Results 11 to 20 of about 90,552 (301)

Semi-automated photo-identification of Bahamian Racers (Cubophis vudii vudii)

Acta Herpetologica, 2021
Photo-identification is a non-invasive option for mark-recapture. Here, we tested the effectiveness of APHIS, a semi-automated photo-identification software, to distinguish between individual Bahamian Racers (Cubophis vudii vudii) on the island of ...
Sebastian Hoefer, Andreu Rotger, Sophie Mills, Nathan J. Robinson   +3 more
doaj   +3 more sources

Photo identification laws and perceptions of electoral fraud [PDF]

Research & Politics, 2021
Photo identification (ID) laws are often passed on the premise that they will prevent voter fraud and/or reduce perceptions of electoral fraud. The impact of ID laws on perceptions of electoral fraud remains unsettled and is complicated by widespread ...
Kyle Endres, Costas Panagopoulos
doaj   +3 more sources

Underwater photo-identification of sperm whales (Physeter macrocephalus) off Mauritius [PDF]

Marine Biology Research, 2022
plement relevant conservation plans in the marine realm.
Véronique, Sarano, François, Sarano, Justine, Girardet, Axel, Preud’homme, Hugues, Vitry, René, Heuzey, Marion, Sarano, Fabienne, Delfour, Hervé, Glotin, Olivier, Adam, Bénédicte, Madon, Jean-Luc, Jung   +11 more
openaire   +2 more sources

Spot the match – wildlife photo-identification using information theory [PDF]

Frontiers in Zoology, 2007
AbstractBackgroundEffective approaches for the management and conservation of wildlife populations require a sound knowledge of population demographics, and this is often only possible through mark-recapture studies. We applied an automated spot-recognition program (I3S) for matching natural markings of wildlife that is based on a novel information ...
Speed, C., Meekan, M., Bradshaw, C.
openaire   +4 more sources

Surfacing rates, swim speeds, and patterns of movement of Antarctic blue whales

Frontiers in Marine Science, 2023
During three surveys in the austral summers of 2013, 2015, 2019, data on Antarctic blue whale blow rates, dive times, swim speeds, and broadscale movements were collected using video photogrammetric tracking and intra-voyage photo-identification. A total
Susannah V. Calderan, Susannah V. Calderan, Russell Leaper, Russell Leaper, Virginia Andrews-Goff, Brian S. Miller, Paula A. Olson, Paula A. Olson, M. V. Reyes Reyes, M. V. Reyes Reyes, M. V. Reyes Reyes, Elanor Bell, Michael C. Double   +12 more
doaj   +1 more source

Computer‐aided photo‐identification of a rare stingray, Megatrygon microps [PDF]

Journal of Fish Biology, 2020
AbstractA protocol for photo‐identification of individual Megatrygon microps has been defined. One hundred and four identification photographs were taken between 2005 and 2019. Spot patterns on the dorsal surface were used to identify individuals. Unique scarring on eight M.
Keeping, J.A., Reeve‐Arnold, K.E., Burns, N.M., Catarina, N., Bailey, D.M., McNeill, D.C.   +5 more
openaire   +2 more sources

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

Laser photogrammetry reveals variation in growth and early survival in free-ranging bottlenose dolphins [PDF]

, 2017
Acknowledgements Many thanks to the Chicago Zoological Society team for their assistance during photo-identification surveys in Sarasota, Florida and the Scottish Marine Animal Stranding Scheme and University of North Carolina Wilmington Marine Mammal ...
Barton, T. R., Cheney, B, Thompson, P. M., Wells, R. S.   +3 more
core   +1 more source

Distribution and Demographics of Marine Mammals in SOCAL Through Photo-Identification, Genetics, and Satellite Telemetry: A Summary of Surveys Conducted 1 July 2011-15 June 2012 [PDF]

, 2012
Prepared for: Chief of Naval Operations, Energy and Environmental Readiness Division, Washington, D.C.Results from the second year of a three-year project investigating the distribution, demographics, and behavior of cetaceans in the US Navy’s Southern ...
Falcone, Erin A., Schorr, Gregory S.
core   +2 more sources

Long-Term Population and Distribution Dynamics of an Endangered Irrawaddy Dolphin Population in Balikpapan Bay, Indonesia in Response to Coastal Development

Frontiers in Marine Science, 2020
Worldwide, cetaceans are impacted by human activities, and those populations that occur in shallow-nearshore habitats are particularly vulnerable. We present the results of the first long-term study on the responses of a coastal population of endangered ...
Danielle Kreb, Stanislav Lhota, Lindsay Porter, Alexandra Redman, Imelda Susanti, Milan Lazecky   +5 more
doaj   +1 more source