منابع مشابه
Steroid correlates of territorial behavior in male jacky dragons, Amphibolurus muricatus.
Male jacky dragons, Amphibolurus muricatus, indicate territoriality to rivals during the mating season through the use of stereotyped motor displays. The relationship between corticosterone (B) and testosterone (T) and its effects on territorial display expression were investigated in captive lizards. Results demonstrated that territorial display production was most effectively predicted by ele...
متن کاملDirect effects of incubation temperature on morphology, thermoregulatory behaviour and locomotor performance in jacky dragons (Amphibolurus muricatus).
Incubation temperature is one of the most studied factors driving phenotypic plasticity in oviparous reptiles. We examined how incubation temperature influenced hatchling morphology, thermal preference and temperature-dependent running speed in the small Australian agamid lizard Amphibolurus muricatus. Hatchlings incubated at 32 °C grew more slowly than those incubated at 25 and 28 °C during th...
متن کاملHeightened aggression and winning contests increase corticosterone but decrease testosterone in male Australian water dragons.
Water dragons (Intellegama [Physignathus] lesueurii) are large (to >1m) agamid lizards from eastern Australia. Males are fiercely combative; holding a territory requires incessant displays and aggression against other males. If a dominant male is absent, injured or fatigued, another male soon takes over his territory. Our sampling of blood from free-ranging adult males showed that baseline leve...
متن کاملThere Be Dragons
Our security gateway to the Internet research att com provides only a limited set of services Most of the standard servers have been replaced by a variety of trap programs that look for attacks Using these we have detected a wide variety of pokes ranging from simple doorknob twisting to determined assaults The attacks range from simple attempts to log in as guest to forged NFS packets We believ...
متن کاملThe Footprints of Dragons
Almost all our early ancestors believed the earth was inhabited, especially in unknown regions, by dragons. Where did they get such an idea? Did it stem from a universal human imagination? An inherited need or instinct? An inherited subconscious memory of dinosaurs? All these suggestions have been made, and taken seriously by groups of people. I believe dragons are the reflection, sometimes emb...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2007
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.010934