Acumen function in leaves and its vertical distribution in a tropical rain forest of Costa Rica
Water retention on the leaf surface can be maladaptive to the plant because it increases the colonization of epiphylls and interferes with the physiologic processes of the leaf, diminishing the photosynthetic capacity. To test if leaf driptips facilitate leaf drying after rainfall in a tropical rain forest of Costa Rica, we (1) experimentally measured the capacity to retain water on leaf surfaces of 30 plant species before and after driptip removal, and (2) analyzed the development of driptips along forest strata. We expected leaf driptips to be less developed in the upper strata due to the environmental conditions of the canopy (i.e., high solar radiation, strong winds and low relative humidity), which favor the natural drying of leaves. The presence of driptips increased 100% the water run off capacity of leaves in all the analyzed species. Also, the development of leaf driptips was smaller in canopy species than in understory species. Additionally, they became less developed in canopy species as trees increased in height. These results support the hypothesis that the adaptive role of driptips is to facilitate the drying of leaf surfaces.
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2002 |
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| Erschienen: |
2002 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:50 |
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| Enthalten in: |
Revista de biologia tropical - 50(2002), 2 vom: 16. Juni, Seite 561-7 |
| Sprache: |
Spanisch |
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| Weiterer Titel: |
Función del acumen en las hojas y su distribución vertical en un bosque lluvioso tropical de Costa Rica |
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| Beteiligte Personen: |
Farji-Brener, Alejandro G [VerfasserIn] |
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| Themen: |
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| Anmerkungen: |
Date Completed 10.01.2003 Date Revised 21.11.2013 published: Print Citation Status MEDLINE |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM121237699 |
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| 245 | 1 | 0 | |a Acumen function in leaves and its vertical distribution in a tropical rain forest of Costa Rica |
| 246 | 3 | 3 | |a Función del acumen en las hojas y su distribución vertical en un bosque lluvioso tropical de Costa Rica |
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| 500 | |a Date Completed 10.01.2003 | ||
| 500 | |a Date Revised 21.11.2013 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Water retention on the leaf surface can be maladaptive to the plant because it increases the colonization of epiphylls and interferes with the physiologic processes of the leaf, diminishing the photosynthetic capacity. To test if leaf driptips facilitate leaf drying after rainfall in a tropical rain forest of Costa Rica, we (1) experimentally measured the capacity to retain water on leaf surfaces of 30 plant species before and after driptip removal, and (2) analyzed the development of driptips along forest strata. We expected leaf driptips to be less developed in the upper strata due to the environmental conditions of the canopy (i.e., high solar radiation, strong winds and low relative humidity), which favor the natural drying of leaves. The presence of driptips increased 100% the water run off capacity of leaves in all the analyzed species. Also, the development of leaf driptips was smaller in canopy species than in understory species. Additionally, they became less developed in canopy species as trees increased in height. These results support the hypothesis that the adaptive role of driptips is to facilitate the drying of leaf surfaces | ||
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| 700 | 1 | |a Arnedo, Luisa |e verfasserin |4 aut | |
| 700 | 1 | |a Villalobos, Richard |e verfasserin |4 aut | |
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