The Thermal Dependence of Feeding Behaviour, Food Consumption and Gut-Passage Time in the Lizard Lacerta vivipara Jacquin

1991 ◽  
Vol 5 (4) ◽  
pp. 507 ◽  
Author(s):  
R. Van Damme ◽  
D. Bauwens ◽  
R. F. Verheyen
Keyword(s):  
Food Consumption ◽  
Feeding Behaviour ◽  
Passage Time ◽  
Thermal Dependence ◽  
Gut Passage ◽  
Lacerta Vivipara

A simple parametric method for reducing sample sizes in gut passage time trials

Ecology ◽  
2009 ◽  
Vol 90 (8) ◽  
pp. 2328-2331 ◽  
Author(s):  
John Rawsthorne ◽  
David A. Roshier ◽  
Sean R. Murphy
Keyword(s):  
Parametric Method ◽  
Passage Time ◽  
Sample Sizes ◽  
Gut Passage

Activity-related constraints on overwintering young-of-the-year striped bass (Morone saxatilis)

2001 ◽  
Vol 79 (1) ◽  
pp. 129-136 ◽  
Author(s):  
Thomas P Hurst ◽  
David O Conover
Keyword(s):  
Food Consumption ◽  
Striped Bass ◽  
Morone Saxatilis ◽  
Metabolic Cost ◽  
Hudson River ◽  
Energetic Cost ◽  
Energy Budgets ◽  
Swimming Velocity ◽  
Thermal Dependence ◽  
Young Of The Year

The importance of activity to overwintering fishes has received little attention. Activity imposes two constraints: maximum swimming speed limits habitats that can be occupied for short periods of time, while the metabolic cost of swimming limits the habitats that are suitable for long-term residence. We measured the energetic consequences of activity and maximum swimming speeds of young-of-the-year striped bass (Morone saxatilis), a species that overwinters in tidal estuaries. The energetic cost of swimming was determined from energy changes in unfed fish forced to swim at various speeds, while energy changes in fed fish provided a measure of their ability to offset swimming costs through feeding. In high-velocity treatments, mortality was size-dependent and appeared to be related to fatigue rather than to depletion of energy reserves. The energetic cost of swimming increased with swimming velocity, but fish increased food consumption and thereby met their metabolic needs. In a second experiment the thermal dependence of swimming capacity in winter-acclimated striped bass was measured. Swimming speeds increased with temperature, from 2.7 body lengths (BL)/s at 2°C to 4.8 BL/s at 8 and 11°C, but were considerably below observed flow velocities in the Hudson River, suggesting a need for behavioral or physical refuge from tidal currents. These results indicate the flexibility of energy budgets of overwintering fishes, allowing energetic stress to be minimized by reducing activity or elevating food-consumption rates when sufficient prey are available.

scholarly journals Internal dispersal of seeds by waterfowl: effect of seed size on gut passage time and germination patterns

2010 ◽  
Vol 97 (6) ◽  
pp. 555-565 ◽  
Author(s):  
Jordi Figuerola ◽  
Iris Charalambidou ◽  
Luis Santamaria ◽  
Andy J. Green
Keyword(s):  
Seed Size ◽  
Passage Time ◽  
Gut Passage

scholarly journals Estimation of gut passage time of wild, free roaming forest elephants

2019 ◽  
Vol 2019 (1) ◽  
Author(s):  
Christopher Beirne ◽  
Chase L. Nuñez ◽  
Melissa Baldino ◽  
Seokmin Kim ◽  
Julia Knorr ◽  
...  
Keyword(s):  
Passage Time ◽  
Gut Passage ◽  
Forest Elephants

scholarly journals Adapting Methodology Used on Captive Subjects for Estimating Gut Passage Time in Wild Monkeys

2020 ◽  
Vol 91 (4) ◽  
pp. 417-432
Author(s):  
Simon David Stringer ◽  
Russell A. Hill ◽  
Lourens Swanepoel ◽  
Nicola F. Koyama
Keyword(s):  
Passage Time ◽  
Gut Passage

Gut passage time and viability of seeds consumed by Australian marsupials

2020 ◽  
Author(s):  
Gabrielle Beca ◽  
Bryony Palmer ◽  
Leonie E. Valentine ◽  
Todd E. Erickson ◽  
Richard J. Hobbs
Keyword(s):  
Passage Time ◽  
Gut Passage
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