Results 11 to 20 of about 1,581 (176)

Morphology and function of pinniped necks: The long and short of it. [PDF]

open access: yesAnat Rec (Hoboken)
Abstract Terrestrial vertebrates from at least 30 distinct lineages in both extinct and extant clades have returned to aquatic environments. With these transitions came numerous morphological adaptations to accommodate life in water. Relatively little attention has been paid to the cervical region when tracking this transition.
Keller J   +3 more
europepmc   +2 more sources

Novel Approach to Inter-Onset-Interval Ratio Uncovers Music-Like Rhythmic Patterns in Budgerigar (Melopsittacus undulatus) Warble Song. [PDF]

open access: yesAnn N Y Acad Sci
Recent work on non‐human animal vocalizations has offered new insights into rhythmicity. In an attempt to improve upon methods commonly used in animal rhythm research, we investigated the rhythmic structure of budgerigar song. Our proposed statistical approach showed rhythmicity in human music but not language, and uncovered non‐random structured ...
van der Aa J   +3 more
europepmc   +2 more sources

Convergent evolution of the gut microbiome in marine carnivores. [PDF]

open access: yesEcol Evol, 2022
To date, the question of whether marine habitats surpass phylogeny to drive the convergent evolution of the gut microbiome in marine carnivores has not been answered. Thus, in the present study, we investigated and compared the published gut microbiome data (16S rRNA) of four marine carnivores, five terrestrial carnivores, and seven terrestrial ...
Wang X   +8 more
europepmc   +2 more sources

Targeted Nutritional Metabolomic Analysis of Marine Species (Tursiops truncatus, Phoca vitulina, Otaria flavescens and Pygoscelis papua). [PDF]

open access: yesVet Med Sci
This study profiles the nutritional metabolomes of four marine species. Pygoscelis papua showed higher glucose, triglycerides, uric acid, and cholesterol, but lower albumin, total protein, urea, and inorganic phosphorus compared to others. Distinct metabolomic differences were also observed between T. truncatus and O.
Llobat L   +3 more
europepmc   +2 more sources

The better to eat you with: the comparative feeding morphology of phocid seals (Pinnipedia, Phocidae) [PDF]

open access: yesJournal of Anatomy, 2015
AbstractOne adaptation crucial to the survival of mammalian lineages that secondarily transitioned from land to water environments was the ability to capture and consume prey underwater. Phocid seals have evolved diverse feeding strategies to feed in the marine environment, and the objectives of this study were to document the specialized feeding ...
Sarah S, Kienle, Annalisa, Berta
openaire   +2 more sources

A critical revision of the fossil record, stratigraphy and diversity of the Neogene seal genus Monotherium (Carnivora, Phocidae) [PDF]

open access: yes, 2018
Historically, Monotherium had been one of the few genera of extinct Phocidae (true seals) that served as a wastebin taxon. Consequently, it did neither aid in understanding phylogenetic relationships of extinct Phocidae, nor in understanding seal ...
Dewaele, Leonard   +2 more
core   +2 more sources

Foca monje – Monachus monachus (Hermann, 1779) [PDF]

open access: yes, 2017
Mamíferos - Orden Pinnipedia - Familia Phocidaeen la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 29-11-2013A comprehensive review of the natural history of the Mediterranean Monk Seal Monachus
Salvador Milla, Alfredo
core   +2 more sources

Exceptions to the rule: Relative roles of time, diversification rates and regional energy in shaping the inverse latitudinal diversity gradient

open access: yesGlobal Ecology and Biogeography, Volume 31, Issue 9, Page 1794-1809, September 2022., 2022
Abstract Aim Inverse latitudinal diversity gradients (i‐LDGs), whereby regional richness peaks outside the tropics, have rarely been investigated, and their causes remain unclear. Here, we investigate three prominent explanations, postulating that species‐rich regions have had: (1) longer time to accumulate species; (2) faster diversification; and (3 ...
Felipe O. Cerezer   +3 more
wiley   +1 more source

Numerical anomalies in the dentition of southern fur seals and sea lions (Pinnipedia: Otariidae) [PDF]

open access: yesZoologia (Curitiba), 2010
Cases of dental agenesis, supernumerary teeth and dental losses are presented in three species of South American Otariids: Arctocephalus australis (Zimmermann, 1783), A. tropicalis (Gray, 1872) and Otaria flavescens (Shaw, 1800). For the first time, congenital and acquired dental anomalies were comparatively diagnosed in skull samples from southern ...
Loch, Carolina   +2 more
openaire   +4 more sources

Determination of optimal flight altitude to minimise acoustic drone disturbance to wildlife using species audiograms

open access: yesMethods in Ecology and Evolution, Volume 12, Issue 11, Page 2196-2207, November 2021., 2021
Abstract Unmanned aerial vehicles (UAVs) are increasingly important in wildlife data collection but concern over wildlife disturbance has led several countries to ban their use in National Parks. Disturbance is an animal welfare concern and impedes scientific data collection through provoking aberrant behaviour.
Isla Duporge   +8 more
wiley   +1 more source

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