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9 results on '"Ladino, Felipe"'

1. Climate-driven global redistribution of an ocean giant predicts increased threat from shipping

Author

Womersley, Freya C., Sousa, Lara L., Humphries, Nicolas E., Abrantes, Kátya, Araujo, Gonzalo, Bach, Steffen S., Barnett, Adam, Berumen, Michael L., Lion, Sandra Bessudo, Braun, Camrin D., Clingham, Elizabeth, Cochran, Jesse E. M., de la Parra, Rafael, Diamant, Stella, Dove, Alistair D. M., Duarte, Carlos M., Dudgeon, Christine L., Erdmann, Mark V., Espinoza, Eduardo, Ferreira, Luciana C., Fitzpatrick, Richard, Cano, Jaime González, Green, Jonathan R., Guzman, Hector M., Hardenstine, Royale, Hasan, Abdi, Hazin, Fábio H. V., Hearn, Alex R., Hueter, Robert E., Jaidah, Mohammed Y., Labaja, Jessica, Ladino, Felipe, Macena, Bruno C. L., Meekan, Mark G., Morris, Jr., John J., Norman, Bradley M., Peñaherrera-Palma, Cesar R., Pierce, Simon J., Quintero, Lina Maria, Ramírez-Macías, Dení, Reynolds, Samantha D., Robinson, David P., Rohner, Christoph A., Rowat, David R. L., Sequeira, Ana M. M., Sheaves, Marcus, Shivji, Mahmood S., Sianipar, Abraham B., Skomal, Gregory B., Soler, German, Syakurachman, Ismail, Thorrold, Simon R., Thums, Michele, Tyminski, John P., Webb, D. Harry, Wetherbee, Bradley M., Queiroz, Nuno, and Sims, David W.

Published
2024
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2. Global collision-risk hotspots of marine traffic and the world’s largest fish, the whale shark

Author

Womersley, Freya C., Humphries, Nicolas E., Queiroz, Nuno, Vedor, Marisa, da Costa, Ivo, Furtado, Miguel, Tyminski, John P., Abrantes, Katya, Araujo, Gonzalo, Bach, Steffen S., Barnett, Adam, Berumen, Michael L., Lion, Sandrao Bessudo, Braun, Camrin D., Clingham, Elizabeth, Cochran, Jesse E. M., de la Parra, Rafael, Diamant, Stella, Dove, Alistair D. M., Dudgeon, Christine L., Erdmann, Mark V., Espinoza, Eduardo, Fitzpatrick, Richard, Cano, Jaime González, Green, Jonathan R., Guzman, Hector M., Hardenstine, Royale, Hasan, Abdi, Hazina, Fábio H. V., Hearn, Alex R., Hueter, Robert E., Jaidah, Mohammed Y., Labaja, Jessica, Ladino, Felipe, Macena, Bruno C. L., Morris, John J., Norman, Bradley M., Peñaherrera-Palma, Cesar, Pierce, Simon J., Quintero, Lina M., Ramírez-Macías, Dení, Reynolds, Samantha D., Richardson, Anthony J., Robinson, David P., Rohner, Christoph A., Rowat, David R. L., Sheaves, Marcus, Shivjio, Mahmood S., Sianipar, Abraham B., Skomal, Gregory B., Soler, German, Syakurachman, Ismail, Thorrold, Simon R., Webb, D. Harry, Wetherbee, Bradley M., White, Timothy D., Clavelle, Tyler, Kroodsma, David A., Thums, Michele, Ferreira, Luciana C., Meekan, Mark G., Arrowsmith, Lucy M., Lester, Emily K., Meyers, Megan M., Peel, Lauren R., Sequeira, Ana M. M., Eguíluz, Victor M., Duarte, Carlos M., and Sims, David W.

Published
2022

3. Studies of the movement ecology of sharks justify the existence and expansion of marine protected areas in the Eastern Pacific Ocean

Author

Klimley, A. Peter, Arauz, Randall, Bessudo, Sandra, Chávez, Elpis J., Chinacalle, Nicole, Espinoza, Eduardo, Green, Jonathan, Hearn, Alex R., Hoyos-Padilla, Mauricio E., Nalesso, Elena, Ketchum, James T., Fischer, Chris, Ladino, Felipe, Shillinger, George, Soler, Germán, Steiner, Todd, and Peñaherrera‑Palma, César

Published
2022
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5. Global spatial risk assessment of sharks under the footprint of fisheries

Author

Queiroz, Nuno, Humphries, Nicolas E., Couto, Ana, Vedor, Marisa, da Costa, Ivo, Sequeira, Ana M. M., Mucientes, Gonzalo, Santos, António M., Abascal, Francisco J., Abercrombie, Debra L., Abrantes, Katya, Acuña-Marrero, David, Afonso, André S., Afonso, Pedro, Anders, Darrell, Araujo, Gonzalo, Arauz, Randall, Bach, Pascal, Barnett, Adam, Bernal, Diego, Berumen, Michael L., Bessudo Lion, Sandra, Bezerra, Natalia P. A., Blaison, Antonin V., Block, Barbara A., Bond, Mark E., Bonfil, Ramón, Bradford, Russell W., Braun, Camrin D., Brooks, Edward J., Brooks, Annabelle, Brown, Judith, Bruce, Barry D., Byrne, Michael E., Campana, Steven E., Carlisle, Aaron B., Chapman, Demian D., Chapple, Taylor K., Chisholm, John, Clarke, Christopher R., Clua, Eric G., Cochran, Jesse E. M., Crochelet, Estelle C., Dagorn, Laurent, Daly, Ryan, Cortés, Daniel Devia, Doyle, Thomas K., Drew, Michael, Duffy, Clinton A. J., Erikson, Thor, Espinoza, Eduardo, Ferreira, Luciana C., Ferretti, Francesco, Filmalter, John D., Fischer, G. Chris, Fitzpatrick, Richard, Fontes, Jorge, Forget, Fabien, Fowler, Mark, Francis, Malcolm P., Gallagher, Austin J., Gennari, Enrico, Goldsworthy, Simon D., Gollock, Matthew J., Green, Jonathan R., Gustafson, Johan A., Guttridge, Tristan L., Guzman, Hector M., Hammerschlag, Neil, Harman, Luke, Hazin, Fábio H. V., Heard, Matthew, Hearn, Alex R., Holdsworth, John C., Holmes, Bonnie J., Howey, Lucy A., Hoyos, Mauricio, Hueter, Robert E., Hussey, Nigel E., Huveneers, Charlie, Irion, Dylan T., Jacoby, David M. P., Jewell, Oliver J. D., Johnson, Ryan, Jordan, Lance K. B., Jorgensen, Salvador J., Joyce, Warren, Keating Daly, Clare A., Ketchum, James T., Klimley, A. Peter, Kock, Alison A., Koen, Pieter, Ladino, Felipe, Lana, Fernanda O., Lea, James S. E., Llewellyn, Fiona, Lyon, Warrick S., MacDonnell, Anna, Macena, Bruno C. L., Marshall, Heather, McAllister, Jaime D., McAuley, Rory, Meÿer, Michael A., Morris, John J., Nelson, Emily R., Papastamatiou, Yannis P., Patterson, Toby A., Peñaherrera-Palma, Cesar, Pepperell, Julian G., Pierce, Simon J., Poisson, Francois, Quintero, Lina Maria, Richardson, Andrew J., Rogers, Paul J., Rohner, Christoph A., Rowat, David R. L., Samoilys, Melita, Semmens, Jayson M., Sheaves, Marcus, Shillinger, George, Shivji, Mahmood, Singh, Sarika, Skomal, Gregory B., Smale, Malcolm J., Snyders, Laurenne B., Soler, German, Soria, Marc, Stehfest, Kilian M., Stevens, John D., Thorrold, Simon R., Tolotti, Mariana T., Towner, Alison, Travassos, Paulo, Tyminski, John P., Vandeperre, Frederic, Vaudo, Jeremy J., Watanabe, Yuuki Y., Weber, Sam B., Wetherbee, Bradley M., White, Timothy D., Williams, Sean, Zárate, Patricia M., Harcourt, Robert, Hays, Graeme C., Meekan, Mark G., Thums, Michele, Irigoien, Xabier, Eguiluz, Victor M., Duarte, Carlos M., Sousa, Lara L., Simpson, Samantha J., Southall, Emily J., and Sims, David W.

Published
2019
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6. Genetic population dynamics of the critically endangered scalloped hammerhead shark (Sphyrna lewini) in the Eastern Tropical Pacific.

Author

Harned, Sydney P., Bernard, Andrea M., Salinas‐de‐León, Pelayo, Mehlrose, Marissa R., Suarez, Jenifer, Robles, Yolani, Bessudo, Sandra, Ladino, Felipe, López Garo, Andrés, Zanella, Ilena, Feldheim, Kevin A., and Shivji, Mahmood S.

Subjects
HAMMERHEAD sharks, POPULATION dynamics, OVERFISHING, MIGRATORY animals, GENETIC variation, HABITATS
Abstract

The scalloped hammerhead shark, Sphyrna lewini, is a Critically Endangered, migratory species known for its tendency to form iconic and visually spectacular large aggregations. Herein, we investigated the population genetic dynamics of the scalloped hammerhead across much of its distribution in the Eastern Tropical Pacific (ETP), ranging from Costa Rica to Ecuador, focusing on young‐of‐year animals from putative coastal nursery areas and adult females from seasonal aggregations that form in the northern Galápagos Islands. Nuclear microsatellites and partial mitochondrial control region sequences showed little evidence of population structure suggesting that scalloped hammerheads in this ETP region comprise a single genetic stock. Galápagos aggregations of adults were not comprised of related individuals, suggesting that kinship does not play a role in the formation of the repeated, annual gatherings at these remote offshore locations. Despite high levels of fisheries exploitation of this species in the ETP, the adult scalloped hammerheads here showed greater genetic diversity compared with adult conspecifics from other parts of the species' global distribution. A phylogeographic analysis of available, globally sourced, mitochondrial control region sequence data (n = 1818 sequences) revealed that scalloped hammerheads comprise three distinct matrilines corresponding to the three major world ocean basins, highlighting the need for conservation of these evolutionarily unique lineages. This study provides the first view of the genetic properties of a scalloped hammerhead aggregation, and the largest sample size‐based investigation of population structure and phylogeography of this species in the ETP to date. [ABSTRACT FROM AUTHOR]

Published
2022
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7. The elasmobranchs of Malpelo Flora and Fauna Sanctuary, Colombia.

Author

Bessudo, Sandra, Ladino, Felipe, Becerril‐García, Edgar Eduardo, Shepard, Charles M., Salinas‐De‐León, Pelayo, and Hoyos‐Padilla, Edgar Mauricio

Subjects
*MARINE animals, *BOTANY, *ENDANGERED species, *CHONDRICHTHYES, *SHARKS, *PROTECTED areas, *SPECIES
Abstract

Management and conservation actions in marine‐protected areas require baselines for monitoring threatened marine fauna such as elasmobranchs. This article provides evidence of the occurrence of 34 species of elasmobranchs (21 sharks and 13 batoids) in the Malpelo Flora and Fauna Sanctuary, Colombia, including five new records of sharks and three of rays. From 1987 to 2021, new records were obtained by underwater visual census using SCUBA, manned submersibles and deep‐ocean cameras to depths of up to 2211 m. Of the recorded species, 21 are considered as threatened taxa (64%) by the IUCN, making the Malpelo Flora and Fauna Sanctuary an essential conservation area for this highly threatened group of species. [ABSTRACT FROM AUTHOR]

Published
2021
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8. How many replicates to accurately estimate fish biodiversity using environmental DNA on coral reefs?

Author

Stauffer, Salomé, Jucker, Meret, Keggin, Thomas, Marques, Virginie, Andrello, Marco, Bessudo, Sandra, Cheutin, Marie‐Charlotte, Borrero‐Pérez, Giomar Helena, Richards, Eilísh, Dejean, Tony, Hocdé, Régis, Juhel, Jean‐Baptiste, Ladino, Felipe, Letessier, Tom B., Loiseau, Nicolas, Maire, Eva, Mouillot, David, Mutis Martinezguerra, Maria, Manel, Stéphanie, and Polanco Fernández, Andrea

Subjects
CORAL reefs & islands, CORALS, MARINE biodiversity, BIODIVERSITY, SPECIES diversity
Abstract

Quantifying fish species diversity in rich tropical marine environments remains challenging. Environmental DNA (eDNA) metabarcoding is a promising tool to face this challenge through the filtering, amplification, and sequencing of DNA traces from water samples. However, because eDNA concentration is low in marine environments, the reliability of eDNA to detect species diversity can be limited. Using an eDNA metabarcoding approach to identify fish Molecular Taxonomic Units (MOTUs) with a single 12S marker, we aimed to assess how the number of sampling replicates and filtered water volume affect biodiversity estimates. We used a paired sampling design of 30 L per replicate on 68 reef transects from 8 sites in 3 tropical regions. We quantified local and regional sampling variability by comparing MOTU richness, compositional turnover, and compositional nestedness. We found strong turnover of MOTUs between replicated pairs of samples undertaken in the same location, time, and conditions. Paired samples contained non‐overlapping assemblages rather than subsets of one another. As a result, non‐saturated localized diversity accumulation curves suggest that even 6 replicates (180 L) in the same location can underestimate local diversity (for an area <1 km). However, sampling regional diversity using ~25 replicates in variable locations (often covering 10 s of km) often saturated biodiversity accumulation curves. Our results demonstrate variability of diversity estimates possibly arising from heterogeneous distribution of eDNA in seawater, highly skewed frequencies of eDNA traces per MOTU, in addition to variability in eDNA processing. This high compositional variability has consequences for using eDNA to monitor temporal and spatial biodiversity changes in local assemblages. Avoiding false‐negative detections in future biomonitoring efforts requires increasing replicates or sampled water volume to better inform management of marine biodiversity using eDNA. [ABSTRACT FROM AUTHOR]

Published
2021
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9. Detection of the elusive Dwarf sperm whale (Kogia sima) using environmental DNA at Malpelo island (Eastern Pacific, Colombia).

Author

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, and Pellissier, Loïc

Subjects
SPERM whale, DNA, MARINE mammals, NATURE conservation, ISLANDS, GENETIC barcoding
Abstract

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 distribution of rare but emblematic megafauna.Retrieving eDNA from filtered surface water provides the first detection of the Dwarf sperm whale (Kogia sima) around the remote Malpelo island (Colombia).Environmental DNA collected during oceanic missions can generate better knowledge on rare but emblematic animals even in regions that are generally well sampled for other taxa. [ABSTRACT FROM AUTHOR]

Published
2021
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