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Population regulation of the spiny water flea (Bythotrephes longimanus) in a reservoir: Implications for invasion
Population regulation water flea Implications for invasion
2014/4/4
We conducted a 3-yr study of the population dynamics of the invasive cladoceran Bythotrephes longimanus in
Island Lake Reservoir (Minnesota) and compared our results to other human-constructed reserv...
Overview Chapter 3：Birth regulation in Europe Completing the contraceptive revolution
childbearing contraception Europe fertility
2008/12/18
Early in the 21st century modern contraception -- primarily hormonal methods, advanced IUDs, sterilization and condoms -- has become the main instrument of birth regulation in Northern and Western Eur...