Results 41 to 50 of about 6,937 (226)
Scholarpedia, 2015 Pinnipeds (Pinnipedia) are aquatic carnivores of the families Phocidae (true seals), Otariidae (eared seals), and Odobenidae (walruses). All pinnipeds possess prominent vibrissae (whiskers) in the facial region. Pinnipeds use their whiskers for orientation by directly touching objects and by perceiving and analyzing water movements.
Guido Dehnhardt, Wolf Hanke
openaire +1 more source
Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)
The Anatomical Record, EarlyView.Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto +3 more
wiley +1 more source
Conservation Letters, 2021 Pollution by plastic and other debris is a problem affecting the world's oceans and is increasing through time. The problem is so large that prioritizing solutions to effect meaningful change may seem overwhelming to the public and policy makers.
Lauren Roman +3 more
doaj +1 more source
Transitions of social-ecological subsistence systems in the Arctic [PDF]
, 2017 Transitions of social-ecological systems (SES) expose governance systems to new challenges. This is particularly so in the Arctic where resource systems are increasingly subjected to global warming, industrial development and globalization which ...
Clark, Douglas A. +3 more
core +4 more sources
The Anatomical Record, EarlyView.Abstract As habitat salinity markedly differs between the endangered, freshwater‐dwelling Saimaa ringed seal (Pusa saimensis Nordquist, 1899) and the brackish water‐inhabiting Baltic ringed seal (Pusa hispida botnica Gmelin, 1788), we investigated whether this difference has resulted in morphological changes to their kidneys.
Heini Nihtilä, Juha Laakkonen
wiley +1 more source
Disentangling pinniped incidental mortality in a bottom-trawl fishery with seal exclusion devices
Frontiers in Marine ScienceSeal exclusion devices (SED) fitted in trawls are recognized as the best technical measure to mitigate pinniped bycatch, but do not completely eliminate incidental mortality.
Verónica Iriarte, Andreas Winter
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Patterns of spinal motion, kinematic spaces and the land‐to‐sea transition in carnivorans
The Anatomical Record, EarlyView.Using 3D reconstructions, we quantify intervertebral joint mobility to investigate how cervical, thoracic, and lumbar vertebral regions evolved distinct kinematic roles in pinnipeds. The findings reveal lineage‐specific adaptations for swimming and highlight the functional significance of vertebral joint flexibility in ecological transitions.
Juan Miguel Esteban +3 more
wiley +1 more source
Ecology and Evolution, 2020 Predator–prey interactions are critical in understanding how communities function. However, we need to describe intraspecific variation in diet to accurately depict those interactions.
Madelyn R. Voelker +4 more
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Half a Century of Per‐ and Polyfluoroalkyl Substances in Northern Gannet Eggs: Impact of Regulations
Journal of Applied Toxicology, EarlyView.ABSTRACT Per‐ and polyfluoroalkyl substances (PFAS), known as “forever chemicals”, are persistent organic pollutants that have been widely used in the industry across the globe for many decades. Their chemical stability, bioaccumulation, and toxicity pose major environmental and health risks. This study examines temporal trends in the concentrations of
Anaïs Fournier +2 more
wiley +1 more source
Frontiers in Marine Science, 2023 The Australian fur seal (Arctocephalus pusillus doriferus, AUFS) population is still recovering from the over-exploitation of the commercial-sealing era (18th and 19th centuries).
Johanna J. Geeson +4 more
doaj +1 more source