1. Limnological Characterization and First Data on the Occurrence of Toxigenic Cyanobacteria and Cyanotoxins in the Plankton of Some Lakes in the Permafrost Zone (Yakutia, Russia)

   • V. A. Gabyshev
   • S. I. Sidelev
   • Z. A. Zhakovskaya

   OriginalPaper 20 April 2023 Pages: 89 - 102

   

2. Diatom Complexes in Modern Bottom Sediments of Lakes of the Central Tunguska Plateau, Evenkia

   • G. N. Bolobanshchikova
   • O. V. Palagushkina
   • D. Y. Rogozin

   OriginalPaper 20 April 2023 Pages: 103 - 117

   

3. Estimation of Methane Fluxes in the Ecosystem of the Palsa Mire in the Far North Taiga Subzone in the European Northeast of Russia (According to the Results of Two Measurement Methods)

   • S. V. Zagirova
   • M. N. Miglovets
   • S. V. Yakubenko

   OriginalPaper 20 April 2023 Pages: 118 - 127

   

4. Long-Term Changes in the Number of Birds of the Barguzin Range (Northeastern Baikal Region)

   • A. A. Ananin

   OriginalPaper 20 April 2023 Pages: 128 - 135

   

5. Current and Retrospective Numbers of Anseriform Birds in Autumn Migration in the Selenga River Delta (Republic of Buryatia, Lake Baikal)

   • I. V. Fefelov
   • Yu. A. Anisimov
   • A. I. Povarintsev

   OriginalPaper 20 April 2023 Pages: 136 - 141

   

6. Neuropteran Assemblage (Insecta) of a Pine Forest in the Republic of Tatarstan Revealed by Crown Bait Traps

   • V. N. Makarkin
   • A. B. Ruchin
   • Yu. A. Lukyanova

   OriginalPaper 20 April 2023 Pages: 142 - 148

7. Acclimation of the Leaf Photosynthetic Apparatus and the Reproductive Sphere in Dryas octopetala L. Plants Introduced into Central Russia

   • E. V. Chernyaeva
   • N. G. Kuranova
   • V. P. Viktorov

   OriginalPaper 20 April 2023 Pages: 149 - 157

   

8. Dynamics of Phenological Parameters in Some Lilac Species in a Changing Climate

   • N. V. Polyakova
   • Z. Kh. Shigapov

   OriginalPaper 20 April 2023 Pages: 158 - 165

9. Influence of Biotic and Abiotic Factors on the Duration of Development of the Spongy Moth Lymantria dispar (L.) (Lepidoptera: Erebidae) in the West Siberian Population of Different Latitudinal Origin

   • V. I. Ponomarev
   • G. I. Klobukov
   • V. V. Martemyanov

   OriginalPaper 20 April 2023 Pages: 166 - 172

   

10. Diversity and Significance of Lithobiotic Communities at the Tomskaya Pisanitsa Rock Art Site

    • D. Yu. Vlasov
    • M. S. Zelenskaya
    • O. V. Frank-Kamenetskaya

    OriginalPaper 20 April 2023 Pages: 173 - 188

    

11. Sand Mining as a Contemporary threat to Sandbar Nesting Birds: a Review

    • M. S. Arjun
    • Bibhu Prasad Panda
    • P. R. Arun

    OriginalPaper 20 April 2023 Pages: 189 - 204

    

12. Long-Term Dynamics of Forest Fires in Southern Siberia

    • E. G. Shvetsov
    • A. S. Golyukov
    • V. I. Kharuk

    OriginalPaper Open access 20 April 2023 Pages: 205 - 216

    

13. Comparative Analysis of Foliar Diseases of Some Native and Non-Native Tree Species in Belarus and Siberia

    • M. A. Tomoshevich
    • D. Belomesyatseva
    • T. Shabashova

    OriginalPaper Open access 20 April 2023 Pages: 217 - 229

    

14. Phenotypic Diversity and Variation in Natural Populus euphratica Populations Shaped by Environmental Factors

    • X. S. Dong
    • X. X. Chen
    • Z. J. Li

    OriginalPaper 20 April 2023 Pages: 230 - 252

    

15. Wild Animal Conservation Efforts of the International Institutions in the World’s Largest Mangrove Forest in Bangladesh

    • Md. Ziaul Islam
    • Shuwei Wang
    • Yibo Jiang

    OriginalPaper 20 April 2023 Pages: 253 - 263