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Higher clonal integration in the facultative epiphytic fern Selliguea griffithiana growing in the forest canopy compared with the forest understorey.
Lu, Hua-Zheng; Liu, Wen-Yao; Yu, Fei-Hai; Song, Liang; Xu, Xing-Liang; Wu, Chuan-Sheng; Zheng, Yu-Long; Li, Yang-Ping; Gong, He-De; Chen, Ke; Li, Su; Chen, Xi; Qi, Jin-Hua; Lu, Shu-Gang.
Afiliación
  • Lu HZ; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Liu WY; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Yu FH; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Song L; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Xu XL; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Wu CS; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Zheng YL; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Li YP; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Gong HD; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Chen K; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Li S; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Chen X; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Qi JH; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
  • Lu SG; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla 666303, China, School of Nature Conservation, Beijing Forestry University, Beijing 100083, China, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Aca
Ann Bot ; 116(1): 113-22, 2015 Jul.
Article en En | MEDLINE | ID: mdl-26050068
ABSTRACT
BACKGROUND AND

AIMS:

The advantage of clonal integration (resource sharing between connected ramets of clonal plants) varies and a higher degree of integration is expected in more stressful and/or more heterogeneous habitats. Clonal facultative epiphytes occur in both forest canopies (epiphytic habitats) and forest understories (terrestrial habitats). Because environmental conditions, especially water and nutrients, are more stressful and heterogeneous in the canopy than in the understorey, this study hypothesizes that clonal integration is more important for facultative epiphytes in epiphytic habitats than in terrestrial habitats.

METHODS:

In a field experiment, an examination was made of the effects of rhizome connection (connected vs. disconnected, i.e. with vs. without clonal integration) on survival and growth of single ramets, both young and old, of the facultative epiphytic rhizomatous fern Selliguea griffithiana (Polypodiaceae) in both epiphytic and terrestrial habitats. In another field experiment, the effects of rhizome connection on performance of ramets were tested in small (10 × 10 cm(2)) and large (20 × 20 cm(2)) plots in both epiphytic and terrestrial habitats. KEY

RESULTS:

Rhizome disconnection significantly decreased survival and growth of S. griffithiana in both experiments. The effects of rhizome disconnection on survival of single ramets and on ramet number and growth in plots were greater in epiphytic habitats than in terrestrial habitats.

CONCLUSIONS:

Clonal integration contributes greatly to performance of facultative epiphytic ferns, and the effects were more important in forest canopies than in forest understories. The results therefore support the hypothesis that natural selection favours genotypes with a higher degree of integration in more stressful and heterogeneous environments.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Bosques / Helechos Idioma: En Revista: Ann Bot Año: 2015 Tipo del documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Bosques / Helechos Idioma: En Revista: Ann Bot Año: 2015 Tipo del documento: Article