diplomsko delo
Katja Pušnik (Author), Tone Novak (Mentor), Sonja Škornik (Co-mentor)

Abstract

Od julija do oktobra 2009 smo na opuščenem travniku v kraju Tratna ob Voglajni raziskovali dnevno-nočne vertikalne migracije navadnega matije (Phalangium opilio Linnaeus, 1758). Glede na vegetacijo na raziskovanem območju spada travnik po tipologiji habitatnih tipov Slovenije v kategorijo srednjeevropskih kseromezofilnih nižinskih travnikov na razmeroma suhih tleh in nagnjenih legah s prevladujočo visoko pahovko. Zanimalo nas je, na kateri višini so prisotni osebki na rastlinah v 24-urnem ciklu, kdaj postanejo aktivni in kdaj se umirijo ter ali je njihova dnevno-nočna dinamika odvisna od temperature in vlage. Na mirovališču vsakega osebka smo določiti njegov spol in/oziroma morfotip in izmerili višino nad tlemi, temperaturo in vlago ter določili lego glede na osončenosti. Potrdili smo hipotezo, da se v večernem času, ko je relativna zračna vlaga visoka, osebki pretežno zadržujejo višje na rastlinah. Prav tako smo potrdili hipotezi, da je aktivnost osebkov zelo vezana na temperaturne in vlažnostne razmere in da se nameščajo osebki v 24 urah na različnih višinah nad tlemi. Potrdili smo hipotezi, da se posamezni morfotipi ne razlikujejo med seboj po dnevno-nočni aktivnosti in da se velikorogi in majhnorogi samci glede okoljskih dejavnikov na mirovališčih med seboj značilno razlikujejo. Nismo potrdili hipoteze, da se v dopoldanskem času, ko je relativna zračna vlaga zelo visoka, osebki pretežno zadržujejo na vrhu rastlin in popoldanskem času, ko je relativna zračna vlaga relativno nizka, nižje na rastlinah.

Keywords

biologija;mirovališča;navadni matija;opuščeni travniki;pajkovci;suhe južine;diplomska dela;

Data

Language: Slovenian
Year of publishing:
Source: Maribor
Typology: 2.11 - Undergraduate Thesis
Organization: UM FNM - Faculty of Natural Sciences and Mathematics
Publisher: [K. Pušnik]
UDC: 57/59(043.2)
COBISS: 17934088 Link will open in a new window
Views: 2413
Downloads: 159
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary title: CIRCADIAN VERTIKAL MIGRATIONS OF PHALANGIUM OPILIO IN AN ABANDONED PASTURE
Secondary abstract: From July till October 2009 we observed nictephemeral vertical migrations in the harvestman Phalangium opilio Linnaeus, 1758, on an abandoned meadow in the locality of Tratna ob Voglajni. According to the vegetation records in the area, and referring to the typology of habitat types in Slovenia, the meadow ranks in the category of central European xero-mesophile low-lying grasslands on a relatively dry ground and inclined surfaces with predominantly tall oat-grass. We were interested in which height place individuals themselves on plants within 24-hour cycle, when they become active, and when they cease their activities, and if their nictephemeral dynamics depends on temperature and humidity. At the resting place of each sexed individual, we determined its morphotype, and measured the height of its placement on a plant, temperature, humidity and insiolation. We have confirmed the hypothesis that in the evening when the relative humidity is high, individuals are mostly present higher on the plants. We have also confirmed that the activity of individuals is strongly related to temperature and humidity, and that individuals migrate vertically within 24 hours. Further on, we confirmed that different individuals of morphotypes do not differ with respect to their 24-hours activities, and that large-horned males differ significantly from the small-horned ones with respect to the environmental factors. However, we did not confirm that, in the morning when the relative humidity is high, individuals rest higher on the plants, and in the afternoon when the relative humidity is low, they residence lower on the plants.
Secondary keywords: Keywords: abandoned meadow;arachnids;harvestmen;Phalangium opilio;resting placement.;
URN: URN:SI:UM:
Type (COBISS): Undergraduate thesis
Thesis comment: Univ. v Mariboru, Fak. za naravoslovje in matematiko, Oddelek za biologijo
Pages: VI, 40 f.
Keywords (UDC): mathematics;natural sciences;naravoslovne vede;matematika;biological sciences in general;biologija;
ID: 18858