Results 31 to 40 of about 1,765 (210)

Skull and partial skeleton of a new pachycetine genus (Cetacea, Basilosauridae) from the Aridal Formation, Bartonian middle Eocene, of southwestern Morocco.

PLoS ONE, 2022
Pachycetus paulsonii, Pachycetus wardii, and Antaecetus aithai are middle Eocene archaeocete whales found in Europe, North America, and Africa, respectively. The three are placed in the new basilosaurid subfamily Pachycetinae.
Philip D Gingerich, Ayoub Amane, Samir Zouhri   +2 more
doaj   +1 more source

Impact of the extinct megaherbivore Steller's sea cow (Hydrodamalis gigas) on kelp forest resilience

Frontiers in Ecology and Evolution, 2022
Giant kelp forests off the west coast of North America are maintained primarily by sea otter (Enhydra lutris) and sunflower sea star (Pycnopodia helianthoides) predation of sea urchins.
Peter D. Roopnarine, Peter D. Roopnarine, Roxanne M. W. Banker, Roxanne M. W. Banker, Scott D. Sampson   +4 more
doaj   +1 more source

Estimating the Abundance of Marine Mammal Populations

Frontiers in Marine Science, 2021
Motivated by the need to estimate the abundance of marine mammal populations to inform conservation assessments, especially relating to fishery bycatch, this paper provides background on abundance estimation and reviews the various methods available for ...
Philip S. Hammond, Tessa B. Francis, Tessa B. Francis, Dennis Heinemann, Kristy J. Long, Jeffrey E. Moore, André E. Punt, Randall R. Reeves, Maritza Sepúlveda, Guðjón Már Sigurðsson, Margaret C. Siple, Gísli Víkingsson, Paul R. Wade, Rob Williams, Alexandre N. Zerbini, Alexandre N. Zerbini, Alexandre N. Zerbini   +16 more
doaj   +1 more source

New findings of Prototherium ausetanum (Mammalia, Pan-Sirenia) from paving stones in Girona (Catalonia, Spain)? [PDF]

, 2023
Taxonomic and morphological approaches on Eocene sirenians from Catalonia (Spain) benefit from a newly discovered specimen found in a quite unusual locality, the pedestrian zone in the city of Girona. Two fossil-bearing limestone slabs from middle Eocene
Hampe, Oliver, Mahlow, Kristin, Vilanova, Joan C., Voss, Manja   +3 more
core   +1 more source

The Economic Value of Shark and Ray Tourism in Indonesia and Its Role in Delivering Conservation Outcomes

Frontiers in Marine Science, 2020
As a hotspot of species diversity and fishing pressure, Indonesia is a global priority for the conservation of sharks, rays and their cartilaginous relatives (herein “sharks”).
Putu Liza Kusuma Mustika, Putu Liza Kusuma Mustika, Muhammad Ichsan, Muhammad Ichsan, Hollie Booth, Hollie Booth   +5 more
doaj   +1 more source

Using Cost-Effective Surveys From Platforms of Opportunity to Assess Cetacean Occurrence Patterns for Marine Park Management in the Heart of the Coral Triangle

Frontiers in Marine Science, 2020
For Marine Protected Areas (MPAs) to be effective in conservation their zoning and management needs to be based on scientific data. Obtaining information on spatio-temporal occurrence patterns of cetaceans can be especially challenging.
Achmad Sahri, Putu Liza Kusuma Mustika, Putu Liza Kusuma Mustika, Purwanto Purwanto, Purwanto Purwanto, Albertinka J. Murk, Meike Scheidat   +6 more
doaj   +1 more source

Health Assessment and Seroepidemiologic Survey of Potential Pathogens in Wild Antillean Manatees (Trichechus manatus manatus) [PDF]

, 2012
The Antillean manatee (Trichechus manatus manatus), a subspecies of the West Indian manatee, inhabits fresh, brackish, and warm coastal waters distributed along the eastern border of Central America, the northern coast of South America, and throughout ...
Aguirre, A.A. (Alonso), Auil Gomez, N. (Nicole), Bonde, R.K. (Robert), Kreuder Johnson, C. (Christine), Luttrell, M.P. (Page), Nielsen, K. (Klaus), Osterhaus, A.D.M.E. (Albert), Powell, J. (James), Sulzner, K. (Kathryn)   +8 more
core   +4 more sources

The bivalve Glycymeris planicostalis as a high-resolution paleoclimate archive for the Rupelian (Early Oligocene) of central Europe [PDF]

Climate of the Past, 2015
Current global warming is likely to result in a unipolar glaciated world with unpredictable repercussions on atmospheric and oceanic circulation patterns.
E. O. Walliser, B. R. Schöne, T. Tütken, J. Zirkel, K. I. Grimm, J. Pross   +5 more
doaj   +1 more source

Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa

Zoologia (Curitiba), 2010
This study describes the morphological, morphometric and ultrastructural characteristics of the Amazonian manatee Trichechus inunguis (Natterer, 1883) spermatozoon. The spermatozoa were obtained from a urine sample of an adult T.
Rodrigo S. Amaral, Carolina M. Lucci, Fernando C. W. Rosas, Vera M. F. da Silva, Sônia N. Báo   +4 more
doaj   +1 more source

Neurocranial bones are key to untangling the sea cow evolutionary tree: osteology of the skull of Sobrarbesiren cardieli (Mammalia: Pan-Sirenia) [PDF]

, 2022
The pan-sirenian Bauplan is conservative, probably owing to the constraints of adaptation to an aquatic lifestyle. Gathering morphological data from extinct forms is complex, resulting in poorly resolved phylogenies for stem pan-sirenians.
Badiola, Ainara, Canudo, José Ignacio, Díaz-Berenguer, Ester, Moreno-Azanza, Miguel   +3 more
core   +2 more sources