Results 1 to 10 of about 602 (164)

Investigation into the causes of mortality in cetaceans and sirenian populations in the Andaman Sea, Thailand: A retrospective analysis spanning 2018–2023 [PDF]

Veterinary World
Background and Aim: Cetaceans and sirenians are endangered marine mammals that are threatened by stranding and mortality. In Thailand’s Andaman Sea, limited data exist on the causes and patterns of these events.
Chayanis Daochai, Peerapon Sornying, Narissara Keawchana, Sareepah Manmoo, Piyarat Khumraksa, Patchaporn Kaewmong, Santi Ninwat, Tipamat Upanoi, Pimwarang Sukkarun, Watcharapol Suyapoh   +9 more
doaj   +2 more sources

Comparative genomics of sirenians reveals evolution of filaggrin and caspase-14 upon adaptation of the epidermis to aquatic life [PDF]

Scientific Reports
The mammalian epidermis has evolved to protect the body in a dry environment. Genes of the epidermal differentiation complex (EDC), such as FLG (filaggrin), are implicated in the barrier function of the epidermis.
Julia Steinbinder, Attila Placido Sachslehner, Karin Brigit Holthaus, Leopold Eckhart   +3 more
doaj   +2 more sources

Sirenian genomes illuminate the evolution of fully aquatic species within the mammalian superorder afrotheria [PDF]

Nature Communications
Sirenians of the superorder Afrotheria were the first mammals to transition from land to water and are the only herbivorous marine mammals. Here, we generated a chromosome-level dugong (Dugong dugon) genome.
Ran Tian, Yaolei Zhang, Hui Kang, Fan Zhang, Zhihong Jin, Jiahao Wang, Peijun Zhang, Xuming Zhou, Janet M. Lanyon, Helen L. Sneath, Lucy Woolford, Guangyi Fan, Songhai Li, Inge Seim   +13 more
doaj   +2 more sources

Vulnerability of marine megafauna to global at-sea anthropogenic threats. [PDF]

Conserv Biol
Abstract Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened ...
VanCompernolle M, Morris J, Calich HJ, Rodríguez JP, Marley SA, Pearce JR, Abrahms B, Abrantes K, Afonso AS, Aguilar A, Agyekumhene A, Akamatsu T, Åkesson S, Alawa NG, Alfaro-Shigueto J, Anderson RC, Anker-Nilssen T, Arata JA, Araujo G, Arostegui MC, Arrizabalaga H, Arrowsmith LM, Auger-Méthé M, Avila IC, Bailleul F, Barker J, Barlow DR, Barnett A, Barrios-Garrido H, Baylis AMM, Bearzi G, Bejder L, Belda EJ, Benson SR, Benson SR, Berumen ML, Bestley S, Bezerra NPA, Blaison AV, Boehme L, Bograd SJ, Abimbola BD, Bond ME, Borrell A, Bouchet PJ, Boveng P, Braulik G, Braun CD, Brodie S, Bugoni L, Bustamante C, Campana SE, Cárdenas-Alayza S, Carmichael RH, Carroll G, Carter MID, Ceia FR, Cerchio S, Ferreira LC, Chambault P, Chapple TK, Charvet P, Chavez EJ, Chevallier D, Chiaradia A, Chilvers BL, Cimino MA, Clark BL, Clarke CR, Clay TA, Cloyed CS, Cochran JEM, Collins T, Cortes E, Cuevas E, Curnick DJ, Dann P, de Bruyn PJN, de Vos A, Derville S, Dias MP, Diaz-Lopez B, Dodge KL, Dove ADM, Doyle TK, Drymon JM, Dudgeon CL, Dutton PH, Ellenberg U, Elwen SH, Emmerson L, Eniang EA, Espinoza M, Esteban N, Mul E, Fadely BS, Fayet AL, Feare C, Ferguson SH, Feyrer LJ, Finucci B, Florko KRN, Fontes J, Fontes J, Fortuna CM, Fossette S, Fouda L, Frere E, Fuentes MMPB, Gallagher AJ, Borboroglu PG, Garrigue C, Gauffier P, Gennari E, Genov T, Germanov ES, Giménez J, Godfrey MH, Godley BJ, Goldsworthy SD, Gollock M, Carman VG, Gownaris NJ, Grecian WJ, Guzman HM, Hamann M, Hammerschlag N, Hansen ES, Harris MP, Hastie G, Haulsee DE, Hazen EL, Heide-Jørgensen MP, Hieb EE, Higdon JW, Hindell MA, Hinke JT, Hoenner X, Hofmeyr GJG, Holmes BJ, Hoyt E, Huckstadt LA, Hussey NE, Huveneers C, Irvine LG, Jabado RW, Jacoby DMP, Jaeger A, Jagielski PM, Jessopp M, Jewell OJD, Alvarado DJ, Jordan LKB, Jorgensen SJ, Kahn B, Karamanlidis AA, Kato A, Keith-Diagne LW, Kiani MS, Kiszka JJ, Kock AA, Kopf RK, Kuhn C, Kyne PM, Laidre KL, Lana FO, Lander ME, Corre ML, Lee OA, Leeney RH, Levengood AL, Levenson JJ, Libertelli M, Liu KM, Mendilaharsu ML, Loveridge A, Lowe CG, Lynch HJ, Macena BCL, Mackay AI, Madrigal-Mesén J, Mallory ML, Mangel JC, Mansfield KL, March D, Marcoux M, Marsh H, Marshall AD, Marshall AD, Mattern T, Maxwell SM, McGuire RL, McLeay L, McMahon CR, Methion S, Meyers EKM, Michelot C, Masere C, Minton G, Morales-Vela B, Mucientes G, Murua H, Nicoll MAC, Niella Y, Notarbartolo di Sciara G, Oppel S, Orgeret F, Oswald JN, Owen E, Pacoureau N, Paiva VH, Palacios DM, Panigada S, Papastamatiou YP, Parra GJ, Parsons SK, Patterson-Fraser DL, Peckham SH, Petersen SD, Pichegru L, Pierce SJ, Pipa T, Pirotta E, Pistorius P, Pollom RA, Prieto R, Prosdocimi L, Pütz K, Queiroz N, Quinn JL, Ramos JA, Raudino HC, Recalde-Salas A, Rees AF, Reina RD, Reisinger RR, Reynolds SD, Richardson AJ, Riddoch NG, Riet-Sapriza FG, Robbins JR, Robinson DP, Rodríguez A, Rogers TL, Rohner CA, Rojas-Cañizales D, Ruhomaun K, Kent CS, Sato K, Scales KL, Scheidat M, Schofield G, Serena F, Setyawan E, Shaffer SA, Shea BD, Shearer L, Sheaves M, Sherley RB, Shillinger GL, Shimada T, Silva MA, Skomal G, Smith RA, Smoothey AF, Soldo A, Southall EJ, Steinfurth A, Stewart DB, Stewart JD, Takahashi A, Tatayah V, Thalmann S, Thiebot JB, Tomás J, Torres LG, Trathan PN, Trillmich F, Ueda K, Vandeperre F, Vanstreels RET, Vedor M, Villegas-Amtmann S, Waller LJ, Waller M, Wanless S, Waples K, Watt CA, Wege M, Weir CR, Wells RS, Wensveen PJ, White TD, Whiting SD, Wiig Ø, Wildermann NE, Wiley DN, Williams JL, Williams RS, Wilson K, Witt MJ, Womersley FC, Yurkowski DJ, Zhang J, Costa DP, Duarte CM, Meekan MG, Harcourt R, Sims DW, Hays GC, Pattiaratchi C, Eguíluz VM, Sequeira AMM.   +312 more
europepmc   +2 more sources

Total evidence time-scaled phylogenetic and biogeographic models for the evolution of sea cows (Sirenia, Afrotheria) [PDF]

PeerJ, 2022
Molecular phylogenetic studies that have included sirenians from the genera Trichechus, Dugong, and Hydrodamalis have resolved their interrelationships but have yielded divergence age estimates that are problematically discordant.
Steven Heritage, Erik R. Seiffert
doaj   +3 more sources

Ultrasonographic Ocular Biometry of the Greater Caribbean Manatee (Trichechus manatus manatus). [PDF]

Vet Ophthalmol
ABSTRACT This study aimed to characterize the ocular biometry of the Trichechus manatus manatus applying B‐mode ultrasonography across different age groups. Twenty‐two animals were assessed employing a portable ultrasound device equipped with a linear transducer. Five ocular parameters were assessed: corneal thickness (CT), anterior chamber depth (ACD),
de Oliveira REM, Attademo FLN, Oliveira RKM, Dos Santos RP, de Oliveira Luna F, Mignucci-Giannoni AA, Cabrias-Contreras LJ, de Sá FB, Silva FJL, Freire ACDB, de Oliveira MF.   +10 more
europepmc   +2 more sources

Aquatic sloths (Thalassocnus) from the Miocene of Chile and the evolution of marine mammal herbivory in the Pacific Ocean [PDF]

PeerJ
The evolution of marine mammals in South America includes unique and extinct lineages found nowhere else in the world, such as the walrus-convergent whale Odobenocetops and multiple aquatic sloth species belonging to the genus Thalassocnus.
Ana M. Valenzuela-Toro, Nicholas D. Pyenson, Jorge Velez-Juarbe, Mario E. Suárez   +3 more
doaj   +3 more sources

Ancestral chromosomal signatures of Paenungulata (Afroteria) reveal the karyotype of Amazonian manatee (Trichechus inunguis, Sirenia: Trichechidae) as the oldest among American manatees [PDF]

BMC Genomics, 2023
Background Chromosomal painting in manatees has clarified questions about the rapid evolution of sirenians within the Paenungulata clade. Further cytogenetic studies in Afrotherian species may provide information about their evolutionary dynamics ...
Flávia dos Santos Tavares, Willam Oliveira da Silva, Malcolm Andrew Ferguson-Smith, Alex Garcia Cavalleiro de Macedo Klautau, Jairo Moura Oliveira, Angélica Lúcia Figueiredo Rodrigues, Gabriel Melo-Santos, Julio Cesar Pieczarka, Cleusa Yoshiko Nagamachi, Renata Coelho Rodrigues Noronha   +9 more
doaj   +2 more sources

Fossil Sirenia from the Pleistocene of Qatar: new questions about the antiquity of sea cows in the Gulf Region [PDF]

PeerJ, 2022
One of the largest and least documented populations of dugongs (Dugong dugon) resides in the coastal waters of the United Arab Emirates, and waters surrounding Saudi Arabia, Bahrain, and Qatar.
Nicholas D. Pyenson, Mehsin Al-Ansi, Clare M. Fieseler, Khalid Hassan Al Jaber, Katherine D. Klim, Jacques LeBlanc, Ahmad Mujthaba Dheen Mohamed, Ismail Al-Shaikh, Christopher D. Marshall   +8 more
doaj   +3 more sources

Sirenian pachyostosis revisited [PDF]

Swiss Journal of Palaeontology
Pachyostosis, the increase in volume of bones, has been documented in a myriad of tetrapods that secondarily adapted to the aquatic environment. However, this convergent trait has hitherto only been quantified in complete ribs and long bones.
Nicolas Wagner, Johannes Horn, Johannes von Kleist, Quentin Martinez, Gabriel S. Ferreira, Eli Amson   +5 more
doaj   +4 more sources