Diversity and ecological features of orthopterans (Insecta: Orthoptera) in grassland habitats of the Medvednica mountain

Rašić, Alan Martin (2014) Diversity and ecological features of orthopterans (Insecta: Orthoptera) in grassland habitats of the Medvednica mountain. Diploma thesis, Faculty of Science > Department of Biology.

[img] PDF
Restricted to Registered users only
Language: Croatian

Download (3MB) | Request a copy

Abstract

The study on orthopterans on Medvednica mountain and Croatia in general is one of the first of it’s kind. Nowadays, orthopterans are widely used as bioindicators in grassland habitats due to their sensibility on changes in vegetation structure, composition and anthropogenic pressure in general. Primary objective of this study was to determine the effect of mowing and pasturing regime on diversity, abundance and composition of orthopteran communities on grasslands of Mt. Medvednica, according to which their bioindicative potential could be established. Additional task was to analyse composition and structure of orthopteran communities, together with estimation of percentage of infected specimens with representatives of phylum Nematomorpha. Study was conducted in period 2008 – 2009 during five months, on 10 localities which differed in mowing and pasturing regimes. Results indicated relatively high potential of orthopterans as ecological indicators and biomonitors in grasslands on Mt. Medvednica. Compared to the regularly pastured and mowed localities, on grasslands with supraannual regimes of mowing higher heterogeneity and richness of orthopteran species was determined, but with lower abundance. Multiple increase of abundance of orthopterans on pasture and mowing grasslands occurred due to increase of couple of typical habitat generalist species like Pseudochorthippus parallelus, Glyptobothrus biguttulus and Glyptobothrus brunneus.

Item Type: Thesis (Diploma thesis)
Keywords: biotic homogenization, bioindicators, anthropogenically-zoogenic activities, habitat generalists
Supervisor: Kučinić, Mladen
Date: 2014
Number of Pages: 103
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Grozdana Sirotic
Date Deposited: 25 Mar 2014 13:25
Last Modified: 25 Mar 2014 13:25
URI: http://digre.pmf.unizg.hr/id/eprint/705

Actions (login required)

View Item View Item

Nema podataka za dohvacanje citata