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Characterizing the Phylogenetic Tree Community Structure of a Protected Tropical Rain Forest Area in Cameroon
Tropical rain forests, the richest terrestrial ecosystems in biodiversity on Earth are highly threatened by global changes. This paper aims to infer the mechanisms governing species tree assemblages by characterizing the phylogenetic structure of a tropical rain forest in a protected area of the Con...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4061019/ https://www.ncbi.nlm.nih.gov/pubmed/24936786 http://dx.doi.org/10.1371/journal.pone.0098920 |
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author | Manel, Stéphanie Couvreur, Thomas L. P. Munoz, François Couteron, Pierre Hardy, Olivier J. Sonké, Bonaventure |
author_facet | Manel, Stéphanie Couvreur, Thomas L. P. Munoz, François Couteron, Pierre Hardy, Olivier J. Sonké, Bonaventure |
author_sort | Manel, Stéphanie |
collection | PubMed |
description | Tropical rain forests, the richest terrestrial ecosystems in biodiversity on Earth are highly threatened by global changes. This paper aims to infer the mechanisms governing species tree assemblages by characterizing the phylogenetic structure of a tropical rain forest in a protected area of the Congo Basin, the Dja Faunal Reserve (Cameroon). We re-analyzed a dataset of 11538 individuals belonging to 372 taxa found along nine transects spanning five habitat types. We generated a dated phylogenetic tree including all sampled taxa to partition the phylogenetic diversity of the nine transects into alpha and beta components at the level of the transects and of the habitat types. The variation in phylogenetic composition among transects did not deviate from a random pattern at the scale of the Dja Faunal Reserve, probably due to a common history and weak environmental variation across the park. This lack of phylogenetic structure combined with an isolation-by-distance pattern of taxonomic diversity suggests that neutral dispersal limitation is a major driver of community assembly in the Dja. To assess any lack of sensitivity to the variation in habitat types, we restricted the analyses of transects to the terra firme primary forest and found results consistent with those of the whole dataset at the level of the transects. Additionally to previous analyses, we detected a weak but significant phylogenetic turnover among habitat types, suggesting that species sort in varying environments, even though it is not predominating on the overall phylogenetic structure. Finer analyses of clades indicated a signal of clustering for species from the Annonaceae family, while species from the Apocynaceae family indicated overdispersion. These results can contribute to the conservation of the park by improving our understanding of the processes dictating community assembly in these hyperdiverse but threatened regions of the world. |
format | Online Article Text |
id | pubmed-4061019 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-40610192014-06-20 Characterizing the Phylogenetic Tree Community Structure of a Protected Tropical Rain Forest Area in Cameroon Manel, Stéphanie Couvreur, Thomas L. P. Munoz, François Couteron, Pierre Hardy, Olivier J. Sonké, Bonaventure PLoS One Research Article Tropical rain forests, the richest terrestrial ecosystems in biodiversity on Earth are highly threatened by global changes. This paper aims to infer the mechanisms governing species tree assemblages by characterizing the phylogenetic structure of a tropical rain forest in a protected area of the Congo Basin, the Dja Faunal Reserve (Cameroon). We re-analyzed a dataset of 11538 individuals belonging to 372 taxa found along nine transects spanning five habitat types. We generated a dated phylogenetic tree including all sampled taxa to partition the phylogenetic diversity of the nine transects into alpha and beta components at the level of the transects and of the habitat types. The variation in phylogenetic composition among transects did not deviate from a random pattern at the scale of the Dja Faunal Reserve, probably due to a common history and weak environmental variation across the park. This lack of phylogenetic structure combined with an isolation-by-distance pattern of taxonomic diversity suggests that neutral dispersal limitation is a major driver of community assembly in the Dja. To assess any lack of sensitivity to the variation in habitat types, we restricted the analyses of transects to the terra firme primary forest and found results consistent with those of the whole dataset at the level of the transects. Additionally to previous analyses, we detected a weak but significant phylogenetic turnover among habitat types, suggesting that species sort in varying environments, even though it is not predominating on the overall phylogenetic structure. Finer analyses of clades indicated a signal of clustering for species from the Annonaceae family, while species from the Apocynaceae family indicated overdispersion. These results can contribute to the conservation of the park by improving our understanding of the processes dictating community assembly in these hyperdiverse but threatened regions of the world. Public Library of Science 2014-06-17 /pmc/articles/PMC4061019/ /pubmed/24936786 http://dx.doi.org/10.1371/journal.pone.0098920 Text en © 2014 Manel et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Manel, Stéphanie Couvreur, Thomas L. P. Munoz, François Couteron, Pierre Hardy, Olivier J. Sonké, Bonaventure Characterizing the Phylogenetic Tree Community Structure of a Protected Tropical Rain Forest Area in Cameroon |
title | Characterizing the Phylogenetic Tree Community Structure of a Protected Tropical Rain Forest Area in Cameroon |
title_full | Characterizing the Phylogenetic Tree Community Structure of a Protected Tropical Rain Forest Area in Cameroon |
title_fullStr | Characterizing the Phylogenetic Tree Community Structure of a Protected Tropical Rain Forest Area in Cameroon |
title_full_unstemmed | Characterizing the Phylogenetic Tree Community Structure of a Protected Tropical Rain Forest Area in Cameroon |
title_short | Characterizing the Phylogenetic Tree Community Structure of a Protected Tropical Rain Forest Area in Cameroon |
title_sort | characterizing the phylogenetic tree community structure of a protected tropical rain forest area in cameroon |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4061019/ https://www.ncbi.nlm.nih.gov/pubmed/24936786 http://dx.doi.org/10.1371/journal.pone.0098920 |
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