Cited by 86
Northwest College
Publishes on Bat Biology and Ecology Studies, Animal Ecology and Behavior Studies, Physiological and biochemical adaptations. 54 papers and 530 citations.
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Sections and macerated specimens of kidneys from several species of wild and domestic mammals injected with India ink or vinyl acetate, or both, show that the specialized blood vessels of the renal medulla (vasa recta) consist of parallel, relatively unbranched vessels which break up into plexuses at different levels of the medulla. This concept differs from that expressed in many current textbooks. In some species there is a distinct zonation of the medullary blood supply, and in certain other species no zonation was observed. Functional differences exist between these two groups, and it is suggested that these differences may be due to the vasa recta.
In order to determine the endocrine factors in the production of the incubation patch of phalarope birds (Steganopus tricolor and Lobipes lobatus), adults of both sexes have been maintained in captivity and injected with estradiol, testosterone, or prolactin, or with different combinations of these hormones. Only testosterone and prolactin in combination produced incubation patches in all birds, both male and female, in the two species.