Results 31 to 40 of about 12,180 (220)

Investigation of olfaction of gray and harp seals by the operant training method

open access: yesVestnik MGTU, 2018
The results of studying the possibility of producing a motor conditioned reflex in the gray and harp seals on the smell of an object and the ability of experimental seals to differentiate certain odours have been presented.
Litvinov Yu. V. , Pakhomov M. V.
doaj   +1 more source

Distribution and habitat characteristics of pinnipeds and polar bears in the Svalbard Archipelago, 2005–2018

open access: yesPolar Research, 2021
This study presents comprehensive mapping of the current distribution of pinnipeds and polar bears (Ursus maritimus) around Svalbard based on a regional marine mammal sightings programme and explores time-trends (2005–2018).
Olof Bengtsson   +4 more
doaj   +1 more source

Establishing the relative importance of sympatric definitive hosts in the transmission of the sealworm, Pseudoterranova decipiens: a host-community approach

open access: yesNAMMCO Scientific Publications, 2001
The importance of a given host to a particular parasite can be determined according to three different criteria: host preference, host physiological suitability and host contribution to transmission. Most studies on the sealworm Pseudoterranova decipiens
F Javier Aznar   +3 more
doaj   +1 more source

Arctic seals as tracers of environmental and ecological change

open access: yesLimnology and Oceanography Letters, 2021
Knowledge of species trophic position (TP) is an essential component of ecosystem management. Determining TP from stable nitrogen isotopes (δ15N) in predators requires understanding how these tracers vary across environments and how they relate to ...
Camille de la Vega   +12 more
doaj   +1 more source

Spartan Daily, October 21, 1980 [PDF]

open access: yes, 1980
Volume 75, Issue 36https://scholarworks.sjsu.edu/spartandaily/6672/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core   +3 more sources

The role of sand lances (Ammodytes sp.) in the Northwest Atlantic ecosystem: a synthesis of current knowledge with implications for conservation and management [PDF]

open access: yes, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Staudinger, M. D., Goyert, H., Suca, J. J., Coleman, K., Welch, L., Llopiz, J.
Altman, Irit   +23 more
core   +1 more source

The ecological and behavioral significance of short-term food caching in polar bears (Ursus maritimus)

open access: yesArctic Science, 2020
The paucity of observations of wild polar bears (Ursus maritimus) caching of food (including hoarding, i.e., burying and remaining with a kill for up to a few days) has led to the conclusion that such behavior does not occur or is negligible in this ...
Ian Stirling   +3 more
doaj   +1 more source

Developments in the Quantitative Assessment of Welfare Outcomes in Hunted Mammals Subject to Shooting

open access: yesNAMMCO Scientific Publications, 2022
Knowledge gaps surrounding animal welfare assessment in hunted terrestrial wild mammals and seals were highlighted in the reviews by Knudsen (2005) and EFSA (2007).
Samuel D. G. Smith, Kathrine A. Ryeng
doaj   +3 more sources

Interactions between seals and salmon fisheries in Tana River and Tanafjord, Finnmark, North Norway, and possible consequences for the harbour seal Phoca vitulina

open access: yesFauna Norvegica, 1997
In the 1820’s, a relatively large harbour seal population may have inhabited the Tana River Estuary. Due to heavy persecution, especially in the 1920’s and 1930’s, it was reduced dramatically, and today there are probably less than 40 individuals left ...
Gunnar Henriksen, Kjell Moen
doaj   +1 more source

Broadening the semiaquatic scene: Quantification of long bone microanatomy across pinnipeds

open access: yesThe Anatomical Record, EarlyView.
Abstract Investigations of bone microanatomy are commonly used to explore lifestyle strategies in vertebrates. While distinct microanatomical limb bone features have been established for exclusively aquatic and terrestrial lifestyles, identifying clear patterns for the semiaquatic lifestyle remains more challenging.
Apolline Alfsen   +10 more
wiley   +1 more source

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