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Samenvatting Koudbloedigen: herkenning dieren eigenschappen
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Samenvatting van 21 pagina's voor het vak Koudbloedigen aan de HoGent (reptielen)
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Samenvatting koudbloedigenAlgemene kenmerken reptielen
Huid (schubben - beenplaten – verhoornde uitsteeksels – vervellingen -
thermoregulatie)
Koudbloedig (poikilotherm – ectotherm - PBT – thermoregulatie - winterslaap)
Longen (meestal 2 - geen middenrif - gasuitwisseling)
Ovipaar (meeste soorten, land, broedzorg)
Ovovivipaar / vivipaar
Gif (gifslangen, korsthagedis en gilamonster)
Voeding (herbi - carni –pisci - omni - insectivoor, ook voedselspecialisatie)
Communicatie (zwaaien, knikken, houdingen, kleuren)
Verdediging (verbergen, camouflage, staart, nagels, bijten, autotomie, scherpe
stekels, sissen, blazen, kraag, schild (Cuora en Terrapene), anale klieren, dood
houden, gif, mimicry)
Indeling binnen de reptielen:
4 ORDEN
1 Squamata
2 Chelonia
3 Crocodylia
4 Rhynchocephalia
1 Orde Squamata
Sauria: hagedissen
Serpentes: slangen
(Amphisbaenia: wormhagedissen)
Sauria: hagedisachtigen
4 poten, oogleden, uitwendig trommelvlies
Sterk variërend in grootte
, Serpentes: slangen
-Pootloos, geen oogleden, geen uitwendig trommelvlies
-Tot gifklieren geëvolueerde speekselklieren
-Sterk variërend in grootte
Amphisbaenia: wormhagedissen
Gravende, meestal pootloze reptielen
2 Orde Chelonia
SCHILDPADDEN
Cryptodira: halsbergers
Pleurodira: halswenders
sterk variërend in grootte
land / water
zoet / zout water
3 Orde Crocodylia
Crocodylinae (krokodillen)
Alligatorinae
(kaaimannen en alligators)
Gavialinae (gavialen)
4 Orde Rhinchocephalia
(Sphenodontidae)
-Primitieve hagedisachtige reptielen, ‘levende
fossielen’
-BRUGHAGEDISSEN
-Tuatara ‘stekelige rug’
- Nieuw Zeeland
Algemeen voeding
Vleeseters / insecteneters
morio’s, meelwormen, buffalowormen, rat, muis
Planteneters / alleseters
witloof, andijvie, sla, wortel, paardenbloem, klaver
ALTIJD CALCIUMPOEDER/VITAMINES!
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