Results 31 to 40 of about 8,926 (163)

Comparing infrared imagery to traditional methods for estimating ringed seal density

Wildlife Society Bulletin, 2019
When conducting aerial surveys of wildlife populations, a number of animals go undetected by observers. The use of infrared imagery may offer a solution to improve detection rates and reduce visibility bias.
Brent G. Young, David J. Yurkowski, J. Blair Dunn, Steven H. Ferguson   +3 more
doaj   +1 more source

Eino Pusa : tekstiilikauppias kuudella vuosikymmenellä

, 2023
Eino Pusa (1903–1993) oli viipurilaisyrittäjä, joka nosti yhtiönsä tekstiilikaupan toimialan eturiviin. Pusa aloitti liiketoimintansa 1920-luvun lopulla perustamalla ensimmäisen asusteita myyvän liikkeensä Viipurissa ja jatkoi alalla kuolemaansa asti ...
Möttönen, Tuomas
core   +1 more source

SealID: Saimaa Ringed Seal Re-Identification Dataset

Sensors, 2022
Wildlife camera traps and crowd-sourced image material provide novel possibilities to monitor endangered animal species. The massive data volumes call for automatic methods to solve various tasks related to population monitoring, such as the re ...
Ekaterina Nepovinnykh, Tuomas Eerola, Vincent Biard, Piia Mutka, Marja Niemi, Mervi Kunnasranta, Heikki Kälviäinen   +6 more
doaj   +1 more source

Data on three Baltic species of Corynosoma Lühe, 1905 (Acanthocephala: Polymorphidae) from Baltic grey (Halichoerus grypus) and ringed seals (Pusa hispida)

, 2021
We analyzed Baltic Corynosoma material (C. magdaleni Montreuil, 1958, C. semerme (Forssell, 1904) Lühe, 1911 and C. strumosum (Rudolphi, 1802) Lühe, 1904) from grey (Halichoerus grypus) and ringed seals (Pusa hispida) for the variation of hook morphology
https://orcid.org/
core   +2 more sources

Seal and Polar Bear Behavioral Response to an Icebreaker Vessel in Northwest Greenland

Human-Wildlife Interactions, 2019
Icebreaker vessels are important scientific tools, enabling access and research within the polar regions of the world, including the High Arctic. These vessels have the potential to overlap with marine mammal habitats in infrequently studied areas ...
Kate Lomac-MacNair, José Pedro Andrade, Eduardo Esteves   +2 more
doaj   +1 more source

Changing environmental conditions have altered the feeding ecology of two keystone Arctic marine predators

Scientific Reports, 2023
Environmental change in the Arctic has impacted the composition and structure of marine food webs. Tracking feeding ecology changes of culturally-valued Arctic char (Salvelinus alpinus) and ringed seals (Pusa hispida) can provide an indication of the ...
Matthew A. Anderson, Aaron T. Fisk, Rodd Laing, Marie Noël, Joey Angnatok, Jane Kirk, Marlene Evans, Liz Pijogge, Tanya M. Brown   +8 more
doaj   +1 more source

(Table 4) Mean numbers of parasites per ringed seal (Pusa hispida) collected from northwestern Spitsbergen

, 2010
(Table 4) Mean numbers of parasites per ringed seal (Pusa hispida) collected from northwestern ...
Kit Maureen Kovacs (7998011), Paul E Aspholm (7999400), Christian Lydersen (320766), Lydersen, Christian, Kovacs, Kit Maureen, Tore Haug (234462), Carina E Johansen (7999397), Johansen, Carina E, Haug, Tore, Aspholm, Paul E   +9 more
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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

(Table 3) Otolith length and body length of prey species of ringed seals (Pusa hispida) obtained from the Northeast Greenland area

, 2011
(Table 3) Otolith length and body length of prey species of ringed seals (Pusa hispida) obtained from the Northeast Greenland ...
Kit Maureen Kovacs (7998011), Nette Levermann (8000261), Christian Lydersen (320766), Lydersen, Christian, Kovacs, Kit Maureen, Labansen, Aili L, Levermann, Nette, Tore Haug (234462), Aili L Labansen (8000258), Haug, Tore   +9 more
core   +1 more source

Morphological observations on three Baltic species of Corynosoma Lühe, 1905 (Acanthocephala, Polymorphidae)

European Journal of Taxonomy, 2019
Necropsies of Baltic grey (Halichoerus grypus) and ringed seals (Pusa hispida) presented a rare opportunity to study their acanthocephalan fauna. Both species hosted adults of three species of the genus Corynosoma Lühe, 1904, namely C.
Sonja Leidenberger, Sven Boström, Matthew T. Wayland   +2 more
doaj   +1 more source