International Research Journal of Natural Sciences (IRJNS)

EA Journals

A Study on the Diel Activity of Myriapods (Diplopoda, Chilopoda) In Natural and Anthropogenically Influenced Habitats


The present paper provides the results of a study on the diel activity of millipedes and centipedes from two different in terms of anthropogenic impact sites located in northeastern Bulgaria. The presumed differences in the diel activity of myriapods were tested using various statistical methods: the criterion of Kolmogorov, 2 criterion of uniformity, Pearson’s normalized correlation coefficients, and the multivariate regression analysis. . The results show that the diel surface activity of the established species depends on the degree of illumination (number of hours in a day), the air and the soil temperature. However, the activity was not affected by relative humidity, active seasons, and the degree of anthropogenic impact. The diurnal activity conducted in urban and natural habitats confirmed the nocturnal nature of the established species, which are most active in the time interval from 10:00 pm to 4:00 am. This activity is likely to have endogenous nature and it is controlled by internal physiological factors, but its duration may vary according to the changes in the environmental conditions.

Keywords: Activity, Bulgaria, Circadian Rhythms, Rural, Urban

cc logo

This work by European American Journals is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 Unported License


Recent Publications

Email ID:
Impact Factor: 7.72
Print ISSN: 2053-4108
Online ISSN: 2053-4116

Author Guidelines
Submit Papers
Review Status


Scroll to Top

Don't miss any Call For Paper update from EA Journals

Fill up the form below and get notified everytime we call for new submissions for our journals.