Utjecaj režima prehrane na ponašanje lemura Lemur catta Linnaeus, 1758 i Varecia variegata Kerr, 1792 u zatočeništvu

master's thesis

• Title (english): Influence of different diet regimes on behaviour of lemurs Lemur catta Linnaeus, 1758 and Varecia variegata Kerr, 1792
• Author: Ana Krivokuća
• Mentor: Duje Lisičić (mentor)
• Committee member: Duje Lisičić (predsjednik povjerenstva)
• Committee member: Ivančica Ternjej (član povjerenstva)
• Committee member: Alan Moro (član povjerenstva)
• Committee member: Nenad Buzjak (član povjerenstva)
• Committee member: Neven Bočić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2016-02-12, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Malobrojna su istraživanja o utjecaju režima prehrane na ponašanje jedinki u zatočeništvu.
Cilj ovog istraživanja, na dvije grupe lemura prstenastorepih i čupavouhih lemura, je utvrditi
povezanost zdrave prehrane na bazi povrća s ponašanjem jedinki. Utvrđeno je da prehrana u prirodi
sadrži složene ugljikohidrate (vlakna), a voće iz uzgoja u zoološkim vrtovima sadrži više
jednostavnih ugljikohidrata (glukoza, fruktoza). Prehrana je mogući uzrok fizioloških nedostataka
jedinki u zatočeništvu. Provela sam prethodna promatranja i kreirala tablicu ponašanja prilagođenu
našim grupama. Grupe su promatrane jednako ujutro i popodne u trajanju od tri sata (jedan prije
hranjenja i dva poslije), a opažena ponašanja bilježila sam svake dvije minute. Rezultati su pokazali
da su obje grupe više vremena provodile u odmaranju i probavljanju hrane, čija se konzumacija
također značajno povećala, te u prosocijalnim (pozitivnim međusobnim) interakcijama. Promjenom
prehrane u grupi čupavouhih lemura došlo je do značajnog pada agonističkih (negativnih, agresivnih)
ponašanja. Odgovori obaju promatranih grupa ovisili su o sastavu grupe i u detaljima se razlikuju, no
generalni zaključak je da prehrana utječe na ponašanje i nužna su detaljnija istraživanja varijabli koje
su se pokazale ključne u ovom istraživanju.

Abstract (english)

There are a few researches about influence of diet regimes on animal behaviour in captivity.
Aim of this research, on two groups black and white ruff-eared and ring-tailed lemurs, is to confirm
the influence of healthy vegetable based diet on behaviour of individuals. It is known that diet in
nature contains complex carbohydrates (fibers), and that fruit in the zoos contains much more simple
carbohydrates (glucose, fructose). Diet could be the cause of physiological limitations of individuals
in captivity. I did preliminary monitoring and created the table of behaviours for our groups.
Monitoring was equal for morning and afternoon sessions in duration of three hours (one before
feeding and two after), recording behaviours every two minutes. The results have shown that both
groups spent more time resting and digesting, the feeding rate had grown, and their prosocial
interactions (positive mutual) increased. The diet change in black and white ruff-eared lemurs caused
the significant decrease of agonistic (aggressive) behaviours. The response of both groups depended
on group formation and they differed in details, but general conclusion is that diet has influence on
the behaviour and it is necessary to test important variables from this research in other circumstances.

• Keywords: hranjenje; kretanje; ponašanje lemura; prehrana primata u zatočeništvu; ugljikohidrati
• Keywords (english): activity; carbohydrates; feeding; lemurs behaviour; primate diet in the zoos
• Language: croatian
• URN:NBN: urn:nbn:hr:217:038801
• Study programme: Title: Enviromental Sciences; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra struke znanosti o okolišu (magistar/magistra struke znanosti o okolišu)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-05-08 09:29:14