**Author details**

Levente Hufnagel1,2\*, Melinda Pálinkás1 , Ferenc Mics1 and Réka Homoródi2

1 Faculty of Agricultural and Environmental Science, Laboratory of Biometrics and Quantitative Ecology, Institute of Crop Production, Szent István University, Gödöllő, Hungary

2 ALÖKI Applied Ecological Research and Forensic Institute Ltd, Budapest, Hungary

\*Address all correspondence to: leventehufnagel@gmail.com

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

*Introductory Chapter: The Present Global Ecological Crisis in the Light of the Mass Extinctions… DOI: http://dx.doi.org/10.5772/intechopen.90186*
