Variation in leaf wettability traits along a tropical montane elevation gradient.
Gregory R. Goldsmith,Gregory R. Goldsmith,Lisa Patrick Bentley,Alexander Shenkin,Norma Salinas,Benjamin Blonder,Roberta E. Martin,Rosa Castro-Ccossco,Percy Chambi-Porroa,Sandra Díaz,Brian J. Enquist,Gregory P. Asner,Yadvinder Malhi +12 more
TLDR
This work measured variation in two traits, leaf drip tips and leaf water repellency, in a series of nine tropical forest communities occurring along a 3300‐m elevation gradient in southern Peru and found that the proportion of species with drip tips did not increase with increasing precipitation, and drip tips increased with increasing temperature.Abstract:
Leaf wetting is often considered to have negative effects on plant function, such that wet environments may select for leaves with certain leaf surface, morphological, and architectural traits that reduce leaf wettability. However, there is growing recognition that leaf wetting can have positive effects. We measured variation in two traits, leaf drip tips and leaf water repellency, in a series of nine tropical forest communities occurring along a 3300-m elevation gradient in southern Peru. To extend this climatic gradient, we also assembled published leaf water repellency values from 17 additional sites. We then tested hypotheses for how these traits should vary as a function of climate. Contrary to expectations, we found that the proportion of species with drip tips did not increase with increasing precipitation. Instead, drip tips increased with increasing temperature. Moreover, leaf water repellency was very low in our sites and the global analysis indicated high repellency only in sites with low precipitation and temperatures. Our findings suggest that drip tips and repellency may not solely reflect the negative effects of wetting on plant function. Understanding the drivers of leaf wettability traits can provide insight into the effects of leaf wetting on plant, community, and ecosystem function.read more
Citations
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The value of wet leaves
TL;DR: A framework for the consideration of the relative balance of the various costs and benefits resulting from leaf wetting is provided, as well as how this balance may be expected to change given projected scenarios of global climate change in the future.
Journal ArticleDOI
Physico-chemical properties of plant cuticles and their functional and ecological significance.
Victoria Fernández,Héctor Alejandro Bahamonde,José Javier Peguero-Pina,Eustaquio Gil-Pelegrín,Domingo Sancho-Knapik,Luis Gil,Heiner E. Goldbach,Thomas Eichert +7 more
TL;DR: It is concluded that it is currently not possible to establish general permeability and wettability models that are valid for predicting liquid-surface interactions and the subsequent transport of water and electrolytes across plant surfaces.
Journal ArticleDOI
Understanding Forest Health with Remote Sensing -Part I—A Review of Spectral Traits, Processes and Remote-Sensing Characteristics
TL;DR: An overview of the definitions of FH is provided, discussing the drivers, processes, stress and adaptation mechanisms of forest plants, and how to observe FH with RS, and the concept of spectral traits (ST) and spectral trait variations (STV) in the context ofFH monitoring is introduced.
Journal ArticleDOI
The variation of productivity and its allocation along a tropical elevation gradient: a whole carbon budget perspective
Yadvinder Malhi,Cécile A. J. Girardin,Gregory R. Goldsmith,Christopher E. Doughty,Norma Salinas,Daniel B. Metcalfe,Walter Huaraca Huasco,Javier E. Silva-Espejo,Jhon del Aguilla‐Pasquell,Filio Farfán Amézquita,Luiz E. O. C. Aragão,Luiz E. O. C. Aragão,Rossella Guerrieri,Rossella Guerrieri,Françoise Yoko Ishida,Nur H. A. Bahar,William Farfan-Rios,Oliver L. Phillips,Patrick Meir,Patrick Meir,Miles R. Silman +20 more
TL;DR: In this paper, the authors quantified the autotrophic carbon budget in 16 forest plots along a 3300 m elevation transect in Peru and found that the proportion of photosynthetic respiration is not sensitive to temperature.
Journal ArticleDOI
Dynamic projection of ecological risk in the Manas River basin based on terrain gradients.
Lianqing Xue,Boli Zhu,Yiping Wu,Guanghui Wei,Shumin Liao,Changbing Yang,Jing Wang,Hui Zhang,Lei Ren,Qiang Han +9 more
TL;DR: It is found that the great ecological risk mainly happens in "high altitude and complex terrain" or "low altitude and flat terrain" areas, and the future ecological risk in medium terrain niche index (TNI) gradient will increase, while it will decrease in the lowest.
References
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