Table of Contents
To view the fulltext, log-in or choose pay-per-view options:
Get Access

The Concept of Cathemerality: History and Definition

Tattersall I.
Division of Anthropology, American Museum of Natural History, New York, N.Y., USA Folia Primatol 2006;77:7–14 (DOI:10.1159/000089692)

Abstract

During a field study in 1974 it was noticed, and further fieldwork in 1977 and 1980 confirmed, that the activity of the Mayotte lemur, Eulemur fulvus fulvus, is distributed fairly evenly throughout the daily 24-hour cycle: by a very crude approximation the daytime activity:rest ratio averages 0.271, while the night-time ratio averages 0.283. In 1978 I proposed the new word ‘cathemeral’, compounded from the Greek roots ĸατα (through) and &eta&;ogon;µερα (the day), to describe this unusual activity pattern, though for reasons described in this article the term was not formally published until 1988. Since then cathemeral activity has been routinely recorded, with some variation, in species of the strepsirhine genera Eulemur and Hapalemur; and in one form or another it apparently also occurs, at least occasionally, among platyrrhines (species of Aotus and Alouatta) as well as among a variety of non-primate mammals. It may well thus be a more widespread activity pattern than earlier appreciated.

 

Individual Users: Register with Karger Login Information

Please create your User ID & Password





Contact Information











I have read the Karger Terms and Conditions and agree.


Pay-per-View Options
Direct payment This item at the regular price: USD 38.00
Payment from account With a Karger Pay-per-View account (down payment USD 150) you profit from a special rate for this and other single items.
This item at the discounted price: USD 26.50