Usporedba prehrane kućnog (Hemidactylus turcicus L.) i zidnog (Tarentola mauritanica L.) macaklina na otoku Hvaru tijekom proljeća

master's thesis

• Title (english): Comparison of dietary habits of house (Hemidactylus turcicus L.) and wall (Tarentola mauritanica L.) gecko on the island of Hvar during spring
• Author: Maja Stanec
• Mentor: Zoran Tadić (mentor)
• Committee member: Milorad Mrakovčić (član povjerenstva)
• Committee member: Antun Alegro (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2011, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Simpatrijske populacije dviju vrsta macaklina u Hrvatskoj, kućnog (Hemidactylus turcicus) i zidnog (Tarentola mauritanica), nalazimo na otoku Hvaru, te je cilj ovoga istraživanja vidjeti čime se hrane i postoje li razlike. Uzorci su prikupljeni ispumpavanjem želudaca te su utvrđene glavne skupine plijena. Obzirom na veličinske kategorije plijena, jedinke veće vrste (T. mauritanica) jedu veći plijen, pritom ne zanemarujući manji, dok je manja vrsta (H. turcicus) ograničena na manje katergorije plijena. Obje vrste služe se tehnikama lova iz zasjede i aktivnog lova. Gledajući otrovnost plijena, jedu najviše neotrovan plijen, zatim plijen sa otrovnim ubodom, a najmanje otrovan plijen. Uspoređujući tvrdoću plijena, obje vrste najviše preferiraju polutvrdi plijen, zatim meki, a najmanje tvrdi. Za obje vrste u proljeće volumno i količinski najbitnija je skupina Aranea (pauci) i to veliki primjerci. Postoje značajne razlike pri usporedbi dviju vrsta kod skupina Coleoptera, Dermaptera i Diptera što ukazuje na različitu raspodjelu prostornih niša i izbjegavanje interspecijske kompeticije.

Abstract (english)

The sympatric populations of two species of geckos in Croatia, house (Hemidactylus turcicus L.) and wall gecko (Tarentola mauritanica L.) can be found on the island of Hvar and the goal of this research is to explore what are their dietary habits and if there are any differences between two species. Samples were gathered by extracting the stomach contents and main groups of prey were determined. Considering the size of prey, larger T. mauritanica eats larger prey, but does not exclude smaller prey, and smaller H. turcicus is somewhat limited by its size to smaller prey. Both species use technics ambush hunting and active foraging. Both eat mostly nonpoisonous prey, then prey with venomous sting and the least the poisonous prey. Both species prefer semihard prey, then soft prey and the least hard prey. By volume and by quantity, the most important group during spring is Aranea (spiders), the large specimens. When comparing two species of geckos, significant differences are apparent within groups of Coleoptera, Dermaptera and Diptera, which points out to a different distribution of spatial niches and avoidance of competition.

• Keywords: Hemidactylus turcicus; Tarentola mauritanica; aktivan lov; Aranea; Diptera; Coleoptera; kompeticija; ekološka niša
• Keywords (english): Hemidactylus turcicus; Tarentola mauritanica; active foraging; Aranea; Diptera; Coleoptera; competition; ecological niche
• Language: croatian
• URN:NBN: urn:nbn:hr:217:727902
• Study programme: Title: Biology; specializations in: Ecology; Course: Ecology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra biologije (magistar/magistra biologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-04-11 09:49:05