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| 245 | 1 | 0 | _aEternal external threat |
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_aBiología de la conservación _93740 |
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_aMigraciones _916308 |
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_aClima _992779 |
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_lParque Nacional Santa Rosa _pCosta Rica _992749 |
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| 041 | 0 | _aInglés | |
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_aJanzen, Daniel H. _93808 |
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| 942 | _cARTICULO | ||
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_tConservation Biology _324 _q286-303 _d1986 |
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