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Current status and importance of butterflies of the Noctuidae (Lepidoptera) family in the natural and anthropogenic ecosystems of the Republic of Moldova


Author: Țugulea Cristina
Degree:doctor of biology
Speciality: 03.00.09 - Entomology
Year:2020
Scientific adviser: Valeriu Derjanschi
doctor habilitat, professor, Institute of Zoology
Institution: Institute of Zoology

Status

The thesis was presented on the 30 October, 2020
Approved by NCAA on the 23 December, 2020

Abstract

Adobe PDF document – 1.18 Mb / in romanian
Adobe PDF document – 1.16 Mb / in english

Thesis

CZU 595.786-19 (478) (043.2)

Adobe PDF document 8.33 Mb / in romanian
268 pages

Keywords

Lepidoptera, Noctuidae, diversity, new species, rare species, natural ecosystems, agrocenoses, trophic relationships, pests, seasonal activity

Summary

The thesis consists of Introduction, 4 chapters, general conclusions and recommendations, bibliograpgy of 326 titles, 10 appendices, 139 basic text pages, 58 figures, 12 tables. The results are presented in 13 publications.

Field of study: 165.04 - Entomology.

Purpose: highlighting the current status and estimating the importance of butterflies of the Noctuidae family (Lepidoptera) in natural ecosystems and agrobiocenoses of the Republic of Moldova.

Objectives: to identify the composition of noctuid species on the territory of the Republic of Moldova; to determine the association of the noctuids in order to establish their belonging to the main zoogeographical groups; to perform the biotopic distribution of noctuids, depending on ecological preferences; to analyze the trophic spectrum in the larval stage of the noctuids identified; to estimate the ecological significance of noctuids in the natural ecosystems and agrobiocenoses; to make the annotated list of noctuids in the Republic of Moldova.

Scientific novelty and originality. It is for the first time that an extensive study of noctuids from 17 subfamilies was performed on the entire territory of the Republic of Moldova, being collected and analyzed over 11,000 specimens from 24 collection sites. Thus, it was established that the fauna of noctuids (Noctuidae) in the Republic of Moldova consists of 425 species, taxonomically classified into 169 genera and 17 subfamilies, of which 4 genera and 17 species are new for the country’s fauna. The list of 11 species of butterflies from the Noctuidae family, which need protection and conservation at national level, has been made for the first time. The biotopic, geographical distribution and the trophic spectrum of noctuids were analyzed, the seasonal dynamics of the flight to the trap with white and ultraviolet light was monitored and the annotated list of noctuids from the Republic of Moldova was drawn up.

The scientific problem consisted in establishing the specific composition, ecological structure and peculiarities of the functioning of noctuid communities in the natural ecosystems and agrobiocenoses of the Republic of Moldova.

Theoretical importance. The results of the study of fauna, ecology, importance of noctuids in the Republic of Moldova have an important contribution to the knowledge of this taxonomic group of lepidoptera. The data on the species registered as new for the country's fauna constitute a significant contribution to the completion of the information database in Europe.

The applicative value of the paper. The major findings of this thesis are part of the fundamental and applicative scientific research topic of the Institute of Zoology. The conducted investigations will improve the theoretical and empirical heritage in terms of fauna diversity, spatial structure, trophic spectrum and dynamic range of noctuids in natural ecosystems and agrobiocenoses.

Implementation of scientific results. The data on the species of noctuids that are harmful to agricultural crops can be used by specialists as methodological support for the elaboration of control measures. The information about this group of insects is useful in the elaboration of bachelor's and master's theses. The obtained results can be used as methodological support for the implementation of pest monitoring plans and research conducted within the Natural Reserve "Codrii", at the same time they can be used in the elaboration and writing of the 4th edition of the Red Book of the Republic of Moldova.