Results 71 to 80 of about 17,381 (194)

First Comprehensive Study of Telomere Length Measured by Southern Blot Hybridization and Oxidative Stress Across 12 Captive Marine Mammal Species

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, Satoko S. Kimura, Yuichi Mizutani, Koji Kanda, Takashi Kamio, Kensuke Yamada, Rieko Toriyama, Takaomi Ito, Ikuo Wakabayashi, Sayo Sonezaki, Yasuaki Niizuma   +10 more
wiley   +1 more source

Divergent vigilance strategies in sympatric seals facing shared predation risk

FACETS
Predator–prey dynamics shape animal behaviour and distribution, and vary across space and time. As Arctic ecosystems change, long-standing ecological relationships may shift, yet species’ behavioural responses to changing predation pressure remain poorly
Katie R.N. Florko, C-Jae C. Breiter, Stephen D. Petersen   +2 more
doaj   +1 more source

Winter behavior of Saimaa ringed seals: Non-overlapping core areas as indicators of avoidance in breeding females.

PLoS ONE, 2019
Climate change, together with increasing human activity, poses a threat to the breeding success of endangered landlocked ringed seals (Phoca hispida saimensis).
Marja Niemi, Lauri Liukkonen, Meeri Koivuniemi, Miina Auttila, Anni Rautio, Mervi Kunnasranta   +5 more
doaj   +1 more source

Pusa hispida

, 2018
<i>Pusa hispida</i> (Schreber, 1775) —Ringed Seal <p> <i>Phoca hispida</i> Schreber, 1775 p.l86 (1776 p312); Type locality- Coast of Greenland and Labrador.</p> <p> <i>Phoca hispida ochotensis</
Baccus, John T., Koprowski, John L., Jo, Yeong-Seok   +2 more
core   +1 more source

Aspalathus hispida subsp. hispida (75473)

, 2022
Kingdom: PlantaeDivision: MagnoliophytaClass: EudicotsOrder: FabalesFamily: FabaceaeScientific name: Aspalathus hispida subsp.
Bolus Herbarium (9862976)
core   +1 more source

The Patterning Cascade Model and Human Mandibular Premolar Variation

American Journal of Biological Anthropology, Volume 188, Issue 4, December 2025.
ABSTRACT Objectives The patterning cascade model (PCM) provides a predictive framework for examining crown variation and posits that tooth size and enamel knot spacing, along with surrounding inhibitory fields, strongly influence crown morphology. The aim of this study is to determine if mandibular premolar variation aligns with predictions derived ...
Molly Militello, Dori E. Kenessey, Christopher M. Stojanowski, Kathleen S. Paul   +3 more
wiley   +1 more source

Levels and trends of persistent organic pollutants in ringed seals (Phoca hispida) from Central West Greenland, with particular focus on polybrominated diphenyl ethers (PBDEs)

Environment International, 2008
Polybrominated diphenyl ethers (PBDEs) and the organochlorine compounds polychlorinated biphenyls (PCBs), DDTs, HCB, chlordane-related pesticides, HCH and toxaphene were analysed in blubber of juvenile ringed seals from Central West Greenland collected ...
Katrin Vorkamp, Frank F. Rigét, Marianne Glasius, Derek C.G. Muir, Rune Dietz   +4 more
doaj   +1 more source

Aspalathus hispida subsp. hispida (114314)

, 2022
Kingdom: PlantaeDivision: MagnoliophytaClass: EudicotsOrder: FabalesFamily: FabaceaeScientific name: Aspalathus hispida subsp.
Bolus Herbarium (9862976)
core   +1 more source

Intraspecific and temporal variability in the diet composition of female polar bears in a seasonal sea ice regime

Arctic Science, 2017
Predator foraging behaviour is influenced by a suite of intrinsic and extrinsic factors, including energetic requirements, resource availability, and habitat conditions.
Luana Sciullo, Gregory W. Thiemann, Nicholas J. Lunn, Steven H. Ferguson   +3 more
doaj   +1 more source

Spring haul-out behavior of seals in the Bering and Chukchi Seas: implications for abundance estimation [PDF]

PeerJ
Ice-associated seals rely on sea ice for a variety of activities, including pupping, breeding, molting, and resting. In the Arctic, many of these activities occur in spring (April through June) as sea ice begins to melt and retreat northward.
Josh M. London, Paul B. Conn, Stacie M. Koslovsky, Erin L. Richmond, Jay M. Ver Hoef, Michael F. Cameron, Justin A. Crawford, Andrew L. Von Duyke, Lori Quakenbush, Peter L. Boveng   +9 more
doaj   +2 more sources