Results 21 to 30 of about 7,386,477 (299)

Revisiting animal photo‐identification using deep metric learning and network analysis

Methods in Ecology and Evolution, 2021
An increasing number of ecological monitoring programmes rely on photographic capture–recapture of individuals to study distribution, demography and abundance of species.
V. Miele, Gaspard Dussert, B. Spataro, S. Chamaillé‐Jammes, D. Allainé, C. Bonenfant   +5 more
semanticscholar   +1 more source

Artificial intelligence for right whale photo identification: from data science competition to worldwide collaboration

Mammalian Biology, 2022
Photo identification is an important tool in the conservation management of endangered species, and recent developments in artificial intelligence are revolutionizing existing workflows to identify individual animals.
C. Khan, D. Blount, J. Parham, J. Holmberg, P. Hamilton, C. Charlton, F. Christiansen, D. Johnston, W. Rayment, Steve Dawson, E. Vermeulen, V. Rowntree, K. Groch, J. Levenson, R. Bogucki   +14 more
semanticscholar   +1 more source

First insights into the population characteristics and seasonal occurrence of the great hammerhead shark, Sphyrna mokarran (Rüppell, 1837) in the Western Tuamotu archipelago, French Polynesia

Frontiers in Marine Science, 2023
The occurrence and seasonality of the Critically Endangered great hammerhead shark, Sphyrna mokarran, is data deficient in the Central Pacific region.
Tatiana Boube, Claire-Sophie Azam, Antonin Guilbert, Antonin Guilbert, Charlie Huveneers, Yannis P. Papastamatiou, Johann Mourier, José E. Trujillo, José E. Trujillo, Nastazia Femmami, Andréa Kunovsky, Florent Bersani, Enzo Laurent, Alice Bousseyroux, Thibaut Thellier, Thibaut Thellier, Yann Follin, Yann Follin, Thomas Pavy, Thomas Pavy, Virginie Jeandel, Alexander Mataarere, Manuella Burlot, Jordan Bouyeure, Béatrice Rigoreau, Laurent Rigoreau, Audrey Lenormand, Farid Chalabi, Marc Hayek, Jean-Marie Jeandel, Pierre-Louis Stenger, Pierre-Louis Stenger   +31 more
doaj   +1 more source

Asymptotic Growth of Whale Sharks Suggests Sex-Specific Life-History Strategies

Frontiers in Marine Science, 2020
Age and growth data are central to management or conservation strategies for any species. Circumstantial evidence suggests that male whale sharks (Rhincodon typus) grow to asymptotic sizes much smaller than those predicted by age and growth studies and ...
Mark G. Meekan, Brett M. Taylor, Emily Lester, Emily Lester, Luciana C. Ferreira, Ana M. M. Sequeira, Alistair D. M. Dove, Matthew J. Birt, Alex Aspinall, Kim Brooks, Michele Thums   +10 more
doaj   +1 more source

Group Size of Indo-Pacific Humpback Dolphins (Sousa chinensis): An Examination of Methodological and Biogeographical Variances

Frontiers in Marine Science, 2021
Observer-based counts and photo-identification are two well-established methods with an extensive use in cetacean studies. Using these two methods, group size has been widely reported, especially for small dolphins.
Mingming Liu, Mingming Liu, Mingming Liu, Mingli Lin, Xiaoming Tang, Xiaoming Tang, Lijun Dong, Peijun Zhang, David Lusseau, David Lusseau, Songhai Li, Songhai Li   +11 more
doaj   +1 more source

Long‐term photo‐identification study of fin whales in the Pelagos Sanctuary (NW Mediterranean) as a baseline for targeted conservation and mitigation measures

Aquatic conservation, 2022
1. Historical abundance estimates are important for establishing baselines from which trends can be determined using more recent data. Long-term studies based on photo-identification were merged and used to estimate population size, survival rate and sex
M. Zanardelli, S. Airoldi, M. Bérubé, J. Borsani, N. Di-Méglio, A. Gannier, P. Hammond, Maddalena Jahoda, G. Lauriano, Giuseppe Notarbartolo di Sciara, S. Panigada   +10 more
semanticscholar   +1 more source

Photo-Identification of Bottlenose Dolphins (Tursiops truncatus) in Tralee Bay and Brandon Bay, Co. Kerry: A Case for SAC Boundary Extension

Biology and Environment-proceedings of The Royal Irish Academy, 2022
:The Lower River Shannon is a Special Area of Conservation (SAC) with bottlenose dolphins (Tursiops truncatus) as a qualifying interest, and is one of only two SACs for this species in Ireland.
Stéphanie Lévesque, Katharina Reusch, Isabel Baker, J. O'Brien, S. Berrow   +4 more
semanticscholar   +1 more source

Origin and Persistence of Markings in a Long-Term Photo-Identification Dataset Reveal the Threat of Entanglement for Endangered Northern Bottlenose Whales (Hyperoodon ampullatus)

Frontiers in Marine Science, 2021
Photo-identification methods depend on markings that are stable over time. Using a large dataset of photographs taken over a 31-year period, we evaluate the reliability, rate of change and demographic trends in different mark types on northern bottlenose
L. Feyrer, Madison Stewart, J. Yeung, Colette Soulier, H. Whitehead   +4 more
semanticscholar   +1 more source

Sightings of Antarctic minke whales, Balaenoptera bonaerensis, near the Kiev Peninsula (West Antarctica) during the summer period of 2019

Український антарктичний журнал, 2020
Antarctic Peninsula region is experiencing one of the fastest rates of climate change on Earth. Its waters are known as important feeding grounds for the Antarctic minke whales (Balaenoptera bonaerensis).
O. Savenko
doaj   +1 more source

Survival Rates and Capture Heterogeneity of Bottlenose Dolphins (Tursiops truncatus) in the Shannon Estuary, Ireland

Frontiers in Marine Science, 2021
Adult survival is arguably the most important demographic parameter for long-lived species as it has a large impact on population growth, and it can be estimated for cetacean populations using natural markings and mark-recapture (MR) modelling.
Kim E. Ludwig, Mags Daly, Stephanie Levesque, Simon D. Berrow, Simon D. Berrow   +4 more
doaj   +1 more source