Michel Vély

Global tracking of marine megafauna space use reveals how to achieve conservation targets

Ana M. M. Sequeira, Jorge Rodríguez, Sarah A. Marley, Hannah J. Calich et autres

The recent Kunming-Montreal Global Biodiversity Framework (GBF) sets ambitious goals but no clear pathway for how zero loss of important biodiversity areas and halting human-induced extinction of threatened species will be achieved. We assembled a multi-taxa tracking dataset (11 million geopositions from …

au, es, gb, us, ch, pt, fr, mx, no, se, pe, ae, qa, in, Kenya, ca, fk, ie, sa, br, re, ar, gt, bs, is, it, pf, nz, Afrique du Sud, nc, be (code pays fourni par la source)

Forensic‐Based and Environmentally Responsible Protocol to Manage Shark Fatal Bites on Humans Can Better Contribute to Conservation Needs

Éric Clua, Sandra Baksay, Hadrien Bidenbach, Blaise Bartoli et autres

ABSTRACT Although sharks are important for marine ecosystems, they still suffer culling campaigns after human fatalities. A case study from the Caribbean shows how the rapid use of several complementary and reproducible forensic techniques not only allowed the confirmation of the species …

fr, pf, kn (code pays fourni par la source)

First Evidence of Individual Sharks Involved in Multiple Predatory Bites on People

Éric Clua, C.-C. Meyer, Mark Freeman, Sandra Baksay et autres

ABSTRACT It is widely accepted that populations of terrestrial predators sometimes contain “problem individuals” that repeatedly attack humans, yet this phenomenon has never been demonstrated in sharks. Here, we present photographic and genetic evidence of individuals in populations of tiger Galeocerdo cuvier …

fr, pf, ie, us, kn, no, Côte d’Ivoire, jm (code pays fourni par la source)

Using genetic profiling for short and long term improved and eco-responsible management of shark problem individuals

Éric Clua, Carl G. Meyer, John D. C. Linnell, Sandra Baksay et autres

Abstract DNA evidence is routinely used to identify individual predators responsible for attacks on people and livestock in terrestrial settings. However, the transfer of DNA techniques to aquatic environments for similar purposes is a recent development. To date, DNA barcoding has been …

pf, us, no, Côte d’Ivoire (code pays fourni par la source)

Hunting the hunter: using genetic profiling for improved management of shark attacks on humans

Éric Clua, Carl Meyer, John D. C. Linnell, Sandra Baksay et autres

Abstract DNA evidence is routinely used to identify individual predators responsible for attacks on people and livestock in terrestrial settings. However, the use of transfer DNA techniques in aquatic environments20 for similar purposes is a recent development. To date, DNA barcoding has …

pf, us, no, Côte d’Ivoire (code pays fourni par la source)

Regional movements of satellite‐tagged whale sharks Rhincodon typus in the Gulf of Aden

Samantha Andrzejaczek, Michel Vély, Daniel Jouannet, David Rowat et autres

) movement patterns in the Western Indian Ocean, we deployed eight pop-up satellite tags at an aggregation site in the Arta Bay region of the Gulf of Tadjoura, Djibouti in the winter months of 2012, 2016, and 2017. Tags revealed movements ranging …

us, fr, Seychelles (code pays fourni par la source)

Predicting seasonal movements and distribution of the sperm whale using machine learning algorithms

Philippine Chambault, Sabrina Fossette, Mads Peter Heide‐Jørgensen, Daniel Jouannet et autres

Implementation of effective conservation planning relies on a robust understanding of the spatiotemporal distribution of the target species. In the marine realm, this is even more challenging for species rarely seen at the sea surface due to their extreme diving behavior like …

gl (code pays fourni par la source)

Density, group composition and encounter rates of humpback whales (Megaptera novaeangliae) in the eastern Comoros Archipelago (C2)

Peter J. Ersts, Jérémy J. Kiszka, Michel Vély, Howard C. Rosenbaum

The Comoros Archipelago is an assemblage of oceanic islands, banks and offshore reef systems that longitudinally span the northern MozambiqueChannel. The greater Comoros Archipelago has been designated by the IWC as Wintering sub-Region C2 for humpback whales and is currentlyconsidered data deficient. …

First circumglobal assessment of Southern Hemisphere humpback whale mitochondrial genetic variation and implications for management

HC Rosenbaum, Francine Kershaw, M. Méndez, Cristina Pomilla et autres

The description of genetic population structure over a species' geographic range can provide insights into its evolutionary history and also support effective management efforts.Assessments for globally distributed species are rare, however, requiring significant international coordination and collaboration.The global distribution of demographically discrete …

us (code pays fourni par la source)

Djibouti – a kindergarten for whale sharks?

David Rowat, Savinien T. Leblond, Bruno Pardigon, Michel Vély et autres

Background An aggregation of juvenile whale sharks were first reported off Arta, Djibouti, in 2003 and formally investigated in 2006. Standardised monitoring started in 2009 to establish the demographics of this aggregation and how it relates to the broader Red Sea and …

Seychelles, us (code pays fourni par la source)

Humpback whale (Megaptera novaeangliae) post breeding dispersal and southward migration in the western Indian Ocean

Sabrina Fossette, Mads Peter Heide‐Jørgensen, Mikkel Villum Jensen, Jérémy J. Kiszka et autres

gb, gl, us, nl (code pays fourni par la source)

Observations of individual humpback whales utilising multiple migratory destinations in the south-western Indian Ocean

Peter J. Ersts, Cristina Pomilla, Jérémy J. Kiszka, Salvatore Cerchio et autres

Movements of humpback whales Megaptera novaeangliae among breeding regions within the southwestern Indian Ocean are poorly understood. Understanding the relationships among breeding regions is critical for effective conservation and management strategies. Through systematic comparisons of molecular genotypes and both systematic and non-systematic …

us, fr, gb, Madagascar (code pays fourni par la source)