globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.foreco.2017.06.020
Scopus记录号: 2-s2.0-85021091144
论文题名:
Ecosystem engineering by Fascicularia bicolor in the canopy of the South-American temperate rainforest
作者: Ortega-Solís G.; Díaz I.; Mellado-Mansilla D.; Tello F.; Moreno R.; Tejo C.
刊名: Forest Ecology and Management
ISSN:  0378-1127
出版年: 2017
卷: 400
起始页码: 417
结束页码: 428
语种: 英语
Scopus关键词: Animals ; Ecology ; Ecosystems ; Professional aspects ; Soils ; Ecosystem engineering ; Forest management practices ; Measured temperatures ; Soil accumulations ; Species composition ; Temperate rainforest ; Temperature and humidities ; Temperature variability ; Forestry ; Bromeliaceae ; bryophytes ; Fascicularia bicolor ; Invertebrata
英文摘要: Ecosystem engineers are organisms that modify habitats and resource flows, they therefore could have a disproportionate impact on the diversity of ecological communities. Evidence suggests that trash basket epiphytes (TBE) can be considered ecosystem engineers of forest canopies, due to their relationship with arboreal soil availability and treetop communities. Here we evaluated whether the TBE Fascicularia bicolor (Bromeliaceae), modulates temperature and humidity in the forest canopy. We also investigated if this bromeliad is related with greater arboreal soil accumulation and is associated to higher diversity of other epiphytic plants and invertebrates in the canopy of the South-American temperate rainforest (SATR), in Chile. We measured temperature and humidity in ten trees within the forest before and after the experimental addition of F. bicolor. We also related the presence of F. bicolor with occurrence of soil macro-fauna and other canopy dwelling plants in a comparative field survey. Temperature variability in the canopy was reduced by F. bicolor. Soil availability was higher in sites with mats of F. bicolor. The richness of vascular epiphytes was unaltered by the presence of F. bicolor, but species composition differed between sites with and without mats on each tree. At the group level, the cover of lichens and bryophytes was greater in sites without F. bicolor, while vascular epiphytes show a larger cover in sites with F. bicolor. The species richness of invertebrates increased in treetop sites colonized by F. bicolor but species composition was not different from soil in branch bifurcations. Our results show that F. bicolor must be considered in forest management practices to determine which trees must be logged, in order to preserve the viability of populations of these key organisms in the treetops of South-American temperate rainforests. © 2017 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64256
Appears in Collections:影响、适应和脆弱性

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作者单位: Unidad de Gestión Ambiental, Dirección de Servicios, Vicerrectoría de Gestión Económica y Administrativa, Universidad Austral de Chile, Las Encinas 220, Valdivia, Chile; Laboratorio de Biodiversidad y Ecología del Dosel, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Independencia 641, Valdivia, Chile; Escuela de Graduados, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Independencia 641, Valdivia, Chile; Department of Palynology and Climate Dynamics, Albrecht-von-Haller-Institute for Plant Sciences, University of Göttingen, Untere Karspüle 2, Göttingen, Germany; Laboratorio de Dendrocronología y Cambio Global, Instituto de Conservación, Biodiversidad y Territorio, Universidad Austral de Chile, Casilla 567, Valdivia, Chile; Center for Climate and Resilience Research (CR)2, Universidad Austral de Chile, Casilla 567, Valdivia, Chile

Recommended Citation:
Ortega-Solís G.,Díaz I.,Mellado-Mansilla D.,et al. Ecosystem engineering by Fascicularia bicolor in the canopy of the South-American temperate rainforest[J]. Forest Ecology and Management,2017-01-01,400
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