Mass Change Pattern of Blackcaps Refueling During Spring Migration: Evidence for Physiological Limitations to Food Assimilation

Robotic spring-mass walkers – potential and limitations

As spring-like leg behaviour in human running was observed in a number of studies [1] the spring loaded inverted pendulum (SLIP) model was initially proposed as a template model for running and hopping [2]. Based on the model behaviour a number of predictions were made concerning the ability to reproduce dynamics of walking gaits [3], stability measures and stabilisation strategies [4] as well ...

During stopover, migrating blackcaps adjust behavior and intake of food depending on the content of protein in their diets.

During migration, birds undergo alternating periods of fasting and re-feeding that are associated with dynamic changes in body mass (m(b)) and in organ size, including that of the digestive tract. After arrival at a migratory stopover site, following a long flight, a bird must restore the tissues of its digestive tract before it can refuel. In the present study we examined how the availability ...

The physiological limitations of performance during acceleration.

A PILOT'S TOLERANCE to eyeballs-down acceleration can be readily assessed from the g stress levels at which he loses vision and then consciousness. With g stress applied at right angles to the spinal axis (eyeballs in or eyeballs out), however, the cardiovascular impairment is so much less severe that there is no comparably dramatic end point to mark tolerance. A crude evaluation of tolerance t...

Short communication:A study of food consumption of the deepwater Goby, Ponticola bathybius (Kessler, 1877), during spring migration in the southern Caspian Sea

Short communication:A study of food consumption of the deepwater Goby, Ponticola bathybius (Kessler, 1877), during spring migration in the southern Caspian Sea

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