8.With the source-sink dynamics concept of metapopulation, a "sink" habitat is best described as which of the below?
(A) Predators are always absent.
(B) Local reproduction exceeds local mortality, exporting individuals.
(C) Population growth rate remains at zero.
(D) Local reproduction is insufficient to balance mortality without immigration.
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統計: 尚無統計資料
統計: 尚無統計資料