Sexual Behavior in Penguins

Sub-ice foraging behavior of emperor penguins.

Emperor penguins (Aptenodytes forsteri) were equipped with a remote underwater video camera, the Crittercam, to evaluate sub-ice foraging behavior while the birds dived from an isolated dive hole. Three birds dived and foraged successfully for 1 h periods after being trained to wear and to dive with a harness for camera attachment. Video and depth profile recordings revealed that emperor pengui...

Penguins 2002 : Penguins in K !

Huddling behavior in emperor penguins: Dynamics of huddling.

Although huddling was shown to be the key by which emperor penguins (Aptenodytes forsteri) save energy and sustain their breeding fast during the Antarctic winter, the intricacies of this social behavior have been poorly studied. We recorded abiotic variables with data loggers glued to the feathers of eight individually marked emperor penguins to investigate their thermoregulatory behavior and ...

Corticosterone predicts foraging behavior and parental care in macaroni penguins.

Corticosterone has received considerable attention as the principal hormonal mediator of allostasis or physiological stress in wild animals. More recently, it has also been implicated in the regulation of parental care in breeding birds, particularly with respect to individual variation in foraging behavior and provisioning effort. There is also evidence that prolactin can work either inversely...

Sexual Behavior Dysfunction in Stallions

Sexual behavior problems in the stallion include several distinct types of dysfunction. Successful treatment, whether by tradit ional behavior modification or by pharmacological manipulation, usually depends on diagnosis of the specific dysfunctions involved. The following d’ lscussion of behavioral problems, evaluation, and therapy is organized according to the common types of sexual behavior ...