Results 71 to 80 of about 523 (178)

Drone photogrammetry reveals contrasting body conditions of dugongs across the Indo‐Pacific

open access: yesRemote Sensing in Ecology and Conservation, Volume 11, Issue 6, Page 701-718, December 2025.
The monitoring of body condition has gained traction as a way to provide early warning signals of population decline, prompting conservation actions. However, the environmental and anthropogenic drivers of body condition variations are rarely investigated.
Camille Goudalier   +16 more
wiley   +1 more source

Tooth wear and dental calculus in a group of orca (Orcinus orca) stranded on the New Zealand southern coast

open access: yesJournal of the Royal Society of New Zealand, Volume 55, Issue 6, Page 2042-2059, December 2025.
ABSTRACT In 2014, a group of nine orca stranded in Te Waewae Bay, Western Southland, and their remains were collected, processed and studied in partnership with Ōraka Aparima Rūnaka. A total of 436 teeth were analysed to determine the location, type and intensity scores of tooth wear.
Carolina Loch   +8 more
wiley   +1 more source

How is the third jaw joint in whales different? Diverse modes of articulation between the jaws of whales

open access: yesJournal of Anatomy, Volume 247, Issue 6, Page 1224-1240, December 2025.
This study conducts the first comprehensive morphological investigation of the mandibular symphysis in whales. Using gross anatomical observation and CT cross‐sectional data, we describe diverse joint morphologies across 74 extant and fossil cetacean taxa. Toothed whales exhibit unfused, partially fused, or fully fused symphyses.
Rebecca J. Strauch   +2 more
wiley   +1 more source

Evolution of Sirenian Pachyosteosclerosis, a Model-casefor the Study of Bone Structure in Aquatic Tetrapods. [PDF]

open access: yes, 2010
Osteosclerosis, or inner bone compaction, and pachyostosis, or outer hyperplasy of bone cortices (swollen bones), are typical features of tetrapods secondarily adapted to life in water. These peculiarities are spectacularly exemplified by the ribs of
De Buffrénil V.   +3 more
core  

Paleontological Note: Cenozoic Vertebrates from the Gulf Coastal Plain-I [PDF]

open access: yes, 2017
This report notes two small marine Tertiary vertebrae faunas from east-central Mississippi including the first reported Oligocene sirenian from the southeast.
Jackson, Jr., Crawford G.   +1 more
core   +1 more source

On the supposed former Existence of a Sirenian

open access: yesProceedings of the Zoological Society of London, 1899
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

Occurrence of Chiorchis fabaceus (Trematoda: Cladorchiidae) in a wild Antillean manatee (Trichechus manatus manatus): New parasitological data for this imperilled sirenian [PDF]

open access: yes
: Parasites impact wildlife populations and ecosystem health, thereby demanding regular monitoring. As part of the national conservation effort to preserve the free-ranging sirenians in Colombia, a parasitological survey was conducted between 2011 and ...
Taubert, Anja   +4 more
core   +1 more source

Methodologies for paleontological field research: Early pliocene sirenian paleosite in southern Tuscany [PDF]

open access: yes, 2011
We report the preliminary description of recent discoveries of Pliocene marine fauna from Arcille (Grosseto, Italy) and application of Ground Penetrating Radar to locate fossil vertebrate.
Tinelli C.   +14 more
core  

From teeth to pad: tooth loss and development of keratinous structures in sirenians. [PDF]

open access: yesProc Biol Sci, 2023
Hautier L   +7 more
europepmc   +1 more source

Ecology and Conservation of the Sirenia: dugongs and manatees [PDF]

open access: yes, 2011
Dugongs and manatees, the only fully aquatic herbivorous mammals, live in the coastal waters, rivers and lakes of more than 80 subtropical and tropical countries.
Marsh, Helene   +2 more
core  

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