Zobrazeno 1 - 10
of 192
pro vyhledávání: '"Ulysses S. Seal"'
Publikováno v:
Zeitschrift für Tierpsychologie. 68:24-40
and Summary To examine the selective pressures influencing evolution of the nuclear family social system in canids, it is important to determine the behavioral and physiological reasons why some adults do not reproduce within a pack. Two captive wolf
Publikováno v:
Canadian Journal of Zoology. 78:2147-2155
The urinary allantoin:creatinine (A:C) ratio (expressed in micromoles of allantoin to micromoles of creatinine) has shown potential as an index of recent winter energy intake in preliminary controlled studies of elk (Cervus elaphus) involving mild co
Publikováno v:
Canadian Journal of Zoology. 76:2090-2095
Physiological indicators of muscle catabolism would aid assessment of winter nutritional restriction of ungulates, and urinary 3-methylhistidine has exhibited potential in this regard in several species. We examined the effect of chronic moderate and
Publikováno v:
BioScience. 47:689-698
B iological diversity is the key to maintaining life as we know it (Wilson 1992). However, rapidly growing human populations place extraordinary pressures on ecosystems, such as large-scale environmental destruction, habitat conversion, habitat fragm
Autor:
Ulysses S. Seal, Susie Ellis
Publikováno v:
Biodiversity and Conservation. 4:553-572
As wildlife populations and habitats continue to diminish at alarming rates all over the world, those responsible for wildlife management recognize that global, integrated, multi-dimensional strategies must be developed to respond to the escalating c
Publikováno v:
Canadian Journal of Zoology. 71:1448-1453
We studied the hematology and blood chemistry of 33 adult bobcats (Felis rufus) captured from 1982 through 1985 in southeastern Idaho during a decline in lagomorphs, their major prey. Our objectives were to relate blood physiology of bobcats to sex,
Publikováno v:
Journal of Mammalogy. 74:304-315
We evaluated the use of serum chemistry and hematological variables as indices of habitat quality for adult (≥4 yr) female black bears ( Ursus americanus ) in northeastern Minnesota. Blood samples ( n = 182) collected from 48 adult females during 1
Autor:
L. A. Johnston, Ulysses S. Seal, R. L. Tilson, David E. Wildt, L. G. Simmons, T.S. Gross, A. M. Donoghue, Douglas L. Armstrong
Publikováno v:
Reproduction. 96:555-564
Electroejaculates from tigers were collected and half was used fresh to inseminate tiger eggs in vitro and domestic cat eggs stored in a hypertonic salt solution. The remainder was pelleted, frozen in a solution of 20% egg yolk, 11% lactose and 4% gl