ノネズミ個体群に対する早春の除去効果

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  • Effects of spring-removal on the populations of small rodents.
  • ノネズミ コタイグン ニ タイスル ソウシュン ノ ジョキョ コウカ

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Changes in numbers, recruitment of new individuals, survival of residents, cohort structure and sex ratios of small rodents were examined for colonized populations in the areas from which individuals were removed in advance in the early spring of 1984 and 1985. For Clethrionomys rufocanus bedfordiae, Apodemus argenteus and A. speciosus ainu, these demographic variables did not differ much from those of control populations.

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