Results 61 to 70 of about 117,676 (223)

Clade‐wide morphological and functional variation of the sauropsid columella

The Anatomical Record, EarlyView.
Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock, Serjoscha W. Evers, Tiago R. Simões, Garth M. Spellman, Daniel J. Field   +4 more
wiley   +1 more source

bearded seal

, 1969
beard nThe Newfoundland seal is what is called the hair or bearded seal.PRINTED ITEM DNE-citJoanne Garland 28 May 1969Not usedUsed IWithdrawnCard is stamped DNE-cit but does not appear in the DNE.

core  

Different shape but the same topographical complexity—The lingual gross anatomy of the Saimaa (Pusa saimensis) and Baltic ringed seals (Pusa hispida botnica)

The Anatomical Record, EarlyView.
Abstract Despite the distinctly different shapes of their tongues, the tongue gross anatomy of Saimaa ringed seal closely resembled that of Baltic ringed seal. There were no differences in the extrinsic and intrinsic tongue muscles or their associated vascularization and innervation between Saimaa and Baltic ringed seals.
Juha Laakkonen, Heini Nihtilä
wiley   +1 more source

Subsistence harvest of ringed, bearded, spotted, and ribbon seals in Alaska is sustainable

Endangered Species Research, 2019
In 2012, climate-warming related decreases in sea ice led to listings of ringed Pusa hispida and bearded seals Erignathus barbatus as threatened under the United States Endangered Species Act (ESA) prior to evidence of population declines.
MA Nelson, LT Quakenbush, BD Taras, Committee Ice Seal   +3 more
doaj   +1 more source

bearded seal

, 1966
beard nsyn. for square flipperDNE-cit WK 18 Mar 66Not usedUsed IWithdrawnCard stamped DNE-cit but contents do not appear.

core  

An accessible microfluidic perfusion platform for time‐restricted control of zebrafish embryonic patterning

Developmental Dynamics, EarlyView.
Abstract Understanding the dynamic nature of developmental networks requires live imaging techniques capable of capturing real‐time developmental processes in wild‐type and mutant embryos as they are exposed to pharmacological perturbations. A peculiar developmental patterning process in early vertebrate embryos is the sequential segmentation of ...
Mohammed Nakhuda, M. Fethullah Simsek
wiley   +1 more source

Space‐use strategies drive diet composition of Baffin Bay polar bears

Ecosphere
Polar bears (Ursus maritimus) depend on sea ice to hunt their ice‐associated prey. However, climate‐induced sea ice loss is leading to changes in space‐use strategies of polar bears, with bears in some subpopulations spending more time on land or ...
Jennifer H. Stern, Kristin L. Laidre, Erik W. Born, Øystein Wiig, Melissa A. McKinney   +4 more
doaj   +1 more source

Higher Energy Demands and Lower Body Condition in a Hot Spring: Comparing Relict Leopard Frogs at Two Thermally Contrasting Sites

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Following range‐wide decline, all remnant populations of the relict leopard frog (Rana onca) in the eastern Mojave Desert of the southwestern USA occupied geothermally influenced hot springs. In recent years, however, several large populations have been established at cold‐water sites.
Robert P. Pelletier, Michael D. Treat, Frank van Breukelen, Jef R. Jaeger   +3 more
wiley   +1 more source

Abundance and distribution of ringed and bearded seals in the Chukchi Sea: a reference for future trends

Arctic Science
Ringed (Pusa hispida) and bearded (Erignathus barbatus) seals are vulnerable to decreasing sea ice habitat in the rapidly warming Arctic. In April and May 2016, we conducted an aerial survey over the ice-covered areas of the Chukchi Sea using thermal and
Peter L. Boveng, Vladimir I. Chernook, Erin E. Moreland, Paul B. Conn, Irina S. Trukhanova, Michael F. Cameron, Cynthia L. Christman, Justin A. Crawford, Dmitry M. Glazov, Lois Harwood, Benjamin X. Hou, Stacie M. Koslovsky, Jessica M. Lindsay, Denis I. Litovka, Josh M. London, Brett T. McClintock, Nikita Platonov, Lori Quakenbush, Erin L. Richmond, Alexander Vasiliev, Andrew L. Von Duyke, Amy Willoughby   +21 more
doaj   +1 more source

Zooarchaeology of Houses and Middens: Investigating Patterns of Assemblage Composition at Early Inuit Sites Across the North American Arctic

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT This study examines faunal assemblages from paired semisubterranean houses and middens at 10 Early Inuit sites spanning the North American Arctic (ca. 1200–1500 ce) to evaluate whether local resource bases or other factors primarily structure zooarchaeological variability.
Lauren E. Y. Norman, T. Max Friesen, Sean P. A. Desjardins   +2 more
wiley   +1 more source