Search for dissertations about: "Reptiles"
Showing result 1 - 5 of 24 swedish dissertations containing the word Reptiles.
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1. Diversity and Limits of Colour Vision in Terrestrial Vertebrates
Abstract : Most terrestrial vertebrates have colour vision, some perceive a less colourful world and others actually discriminate a wider colour spectrum than humans do. Still, we can all make use of the valuable colour information, which is more rigid than just brightness. READ MORE
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2. Population Dynamics and Conservation of the Sand Lizard (Lacerta agilis) on the Edge of its Range
Abstract : The sand lizard (Lacerta agilis) reaches the northern periphery of its distribution in south-central Sweden, where small, isolated relict populations occur in pine heath forests on sandy sediments. Modern forestry and fire suppression have reduced the amount of suitable open habitat for the species in this area and seem to be important for its decline. READ MORE
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3. Development of central catecholaminergic neuronal systems in the lizard Anolis sagrei
Abstract : Catecholamines, comprising the neurotransmitters dopamine (DA), noradrenaline (NA) and adrenaline (A) are synthesized by specific enzymes (tyrosine hydroxylase (TH), dopamine ß-hydroxylase (DBH), phenylethanolamine-N-methyltransferase (PNMT)) in the central nervous system. The development and distribution of different catecholaminergic systems have been described in both the brain and retina of the lizard Anolis sagrei. READ MORE
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4. Form and function in some Mesozoic reptiles
Abstract : .... READ MORE
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5. Preservation of Marine Reptile Soft Parts: Reconstructing the Life and Death of Ancient Leviathans
Abstract : Marine reptiles constitute a diverse group of secondarily aquatic tetrapods that have inhabited the world’s oceans for the greater part of the last 250 million years. While certain large-scale anatomical changes have been observed through progressive alterations of their skeletal morphology (e.g. READ MORE