prikaz prve stranice dokumenta Promjena boje tijela glavonožaca (Mollusca, Cephalopoda)
  Download
PDF 189.05 KB
undergraduate thesis
Promjena boje tijela glavonožaca (Mollusca, Cephalopoda)
Zagreb: University of Zagreb, Faculty of Science, 2012. urn:nbn:hr:217:789806
Dobrović, Ana
University of Zagreb
Faculty of Science
Department of Biology

Institutional repository: Repository of the Faculty of Science

Cite this document

Dobrović, A. (2012). Promjena boje tijela glavonožaca (Mollusca, Cephalopoda) (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:789806

Dobrović, Ana. "Promjena boje tijela glavonožaca (Mollusca, Cephalopoda)." Undergraduate thesis, University of Zagreb, Faculty of Science, 2012. https://urn.nsk.hr/urn:nbn:hr:217:789806

Dobrović, Ana. "Promjena boje tijela glavonožaca (Mollusca, Cephalopoda)." Undergraduate thesis, University of Zagreb, Faculty of Science, 2012. https://urn.nsk.hr/urn:nbn:hr:217:789806

Dobrović, A. (2012). 'Promjena boje tijela glavonožaca (Mollusca, Cephalopoda)', Undergraduate thesis, University of Zagreb, Faculty of Science, accessed 26 August 2024, https://urn.nsk.hr/urn:nbn:hr:217:789806

Dobrović A. Promjena boje tijela glavonožaca (Mollusca, Cephalopoda) [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Science; 2012 [cited 2024 August 26] Available at: https://urn.nsk.hr/urn:nbn:hr:217:789806

A. Dobrović, "Promjena boje tijela glavonožaca (Mollusca, Cephalopoda)", Undergraduate thesis, University of Zagreb, Faculty of Science, Zagreb, 2012. Available at: https://urn.nsk.hr/urn:nbn:hr:217:789806

Metadata
TitlePromjena boje tijela glavonožaca (Mollusca, Cephalopoda)
Title (english)Colour change in cephalopods (Mollusca, Cephalopoda)
AuthorAna Dobrović
MentorJasna Lajtner (mentor)
GranterUniversity of Zagreb
Faculty of Science
(Department of Biology)
Zagreb
Defense date and country2012, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Biology
Abstract
Tjelesni uzorak glavonožaca izgrađen je od kromatskih, teksturalnih, posturalnih i lokomotornih komponenti. One su dalje sastavljene od jedinica, a jedinice sačinjavaju elementi – pigmentirani kromatofori, strukturne reflektirajuće stanice i kožni mišići. Zadivljujući optički efekti tjelesnih uzoraka i njihova brza promjena, omogućena je prvenstveno zahvaljujući živčano upravljanim kromatoforima. Unutar svakog kromatofora nalazi se citoelastična vrećica sa pigmentom, za koju su vezani setovi radijalnih mišića sa živcima. Ekspanziju i kontrakciju mišića kontroliraju hijerarhijski organizirani centri u mozgu. Na taj način glavonošci mogu u trenutku promijeniti tjelesni uzorak u svrhu prikrivanja ili komunikacije. Prikrivanje je značajna anti-predatorska taktika, i glavni razlog evolucije kromatofora, a postiže se stapanjem s pozadinom, različitom obojenosti dijelova tijela, prekinutim obojenjem ili nalikovanjem neživim objektima. Tjelesne uzorke glavonošci koriste i u komunikaciji s predatorima ili plijenom te za pronalazak partnera.
Abstract (english)
Body pattern in cephalopods consists of chromatic, textural, postural and locomotor components. They are made up of units, and a unit consists of elements – pigmented chromatophores, structural reflecting cells and skin muscles. Stunning optical effects of body patterns and their rapid changes is enabled primarily due to neurally controlled chromatophores. Within each chromatophore there is a cytoelastic sacculus with pigment, attached to a set of radial muscles, each with its nerves. Expansion and contraction of the muscles is controlled by a set of lobes in the brain organized hierarchically. In this way cephalopods can change their body pattern instantly for camouflage or to communicate. Camouflage is an important anti-predatory tactics, and the main reason of chromatophore evolution. It’s achieved by merging with the background, countershading, disruptive coloration and deceptive resemblance. Cephalopods also use their body patterns to communicate with predators and prey, and to find partners.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:789806
Study programmeTitle: Environmental Sciences
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2018-04-16 08:38:15