INTERACTIVE EFFECTS OF HUMIDITY AND TEMPERATURE ON WATER-LOSS IN THE LUBBER GRASSHOPPER ROMALEA-GUTTATA

Authors
ROBERTS SP QUINLAN MC HADLEY NF
Citation
Sp. Roberts et al., INTERACTIVE EFFECTS OF HUMIDITY AND TEMPERATURE ON WATER-LOSS IN THE LUBBER GRASSHOPPER ROMALEA-GUTTATA, Comparative biochemistry and physiology. Part A, Physiology, 109(3), 1994, pp. 627-631
Citations number
30
Categorie Soggetti
Physiology,Biology
Journal title
Comparative biochemistry and physiology. Part A, Physiology → ACNP
ISSN journal
10964940
Volume
109
Issue
3
Year of publication
1994
Pages
627 - 631
Database
ISI
SICI code
1096-4940(1994)109:3<627:IEOHAT>2.0.ZU;2-S
Abstract
Water loss rates (WLR) at various combinations of temperature and rela tive humidity were measured in the lubber grasshopper Romalea guttata. WLR increased at higher humidities when rates were corrected for satu ration deficit and with increasing temperature when the saturation def icit was held constant (17 mmHg). The higher rates with rising humidit y may reflect an increase in cuticular permeability caused by the gras shopper altering or relaxing barrier mechanisms that operate in dry ai r.