The influence of pheromones produced by freely growing laboratory populations on the reproductive maturation of prairie deermice following prenatal and postnatal exposure

Population Ecology - 1977
Patricia L. Kipps1, C. Richard Terman1
1Laboratory of Endocrinology and Population Ecology, Biology Department, College of William & Mary, Williamsburg, USA

Tóm tắt

SummarySignificantly more females reared on bedding soiled by different populations reproduced by 100 days of age than those reared on bedding soiled by the same populations (P<.1) or on clean bedding (P<.025) whereas the latter two groups did not differ significantly. Significantly greater percentages of females reproduced in both treatments maintained on soiled bedding than was true in the populations from which the bedding came. There were no significant differences between treatments in the weights of the reproductive organs (testes, seminal vesicles, ovaries, uteri) or in the numbers of corpora lutea or mature follicles in the ovaries of nulliparous females. The data suggest that if there were reproductively inhibiting pheromones influencing the population animals, they were altered or dissipated immediately after removal of the bedding from the population enclosures or that they were nonfunctional in the absence of the population animals. These data further suggest that the reproductive inhibition of population young is due to the presence of the populaton animals and that sociobiological factors within the populations act to prevent the reproductively stimulating influence of materials which may be present.

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Tài liệu tham khảo

10.1016/0016-6480(63)90084-4

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Pedersfn T., 1968, Proposal for a classification of oocytes in the mouse ovary, J. Rep. & Fert., 17, 555, 10.1530/jrf.0.0170555

10.2307/1934030

10.2307/1934506

10.2307/1378348

10.1016/0003-3472(69)90117-1

Terman C. R., 1969, The influence of strange males on the growth of prairie deermouse embryos. (Abstract), Amer. Zool., 9, 569

Terman C. R., 1973, Reproductive inhibition inhibition in asymptotic populations of prairie deermice, J. Rep. & Fert. Suppl., 19, 457

Terman C. R., 1976, Cent. Sym. Science and Research., 190

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Population Ecology

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