Results 1 to 10 of about 3,049 (188)

Eye morphology of Guiana dolphins (Sotalia guianensis) and Clymene dolphins (Stenella clymene)

Anais da Academia Brasileira de Ciências, 2022
Recent studies showed that vision and hearing in dolphins are mechanisms for perception of the environment, and transmission of information among individuals.
FERNANDA M. RODRIGUES, FABRICIO B. DE SÁ, PABLO H. LANGUIDEY, JOCIERY E. VERGARA-PARENTE, JULIANA P. GUIMARÃES   +4 more
doaj   +5 more sources

Phylogenetic status and timescale for the diversification of Steno and Sotalia dolphins.

PLoS ONE, 2011
Molecular data have provided many insights into cetacean evolution but some unsettled issues still remain. We estimated the topology and timing of cetacean evolutionary relationships using bayesian and maximum likelihood analyses of complete ...
Haydée A Cunha, Lucas C Moraes, Bruna V Medeiros, José Lailson-Brito, Vera M F da Silva, Antonio M Solé-Cava, Carlos G Schrago   +6 more
doaj   +5 more sources

Who Is in Handicrafts: Tooth Morphology and Age Determination as Tools to Assess Vulnerable Dolphins Sotalia spp. Supplying the Trade of Artisanal Charms in Brazil

Frontiers in Marine Science, 2022
In Brazil, dolphins’ body parts are commonly used as traditional amulets, named as love-charms, while dolphins’ teeth are commercialized in handcrafted necklaces and bracelets.
Greicy F. Ruenes, Greicy F. Ruenes, Greicy F. Ruenes, Larissa R. de Oliveira, Larissa R. de Oliveira, Renata Emin-Lima, Renata Emin-Lima, Alexandra Fernandes Costa, Alexandra Fernandes Costa, Fernanda Löffler Niemeyer Attademo, Fábia de Oliveira Luna, Salvatore Siciliano, Salvatore Siciliano, Salvatore Siciliano   +13 more
doaj   +1 more source

Population Genetics of Franciscana Dolphins (Pontoporia blainvillei): Introducing a New Population from the Southern Edge of Their Distribution [PDF]

, 2015
Due to anthropogenic factors, the franciscana dolphin, Pontoporia blainvillei, is the most threatened small cetacean on the Atlantic coast of South America.
A Dornburg, AB Sellas, AE Dizon, AJ Drummond, Alfredo Daniel Vitullo, APM Di Beneditto, AR Hoelzel, AR Hoelzel, AR Hoelzel, AR Rogers, AR Rogers, AR Rogers, Cristina Beatriz Dejean, Crowe GM O’Corry, D Charlesworth, D Posada, D Posada, E Valsecchi, EA Crespo, EA Crespo, EA Crespo, ER Secchi, ER Secchi, ER Secchi, ER Secchi, ER Secchi, F Rousset, F Tajima, GP Donovan, H Hamilton, HA Cunha, HA Lessios, HC Harpending, HJ Bandelt, HL Cappozzo, Humberto Luis Cappozzo, IC Ansmann, J Sambrook, JL Bossart, JL Jensen, JR Franklin, Juan Ignacio Túnez, KJ Fullard, KM Parsons, L Chen, L Excoffier, L Xu, LD Adams, M Failla, M Lázaro, M Mendez, M Mendez, MA Larkin, María Constanza Gariboldi, María Fernanda Negri, Mauricio Failla, MF Negri, N Ray, NJ Ouborg, P Berggren, P Bordino, P Bordino, P Librado, P Mardulyn, PE Rosel, PG Meirmans, R Frankham, R Nielsen, RS Waples, RS Wells, S Caballero, S Schneider, Sergios-Orestis Kolokotronis, SYW Ho, SYW Ho, SYW Ho, TD Kocher, TD Kocher, TL King, Urrutia P Costa, WS Grant, YX Fu   +81 more
core   +13 more sources

Phylogeny and adaptive evolution of the brain-development gene microcephalin (MCPH1) in cetaceans. [PDF]

, 2011
BACKGROUND: Representatives of Cetacea have the greatest absolute brain size among animals, and the largest relative brain size aside from humans. Despite this, genes implicated in the evolution of large brain size in primates have yet to be surveyed in ...
Clark, Clay, Gatesy, John, McGowen, Michael R, Montgomery, Stephen H   +3 more
core   +6 more sources

First record of a white rough-toothed dolphin (Steno bredanensis) off West Africa including notes on rough-toothed dolphin surface behaviour [PDF]

, 2010
In June 2009, a white rough-toothed dolphin (Steno bredanensis) calf was photographed in a group of at least 50 dolphins in the southern Gulf of Guinea, 95 nauticol miles off the Gabon coast (01°45'S 007°29'E), West Africa. Reports of unusually pigmented
Boer, M.N., de
core   +6 more sources

Anomalias ósseas congênitas em Sotalia guianensis (Mammalia, Cetacea, Delphinidae) da costa centro-norte do Estado do Rio de Janeiro Congenital bone defects in Guiana dolphin, Sotalia guianensis (Mammalia, Cetacea, Delphinidae) in the northcentral coast of Rio de Janeiro State, Brazil

Pesquisa Veterinária Brasileira, 2010
Carcaças de botos-cinza Sotalia guianensis (van Bénéden, 1864) foram recuperadas entre 20 de agosto de 2001 e 13 de fevereiro de 2006, na costa centro-norte fluminense. A maior parte delas (85%) entre Barra de São João (22º35'S 41º59'W) e Quissamã (22º06'
Maíra Laeta, Sheila M.F.M. Souza, Salvatore Siciliano   +2 more
doaj   +1 more source

ASOCIACIONES ENTRE AVES MARINAS Y SOTALIA GUIANENSIS EN EL SUR DEL GOLFO DE VENEZUELA

Caldasia, 2015
Las asociaciones entre aves marinas y mamíferos marinos es un evento común en todos los mares y océanos del mundo. Muchos autores han denominado estas asociaciones como relaciones comensalistas, oportunistas o parasitarias, según el efecto que dicha ...
NÍNIVE ESPINOZA-RODRÍGUEZ, JOANMYRA CARRASQUERO, KAREEN DE TURRIS-MORALES, GABRIELA DELGADO-ORTEGA, HÉCTOR BARRIOS-GARRIDO   +4 more
doaj   +1 more source

Guiana Dolphin Unusual Mortality Event and Link to Cetacean Morbillivirus, Brazil

Emerging Infectious Diseases, 2018
During November–December 2017, a mass die-off of Guiana dolphins (Sotalia guianensis) began in Rio de Janeiro, Brazil. Molecular and pathologic investigations on 20 animals indicated that cetacean morbillivirus played a major role.
Kátia R. Groch, Elitieri B. Santos-Neto, Josué Díaz-Delgado, Joana M.P. Ikeda, Rafael R. Carvalho, Raissa B. Oliveira, Emi B. Guari, Tatiana L. Bisi, Alexandre F. Azevedo, José Lailson-Brito, José L. Catão-Dias   +10 more
doaj   +1 more source

Descrição do comportamento de superfície do boto cinza, Sotalia guianensis, na Praia de Pipa - RN Description of the surface behaviour of marine tucuxi, Sotalia guianensis, at Pipa Beach - RN

Psicologia: Reflexão e Crítica, 2008
O estudo do comportamento animal é uma área de pesquisa consolidada, que cresceu e se diversificou em vários países e que deu origem a disciplinas e abordagens de investigação, como a Etologia, a Ecologia Comportamental, a Neuroecologia, a Psicologia e a
Lídio França do Nascimento, Priscila Izabel A. P. Medeiros, Maria Emilia Yamamoto   +2 more
doaj   +1 more source