Results 61 to 70 of about 2,679 (207)
Allometry of the postnatal cranial ontogeny and sexual dimorphism in Otaria byronia (Otariidae)
Acta Theriologica, 2013 We studied the cranial postnatal ontogeny of Otaria byronia in order to detect sexual dimorphism in allometric terms, analyzing the rate of growth of functional variables linked to specific capacities as bite and head movements. We used 20 linear measurements to estimate allometric growth applying bivariate and multivariate analyses in females and ...
Tarnawski, Bárbara Alejandra +2 more
openaire +2 more sources
Environmental DNA, Volume 8, Issue 1, January–February 2026.Mitochondrial genomes assembled from environmental non‐intrusive fecal DNA to support non‐intrusive biomonitoring in the Southern Sea Lion Otaria byronia. Photograph by Nestor Galina, used with permission. ABSTRACT The abundance of many marine mammals is declining due to local, regional, and global climate stressors that characterize the Anthropocene ...
Juan Antonio Baeza +4 more
wiley +1 more source
Biotemas, 2013 The hypothesis that pinnipeds have a common origin gained support during the 1980s in discussions focused on the systematics of the group. However, the limited knowledge of the anatomy of several species and the frequent variation in several character ...
Daniela Sanfelice, César Drehmer
doaj +1 more source
Sleeping of the marine mammals [PDF]
, 2009 Spavanje je univerzalna pojava široko raširena među svim redovima kralješnjaka. Zbog velikih anatomskih razlika i specifičnih staništa koja pojedine skupine naseljavaju, razvili su se i raznoliki načini spavanja.
Stražić, Ivana
core +2 more sources
Do Marine Mammals Diversify More Slowly Than Non‐Marine Mammals?
Journal of Biogeography, Volume 53, Issue 1, January 2026.ABSTRACT Aim Species richness is generally lower in marine than in terrestrial ecosystems, but the reasons behind this disparity remain unclear. This study examines whether marine mammals diversify at a slower pace than their non‐marine counterparts, aiming to shed light on the factors explaining potential diversification differences among them ...
Adriana Oliver +10 more
wiley +1 more source
Cronología y dieta en la costa atlántica pampeana, Argentina [PDF]
, 2013 El objetivo de este artículo es evaluar el grado de aprovechamiento de los recursos marinos a lo largo de la historia ocupacional de la región pampeana.
Bonomo, Mariano +2 more
core +1 more source
Marine Mammal Science, Volume 42, Issue 1, January 2026.ABSTRACT Telomeres, repetitive nucleotide sequences at chromosome ends, shorten with oxidative damage and cell replication, and are increasingly used as biomarkers of stress and physiological state. Despite this potential, telomere length (TL) in marine mammals has been measured using Southern blot hybridization in only a few cases, often from ...
Haruka Nakajin +10 more
wiley +1 more source
Frontiers in Marine Science, 2018 Present study aimed to characterize gastrointestinal parasites and culturable bacteria from free-living South American sea lions (Otaria flavescens) inhabiting waters of Comau Fjord, Patagonia, Chile.
Carlos Hermosilla +11 more
doaj +1 more source
Catalog of Osteological Collections of Aquatic Mammals from Mexico [PDF]
, 1991 This paper compiles available information on osteological and other anatomical specimens of at least 51 species of aquatic mammals (34 extant, one recently extinct and 16 fossil) collected in Mexico between 1868 and 1990 and housed in 29 scientific ...
Vidal, Omar
core
Analysing the natural population growth of a large marine mammal after a depletive harvest [PDF]
, 2017 An understanding of the underlying processes and comprehensive history of population growth after a harvest-driven depletion is necessary when assessing the long-term effectiveness of management and conservation strategies.
Crespo, Enrique Alberto +8 more
core +1 more source