Results 51 to 60 of about 10,769 (220)

Analysis of changes in biological parameters and stocks of coho salmon Oncorhynchus kisutch in the Bolshaya River (western Kamchatka) in 1941–2023

open access: yesИзвестия ТИНРО
Changes in the spawning part of the Bolshaya River population of coho salmon are considered for 1941–2023. Long-term trends are revealed for the most important biological parameters of adults, in particular, decreasing in size, weight (except of late ...
O. M. Zaporozhets   +2 more
doaj   +1 more source

Russia's Wartime Economy: Measuring Regional Inequalities From Outer Space

open access: yesJournal of Regional Science, EarlyView.
ABSTRACT We study Russia's February 2022 full‐scale invasion of Ukraine as a natural experiment to determine how sudden disruptions to international market access reshape sub‐national economic inequalities. Using remotely‐sensed nighttime lights as a proxy for economic activity, we estimate the economic effects of the war at the national and regional ...
Irakli Barbakadze   +3 more
wiley   +1 more source

Remote Sensing Analyses of Neotectonic Active Regions in East-Kamchatka [PDF]

open access: yes, 2006
The tectonic history of the Kamchatka Peninsula is dominated by continuous accumulation and amalgamation of terranes with different origins, which were delivered by convergence between the Pacific plate and in former times, the Kula plate against Eurasia
Tanner, David   +6 more
core   +1 more source

Group‐Specific Variation in Heterodyne Frequencies of Biphonic Calls in Resident (R‐Type) Killer Whales Orcinus orca ater

open access: yesMarine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Biphonation—the simultaneous production of two independent fundamental frequencies within a single vocalization—is a prominent feature of killer whale calls, yet the factors influencing the presence and intensity of heterodyne frequencies, which arise from interactions between these fundamentals, remain poorly understood. We analyzed long‐term
Vera I. Fedorova   +5 more
wiley   +1 more source

Psychological Stability vs. Subjective Assessment of Psychological Safety in Secondary School Teachers (Kamchatka Peninsula)

open access: yesСибСкрипт
Psychological stability is a personality trait responsible for coping with adverse influences. It makes it possible to maintain health, work performance, and focus on particular goals. Psychological security is the experience of security or insecurity in
Marina A. Frizen, Lyudmila V. Tsukanova
doaj   +1 more source

FUTURE PLANNING PECULIARITIES UNDER DIFFERENT CONDITIONS OF UNCERTAINTY TOLERANCE IN ADOLESCENTS

open access: yesВестник Кемеровского государственного университета, 2017
The authors of the article analyze the results of empirical research aimed at defining the specificity of future construction in senior pupils with different levels of uncertainty tolerance.
Yuliya Yu. Neyaskina   +1 more
doaj   +1 more source

Linking the Movement Behavior of the Laptev Sea Walrus to Sea Ice and Resource Dynamics

open access: yesMarine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT The walrus subspecies inhabiting the Laptev Sea (Odobenus rosmarus divergens) remains one of the least studied walrus taxa and occurs in a region undergoing rapid environmental change driven by climate warming and increasing human activity. We conducted the first satellite telemetry study of walruses in this region, tracking 14 individuals ...
Varvara Levitskaya   +4 more
wiley   +1 more source

Description of regression models for predicting the dynamics of pink salmon returns in the Kamchatka region based on climate-oceanological and population-genetic data

open access: yesИзвестия ТИНРО
Several regression models for predicting returns of pink salmon in the Kamchatka region are presented. The data for 1990–2023 were analyzed. Among available climatic and oceanological indices, the most suitable for using as predictors for forecasting of ...
A. V. Bugaev   +3 more
doaj   +1 more source

Kamchatka

open access: yesThe Geographical Journal, 1901
n ...
openaire   +1 more source

Genetic structure, spectral characteristics and evolutionary history of butterflies in the European Polyommatus eros species group (Lepidoptera, Lycaenidae)

open access: yesSystematic Entomology, Volume 51, Issue 4, October‐December 2026.
The genetic results, microbial (Wolbachia) screening and wing spectral characteristics suggested a close relationship between European taxa of the Polyommatus eros species group. Two lineages appear to be undergoing accelerated differentiation, in particular the endangered taxon menelaos, which is differentiated in both genetic and wing spectral ...
Nok Ting Lam   +9 more
wiley   +1 more source

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