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| Parravicini, Valeriano; Casey, Jordan M.; Schiettekatte, Nina M. D.; Brandl, Simon J.; Pozas-schacre, Chloé; Carlot, Jérémy; Edgar, Graham J.; Graham, Nicholas A. J.; Harmelin-vivien, Mireille; Kulbicki, Michel; Strona, Giovanni; Stuart-smith, Rick D.. |
| Understanding species’ roles in food webs requires an accurate assessment of their trophic niche. However, it is challenging to delineate potential trophic interactions across an ecosystem, and a paucity of empirical information often leads to inconsistent definitions of trophic guilds based on expert opinion, especially when applied to hyperdiverse ecosystems. Using coral reef fishes as a model group, we show that experts disagree on the assignment of broad trophic guilds for more than 20% of species, which hampers comparability across studies. Here, we propose a quantitative, unbiased, and reproducible approach to define trophic guilds and apply recent advances in machine learning to predict probabilities of pairwise trophic interactions with high... |
| Tipo: Text |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00688/79980/82934.pdf |
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| Mcclanahan, Tim R.; Schroeder, Robert E.; Friedlander, Alan M.; Vigliola, Laurent; Wantiez, Laurent; Caselle, Jennifer E.; Graham, Nicholas A. J.; Wilson, Shaun; Edgar, Graham J.; Stuart-smith, Rick D.; Oddenyo, Remy M.; Cinner, J. E.. |
| Baselines and benchmarks (B&Bs) are needed to evaluate the ecological status and fisheries potential of coral reefs. B&Bs may depend on habitat features and energetic limitations that constrain biomass within the natural variability of the environment and fish behaviors. To evaluate if broad B&Bs exist, we compiled data on the biomass of fishes in similar to 1000 reefs with no recent history of fishing in 19 ecoregions. These reefs spanned the full longitude and latitude of Indian and Pacific Ocean reefs and included older high-compliance fisheries closures (>15 yr closure) and remote reef areas (>9 h travel time from fisheries markets). There was no significant change in biomass over the 15 to 48 yr closure period but closures had only... |
| Tipo: Text |
Palavras-chave: Baselines; Coral reef fish; Fisheries and ecological indicators; Pristine or virgin biomass; Sustainability. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00589/70064/68028.pdf |
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| Cinner, Joshua E.; Maire, Eva; Huchery, Cindy; Macneil, M. Aaron; Graham, Nicholas A. J.; Mora, Camilo; Barnes, Michele L.; Kittinger, John N.; Hicks, Christina C.; D'Agata, Stephanie; Hoey, Andrew S.; Gurney, Georgina G.; Feary, David A.; Williams, Ivor D.; Kulbicki, Michel; Vigliola, Laurent; Wantiez, Laurent; Edgar, Graham J.; Stuart-smith, Rick D.; Sandin, Stuart A.; Green, Alison; Hardt, Marah J.; Beger, Maria; Friedlander, Alan M.; Wilson, Shaun K.; Brokovich, Eran; Brooks, Andrew J.; Cruz-motta, Juan J.; Booth, David J.; Chabanet, Pascale; Gough, Charlotte; Tupper, Mark; Ferse, Sebastian C. A.; Sumaila, U. Rashid; Pardede, Shinta; Mouillot, David. |
| Coral reefs provide ecosystem goods and services for millions of people in the tropics, but reef conditions are declining worldwide. Effective solutions to the crisis facing coral reefs depend in part on understanding the context under which different types of conservation benefits can be maximized. Our global analysis of nearly 1,800 tropical reefs reveals how the intensity of human impacts in the surrounding seascape, measured as a function of human population size and accessibility to reefs ("gravity"), diminishes the effectiveness of marine reserves at sustaining reef fish biomass and the presence of top predators, even where compliance with reserve rules is high. Critically, fish biomass in high-compliance marine reserves located where human impacts... |
| Tipo: Text |
Palavras-chave: Marine reserves; Fisheries; Coral reefs; Social-ecological; Socioeconomic. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00450/56115/68021.pdf |
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| Cinner, Joshua E.; Zamborain-mason, Jessica; Gurney, Georgina G.; Graham, Nicholas A. J.; Macneil, M. Aaron; Hoey, Andrew S.; Mora, Camilo; Villéger, Sébastien; Maire, Eva; Mcclanahan, Tim R.; Maina, Joseph M.; Kittinger, John N.; Hicks, Christina C.; D’agata, Stephanie; Huchery, Cindy; Barnes, Michele L.; Feary, David A.; Williams, Ivor D.; Kulbicki, Michel; Vigliola, Laurent; Wantiez, Laurent; Edgar, Graham J.; Stuart-smith, Rick D.; Sandin, Stuart A.; Green, Alison L.; Beger, Maria; Friedlander, Alan M.; Wilson, Shaun K.; Brokovich, Eran; Brooks, Andrew J.; Cruz-motta, Juan J.; Booth, David J.; Chabanet, Pascale; Tupper, Mark; Ferse, Sebastian C. A.; Sumaila, U. Rashid; Hardt, Marah J.; Mouillot, David. |
| The worldwide decline of coral reefs necessitates targeting management solutions that can sustain reefs and the livelihoods of the people who depend on them. However, little is known about the context in which different reef management tools can help to achieve multiple social and ecological goals. Because of nonlinearities in the likelihood of achieving combined fisheries, ecological function, and biodiversity goals along a gradient of human pressure, relatively small changes in the context in which management is implemented could have substantial impacts on whether these goals are likely to be met. Critically, management can provide substantial conservation benefits to most reefs for fisheries and ecological function, but not biodiversity goals, given... |
| Tipo: Text |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00623/73532/72911.pdf |
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