Long term relationship between farming damselfish, predators, competitors and benthic habitat on coral reefs of Moorea Island
| Autor: | Frédéric Bertucci, Serge Planes, Emma Gairin, Thierry Lison de Loma, William E. Feeney, Viliame Waqalevu, Gilles Siu, R. Galzin, Morgan Antoine, David Lecchini |
|---|---|
| Přispěvatelé: | Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Université des Antilles (Pôle Guadeloupe), Université des Antilles (UA), PSL Research University, EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, 58 Avenue Paul Alduy, 66860 Perpignan Cedex, France |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Conservation of Natural Resources Population dynamics Science 010603 evolutionary biology 01 natural sciences Article Polynesia Predation Animals 14. Life underwater Community ecology Damselfish Keystone species Ecosystem Population Density geography Multidisciplinary geography.geographical_feature_category biology Ecology Coral Reefs 010604 marine biology & hydrobiology Stegastes Stegastes nigricans Coral reef Biodiversity biology.organism_classification Perciformes Benthic zone Predatory Behavior [SDE]Environmental Sciences Medicine Marine protected area [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
| Zdroj: | Scientific Reports Scientific Reports, Nature Publishing Group, 2021, 11 (1), ⟨10.1038/s41598-021-94010-0⟩ Frédéric Bertucci Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021) |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-021-94010-0⟩ |
| Popis: | Understanding the processes that shape biodiversity is essential for effective environmental management. Across the world’s coral reefs, algal farming damselfish (Stegastes sp.) modify the surrounding benthic community through their creation of algae “farms”. Using a long-term monitoring dataset (2005–2019) from Moorea Island, French Polynesia, we investigated whether the density of dusky damselfish (Stegastes nigricans) is associated with benthic habitat composition, the density of predators and/or competitors, and whether the survey area was inside or outside of a Marine Protected Area (MPA). We found no evidence that benthic cover or number of competitors were associated with dusky damselfish densities, both inside and outside MPAs. In contrast, fluctuations in dusky damselfish densities were negatively associated with the density of predators (e.g. Serranidae, Muraenidae and Scorpaenidae) in the preceding year in non-MPA areas, and both within and outside of MPAs when predator densities were high (2005–2010). These results suggest that healthy predator populations may be important for regulating the abundances of keystone species, such as algal farming damselfish, especially when predator densities are high. |
| Databáze: | OpenAIRE |
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