Frugivory in Canopy Plants in a Western Amazonian Forest: Dispersal Systems, Phylogenetic Ensembles and Keystone Plants.
Frugivory is a widespread mutualistic interaction in which frugivores obtain nutritional resources while favoring plant recruitment through their seed dispersal services. Nonetheless, how these complex interactions are organized in diverse communities, such as tropical forests, is not fully understo...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2015-01-01
|
| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC4619584?pdf=render |
| _version_ | 1819260804913954816 |
|---|---|
| author | Pablo R Stevenson Andrés Link Sebastian González-Caro María Fernanda Torres-Jiménez |
| author_facet | Pablo R Stevenson Andrés Link Sebastian González-Caro María Fernanda Torres-Jiménez |
| author_sort | Pablo R Stevenson |
| collection | DOAJ |
| description | Frugivory is a widespread mutualistic interaction in which frugivores obtain nutritional resources while favoring plant recruitment through their seed dispersal services. Nonetheless, how these complex interactions are organized in diverse communities, such as tropical forests, is not fully understood. In this study we evaluated the existence of plant-frugivore sub-assemblages and their phylogenetic organization in an undisturbed western Amazonian forest in Colombia. We also explored for potential keystone plants, based on network analyses and an estimate of the amount of fruit going from plants to frugivores. We carried out diurnal observations on 73 canopy plant species during a period of two years. During focal tree sampling, we recorded frugivore identity, the duration of each individual visit, and feeding rates. We did not find support for the existence of sub assemblages, such as specialized vs. generalized dispersal systems. Visitation rates on the vast majority of canopy species were associated with the relative abundance of frugivores, in which ateline monkeys (i.e. Lagothrix and Ateles) played the most important roles. All fruiting plants were visited by a variety of frugivores and the phylogenetic assemblage was random in more than 67% of the cases. In cases of aggregation, the plant species were consumed by only primates or only birds, and filters were associated with fruit protection and likely chemical content. Plants suggested as keystone species based on the amount of pulp going from plants to frugivores differ from those suggested based on network approaches. Our results suggest that in tropical forests most tree-frugivore interactions are generalized, and abundance should be taken into account when assessing the most important plants for frugivores. |
| first_indexed | 2024-12-23T19:31:44Z |
| format | Article |
| id | doaj.art-9a0a4fae02774f8bb6a8e7116017d819 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-23T19:31:44Z |
| publishDate | 2015-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-9a0a4fae02774f8bb6a8e7116017d8192022-12-21T17:33:53ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-011010e014075110.1371/journal.pone.0140751Frugivory in Canopy Plants in a Western Amazonian Forest: Dispersal Systems, Phylogenetic Ensembles and Keystone Plants.Pablo R StevensonAndrés LinkSebastian González-CaroMaría Fernanda Torres-JiménezFrugivory is a widespread mutualistic interaction in which frugivores obtain nutritional resources while favoring plant recruitment through their seed dispersal services. Nonetheless, how these complex interactions are organized in diverse communities, such as tropical forests, is not fully understood. In this study we evaluated the existence of plant-frugivore sub-assemblages and their phylogenetic organization in an undisturbed western Amazonian forest in Colombia. We also explored for potential keystone plants, based on network analyses and an estimate of the amount of fruit going from plants to frugivores. We carried out diurnal observations on 73 canopy plant species during a period of two years. During focal tree sampling, we recorded frugivore identity, the duration of each individual visit, and feeding rates. We did not find support for the existence of sub assemblages, such as specialized vs. generalized dispersal systems. Visitation rates on the vast majority of canopy species were associated with the relative abundance of frugivores, in which ateline monkeys (i.e. Lagothrix and Ateles) played the most important roles. All fruiting plants were visited by a variety of frugivores and the phylogenetic assemblage was random in more than 67% of the cases. In cases of aggregation, the plant species were consumed by only primates or only birds, and filters were associated with fruit protection and likely chemical content. Plants suggested as keystone species based on the amount of pulp going from plants to frugivores differ from those suggested based on network approaches. Our results suggest that in tropical forests most tree-frugivore interactions are generalized, and abundance should be taken into account when assessing the most important plants for frugivores.http://europepmc.org/articles/PMC4619584?pdf=render |
| spellingShingle | Pablo R Stevenson Andrés Link Sebastian González-Caro María Fernanda Torres-Jiménez Frugivory in Canopy Plants in a Western Amazonian Forest: Dispersal Systems, Phylogenetic Ensembles and Keystone Plants. PLoS ONE |
| title | Frugivory in Canopy Plants in a Western Amazonian Forest: Dispersal Systems, Phylogenetic Ensembles and Keystone Plants. |
| title_full | Frugivory in Canopy Plants in a Western Amazonian Forest: Dispersal Systems, Phylogenetic Ensembles and Keystone Plants. |
| title_fullStr | Frugivory in Canopy Plants in a Western Amazonian Forest: Dispersal Systems, Phylogenetic Ensembles and Keystone Plants. |
| title_full_unstemmed | Frugivory in Canopy Plants in a Western Amazonian Forest: Dispersal Systems, Phylogenetic Ensembles and Keystone Plants. |
| title_short | Frugivory in Canopy Plants in a Western Amazonian Forest: Dispersal Systems, Phylogenetic Ensembles and Keystone Plants. |
| title_sort | frugivory in canopy plants in a western amazonian forest dispersal systems phylogenetic ensembles and keystone plants |
| url | http://europepmc.org/articles/PMC4619584?pdf=render |
| work_keys_str_mv | AT pablorstevenson frugivoryincanopyplantsinawesternamazonianforestdispersalsystemsphylogeneticensemblesandkeystoneplants AT andreslink frugivoryincanopyplantsinawesternamazonianforestdispersalsystemsphylogeneticensemblesandkeystoneplants AT sebastiangonzalezcaro frugivoryincanopyplantsinawesternamazonianforestdispersalsystemsphylogeneticensemblesandkeystoneplants AT mariafernandatorresjimenez frugivoryincanopyplantsinawesternamazonianforestdispersalsystemsphylogeneticensemblesandkeystoneplants |