Consulta: creatorFacets:"Vigliola, Laurent"
Registros recuperados: 23
Data/hora: 06/06/2024 07:21:09

Global baselines and benchmarks for fish biomass: comparing remote reefs and fisheries closures
Provedor de dados: 5
Autores: 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&amp;Bs) are needed to evaluate the ecological status and fisheries potential of coral reefs. B&amp;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&amp;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 (&gt;15 yr closure) and remote reef areas (&gt;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

Environmental DNA reveals tropical shark diversity in contrasting levels of anthropogenic impact
Provedor de dados: 5
Autores: Bakker, Judith; Wangensteen, Owen S.; Chapman, Demian D.; Boussarie, Germain; Buddo, Dayne; Guttridge, Tristan L.; Hertler, Heidi; Mouillot, David; Vigliola, Laurent; Mariani, Stefano.
Sharks are charismatic predators that play a key role in most marine food webs. Their demonstrated vulnerability to exploitation has recently turned them into flagship species in ocean conservation. Yet, the assessment and monitoring of the distribution and abundance of such mobile species in marine environments remain challenging, often invasive and resource-intensive. Here we pilot a novel, rapid and non-invasive environmental DNA (eDNA) metabarcoding approach specifically targeted to infer shark presence, diversity and eDNA read abundance in tropical habitats. We identified at least 21 shark species, from both Caribbean and Pacific Coral Sea water samples, whose geographical patterns of diversity and read abundance coincide with geographical differences...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00416/52732/74686.pdf

Diurnal temporal patterns of the diversity and the abundance of reef fishes in a branching coral patch in New Caledonia
Provedor de dados: 5
Autores: Mallet, Delphine; Vigliola, Laurent; Wantiez, Laurent; Pelletier, Dominique.
Small-scale spatial and temporal variability in animal abundance is an intrinsic characteristic of marine ecosystems but remains largely unknown for most animals, including coral reef fishes. In this study, we used a remote autonomous unbaited video system and recorded reef fish assemblages during daylight hours, 10 times a day for 34 consecutive days in a branching coral patch of the lagoon of New Caledonia. In total, 50 031 fish observations belonging to 114 taxa, 66 genera and 31 families were recorded in 256 recorded videos. Carnivores and herbivore-detritus feeders dominated the trophic structure. We found significant variations in the composition of fish assemblages between times of day. Taxa richness and fish abundance were greater in the early...
Tipo: Text
Palavras-chave: Coral reef fish; High-frequency sampling; Patterns; Temporal variation; Underwater video.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00326/43755/45787.pdf

Temperature, selective mortality and early growth in the short-lived clupeid Spratelloides gracilis
Provedor de dados: 5
Autores: Durieux, Eric; Meekan, Mark G.; Ponton, Dominique; Vigliola, Laurent.
Six cohorts of the silver-stripe round herring Spratelloides gracilis, a fast-growing and short-lived tropical clupeid, were collected as juveniles and then as adults during austral summers from November to February in 1998–1999 and 1999–2000, using light traps in the Dampier Archipelago, Western Australia. Otolith analysis allowed backcalculation of size and growth rate at age to examine the relative influences of selective mortality and water temperature on early growth. Negative sizeselective mortality and growth-selective mortality between the juvenile and the adult stages was found only in the cohort that was the smallest and slowest growing in the period immediately following hatching. Selective mortality preferentially removed members of this cohort...
Tipo: Text
Palavras-chave: Environmental factors; Indo-Pacific region; Life-history traits; Otolith; Pelagic fishes; Size.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00008/11940/8643.pdf

Global status and conservation potential of reef sharks
Provedor de dados: 5
Autores: Macneil, M. Aaron; Chapman, Demian D.; Heupel, Michelle; Simpfendorfer, Colin A.; Heithaus, Michael; Meekan, Mark; Harvey, Euan; Goetze, Jordan; Kiszka, Jeremy; Bond, Mark E.; Currey-randall, Leanne M.; Speed, Conrad W.; Sherman, C. Samantha; Rees, Matthew J.; Udyawer, Vinay; Flowers, Kathryn I.; Clementi, Gina; Valentin-albanese, Jasmine; Gorham, Taylor; Adam, M. Shiham; Ali, Khadeeja; Pina-amargos, Fabian; Angulo-valdes, Jorge A.; Asher, Jacob; Barcia, Laura Garcia; Beaufort, Oceane; Benjamin, Cecilie; Bernard, Anthony T. F.; Berumen, Michael L.; Bierwagen, Stacy; Bonnema, Erika; Bown, Rosalind M. K.; Bradley, Darcey; Brooks, Edd; Brown, J. Jed; Buddo, Dayne; Burke, Patrick; Caceres, Camila; Cardenosa, Diego; Carrier, Jeffrey C.; Caselle, Jennifer E.; Charloo, Venkatesh; Claverie, Thomas; Clua, Eric; Cochran, Jesse E. M.; Cook, Neil; Cramp, Jessica; D'Alberto, Brooke; De Graaf, Martin; Dornhege, Mareike; Estep, Andy; Fanovich, Lanya; Farabough, Naomi F.; Fernando, Daniel; Flam, Anna L.; Floros, Camilla; Fourqurean, Virginia; Garla, Ricardo; Gastrich, Kirk; George, Lachlan; Graham, Rory; Guttridge, Tristan; Hardenstine, Royale S.; Heck, Stephen; Henderson, Aaron C.; Hertler, Heidi; Hueter, Robert; Johnson, Mohini; Jupiter, Stacy; Kasana, Devanshi; Kessel, Steven T.; Kiilu, Benedict; Kirata, Taratu; Kuguru, Baraka; Kyne, Fabian; Langlois, Tim; Ledee, Elodie J. I.; Lindfield, Steve; Luna-acosta, Andrea; Maggs, Jade; Manjaji-matsumoto, B. Mabel; Marshall, Andrea; Matich, Philip; Mccombs, Erin; Mclean, Dianne; Meggs, Llewelyn; Moore, Stephen; Mukherji, Sushmita; Murray, Ryan; Kaimuddin, Muslimin; Newman, Stephen J.; Nogues, Josep; Obota, Clay; O'Shea, Owen; Osuka, Kennedy; Papastamatiou, Yannis P.; Perera, Nishan; Peterson, Bradley; Ponzo, Alessandro; Prasetyo, Andhika; Quamar, L. M. Sjamsul; Quinlan, Jessica; Ruiz-abierno, Alexei; Sala, Enric; Samoilys, Melita; Scharer-umpierre, Michelle; Schlaff, Audrey; Simpson, Nikola; Smith, Adam N. H.; Sparks, Lauren; Tanna, Akshay; Torres, Ruben; Travers, Marie-agnes; Van Zinnicq Bergmann, Maurits; Vigliola, Laurent; Ward, Juney; Watts, Alexandra M.; Wen, Colin; Whitman, Elizabeth; Wirsing, Aaron J.; Wothke, Aljoscha; Zarza-gonzalez, Esteban; Cinner, Joshua E.
Decades of overexploitation have devastated shark populations, leaving considerable doubt as to their ecological status1,2. Yet much of what is known about sharks has been inferred from catch records in industrial fisheries, whereas far less information is available about sharks that live in coastal habitats3. Here we address this knowledge gap using data from more than 15,000 standardized baited remote underwater video stations that were deployed on 371 reefs in 58 nations to estimate the conservation status of reef sharks globally. Our results reveal the profound impact that fishing has had on reef shark populations: we observed no sharks on almost 20% of the surveyed reefs. Reef sharks were almost completely absent from reefs in several nations, and...
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00644/75627/83233.pdf

Wind-induced variability in larval retention in a coral reef system: a biophysical modelling study in the South-West Lagoon of New Caledonia
Provedor de dados: 5
Autores: Cuif, Marion; Kaplan, David; Lefevre, Jerome; Faure, Vincent Martin; Caillaud, Matthieu; Verley, Philippe; Vigliola, Laurent; Lett, Christophe.
In the present work, a biophysical dispersal model is used to understand the role of the physical environment in determining reef fish larval dispersal patterns in the South-West Lagoon of New Caledonia. We focus on a reef fish species, the humbug damselfish Dascyllus aruanus, to investigate seasonal variability of simulated larval retention at the scale of a reef patch and at the scale of the lagoon, and to explore links between larval retention and wind variability. The model shows that retention exhibits considerable temporal variability and periodically reaches values much larger than anticipated. Non-zero larval settlement occurs over a large part of the lagoon. Nevertheless, settlement values decrease quickly away from the natal reef and mean...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00170/28115/26326.pdf

Environmental DNA illuminates the dark diversity of sharks
Provedor de dados: 5
Autores: Boussarie, Germain; Bakker, Judith; Wangensteen, Owen S.; Mariani, Stefano; Bonnin, Lucas; Juhel, Jean-baptiste; Kiszka, Jeremy J.; Kulbicki, Michel; Manel, Stephanie; Robbins, William D.; Vigliola, Laurent; Mouillot, David.
In the era of "Anthropocene defaunation," large species are often no longer detected in habitats where they formerly occurred. However, it is unclear whether this apparent missing, or "dark," diversity of megafauna results from local species extirpations or from failure to detect elusive remaining individuals. We find that despite two orders of magnitude less sampling effort, environmental DNA (eDNA) detects 44% more shark species than traditional underwater visual censuses and baited videos across the New Caledonian archipelago (south-western Pacific). Furthermore, eDNA analysis reveals the presence of previously unobserved shark species in human-impacted areas. Overall, our results highlight a greater prevalence of sharks than described by traditional...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00442/55321/56837.pdf

Extent of Mangrove Nursery Habitats Determines the Geographic Distribution of a Coral Reef Fish in a South-Pacific Archipelago
Provedor de dados: 5
Autores: Paillon, Christelle; Wantiez, Laurent; Kulbicki, Michel; Labonne, Maylis; Vigliola, Laurent.
Understanding the drivers of species' geographic distribution has fundamental implications for the management of biodiversity. For coral reef fishes, mangroves have long been recognized as important nursery habitats sustaining biodiversity in the Western Atlantic but there is still debate about their role in the Indo-Pacific. Here, we combined LA-ICP-MS otolith microchemistry, underwater visual censuses (UVC) and mangrove cartography to estimate the importance of mangroves for the Indo-Pacific coral reef fish Lutjanus fulviflamma in the archipelago of New Caledonia. Otolith elemental compositions allowed high discrimination of mangroves and reefs with 83.8% and 98.7% correct classification, respectively. Reefs were characterized by higher concentrations of...
Tipo: Text
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00221/33271/35756.pdf

Isolation and no-entry marine reserves mitigate anthropogenic impacts on grey reef shark behavior
Provedor de dados: 5
Autores: Juhel, Jean-baptiste; Vigliola, Laurent; Wantiez, Laurent; Letessier, Tom B.; Meeuwig, Jessica J.; Mouillot, David.
Reef sharks are vulnerable predators experiencing severe population declines mainly due to overexploitation. However, beyond direct exploitation, human activities can produce indirect or sub-lethal effects such as behavioral alterations. Such alterations are well known for terrestrial fauna but poorly documented for marine species. Using an extensive sampling of 367 stereo baited underwater videos systems, we show modifications in grey reef shark (Carcharhinus amblyrhynchos) occurrence and feeding behavior along a marked gradient of isolation from humans across the New Caledonian archipelago (South-Western Pacific). The probability of occurrence decreased by 68.9% between wilderness areas (more than 25 hours travel time from the capital city) and impacted...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00483/59500/62369.pdf

Meeting fisheries, ecosystem function, and biodiversity goals in a human-dominated world
Provedor de dados: 5
Autores: 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
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00623/73532/72911.pdf

Low fuel cost and rising fish price threaten coral reef wilderness
Provedor de dados: 5
Autores: Januchowski‐hartley, Fraser A.; Vigliola, Laurent; Maire, Eva; Kulbicki, Michel; Mouillot, David.
Wilderness areas offer unparalleled ecosystem conditions. However, growing human populations and consumption are among factors that drive encroachment on these areas. Here, we explore the threat of small‐scale fisheries to wilderness reefs by developing a framework and modeling fluctuations in fishery range with fuel costs and fish prices. We modeled biomass of four fishery groups across the New Caledonian archipelago, and used fish and fuel prices from 2005 to 2020 to estimate the extent of exploited reefs across three fishing scenarios.  From 2012 to 2018, maximum profitable range increased from 15 to over 30 hr from the capital city, expanding to reefs previously uneconomic to fish, including a UNESCO heritage site. By 2020, over half of New Caledonian...
Tipo: Text
Palavras-chave: Coral reef conservation; Fisheries management; Reef accessibility; Small‐scale fisheries; South Pacific.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00607/71887/70585.pdf

PAMPA - Indicateurs de la Performance d’Aires Marines Protégées pour la gestion des écosystèmes côtiers, des ressources et de leurs usAges. Rapport du site Nouvelle-Calédonie
Provedor de dados: 5
Autores: Wantiez, Laurent; Pelletier, Dominique; Coutures, Emmanuel; Gamp, Elodie; Rolland, Emeline; Mallet, Delphine; Reecht, Yves; Dumas, Pascal; Jollit, Isabelle; Vigliola, Laurent.
This documents reports activities conducted within the PAMPA project for the New Caledonia case study (Noumea Marine Reserves)
Tipo: Text
Palavras-chave: Livrable; Rapport par site; Tableau de bord.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00351/46171/45873.pdf

Gravity of human impacts mediates coral reef conservation gains
Provedor de dados: 5
Autores: 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

Coral cover surveys corroborate predictions on reef adaptive potential to thermal stress
Provedor de dados: 5
Autores: Selmoni, Oliver; Lecellier, Gaël; Vigliola, Laurent; Berteaux-lecellier, Véronique; Joost, Stéphane.
As anomalous heat waves are causing the widespread decline of coral reefs worldwide, there is an urgent need to identify coral populations tolerant to thermal stress. Heat stress adaptive potential is the degree of tolerance expected from evolutionary processes and, for a given reef, depends on the arrival of propagules from reefs exposed to recurrent thermal stress. For this reason, assessing spatial patterns of thermal adaptation and reef connectivity is of paramount importance to inform conservation strategies. In this work, we applied a seascape genomics framework to characterize the spatial patterns of thermal adaptation and connectivity for coral reefs of New Caledonia (Southern Pacific). In this approach, remote sensing of seascape conditions was...
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00659/77138/78460.pdf

Complementarity of Rotating Video and Underwater Visual Census for Assessing Species Richness, Frequency and Density of Reef Fish on Coral Reef Slopes
Provedor de dados: 5
Autores: Mallet, Delphine; Wantiez, Laurent; Lemouellic, Soazig; Vigliola, Laurent; Pelletier, Dominique.
Estimating diversity and abundance of fish species is fundamental for understanding community structure and dynamics of coral reefs. When designing a sampling protocol, one crucial step is the choice of the most suitable sampling technique which is a compromise between the questions addressed, the available means and the precision required. The objective of this study is to compare the ability to sample reef fish communities at the same locations using two techniques based on the same stationary point count method: one using Underwater Visual Census (UVC) and the other rotating video (STAVIRO). UVC and STAVIRO observations were carried out on the exact same 26 points on the reef slope of an intermediate reef and the associated inner barrier reefs. STAVIRO...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00170/28132/26352.pdf

Adult and larval traits as determinants of geographic range size among tropical reef fishes
Provedor de dados: 5
Autores: Luiz, Osmar J.; Allen, Andrew P.; Robertson, D. Ross; Floeter, Sergio R.; Kulbicki, Michel; Vigliola, Laurent; Becheler, Ronan; Madin, Joshua S.
Most marine organisms disperse via ocean currents as larvae, so it is often assumed that larval-stage duration is the primary determinant of geographic range size. However, empirical tests of this relationship have yielded mixed results, and alternative hypotheses have rarely been considered. Here we assess the relative influence of adult and larval-traits on geographic range size using a global dataset encompassing 590 species of tropical reef fishes in 47 families, the largest compilation of such data to date for any marine group. We analyze this database using linear mixed-effect models to control for phylogeny and geographical limits on range size. Our analysis indicates that three adult traits likely to affect the capacity of new colonizers to survive...
Tipo: Text
Palavras-chave: Macroecology; Marine dispersal; Colonization.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00161/27240/25457.pdf

Seascape genomics reveals candidate molecular targets of heat stress adaptation in three coral species
Provedor de dados: 5
Autores: Selmoni, Oliver; Lecellier, Gaël; Magalon, Hélène; Vigliola, Laurent; Oury, Nicolas; Benzoni, Francesca; Peignon, Christophe; Joost, Stéphane; Berteaux‐lecellier, Véronique.
Anomalous heat waves are causing a major decline of hard corals around the world and threatening the persistence of coral reefs. There are, however, reefs that had been exposed to recurrent thermal stress over the years and whose corals appeared tolerant against heat. One of the mechanisms that could explain this phenomenon is local adaptation, but the underlying molecular mechanisms are poorly known. In this work, we applied a seascape genomics approach to study heat stress adaptation in three coral species of New Caledonia (southwestern Pacific) and to uncover molecular actors potentially involved. We used remote sensing data to characterize the environmental trends across the reef system, and sampled corals living at the most contrasted sites. These...
Tipo: Text
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00681/79297/81800.pdf

Marine reserves lag behind wilderness in the conservation of key functional roles
Provedor de dados: 5
Autores: D'Agata, Stephanie; Mouillot, David; Wantiez, Laurent; Friedlander, Alan M.; Kulbicki, Michel; Vigliola, Laurent.
Although marine reserves represent one of the most effective management responses to human impacts, their capacity to sustain the same diversity of species, functional roles and biomass of reef fishes as wilderness areas remains questionable, in particular in regions with deep and long-lasting human footprints. Here we show that fish functional diversity and biomass of top predators are significantly higher on coral reefs located at more than 20 h travel time from the main market compared with even the oldest (38 years old), largest (17,500 ha) and most restrictive (no entry) marine reserve in New Caledonia (South-Western Pacific). We further demonstrate that wilderness areas support unique ecological values with no equivalency as one gets closer to...
Tipo: Text
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00346/45742/45379.pdf

Bright spots among the world's coral reefs
Provedor de dados: 5
Autores: Cinner, Joshua E.; Huchery, Cindy; Macneil, M. Aaron; Graham, Nicholas A. J.; Mcclanahan, Tim R.; Maina, Joseph; Maire, Eva; Kittinger, John N.; Hicks, Christina C.; Mora, Camilo; Allison, Edward H.; D'Agata, Stephanie; Hoey, Andrew; Feary, David A.; Crowder, Larry; Williams, Ivor D.; Kulbicki, Michel; Vigliola, Laurent; Wantiez, Laurent; Edgar, Graham; Stuart-smith, Rick D.; Sandin, Stuart A.; Green, Alison L.; Hardt, Marah J.; Beger, Maria; Friedlander, Alan; Campbell, Stuart J.; Holmes, Katherine E.; Wilson, Shaun K.; Brokovich, Eran; Brooks, Andrew J.; Cruz-motta, Juan J.; Booth, David J.; Chabanet, Pascale; Gough, Charlie; Tupper, Mark; Ferse, Sebastian C. A.; Sumaila, U. Rashid; Mouillot, David.
Ongoing declines in the structure and function of the world's coral reefs(1,2) require novel approaches to sustain these ecosystems and the millions of people who depend on them(3). A presently unexplored approach that draws on theory and practice in human health and rural development(4,5) is to systematically identify and learn from the 'outliers'-places where ecosystems are substantially better ('bright spots') or worse ('dark spots') than expected, given the environmental conditions and socioeconomic drivers they are exposed to. Here we compile data from more than 2,500 reefs worldwide and develop a Bayesian hierarchical model to generate expectations of how standing stocks of reef fish biomass are related to 18 socioeconomic drivers and environmental...
Tipo: Text
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00348/45872/68023.pdf

Remote reefs and seamounts are the last refuges for marine predators across the Indo-Pacific
Provedor de dados: 5
Autores: Letessier, Tom B.; Mouillot, David; Bouchet, Phil J.; Vigliola, Laurent; Fernandes, Marjorie C.; Thompson, Chris; Boussarie, Germain; Turner, Jemma; Juhel, Jean-baptiste; Maire, Eva; Caley, M. Julian; Koldewey, Heather J.; Friedlander, Alan; Sala, Enric; Meeuwig, Jessica J.
Since the 1950s, industrial fisheries have expanded globally, as fishing vessels are required to travel further afield for fishing opportunities. Technological advancements and fishery subsidies have granted ever-increasing access to populations of sharks, tunas, billfishes, and other predators. Wilderness refuges, defined here as areas beyond the detectable range of human influence, are therefore increasingly rare. In order to achieve marine resources sustainability, large no-take marine protected areas (MPAs) with pelagic components are being implemented. However, such conservation efforts require knowledge of the critical habitats for predators, both across shallow reefs and the deeper ocean. Here, we fill this gap in knowledge across the Indo-Pacific...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00509/62107/66283.pdf

Distributions of Indo-Pacific lionfishes Pterois spp. in their native ranges: implications for the Atlantic invasion
Provedor de dados: 5
Autores: Kulbicki, Michel; Beets, James; Chabanet, Pascale; Cure, Katherine; Darling, Emily; Floeter, Sergio R.; Galzin, Rene; Green, Alison; Harmelin-vivien, Mireille; Hixon, Mark; Letourneur, Yves; De Loma, Thierry Lison; Mcclanahan, Tim; Mcilwain, Jennifer; Moutham, Gerard; Myers, Robert; O'Leary, Jennifer K.; Planes, Serge; Vigliola, Laurent; Wantiez, Laurent.
Lionfish (Pterois volitans and P. miles) have become a major concern in the western Attantie and Caribbean since their introduction in the 1980s. Invasive lionfish can reach very high population densities on coral reefs in their invaded range, yet there are few data from their native range in the Indo-Pacific for comparison. We compiled data on the geographical distribution and density of Indo-Pacific lionfishes in their native ranges from published and unpublished underwater visual censuses and field collections. We found that lionfish in their native Indo-Pacific range are unevenly distributed, with higher densities in the Indian Ocean than in the Pacific. Lionfish densities increase significantly with increasing latitude, and are significantly higher in...
Tipo: Text
Palavras-chave: Pterois; Indo-Pacific; Ecology; Visual census; Larvae; Invasive species.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00207/31781/30193.pdf

Unexpected high vulnerability of functions in wilderness areas: evidence from coral reef fishes
Provedor de dados: 5
Autores: D'Agata, Stephanie; Vigliola, Laurent; Graham, Nicholas A. J.; Wantiez, Laurent; Parravicini, Valeriano; Villeger, Sebastien; Gerard Mou-tham,; Frolla, Philippe; Friedlander, Alan M.; Kulbicki, Michel; Mouillot, David.
High species richness is thought to support the delivery of multiple ecosystem functions and services under changing environments. Yet, some species might performunique functional roles while others are redundant. Thus, the benefits of high species richness in maintaining ecosystem functioning are uncertain if functions have little redundancy, potentially leading to high vulnerability of functions. We studied the natural propensity of assemblages to be functionally buffered against loss prior to fishing activities, using functional trait combinations, in coral reef fish assemblages across unfished wilderness areas of the Indo-Pacific: Chagos Archipelago, New Caledonia and French Polynesia. Fish functional diversity in these wilderness areas is highly...
Tipo: Text
Palavras-chave: Coral reef fish; Wilderness areas; Redundancy; Baseline functional vulnerability.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00366/47680/68025.pdf

Community-wide scan identifies fish species associated with coral reef services across the Indo-Pacific
Provedor de dados: 5
Autores: Maire, Eva; Villeger, Sebastien; Graham, Nicholas A. J.; Hoey, Andrew S.; Cinner, Joshua; Ferse, Sebastian C. A.; Aliaume, Catherine; Booth, David J.; Feary, David A.; Kulbicki, Michel; Sandin, Stuart A.; Vigliola, Laurent; Mouillot, David.
Determining whether many functionally complementary species or only a subset of key species are necessary to maintain ecosystem functioning and services is a critical question in community ecology and biodiversity conservation. Identifying such key species remains challenging, especially in the tropics where many species co-occur and can potentially support the same or different processes. Here, we developed a new community-wide scan CWS) approach, analogous to the genome-wide scan, to identify fish species that significantly contribute, beyond the socio-environmental and species richness effects, to the biomass and coral cover on Indo-Pacific reefs. We found that only a limited set of species (51 out of approx. 400, = approx. 13%), belonging to various...
Tipo: Text
Palavras-chave: Ecosystem functioning; Biodiversity; Fish community; Key species; Ecosystem services; Coral reefs.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00452/56388/68019.pdf