Annual of Natural Sciences Department

Current Issue

Vol. 8 (2023): Annual of Natural Sciences Department

View Vol. 8 (2023): Annual of Natural Sciences Department

Published: 2023-12-30

Editorial

Editorial
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Contents
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Articles

Mobile amateur applications for marking and tracking birds as a tool for protecting them and for development of ornithological tourism

Adelina Stoyanova, Ralitza Berberova

1-7
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Data analysis of the mid-winter census of wintering aquatic birds on the territory of Ramsar sites along the Bulgarian Black Sea coast for the period 2012 – 2021

Aleksandra Stoyanova, Ralitza Berberova

8-19
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Data analysis of the observation on spiders (Araneae) diversity in the Bulgarian part of Osogovo mauntain

Dema Cholakova

20-29
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Raw material sources and building materials from the Hellenistic period in the vicinity of Mesambria Pontica according archaeological sites

Zhivko Uzunov, Bilyana Kostova, Boika Zlateva

30-41
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Application of clay as a sustainable building material. Characteristics of ancient clay plasters - pilot results

Katerina Mihaylova, Ventsislava Ivanova, Bilyana Kostova

42-56
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