|
|
|
|
|
| Donati, Giulia Francesca Azzurra; Parravicini, Valeriano; Leprieur, Fabien; Hagen, Oskar; Gaboriau, Theo; Heine, Christian; Kulbicki, Michel; Rolland, Jonathan; Salamin, Nicolas; Albouy, Camille; Pellissier, Loïc. |
| Habitat dynamics interacting with species dispersal abilities could generate gradients in species diversity and prevalence of species traits when the latter are associated with species dispersal potential. Using a process‐based model of diversification constrained by a dispersal parameter, we simulated the interplay between reef habitat dynamics during the past 140 million years and dispersal, shaping lineage diversification history and assemblage composition globally. The emerging patterns from the simulations were compared to current prevalence of species traits related to dispersal for 6315 tropical reef fish species. We found a significant spatial congruence between the prevalence of simulated low dispersal values and areas with a large proportion of... |
| Tipo: Text |
Palavras-chave: Biodiversity; Dispersal; Diversification; Mechanistic models; Reef fish; Traits. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00516/62750/67136.pdf |
| |
|
|
| Polanco Fernández, Andrea; Marques, Virginie; Fopp, Fabian; Juhel, Jean‐baptiste; Borrero‐pérez, Giomar Helena; Cheutin, Marie‐charlotte; Dejean, Tony; González Corredor, Juan David; Acosta‐chaparro, Andrés; Hocdé, Régis; Eme, David; Maire, Eva; Spescha, Manuel; Valentini, Alice; Manel, Stéphanie; Mouillot, David; Albouy, Camille; Pellissier, Loïc. |
| Environmental DNA (eDNA) analysis is a revolutionary method to monitor marine biodiversity from animal DNA traces. Examining the capacity of eDNA to provide accurate biodiversity measures in species‐rich ecosystems such as coral reefs is a prerequisite for their application in long‐term monitoring. Here, we surveyed two Colombian tropical marine reefs, the island of Providencia and Gayraca Bay near Santa Marta, using eDNA and underwater visual census (UVC) methods. We collected a large quantity of surface water (30 L per filter) above the reefs and applied a metabarcoding protocol using three different primer sets targeting the 12S mitochondrial DNA, which are specific to the vertebrates Actinopterygii and Elasmobranchii. By assigning eDNA sequences to... |
| Tipo: Text |
Palavras-chave: Biodiversity; Biomonitoring; Caribbean Sea; Environmental DNA; Reef fishes; Underwater visual census. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00653/76543/77643.pdf |
| |
|
|
| Juhel, Jean‐baptiste; Marques, Virginie; Polanco Fernández, Andrea; Borrero‐pérez, Giomar H.; Mutis Martinezguerra, Maria; Valentini, Alice; Dejean, Tony; Manel, Stéphanie; Loiseau, Nicolas; Velez, Laure; Hocdé, Régis; Letessier, Tom B.; Richards, Eilísh; Hadjadj, Florine; Bessudo, Sandra; Ladino, Felipe; Albouy, Camille; Mouillot, David; Pellissier, Loïc. |
| Monitoring large marine mammals is challenging due to their low abundances in general, an ability to move over large distances and wide geographical range sizes. The distribution of the pygmy (Kogia breviceps) and dwarf (Kogia sima) sperm whales is informed by relatively rare sightings, which does not permit accurate estimates of their distribution ranges. Hence, their conservation status has long remained Data Deficient (DD) in the Red list of the International Union for Conservation of Nature (IUCN), which prevent appropriate conservation measures. Environmental DNA (eDNA) metabarcoding uses DNA traces left by organisms in their environments to detect the presence of targeted taxon, and is here proved to be useful to increase our knowledge on the... |
| Tipo: Text |
Palavras-chave: EDNA; Megafauna; Mobile species; Pelagic. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00683/79484/82076.pdf |
| |
|
|
| Manel, Stéphanie; Guerin, Pierre-edouard; Mouillot, David; Blanchet, Simon; Velez, Laure; Albouy, Camille; Pellissier, Loïc. |
| Genetic diversity is estimated to be declining faster than species diversity under escalating threats, but its spatial distribution remains poorly documented at the global scale. Theory predicts that similar processes should foster congruent spatial patterns of genetic and species diversity, but empirical studies are scarce. Using a mined database of 50,588 georeferenced mitochondrial DNA barcode sequences (COI) for 3,815 marine and 1,611 freshwater fish species respectively, we examined the correlation between genetic diversity and species diversity and their global distributions in relation to climate and geography. Genetic diversity showed a clear spatial organisation, but a weak association with species diversity for both marine and freshwater species.... |
| Tipo: Text |
|
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00609/72076/70788.pdf |
| |
|
|
| Albouy, Camille; Delattre, Valentine; Donati, Giulia; Frölicher, Thomas L.; Albouy-boyer, Severine; Rufino, Marta; Pellissier, Loïc; Mouillot, David; Leprieur, Fabien. |
| Although extinctions due to climate change are still uncommon, they might surpass those caused by habitat loss or overexploitation over the next few decades. Among marine megafauna, mammals fulfill key and irreplaceable ecological roles in the ocean, and the collapse of their populations may therefore have irreversible consequences for ecosystem functioning and services. Using a trait-based approach, we assessed the vulnerability of all marine mammals to global warming under high and low greenhouse gas emission scenarios for the middle and the end of the 21st century. We showed that the North Pacific Ocean, the Greenland Sea and the Barents Sea host the species that are most vulnerable to global warming. Future conservation plans should therefore focus on... |
| Tipo: Text |
|
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00606/71791/70280.pdf |
| |
|
|
|
