winter

Tag archives for winter

Exposing Siberian hamsters (Phodopus sungorus) to shorter photoperiods (think winter) for about two months causes the animals to spontaneously undergo daily bouts of torpor during which time they decrease metabolic rate to conserve energy.  New research published in the American Journal of Physiology – Regulatory, Integrative and Comparative Physiology was designed to examine whether decreases in growth hormone secretion…

Dr. Walter Arnold (University of Vienna) and colleagues were interested in studying how Northern ungulates cope (physiologically) with limited food supplies during the winter months. Ungulates are known to reduce energy expenditure during the winter. A new study published Wednesday in the American Journal of Physiology-Regulatory, Integrative and Comparative Physiology describes how these animals adjust their nutritional intake. Dr. Arnold’s team examined intestinal transport…

What do elk and deer eat in the winter?

This was a very good question brought up by a reader of the prior post. As it turns out, deer and elk move between summer and winter ranges. The winter range is at a lower elevation where there are more resources such as shrubs and grasses. Since they eat similar foods, they often compete for…

Ever wonder what reindeer eat?

Unlike Santa’s reindeer living in the lap of luxury at the North Pole, wild reindeer that live in the barren tundra have to find their own food. Being too chilly for trees, the tundra is hospitable to only shrubs, grasses and lichen, which are abundant during the warmer seasons. However, during the winter when the…