In certain areas of the Namib gravel plains a new Ariadna sp. was discovered. It rims its vertical burrow with a stone circle, made on average of seven quartz stones. Some mathematical relationships between hole diameter, stone sizes and weight, and animal size were studied. A correlation was found, and stone selection by this spider postulated. Different hypotheses on the adaptive value of stone circle are suggested.
|Titolo:||A "mathematical" spider living in gravel plains of the Namib Desert|
|Data di pubblicazione:||1995|
|Appare nelle tipologie:||1.1 Articolo in rivista|