Resting and diel respiration rates for the burrowing wolf spider Geolycosa domifex (Hancock)

1979 ◽  
Vol 57 (10) ◽  
pp. 1922-1933 ◽  
Author(s):  
Donald J. McQueen ◽  
Ingrid M. Jensen ◽  
Brandon S. Dyer
Keyword(s):  
Wolf Spider ◽  
Activity Monitoring ◽  
Respiration Rates ◽  
Respiration Model ◽  
Fur Animals

Respiration rates were measured for the burrowing wolf spider Geolycosa domifex (Hancock) during 1977 and 1978. Most experiments were run for at least 24 h and respiration rates (micro-litres CO2 per hour) and activity were monitored continuously. Experiments were conducted at 14.5, 18, and 22 °C, and it was found that respiration (R) was related to both weight (W) (R = aWb) and temperature. A brief model relating respiration, weight, and temperature was compared with independently collected data (1978) fur animals exposed to 20 °C. The expected and observed mean respiration rates were not different (α = 0.05) but the slopes (b) were different (α = 0.05}. The diel respiration patterns suggested that there was a significant amount of variation between animals, but that the highest respiration patterns always occurred during the dark. The respiration rates recorded for G. domifex were lower than those found for other species. This was due to the fact that activity monitoring allowed resting respiration data to be collected exactly when the spider was resting. The data also showed that active respiration rates were several times higher than resting rates, and that active rates will be very important to the development of a complete respiration model.

scholarly journals Euphausiid respiration model revamped: Latitudinal and seasonal shaping effects on krill respiration rates

2014 ◽  
Vol 291 ◽  
pp. 233-241 ◽  
Author(s):  
Nelly Tremblay ◽  
Thorsten Werner ◽  
Kim Huenerlage ◽  
Friedrich Buchholz ◽  
Doris Abele ◽  
...  
Keyword(s):  
Respiration Rates ◽  
Respiration Model

Active respiration rates for the burrowing wolf spider Geolycosa domifex (Hancock)

1980 ◽  
Vol 58 (6) ◽  
pp. 1066-1074 ◽  
Author(s):  
Donald J. McQueen
Keyword(s):  
Body Weight ◽  
Simple Model ◽  
Surface Activity ◽  
Wolf Spider ◽  
Wolf Spiders ◽  
Respiration Rates ◽  
Vertical Activity ◽  
Burrow Activity

The locomotion of individual burrowing wolf spiders, Geolycosa domifex (Hancock), was continuously monitored over 24-h periods and at the same lime respiration rates (microlitres CO2) were also continuously recorded. Five categories of activity and rest were identified: (1) in-burrow activity, (2) surface activity, (3) vertical activity, (4) in-burrow rest, and (5) surface rest. Respiration rates were determined for each category with respect to spider weight and temperature. The vertical activity rates were 10 times higher than resting rates, the surface activity rates were 4.5 times higher, and the in-burrow activity rates were 3.2 times higher. The activity–respiration rates were combined in a simple model which was tested against independently collected data and found to be in agreement. Scope for activity was calculated with respect to both weight and temperature, and it was found that the smallest animals at the lowest temperatures had the greatest scope for activity expressed as microlitres CO2 per gram body weight.

Ambulatory Activity Monitoring

2009 ◽  
Vol 14 (2) ◽  
pp. 142-152 ◽  
Author(s):  
Johannes B.J. Bussmann ◽  
Ulrich W. Ebner-Priemer ◽  
Jochen Fahrenberg
Keyword(s):  
Physical Activity ◽  
Activity Monitoring ◽  
Main Stream ◽  
Computer Algorithms ◽  
Ambulatory Activity ◽  
Physiological Variables ◽  
Piezoresistive Sensors ◽  
Self Reports ◽  
Recent Developments ◽  
Objectively Measured

Behavior is central to psychology in almost any definition. Although observable activity is a core aspect of behavior, assessment strategies have tended to focus on emotional, cognitive, or physiological responses. When physical activity is assessed, it is done so mostly with questionnaires. Converging evidence of only a moderate association between self-reports of physical activity and objectively measured physical activity does raise questions about the validity of these self-reports. Ambulatory activity monitoring, defined as the measurement strategy to assess physical activity, posture, and movement patterns continuously in everyday life, has made major advances over the last decade and has considerable potential for further application in the assessment of observable activity, a core aspect of behavior. With new piezoresistive sensors and advanced computer algorithms, the objective measurement of physical activity, posture, and movement is much more easily achieved and measurement precision has improved tremendously. With this overview, we introduce to the reader some recent developments in ambulatory activity monitoring. We will elucidate the discrepancies between objective and subjective reports of activity, outline recent methodological developments, and offer the reader a framework for developing insight into the state of the art in ambulatory activity-monitoring technology, discuss methodological aspects of time-based design and psychometric properties, and demonstrate recent applications. Although not yet main stream, ambulatory activity monitoring – especially in combination with the simultaneous assessment of emotions, mood, or physiological variables – provides a comprehensive methodology for psychology because of its suitability for explaining behavior in context.

EFFECT OF VARIOUS HORMONES ON THE KIDNEY RESPIRATION RATES IN THE CUTTHROAT TROUT (SALMO CLARKI CLARKI)

1960 ◽  
Vol XXXIII (III) ◽  
pp. 428-436 ◽  
Author(s):  
W. N. Holmes
Keyword(s):  
Single Dose ◽  
Respiration Rate ◽  
Cutthroat Trout ◽  
Adaptive Mechanism ◽  
Respiration Rates ◽  
Salmo Clarki

ABSTRACT Relatively large doses of vasopressin administered intraperitoneally to the trout significantly enhanced the kidney respiration rate. In contrast to vasopressin a single dose of oxytocin depressed the kidney Qo2 value. This depression continued throughout the observed 24 hour period after injection. Cortisol enhanced the kidney Qo2 values significantly and to a greater extent than vasopressin. These results are discussed in relation to possible adaptive mechanism in euryhaline species of teleosts.

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