Selected body temperature, metabolic rate and activity pattern of the Australian fossorial skink, Saiphos equalis

Authors: Wu, Qiong; Parker, Scott L.; Thompson, Michael B.

Source: The Herpetological Journal, Volume 19, Number 3, July 2009 , pp. 127-133(7)

Publisher: British Herpetological Society

Buy & download fulltext article:

OR

Price: $30.20 plus tax (Refund Policy)

Abstract:

Fossorial and nocturnal lizards have limited opportunities to thermoregulate because they do not have access to basking opportunities, which has implications for their thermal physiology and metabolism. We measured substrate temperatures (Ts) in the field, and selected body temperatures (Tb) and metabolic rates in the laboratory, in fossorial skinks, Saiphos equalis, to quantify basic aspects of their thermal and metabolic physiology. Saiphos equalis selects relatively cool temperatures over a broad range (approximately 17–24 °C), suggesting that it does not thermoregulate precisely. Individuals of S. equalis are active more often at night than during the day. Rate of oxygen consumption was measured at 2 °C intervals from 10–30 °C in adult lizards. Metabolic rate increased as a function of temperature but there was no significant difference in VO2 over the preferred temperature range. Like many other fossorial lizards, S. equalis is nocturnal and selects relatively low body temperatures compared to heliothermic lizard species.

Keywords: METABOLISM; NOCTURNAL LIZARD; OXYGEN CONSUMPTION; THERMOREGULATION

Document Type: Research Article

Publication date: July 1, 2009

More about this publication?
Related content

Tools

Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content

Text size:

A | A | A | A
Share this item with others: These icons link to social bookmarking sites where readers can share and discover new web pages. print icon Print this page