set of 93 lichen taxa with different growth forms and from different biomes and demonstrated that this method is well suited for capturing different levels of hydrophobicity, including very hydrophilic species. Conclusions: Our results show that this new protocol to measure lichen hydrophobicity is a rapid and low-cost method to assess an ecophysiologically based functional trait that can be used with almost no limitations, including in different climates, lichen species, and growth forms.
引用
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页数:6
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