COURTSHIP BEHAVIOR IN THE ALPINE NEWT TRITURUS ALPESTRIS AT TWO DIFFERENT DENSITIES OF MALES
نویسندگان
چکیده
منابع مشابه
Masters of change: seasonal plasticity in the prey-capture behavior of the Alpine newt Ichthyosaura alpestris (Salamandridae).
Transitions between aquatic and terrestrial environments are significant steps in vertebrate evolution. These transitions require major changes in many biological functions, including food uptake and transport. The Alpine newt, Ichthyosaura alpestris, is known to show a 'multiphasic lifestyle' where the adult shifts from a terrestrial to an aquatic lifestyle and then back to a terrestrial lifes...
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Dissociation and Reaggregation of Embryonic cells of Triturus alpestris
C E L L movement and migration seem to play an important role in the formation of tissue-patterns during embryogenesis. Phenomena such as the appearance of loosely attached cells in the mesoderm, or of the freely migrating neural crest cells, are quite common in embryonic development. Since the tissues of adult organs are mostly rather compact in structure it seems that the capacity of isolated...
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Current theories on the evolution of paedomorphosis suppose that several ontogenetic pathways have appeared according to different selective pressures. The aim of this study was to find out whether two distinct processes can lead to paedomorphosis in the Alpine newt, Triturus alpestris. In this respect, we compared age structures of paedomorphic and metamorphic individuals in two newt populatio...
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ژورنال
عنوان ژورنال: Herpetologica
سال: 2005
ISSN: 0018-0831,1938-5099
DOI: 10.1655/04-55.1