Regional and Fine Scale Variation of Holoepiphyte Community Structure in Central Amazonian White-Sand Forests
Factors controlling holoepiphyte (plants which start and complete their life cycle on a phorophyte) distributions may be wide and variable. They are determined either by spatial processes, as evidenced by dispersal limitation and/or historical factors, environmental filters, such as microsite variat...
| Autor principal: | Marí, Maikel L G |
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| Outros Autores: | Toledo, Jos? Julio, Nascimento, Henrique Eduardo Mendonça, Zartman, Charles Eugene |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Biotropica
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17392 |
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oai:repositorio:1-17392 |
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dspace |
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oai:repositorio:1-17392 Regional and Fine Scale Variation of Holoepiphyte Community Structure in Central Amazonian White-Sand Forests Marí, Maikel L G Toledo, Jos? Julio Nascimento, Henrique Eduardo Mendonça Zartman, Charles Eugene Community Composition Community Structure Emergence Epiphyte Legume Rainforest Tropical Forest Amazonia Aldina Heterophylla Fabaceae Orchidaceae Factors controlling holoepiphyte (plants which start and complete their life cycle on a phorophyte) distributions may be wide and variable. They are determined either by spatial processes, as evidenced by dispersal limitation and/or historical factors, environmental filters, such as microsite variation within phorophytes, and/or biotic interactions. Disentangling the importance of these classes is particularly difficult in tropical forests where phorophyte alpha-diversity is exceptionally high. We controlled for phorophyte specificity by studying the holoepiphytic communities of an emergent tree Aldina heterophylla (Fabaceae), known for its heavy epiphyte loads and dominance in Amazonian white-sand habitats, in order to quantify the importance of tree zone and geographic distance on holoepiphytes at fine (100 m2) and regional (2500 km2) scales. At regional scales, tree zone explained nearly two-thirds of the main compositional gradient, accounting for more than double that of site differences. No spatial effects were observed on holoepiphyte community structure at the fine scale as treelet communities were more dissimilar than by chance alone from their neighboring emergent phorophyte. These results suggest that microsite availability, as opposed to dispersal limitation, is the most important mechanism in structuring holoepiphyte communities of this insular forest type. © 2016 The Association for Tropical Biology and Conservation. 2020-06-15T21:42:09Z 2020-06-15T21:42:09Z 2016 Artigo https://repositorio.inpa.gov.br/handle/1/17392 10.1111/btp.12300 en Volume 48, Número 1, Pags. 70-80 Restrito Biotropica |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Community Composition Community Structure Emergence Epiphyte Legume Rainforest Tropical Forest Amazonia Aldina Heterophylla Fabaceae Orchidaceae |
| spellingShingle |
Community Composition Community Structure Emergence Epiphyte Legume Rainforest Tropical Forest Amazonia Aldina Heterophylla Fabaceae Orchidaceae Marí, Maikel L G Regional and Fine Scale Variation of Holoepiphyte Community Structure in Central Amazonian White-Sand Forests |
| topic_facet |
Community Composition Community Structure Emergence Epiphyte Legume Rainforest Tropical Forest Amazonia Aldina Heterophylla Fabaceae Orchidaceae |
| description |
Factors controlling holoepiphyte (plants which start and complete their life cycle on a phorophyte) distributions may be wide and variable. They are determined either by spatial processes, as evidenced by dispersal limitation and/or historical factors, environmental filters, such as microsite variation within phorophytes, and/or biotic interactions. Disentangling the importance of these classes is particularly difficult in tropical forests where phorophyte alpha-diversity is exceptionally high. We controlled for phorophyte specificity by studying the holoepiphytic communities of an emergent tree Aldina heterophylla (Fabaceae), known for its heavy epiphyte loads and dominance in Amazonian white-sand habitats, in order to quantify the importance of tree zone and geographic distance on holoepiphytes at fine (100 m2) and regional (2500 km2) scales. At regional scales, tree zone explained nearly two-thirds of the main compositional gradient, accounting for more than double that of site differences. No spatial effects were observed on holoepiphyte community structure at the fine scale as treelet communities were more dissimilar than by chance alone from their neighboring emergent phorophyte. These results suggest that microsite availability, as opposed to dispersal limitation, is the most important mechanism in structuring holoepiphyte communities of this insular forest type. © 2016 The Association for Tropical Biology and Conservation. |
| format |
Artigo |
| author |
Marí, Maikel L G |
| author2 |
Toledo, Jos? Julio Nascimento, Henrique Eduardo Mendonça Zartman, Charles Eugene |
| author2Str |
Toledo, Jos? Julio Nascimento, Henrique Eduardo Mendonça Zartman, Charles Eugene |
| title |
Regional and Fine Scale Variation of Holoepiphyte Community Structure in Central Amazonian White-Sand Forests |
| title_short |
Regional and Fine Scale Variation of Holoepiphyte Community Structure in Central Amazonian White-Sand Forests |
| title_full |
Regional and Fine Scale Variation of Holoepiphyte Community Structure in Central Amazonian White-Sand Forests |
| title_fullStr |
Regional and Fine Scale Variation of Holoepiphyte Community Structure in Central Amazonian White-Sand Forests |
| title_full_unstemmed |
Regional and Fine Scale Variation of Holoepiphyte Community Structure in Central Amazonian White-Sand Forests |
| title_sort |
regional and fine scale variation of holoepiphyte community structure in central amazonian white-sand forests |
| publisher |
Biotropica |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/17392 |
| _version_ |
1787141144901058560 |
| score |
11.755432 |